Tjolley

Been a long process. Knowing wat we know now about better head porting and some mods to the bottom end to make the engine run as efficiently as possible and to keep the blower from robbing a **** ton of power. Got some plans for the near future for alot more power! More flow = less boost = More power in more ways than 1 lol.

Viperoni

You're also not revving up to 8700rpm either. He's making ~250ftlb up at 8700rpm, you'd be lucky to see 200 if you could get up there.

Speedytec

iTrader: (3)

Care to tell a bit more about the engine mods and head work? Not trying to copy you, but an efficient engine without the blower robbing too much power is indeed the way to go:

In & exh side both just ported? (That thing sounds like it FLOWS!)
Stock or oversized valves?
Which brand/type pistons and rods you have in here?


Although I run an 80mm pulley on the TVS to keep my IAT's low-ish (road coarse racing...), I see I can use some Stage 3's in my life.

100% METH

iTrader: (3)

TJolley Ported head intake and exhaust side
Supertech #75 valve springs
Zzp stage 3 cams
LSJ lash adjusters
Stock LSJ valves

K1 H beam rods
Diamond pistons

Balance shafts deleted
Auxiliary chain deleted
Electric water pump

Of course a balanced rotating assembly

Speedytec

iTrader: (3)

That does not sound much different what you had before:
https://www.cobaltss.net/forums/dyno...s-dyno-312721/
(that's not yet on E85 there, not?)

The new "monster port" head must be something... :-)

100% METH

iTrader: (3)

It's the same setup

Previous engine that did 363whp was hurt.

Only difference now is a more aggressive ported head and I had each cylinder fire ringed (copper oringed)

Always been on e85

yellowsupercharged06

iTrader: (3)

the intake setup is ligit lol. Have you put it in the wheel well yet ? I have the same one sitting here just havent had time to dick around with fitting it into the car yet.

CobaltSS 16

iTrader: (3)

100% meth this thing is legit! Nice to break that barrier. Glad some old gurus still putting in work with the TVS 8)

CobaltSS 16

iTrader: (3)

Its gonna be a real tight fit, but should fit. Worst comes to worst... Why not take a dremel and do some work around the wheel well area? Should be able to safely take .25" around the whole intake hole without any issues and it'll drop in a lot easier.

100% METH

iTrader: (3)

Nah I drove 320 miles home on the stock intake/TB from Tjolley's.

Kind of been my motto with this entire build. Trevor Jolley and I built this to be driven, beat the living @$#$#%$ out of it, then drive it back home.
I'm obviously not doing 1000+ mile drives in it, but a near 700 mile round trip is a true test for a engine like this one.

The OTTP 3.5" CAI actually fits really well; I've had it installed properly in the past. We just had it installed that way for ease of install during the dyno.

Viperoni

Interesting that the LS4 TB + 3.5" intake starts showing a difference above ~3500rpm but then the gain starts declining after about 7k... wonder what the next restriction is?

100% METH

iTrader: (3)

Next restriction becomes the head / valve train

We've addressed everything but the valves themselves

advise

iTrader: (3)

The ls4 and the 3.5 added a good gain
Motors apart again going back together in the next month

100% METH

iTrader: (3)

30whp from such a simple bolt on...

I did CSS favor...

Leave your stock intake on your car, and save yourself a whole lot of cash until you start making north of 350whp.

advise

iTrader: (3)

yea but 80% of the dumb dumbs will get the biggest intake to say they did .....

but getting the 3.5 to play nice was interesting, had to scale the **** out of it to make it just idle to limp it to 06blackg85ss for tuning

yellowsupercharged06

iTrader: (3)

Did paul figure it out? My intake has been paiently waiting...

06blackg85ss

iTrader: (1)

somewhat, didn't get to finish dialing it in due to the bolt hole spewing coolant into the motor.
patiently waiting for him to get a new block in that bitch so we can try and break 500whp lol.

Scythe_Snake

Congratulations! As far as I know you have the highest TVS SC'ed car around! As said in the past, very well done. Car sounds awesome!

Turbo Tim made 402 (iirc) on the M62 for a while, its nice to see someone go after the record like that!

yellowsupercharged06

iTrader: (3)

my car is still in one piece if you want to pick up where u left off with him let me know lol

100% METH

iTrader: (3)

I appreciate it

He was somewhere around there on E98.

Time for the 2.6 pulley to spread the gap even further.

I'm itching to drop another grand and just start development/testing on the larger 1mm+ intake/ 2mm+ exhaust valve head with Tjolley.

There's a bit of power left on the table if the boost can get into the lower 20 psi range on a 2.6 without bumping the displacement.
Would help keep the IAT2 at bay too... temps sky rocket past 8000.. doesn't help it's on a stock endplate :P

06blackg85ss

iTrader: (1)

driveability at this point kinda sucks with that setup, well at least at the point we are now.
don't know if you are going to like how touchy it is. but soon I'll have some free time again. gotta bang out a few more things on my car this weekend so I can finally get back to working on the fast car (trans am) lol

yellowsupercharged06

iTrader: (3)

your better than this, your BCP lol id keep the lsj tb if thats an issue. anything is better than the injen i have lol

riceburner

iTrader: (66)

Always wanted to see one of these heads with a proper valvejob.

100% METH

iTrader: (3)

It's a costly experiment

Bumping to a +2 - 3mm valve on exhaust and intake side is a gamble without any support.

We're just a couple guys with cash, some skill sets, and a mission

Slowbalt2000

iTrader: (1)

keep the mission going man. I love it