There have been a few TVS threads lately and someone asked for a FAQ on the TVS/Harrop-lsj1320 (http://www.cobaltss.net/forums/showthread.php?t=143382), but the thread is going in a diff direction because of random bantering.

For a start:

Required Bare Minimum:
60# Injectors
Tune

HIGHLY Recommended: Basically required for any decent numbers
Intake
-or-
3" Intake
Header
3" dp
3" exhaust
Any combination of: Dual Pass (+/- Opt B), H/E, Meth
Clutch
Solid Motor/Tranny Mounts
-or-
Rotated Tranny Mounts
Return-style Fuel System for smaller than the "stock" 80mm pulley
-or-
larger injectors (72#)

Good extras
LS4 Throttle Body - if you can get used to the uber touchy throttle
Internals
Head port/polish
Upgraded Valvetrain

Vendors of the TVS/Harrop-lsj1320
OTTPerformance
Intense Racing

WickedSS2005's Personal Experience
My initial setup was the bare minimum. My last dyno was 318/288 @ 7,395rpm w/ afr of 11.9 and 17* timing @ 69*F w/ 48% humidity; and was still on the way up. Stock air box mod, pacesetter header, 3" catless dp, 3" custom exhaust, secondary cobra h/e, no meth. IAT2's topped at 133*F after the third pull. My 2.6/60's setup hit 160+ IAT2's after multiple runs and dyno'd in at 258/239.

Questions
so just out of curiosity, would it help if you tried to port the TVS at all? and i noticed that is doesnt the silencer holes like the m62 yet it is still a quieter whine for some reason any one know?

The TVS is designed for maximum performance and a direct statement from HARROP itself states: "Porting the HTV1320 can and will decrease performance and void warranty. Through extensive testing it has been designed to be the most effective directly from the manufacturer"

What PSI can I expect from "x" pulley? *note, this is with 2.5" exhaust. Take off 1-3psi depending on exhaust components
64mm / 2.5" ~ 27.5 psi
70mm / 2.75" ~ 25 psi
75mm / 2.95" ~ 22.5 psi
80mm / 3.15" ~ 20 psi
85mm / 3.35" ~ 17.5 psi
89mm / 3.5" ~15psi

i've already spent the 250 on my K&N .... will it fit up to the TVS... if not what needs to be done and/or who sells one that will fit??

Yes, the 2.5" intakes will work with the TVS. It's more of a matter of what Throttle Body you are running and use a coupler to make up the difference from the K&N to an LS4 throttle body.

Personally, I'm still on stock air box mod

how hard is it to install any how tos or pics?

There's a how-to on here. It varies slightly from a how-to to swapping pullies on the M62. Only diff is you need to make a modification to the MAP sensor and angle it to fit beneath the housing of the TVS and adjust your oil dipstick. Piece of cake.

What numbers can I expect?

My final numbers were 318hp/282tq. My mods were as follows: airbox mod, stock tb, 60# injectors, stock endplate and manifold, cobra h/e in-series with stock h/e, 90% distilled water/10% coolant w/ bottle of water wetter in the f/i cooling system, stock head, stock internals, 1.75" primary pacesetter header, custom 3" catless dp, custom 3" exhaust, stock clutch, stock axles, TTR motor/trans mounts. Best 1/4 mile was 13.1@110. 60' was 2.4 seconds.

Thanks this thread did actually help put things into perspective for me. :twothumbs

thanks

No problem guys

i just want 350 to the wheels
as a DD
&_&

You should add stuff like the dyno numbers and 1/4 mile times of guys who have the TVS. I'm sure that'd save a lot of "how much hp is this this and this setup making?". Just a thought.

i cant read english and retracted this statement

First I would need dyno's and 1.4 mi times. I can post Area's, but his are with added pixie dust. But there's no point in adding numbers w/o dyno pics. I dyno'd 318whp/282tq. But every car and mod setup is different.

Your mod setup for the TVS was fairly simple though right? Didn't you go pretty bare bones with it? I think a lot of people, myself included, are curious what kind of "bolt on" power it can generate. Say with the simpler of mods: injectors, intake header/downpipe, and possibly the dual pass endplate. It's tough comparing a TVS setup with say a Hahn Level__ setup because you know what kind of power you're bolting on with the Hahn because the kit has everything you need and it's all been dyno tested sparing the exaust. I think that's the main problem when considering the TVS over that. No hard numbers

Your mod setup for the TVS was fairly simple though right? Didn't you go pretty bare bones with it? I think a lot of people, myself included, are curious what kind of "bolt on" power it can generate. Say with the simpler of mods: injectors, intake header/downpipe, and possibly the dual pass endplate. It's tough comparing a TVS setup with say a Hahn Level__ setup because you know what kind of power you're bolting on with the Hahn because the kit has everything you need and it's all been dyno tested sparing the exaust. I think that's the main problem when considering the TVS over that. No hard numbers

Yes, my setup was the bare minimum. My last dyno was 318/288 @ 7,395rpm w/ afr of 11.9 and 17* timing @ 69*F w/ 48% humidity; and was still on the way up. Stock air box mod, pacesetter header, 3" catless dp, 3" custom exhaust, secondary cobra h/e, no meth. IAT2's topped at 133*F after the third pull. My 2.6/60's setup hit 160+ IAT2's after multiple runs and dyno'd in at 258/239.

Now go ahead and call bs on me all you want. My best friend is in auto performance at Ohio Northern University and liked to take my car up there to tinker around on. I'm not here to boast numbers and give in to the naysayers that are all over .net.

sub'd

click

good shit wickedSS, I've followed a lot of your info. threads, and posts. This one helps, and answers a lot of my questions.

As of now are you happy where you are with power or are you gonna go for more? Also I read some where Area47 is close or at 350whp, which is where I want to be, any info on what I may need to do to get the TVS there?

Thanks.

His "race" tune IIRC was 347whp. Keep in mind Area is a damn good tuner. But porting the head will help tremendously to get 350. For a DD, no meth, no p&p, I'm happy where I sit now.

You can add pulley/boost levels:

64mm / 2.5" ~ 27.5 psi
70mm / 2.75" ~ 25 psi
75mm / 2.95" ~ 22.5 psi
80mm / 3.15" ~ 20 psi
85mm / 3.35" ~ 17.5 psi
89mm / 3.5" ~15psi

His "race" tune IIRC was 347whp. Keep in mind Area is a damn good tuner. But porting the head will help tremendously to get 350. For a DD, no meth, no p&p, I'm happy where I sit now.


I have great tuner in my corner, so I'm not too worried about that, and you confirmed my decision to port the head.:twothumbs

My goal is 350, but will settle for 330 if all else fails.:lol:

Thats cool your sittin pretty just over the 300 mark:cool: Hopefully soon I'll be there, but the whole having a kid, and trying to buy house gets in the way sometimes:lol:

Yes, my setup was the bare minimum. My last dyno was 318/288 @ 7,395rpm w/ afr of 11.9 and 17* timing @ 69*F w/ 48% humidity; and was still on the way up. Stock air box mod, pacesetter header, 3" catless dp, 3" custom exhaust, secondary cobra h/e, no meth. IAT2's topped at 133*F after the third pull. My 2.6/60's setup hit 160+ IAT2's after multiple runs and dyno'd in at 258/239.

Now go ahead and call bs on me all you want. My best friend is in auto performance at Ohio Northern University and liked to take my car up there to tinker around on. I'm not here to boast numbers and give in to the naysayers that are all over .net.

Given the price of all my options, and the fact I already have everything I would need (save for the dual pass endplate wich I plan to add in the spring, and an exhaust wich will also come then, I think I am leaning heavily toward the TVS. I didnt support it at the beginning, I still dont really, but for the simplicity and the $$$ for what I want it fits perfect. I would be happy with a 300HP daily driver, no metch, and a safe tune I can drive all year long.

Having said that, what pully did you have to see the 318HP run? Your setup would pretty much be the same as mine I believe save for my exhuast not being on the car yet, and I have the stock airbox on the redline (wich is still the best option for us anyways.)

i think he said his setup was the 80mm pulley. I could be wrong tho.

i think he said his setup was the 80mm pulley. I could be wrong tho.

You following me around between forums?

nice thread

i think he said his setup was the 80mm pulley. I could be wrong tho.

Yep, the "stock" TVS pulley

you guys are making me jealous!!! i want one!!!!!

click :)

Nice thing I can consider with the TVS as well, is that you can make your car faster NOW while prepping to put it in. IE the injectors, intake, header, H/E. You can put all that stuff on and drop your pulley size until you get the $ for the final piece of the puzzle, the TVS. Just food for thought for us broke asses out there. You don't really have that option going turbo.

Nice thing I can consider with the TVS as well, is that you can make your car faster NOW while prepping to put it in. IE the injectors, intake, header, H/E. You can put all that stuff on and drop your pulley size until you get the $ for the final piece of the puzzle, the TVS. Just food for thought for us broke asses out there. You don't really have that option going turbo.

EXACTALLY! thats pretty much what i'm planning on doing although, i dunnno that i'll end up dropping pullies

EXACTALLY! thats pretty much what i'm planning on doing although, i dunnno that i'll end up dropping pullies

If you're going to throw 60lbers in there at some point, you might throw a pulley on there as well while your at it is what my reasoning is ::lol: I guess the issue with that though would be spending the $ to tune it...

You can add pulley/boost levels:

64mm / 2.5" ~ 27.5 psi
70mm / 2.75" ~ 25 psi
75mm / 2.95" ~ 22.5 psi
80mm / 3.15" ~ 20 psi
85mm / 3.35" ~ 17.5 psi
89mm / 3.5" ~15psi

where the 85 and 89mm come from why would you add bigger pullies than stock :cssNET:

some people might want to de-tune it for daily driving, winter, etc.

detuning a car has nothing to do with adding bigger pulleys , just bull timing etc gheez.

some people might want to de-tune it for daily driving, winter, etc.

or run less boost for a higher compression build :)

detuning a car has nothing to do with adding bigger pulleys , just bull timing etc gheez.

Preference maybe? It's just a listing of sizes and approx psi depending on mods. :rolleyes:

Preference maybe? It's just a listing of sizes and approx psi depending on mods. :rolleyes:

OK my bad. continue to teach the noobs , im going back to lurking.

i have a question that i havent been able to find the answer to,is the tvs just more efficiant at the boost level its equivalent to on the m62 or is it more efficiant lets say 2.85 pulley to 2.85 pulley as far as less heat and such?

um, im not one of the TVS geniuses, but its better all around. puts out more psi with less heat iirc

ok i mis-used the term "detune." I meant "dial back the boost for various conditions."



happy now? :D

ok i mis-used the term "detune." I meant "dial back the boost for various conditions."



happy now? :D

No because hpt limits boost as well.

not everyone has 24/7 access to hptuners so:blah:

No because hpt limits boost as well.

only on the LSJ :) HPT, even if it was available, wouldnt do shit for reducing my boost

not everyone has 24/7 access to hptuners so:blah:

If you were going to switch to a bigger pulley wouldn't you want to adjust the tune accordingly anyways? ;)

if your tune is worth a shit, your maf should be able to compensate for a different pulley without needing a retune:cool:

Ok this may be a dumb question, But all of the TVS guys are on the stock pulley, So what kinda numbers would we see with say a built motor and a smaller pulley?

I guess what im asking is where is the brick wall at with the TVS? You know kinda how 260-270 seems to be the wall for the m62

For one, not everyone has been running on the stock pulley. For lsjwannabe, the majority of the time he had one on his lsj, he was using the 2.75" pulley. He even experimented with a 2.5 for a little while but discovered that pulley size was way more that the block and head could withstand on a regular basis.

As for a wall with the tvs, it's considered to be between 300 and 350, depending on the level of tuning invested into the car. It hasn't been determined yet as to how much power it can produce with a ported head, but that info will hopefully come soon.

I know someone posted here earlier talking about the mods he had and being ready for a swap without much trouble. I had a 2.85" pulley, 60's and an injen intake. I swapped the m62 for the tvs and the injen for a r.a.w. intake. Even with the major differences, my tune was more than enough to suffice for a base tune for my car, and calculated errors were small. So it can be done.

Ahh i forgot about lsjwannabe's car....

Yeah, he and Area47 are the ones who have gone the furthest with their builds.

Yeah...

Area and his pixie dust dont count though :lol:

Doesn't mean that he isn't a badass tuner though. However he does it, the proof of his ability is there.

Sub For Later Consideration

up you go
how do we submit this to be a sticky?

Mmm Ill be getting into this very soon...

up you go
how do we submit this to be a sticky?

I've asked before, but been denied. Oh well.

I vote for this to be a sticky!

Why the hell wouldn't it be? Answers all basic questions on the TVS

That's ridiculous. Just because it's not changing out brake pads or an antenna it doesn't qualify? This is just another reason that we can't prosper as a group. The important things that need to be placed where all can find it is not granted any proper attention.

Sorry man. I hope this gets the recognition that it needs.

That's ridiculous. Just because it's not changing out brake pads or an antenna it doesn't qualify? This is just another reason that we can't prosper as a group. The important things that need to be placed where all can find it is not granted any proper attention.

Sorry man. I hope this gets the recognition that it needs.

Qftmft!!!

Alright so i've done the search hopefully i didn't miss it, but anyways i've gathered that it is recommended to run a 3 inch intake... sweet... maybe someday... but right now i've already spent the 250 on my K&N .... will it fit up to the TVS... if not what needs to be done and/or who sells one that will fit??

Alright so i've done the search hopefully i didn't miss it, but anyways i've gathered that it is recommended to run a 3 inch intake... sweet... maybe someday... but right now i've already spent the 250 on my K&N .... will it fit up to the TVS... if not what needs to be done and/or who sells one that will fit??

it will bolt up to the stock LSJ TB, and if you're using an LS4 TB, then a coupler can be used to connect it...so, in short, yes it will still work

length isn't an issue either? or will there need to be trimming?

trimming of what? it is designed to bolt up to a stock car. Stock throttle body, and if need be a stock intake. You won't have any problem running any normal intake. I would reccomend one of the higher end ones however, and the TVs is quite a beast.

would you consider the k&n high end?

nope.

would you consider the k&n high end?

high end would be a 3" intake such as RAW's intake for example

K&n is not a end high end one. injen is the best unless you go 3'', which you should have got from the start since they are about the same price

well i didn't know about the TVS when i bought my intake and i bought my intake used (only 2k miles on it) for 150 bucks and the dude washed my car lol

for the 3" intake do you have to do any cutting to make it fit into the fender?

Nope.. Its a tight fit but it does fit

high end would be a 3" intake such as RAW's intake for example

that's a bad example.

that's a bad example.

troof :lol:

that's a bad example.

lmao

that's a bad example.

well area i've read that your pretty much a master at the TVS and Tuning... what do you personally think needs to be done to get a basic set-up rolling...

that's a bad example.

haha. well, being as how i cant buy an LSJ intake, i dont research them, so the RAW one is the only 3" that i know of

well area i've read that your pretty much a master at the TVS and Tuning... what do you personally think needs to be done to get a basic set-up rolling...

a TVS and 60's, though most suggest just about all of the cooling mods out there

haha. well, being as how i cant buy an LSJ intake, i dont research them, so the RAW one is the only 3" that i know of



a TVS and 60's, though most suggest just about all of the cooling mods out there

iirc JBP (http://www.jbodyperformance.com/new/PartDetails.php?partId=907&catId=907&catName=JP0907) also has one and some other company, but i cant memer who that was

haha. well, being as how i cant buy an LSJ intake, i dont research them, so the RAW one is the only 3" that i know of



a TVS and 60's, though most suggest just about all of the cooling mods out there

The fujita is 3''
Im going to go with the 72s...

OTT is making a stainless 3'' intake

Yes, Yes they are :lol:

my TTR banner wnt buh-bye.

and by high end intake, i honestly meant and Injen, or K&N, OTTP or Rebel, just not some random E-bay shit, or like weaponR. a good proven intake, as the TVS is a whole new beast, and if the intake throws CEL's like mad on a stock motor, thats not something you need with the TVS

I honestly i have lost all respect i had for Turbotech

as have i. but hey, we all learn, and thats good. I have never had issues with TTR for the off-the-shelf stuff they carry, its just the sway bar and motor mount issues that have makde me think twice about their engineering.

That and I just dont like aaron :lol:, Most of his posts are out of line, Plus he has a second account just to BS with and bash other venders

Nor have I :lol: But OTT is just an awesome company with good people and they will risk a sell just to help you get your moneys worth

i have purchased from both, and let me tell you, OTT will bend over backwards for its customers. speaking of which, if you want stainless brake lines, PM tham.

I want a stainless intake! :lol:

as have i. but hey, we all learn, and thats good. I have never had issues with TTR for the off-the-shelf stuff they carry, its just the sway bar and motor mount issues that have makde me think twice about their engineering.

umm...story time? i just bought a TTR rear sway bar....

well area i've read that your pretty much a master at the TVS and Tuning... what do you personally think needs to be done to get a basic set-up rolling...

Please see page one of this thread. That's the purpose of the FAQ. The basics of what you need are already covered

umm...story time? i just bought a TTR rear sway bar....

Please PM. This is a thread for all the lost souls trying to do the TVS swap and most do not want to sift thru random BullShit for the info.

Post somewhere else

Sorry man... my bad.

Tom ftmfw

FAQ front page updated

Can we get a sticky on this?? Please

Thank you for the update!!

X2 on the sticky!

to get max power out of the tvs, you have to raise the rev limit to 7500. this gives you a window of 200 rpms above peak power.

so 7300 is like the sweet spot?

mine holds power all the way to 8k. don't do this on stock springs, or without large balls. larger object moving more air will move the powerband around a bit. you will see this on turbo cars as well

the stock valve springs/head assembly are only good til like 7250, right?

they are fine to 7500. just can't do it run after run

thats excellent info. Area, did you test any cams with the TVS on? have you tried adjustable cam gears? wondering what would work best. Especially because the TVS moves the powerband higher in the RPMS.

I think he figured out stock cams with cam gears made more power then GM performance cams, I could be wrong though

Well, i know that a lot of people including GM Performance Division feel that way as well, but the TVS is a different beast, just curious if he has tested his cams with this one as well.

I think that was with the TVS...


Once again i could be wrong

I am pretty sure it was with the heaton.

Like i said im not reall sure so area with have to clarify with a typical 3 word area response :lol:

Tom, are you planning on running a 3" intake, or staying with the ABM? Also, with an LS4 TB on this thing, throtle response must be brutal.

Tom, are you planning on running a 3" intake, or staying with the ABM? Also, with an LS4 TB on this thing, throtle response must be brutal.

Well, I plan to upgrade as money allows, but I have an Injen waiting to go on at the moment. Free parts FTW.

The LS4 TB is Touchy with a capitol T. Once relearning to drive with the change in throttle response and a little timing tweak, it's all good

Haha, ok good, because belive it or not i have a ported one at home, haha, and it's going on the car when i get back, and as soon as i buy and bolt up the TVs, it's gonna be a bitch. I'm looking forward to scaring the shit out of people who insist on driving it.

i have never used cam gears on my car.
i ran the gmr cams with the tvs and put down 342
im back on stock cams now. stil stock cam gears

would you reccomend cam gears?

Are we going to have to beg this out of you? :lol:

how bout I'll just tell you what he told me.

On the stock blower, You need not rev past 7500 rpms. Unless you have cams. On the stock cams, it's pointless, the power drops off.

On the tvs, It will make power past 7500, adjustable cams gears would definitely help. Or just aftermarket cams.

Ok, i understand cam gears, i just don't think Area has gotten around to trying them out, if he even wants to.

Aftermarket cams, yes, but what grind?

the grind depends on your setup up and what you want. If you are going to have to get them custom grind, go ahead and customize the grind to your car.

that sounds logical enough. I just don;t know enough about duration and lift and all that to design a set.

that sounds logical enough. I just don;t know enough about duration and lift and all that to design a set.

you don't have to figure out all that on your own. Whoever is going to do the regrind should be able to help you figure that stuff out. Plus, comp cams, crower, area47 and others are just a phone call away. Talk to a professional, get all your goals and your setup figured out, then get them to figure out the specs for you, then get the cams done.

Exactly what i would do in the event i started looking for a set. Just wondering if it is truly worth it for the LSJ. seems to like timing more than anything.

I dunno. Personally, my goals aren't that crazy. I'm sticking with the stock cams. They are great for a street car, which is what my car is.

Ralli, buy a TVS, you know you want to...

he does....

I'm waiting to see the gb price on wed. Then I'm going to have to beg the wife. lol.

get the roses and kneepads ready just in case. lol

hell go to that store you've always been embarassed to go into, and buy some things if you have to! haha.

I'm waiting to see the gb price on wed. Then I'm going to have to beg the wife. lol.

Same here, the GF is already flipping about it haha. Can't wait for OTTP to come back with the price tomorrow.

Question for you guys though, I know it's not necessary for the TVS, but what are the benefits of the LS4 TB vs stock? I know better response and all that, but what else? And if I got it would I have to custom-fab my Injen cai to fit up to it?

/flows better, because its bigger, and the HTV was designed for it.

thats as much as i know.

Yea I saw that, just wondering if anyone knew any more details about it. No biggie, just curious.

talk to fast98 or lsjwannabe, i got my ported one from lsj, they like it more than some of the other guys do.

It showed an increase of about 10-15 whp and wtq throughout the powerband. Not at the peak, but throughout the powerband, which is what matters. It's worth it. I got one that will be going on my car when I get it back together and I ported it myself.

If I'm making more than 20psi, what will happen to my stock boost gauge? Will it just max out? What can I do about this?

Your stock boost gauge will max out, then zero out after a bit. If you want a gauge that maintains the stock look but can go higher (up to the LSJ's PCM limited 22.35psi (http://www.cobaltss.net/forums/showthread.php?p=3125178#post3125178)), you may want to consider an SS T/C boost gauge. It is plug & play compatible with 05--07 supercharged models.

http://cobaltss.net/gallery/files/5/2/4/2008_chevrolet_hhr_ss_boost_gauge_1.jpg

You can buy one here: http://www.crateenginedepot.com/store/Cobalt-Boost-Gauge-25800715-P2291C212.aspx

If you will be making more than 22.35psi, you will need to switch to a mechanical boost gauge like this one:

http://cobaltss.net/gallery/files/5/2/4/6103_d_1.jpg

http://www.autometer.com/cat_gaugedetail.aspx?ref=search&gid=3442

Here is the how-to for the install: http://cobaltss.net/forums/showthread.php?t=15721

Purchased an SS T/C gauge, put it in my 07, and the reading was off. The above info is no good.

how hard is it to install any how tos or pics?

how hard is it to install any how tos or pics?

The ss/tc boost gauge? Or the TVS? There's a how-to on here. It varies slightly from a how-to to swapping pullies on the M62. Only diff is you need to make a modification to the MAP sensor and angle it to fit beneath the housing of the TVS and adjust your oil dipstick. Piece of cake.

has anybody TVS'd a 2.4?

Not that has come forth to my knowledge

not sticky yet?

has anybody TVS'd a 2.4?

i dont think so. Im hoping to be the first TVS 2.2 though :)
I need money for an engine build.....any1 wanna donate?

the ls4 tb all depends on air ingestion itself. larger pulley's like the 3.1 don't have a need for it IMHO. i put down 342 on the stock tb and a k&n. if you do not have a 3 inch intake to match the 3 inch inside diameter of the ls4 tb. you don't need it.

the ls4 tb all depends on air ingestion itself. larger pulley's like the 3.1 don't have a need for it IMHO. i put down 342 on the stock tb and a k&n. if you do not have a 3 inch intake to match the 3 inch inside diameter of the ls4 tb. you don't need it.


Thank you!

subscribed

has anybody TVS'd a 2.4?

It's not a cobalt, but my father and I are working on putting an m62 w/ LSJ intake on a 2.4 LE5 solstice, to later be replaced by a TVS when the driver gets comfortable with more power... here's a link to the thread over on solsticeforum.com: click here (http://www.solsticeforum.com/forum/f93/fueling-questions-m62-le5-53188/)

subscribed
bout damn time, newb....to the tvs sceen :lol:
It's not a cobalt, but my father and I are working on putting an m62 w/ LSJ intake on a 2.4 LE5 solstice, to later be replaced by a TVS when the driver gets comfortable with more power... here's a link to the thread over on solsticeforum.com: click here (http://www.solsticeforum.com/forum/f93/fueling-questions-m62-le5-53188/)

haha, sweet man. A tvs le5 solstice would be bitchin, but r u gonna cut off the snout of the tvs too?!?!?! lol

maybe i should check this thread out more

bout damn time, newb....to the tvs sceen :lol:

:lol: ive read this thread a few times but i figured now i better mark it

A tvs le5 solstice would be bitchin, but r u gonna cut off the snout of the tvs too?!?!?! lol

Yup, we'll have to hack it right off as well :thumb: Although, I'll admit it was a bit nerve racking to do to the m62...I'm guessing it will be even more so when we have to hack up the brand new TVS. You know how it goes, nothing is ever just the way you want it.

We're hoping to be able to really surprise some people at track days. The supercharger whine will be a bit of a giveaway, though.

And unlike you cobalt guys, we'll actually be able to put the power to the ground ;)

And unlike you cobalt guys, we'll actually be able to put the power to the ground ;)


not entirely :) I know this for a fact. Good luck to you though

And unlike you cobalt guys, we'll actually be able to put the power to the ground ;)

http://i97.photobucket.com/albums/l239/wickedss2005/Smilies/gtfo2.gif

I put power down just fine w/ a TVS thank you :)

the rotated mounts/solid control arms and some beefy axles will really help us. OTT/Powell FTW.

I put power down just fine w/ a TVS thank you :)

I won't ask what gear you're referring to...

I don't want to turn this into a FWD vs RWD/AWD discussion. Cobalt's are what you all have, so you all are just trying to do the best with what you have. I can respect that. Plus, their easier to drive. I really like what this guy has to say about FWD: http://farnorthracing.com/autocross_secrets10.html

The first line says it all. "Nothing says "triumph of enthusiasm over physics" like a FWD race car."

Go get 'em tigers! ;)

Okay, enough about that.

Lots of people talk about how restrictive the factory intake is at higher boost and power levels. Has anyone put another pressure transducer before/after the laminovas to know the pressure drop across them during a full power run?

slicks.

/end discussion of traction.

http://i36.photobucket.com/albums/e30/ralliartist/Racing%20Videos/th_100_2515.jpg (http://s36.photobucket.com/albums/e30/ralliartist/Racing%20Videos/?action=view&current=100_2515.flv)

you might pm philco and ask if he can make this a sticky, he stickied one of my threads when i asked him

damn ralli! lol thing launched like a bat out of hell

yeah, he sliped the clutch instead of launching and dropping it, right?

^ seems like it...it still doesnt sound like he went WOT till around 25-30mph or so

yeah

awesome! subscribed

I don't want to turn this into a FWD vs RWD/AWD discussion.


I wasn't referring to this....i was referring to actually having traction with a solstice in your supercharger setup......fyi - been there done that - ridden and driven one....traction is no better in that then it is in my redline.

I wasn't referring to this....i was referring to actually having traction with a solstice in your supercharger setup......fyi - been there done that - ridden and driven one....traction is no better in that then it is in my redline.

Check your pm's. I don't want to take this thread anymore off topic, but I want to know the whole story.

Anyway, back to the original topic, is anyone else planning on putting a TVS on a 2.4 LE5?

just me on a 2.2...many months from now when i can afford an engine build

whats your iat2 in rush hour traffic , driving and stoping not driving on the highway.

damn this is some good info. i plan on getting a tvs later on and the bigger tb. area if u dont mind pm me when you get a chance. thanks

whats your iat2 in rush hour traffic , driving and stoping not driving on the highway.

Driving and stopping would occasionally hit 50* above ambient. I never really have much experience w/ rush hour traffic tho.

yah , most people just do highway driving not stop and go stop and go like fl.

...um, im the opposite. all i do is 35mi/day, 5 days a week, city traffic only...f'in sux! lol

^^ i feel your pain. It took me 50 minutes to travel the whole 4 mile stretch of the I5 to 101N interchange after i left today

My drive to work (starting april 18th anyway) is about 15 miles of hilly windy country roads then about 10 miles of interstate. I think its a pretty awesome drive myself

My drive to work (starting april 18th anyway) is about 15 miles of hilly windy country roads then about 10 miles of interstate. I think its a pretty awesome drive myself

...well hey, :cussing:F*CK:cussing: YOU BUDDY!

:lol:lucky bastard:lol:


/threadjack

Your in calli, Thats what you get!

:lol:

Your in calli, Thats what you get!

:lol:

well my drive does have one nice little hill with a few twisties on it, but theres always too much traffic...and cops:thumbsdow

Yea the roads i take...I could do 120 and nobody even see it :-D

Sticky vote.

x2^^

sticky pl0x

Bump for guys getting them in the mail.....

bump for sticky status...still

Yea. Where the fuck is sticky status on this?

bump^

sub'd

how do we get sticky this?
since i know alot of ppl
are gettin a tvs.

I need the pic of the sensor that needs to be modified/ rotated.

I need the pic of the sensor that needs to be modified/ rotated.

You dont know where your map sensor is? dont worry when you lay the tvs down you will find out its gonna sit right untop of it.

Its the Map Sensor that sits ontop of the Intake Manifold.. You have to take it off and dremel/cutout a larger hole that way you can Rotate it to the left as the TVS will sit on top of it even when rotated, but rotated itll fit.. Don't worry about being able to tighten the bolt onto the map sensor as the TVS will stop that beast from even thinking of moving!

You make me proud Matt

Lol! Thanks bro.. I would take pics of it, but that takes to much effort.. Tom, I got my Header on, Intake Manifold on as well as Alternator and the Oil Pan all bolted up.. Waiting on Cam Cap Bolts and Just waiting to put on the TVS and Valve Cover as well as Coolant line and Fuel Rail.. Then you'll be rollin down here or vice versa!

http://www.cobaltss.net/forums/showpost.php?p=3581400&postcount=5

http://www.cobaltss.net/forums/showpost.php?p=3581400&postcount=5

thanks for the pic

Bump for Sticky Status

Bumpage.

amazing write up MAKE IT STICKY!!!

wtf? still no sticky?

Yes, my setup was the bare minimum. My last dyno was 318/288 @ 7,395rpm w/ afr of 11.9 and 17* timing @ 69*F w/ 48% humidity; and was still on the way up. Stock air box mod, pacesetter header, 3" catless dp, 3" custom exhaust, secondary cobra h/e, no meth. IAT2's topped at 133*F after the third pull. My 2.6/60's setup hit 160+ IAT2's after multiple runs and dyno'd in at 258/239.

Now go ahead and call bs on me all you want. My best friend is in auto performance at Ohio Northern University and liked to take my car up there to tinker around on. I'm not here to boast numbers and give in to the naysayers that are all over .net.

I call BS. :lol:........................................ J/K. You made more torque than Bryan though which is impressive. :)

I call BS. :lol:........................................ J/K. You made more torque than Bryan though which is impressive. :)

actually he didn't. i got tired of posting numbers a while back
:)

Good Thread. I personally dont need it but its good info :)

actually he didn't. i got tired of posting numbers a while back
:)

:lol:

but yeah, another vote for some sticky action. Maybe a new thread with all the information, but cleaned up?

:lol:

but yeah, another vote for some sticky action. Maybe a new thread with all the information, but cleaned up?
There needs to be some serious cleaning of the house in here. Here being the whole forum. Because it makes it difficult to find threads such as this. And I'd be wiling to bet that most of the guys who bought a TVS have never seen this thread and think that they can just throw one on a stock car and see 300+whp.

bump for sticky

There needs to be some serious cleaning of the house in here. Here being the whole forum. Because it makes it difficult to find threads such as this. And I'd be wiling to bet that most of the guys who bought a TVS have never seen this thread and think that they can just throw one on a stock car and see 300+whp.

Said cleaning could be done while an upgrade to the database is made so it doesnt error out twice a week... :D

as a matter of fact, i bet all the bullshit causes those errors. making the database so damn big with everyone's bickering

There needs to be some serious cleaning of the house in here. Here being the whole forum. Because it makes it difficult to find threads such as this. And I'd be wiling to bet that most of the guys who bought a TVS have never seen this thread and think that they can just throw one on a stock car and see 300+whp.

most but not all i looked at this before i got my tvs i also did alot of research on the forums about the tvs so i knew what i was getting into.

I also looked at this before i orderd my TVS. Lots of good information here, Thanks for all the help!

Bump for Sticky

Bump for sticky

AND a while back i saw a video posted on here of the same car with a before and after dyno run (the discussion was comparing the sound of the m62 to that of the tvs). I can't find it anymore.. Help?

subscribed

booty sex bump

was just wondering if you do a turbo swap for tha ss/sc what do you do about thabelt? wont it be longer cuz tha sc puley isnt there?

You may have the wrong thread, but in case you need clarification, the TVS is still a supercharger. You still use the stage 2 belt or the stock belt with an oversized tensioner.

You may have the wrong thread, but in case you need clarification, the TVS is still a supercharger. You still use the stage 2 belt or the stock belt with an oversized tensioner.

were would you get tha oversized tensioner?

ZZ performance has them or you can try and find it used on here!

You can pick one up here:

http://www.ottperformance.com/Cobalt/Ion-Superchargers-And-Pulleys/c2_95/p294/Oversize-Tensioner-Pulley/product_info.html

so if i ran with this "new" s/c and i had 72lb injectors, h/e, meth, dual pass plate, plugs, custom 3" intake, ls4 tb, 3" exhaust with long tub header no cat, whats the smallest pulley size i could run safely on it to get some good hp?

Theres no solid answer to that question since tuning is a major variable, but the smallest pulley I've heard of on similar setups is 2.75"

hmm ok.. well im tuning with hpt (obv) on my buddies dyno, so we have a good tune goin on and we pretty much kno what we're doin. Im just tryin to figure what is safe, but still get some good power

Theres no solid answer to that question since tuning is a major variable, but the smallest pulley I've heard of on similar setups is 2.75"

Someone very well known on here has run a 2.5" pulley on the TVS for a bit. From what I was told it was a pretty stout setup too. ;)

were would you get tha oversized tensioner?

or you can go to your local parts store and pick them up for 10 bucks. GTP supercharger belt tensioner pulley

How about we not talk about non-TVS in the TVS FAQ Thread. You people need to learn how to read and post in the right sections....

Updated some of the FAQ to the first page

someone sticky this shit

I agree GIVE IT A STICKY!!!!


:cssNET:STICKY THIS THREAD PLEASE!!!:cssNET:

probably re do the post so less clutter

probably re do the post so less clutter

I plan on that tomorrow. I've got the evening clear. I'l go thru the BS and filter it, post it back up, and pray for a sticky

^lets hope so, this helped me so much with my build. Im in the gathering parts stage, but i deffinantly got alot of help from this thread.

Thanks man, and you're welcome. I tried to contribute, but the hottest girl thread seems more important... lol

again..hott chicks..important lol

I don't know about you guys, but the Report Post (http://cobaltss.net/forums/images/buttons/report.gif (http://www.cobaltss.net/forums/report.php?p=3120802)) button might get the mods attention more than just posting asking for sticky status. I'll be using it when the new post goes up. :)

lol...well this was a good contribution, and deserves a sticky

Keep an eye out for tomorrow

Keep an eye out for tomorrow

There have been a few TVS threads lately and someone asked for a FAQ on the TVS/Harrop-lsj1320 (http://www.cobaltss.net/forums/showthread.php?t=143382), but the thread is going in a diff direction because of random bantering.

For a start:

Required Bare Minimum:
60# Injectors
Tune

HIGHLY Recommended: Basically required for any decent numbers
Intake
-or-
3" Intake
Header
3" dp
3" exhaust
Any combination of: Dual Pass (+/- Opt B), H/E, Meth
Clutch
Solid Motor/Tranny Mounts
-or-
Rotated Tranny Mounts
Return-style Fuel System for smaller than the "stock" 80mm pulley
-or-
larger injectors (72#)

Good extras
LS4 Throttle Body - if you can get used to the uber touchy throttle
Internals
Head port/polish
Upgraded Valvetrain

Vendors of the TVS/Harrop-lsj1320
OTTPerformance
Intense Racing

WickedSS2005's Personal Experience
My initial setup was the bare minimum. My last dyno was 318/288 @ 7,395rpm w/ afr of 11.9 and 17* timing @ 69*F w/ 48% humidity; and was still on the way up. Stock air box mod, pacesetter header, 3" catless dp, 3" custom exhaust, secondary cobra h/e, no meth. IAT2's topped at 133*F after the third pull. My 2.6/60's setup hit 160+ IAT2's after multiple runs and dyno'd in at 258/239.

Questions


The TVS is designed for maximum performance and a direct statement from HARROP itself states: "Porting the HTV1320 can and will decrease performance and void warranty. Through extensive testing it has been designed to be the most effective directly from the manufacturer"


64mm / 2.5" ~ 27.5 psi
70mm / 2.75" ~ 25 psi
75mm / 2.95" ~ 22.5 psi
80mm / 3.15" ~ 20 psi
85mm / 3.35" ~ 17.5 psi
89mm / 3.5" ~15psi



Yes, the 2.5" intakes will work with the TVS. It's more of a matter of what Throttle Body you are running and use a coupler to make up the difference from the K&N to an LS4 throttle body.

Personally, I'm still on stock air box mod



There's a how-to on here. It varies slightly from a how-to to swapping pullies on the M62. Only diff is you need to make a modification to the MAP sensor and angle it to fit beneath the housing of the TVS and adjust your oil dipstick. Piece of cake.



My final numbers were 318hp/282tq. My mods were as follows: airbox mod, stock tb, 60# injectors, stock endplate and manifold, cobra h/e in-series with stock h/e, 90% distilled water/10% coolant w/ bottle of water wetter in the f/i cooling system, stock head, stock internals, 1.75" primary pacesetter header, custom 3" catless dp, custom 3" exhaust, stock clutch, stock axles, TTR motor/trans mounts. Best 1/4 mile was 13.1@110. 60' was 2.4 seconds.

What size pulley were you rinning on the tvs to get 318hp/282tq?

I never dropped from the stock 80mm pulley