WickedSS2005

iTrader: (1)

There have been a few TVS threads lately and someone asked for a FAQ on the TVS/Harrop-lsj1320, 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.

Pyros777

iTrader: (4)

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

Whining-devil

iTrader: (1)

thanks

WickedSS2005

iTrader: (1)

No problem guys

Omnigear

iTrader: (4)

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

Billig ss/sc

iTrader: (5)

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.

Omnigear

iTrader: (4)

i cant read english and retracted this statement

WickedSS2005

iTrader: (1)

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.

ViLerocker

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

WickedSS2005

iTrader: (1)

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.

RooTBeeR

iTrader: (4)

sub'd

EatonTVS07

iTrader: (4)

click

SSMOKEM

good **** 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.

WickedSS2005

iTrader: (1)

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.

M88ArRamadi

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

SSMOKEM

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

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

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

runriot

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.)

BoostedYards86

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

runriot

You following me around between forums?

FASTECOTEC

nice thread

WickedSS2005

iTrader: (1)

Yep, the "stock" TVS pulley

crazy-eh666

iTrader: (1)

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

cobaltR

click

ViLerocker

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.

RooTBeeR

iTrader: (4)

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