sultan(ZR-1)KSA

hi to you guys as you know i own an 346CI LPE twin turbo 600 pakage 530WHP advertised corvette

http://www.lingenfelter.com/engine-p...-turbo-ls1-zo6

and i have managed to get out of it a max of 672WHP on 16.5PSI

i am looking for more power i have alredy upgraded the turbos to
GT3076 insted of the GT2871 that come on the car , but i feel the heads are the restrective so a frind is offering me these
https://www.patriot-performance.com/...&cat=37&page=2
for a very good price for my quest for 800WHP what do you think ?

please help

the same post is on another forum

teke184

iTrader: (5)

first link is just to a front page...no specifics

second link is dead.

FYI

sultan(ZR-1)KSA

thanks my frind


fixed the links

onfire

iTrader: (17)

For your turbo system, the LPE ported heads are not holding you back at all on power. If you keep running +17psi a thicker deck head like an AFR or TF might be nice for the head gaskets, but if you have a good tune, MLS and studs, you should be fine at 17psi....I've tuned two LPE cars at 650-700 rwhp at 17psi that ran for two years and the head gaskets looked great after teardown for refreshening.

Look elsewhere if you are missing power.

sultan(ZR-1)KSA

intresting point what are the cars that you tune , 600HP 650HP package , i have head studs on my car so i dont wory about lift

also some guys sugested a cam change but i dought that a cam alone can do much defrince

onfire

iTrader: (17)

Actually 3 LPE cars but one was only tuned for 8psi and 580rwhp. One was a 427 with GT2871r's that hit 700rwhp at 17psi through an automatic. One was a 650 package that hit 670rwhp with a manual. Both had EB2 to control the boost. All three cars used the baby GT2871r's.

The manual Vette is getting the larger turbo upgrade from Blouch turbo... DTE Powertrain is doing the installation....will be interesting to see the hp change with the larger chra's on 346ci...even though it's still a t25.

Mike 01WS6

I had Blouch do the works to my GT28's last fall. I still haven't fired it up yet, we'll see how far they take me.

sultan(ZR-1)KSA

I have sent you a PM

EPP

iTrader: (22)

Check out this twin turbo Z06 we built about four years ago, which was the very first car we used our blower camshaft in. Bob
http://www.exoticperformanceplus.com...Car.php?car=26

LS2TT

iTrader: (1)

I'm running the LPE kit with the GT28's on a 402ci. We tried to upgrade to the GT3071rs (larger turbine / same compressor), but we were unable to control boost creep as the car wanted to creep to 15psi regardless of WG springs. With the standard GT2871rs, we can control to a pump gas friendly 9psi.

Sultan(ZR-1), have you tested the GT3076r turbo on your LPE kit? If so, were you able to make low boost (<10psi) with the internal WG on the T25 housing?

Good luck with the 800rw goal. I'll be interested in your success with the GT3076s.

onfire

iTrader: (17)

That's what we're trying on the 346ci Vette. Bigger turbines but the same compressor.

sultan(ZR-1)KSA

ya i have it starting at 7.5PSI waste gate presure , 13PSI 30% waste gate openning and 17 to 18PSI full boost
and the 3076 fit with out any problem at all

sultan(ZR-1)KSA

haw much power did you make ?

LS2TT

iTrader: (1)

721rwhp/720rwtq with the GT2871s with 100 octane (6 speed manual corvette).
Never got a number with the GT3071rs since we had no boost control.

So you could control to a steady 7.5psi with the GT3076s using the T25 internally wastegated 5 bolt turbine housings? It also looked really tight to try and run a 4" inlet pipe to the turbos vs. the 3" from the GT28s.

sultan(ZR-1)KSA

you will still use a 3inch inlet becouse there is no way the 4 inch will rub through motor cradel and all the way to the filters , unles you try and fab somthing like the APS induction system , maby thin it might work for the 4 inch
also note i used skyline gt34 acuators but i am thinking of geting the HKS ones and swaping them to se what i can get
good luck on your project and if you need any help please feel free at any time

BlownVette 2001

iTrader: (2)

Hey Sultan,

Do you have any pictures of how your inter-coolers are mounted ?

I just bought a LPE kit and have the same older turbos that you had. Kit came with E-Boost2 Controller.

I have a 416FI (LS3/L92/L76) set-up with a Dr Phil Turbo cam.

I wonder what turbos LPE uses when they make the big power numbers in the C5's ? Anyone know ?

I'm hoping to make around 650RWHP through and A4.

sultan(ZR-1)KSA

hay my frind
Unfortenatly i dont have photos of the intercooler i forgot to take them whin i had the front bumper of.

i dought with these qubes and heads you will have a problem reaching your goal of 650whp.
regarding the turbos thye use on the big horse power cars thye use the same GT3071R or GT3076R as claimed by LPE , have a look at this link maby it will help
http://www.lingenfelter.com/LPEforum...?p=319#post319

please let me know what results did you get , i am now waiting for a new camshaft that is sposed to push my pwoer band up a bet and maby make more WHP , will wait and see.

PS. i decided to stay with my LPE heads for now and squeez evry last pony out of them .

wish me luck

sultan(ZR-1)KSA

one other thing , the main restrection on the LPE cars is the exhoust system aparantly they are using stock 2.5 inch pipes all the way to the end.
i am planning to do a dyno run with out the exhoust and see what will this baby run before i swap the camshaft
NEW cam specs are 228/232 588/595 with a 118 lobe seperation
if you dont mined sharinf your cam with us , please

thanks

BlownVette 2001

iTrader: (2)

Thanks Sultan,

I'm just trying to figure out how this whole kit will work and at what point the maximum boost etc ... will come in.

It's going to be awhile, like next summer before I finish up my car project.

Tony

BlownVette 2001

iTrader: (2)

Hi Sultan,

I don't really know what the cam specs are on my motor as they are kept a secret. I bought a Dr Phil turbo cam for my 416 CI motor and they installed the cam in the motor that I purchased, as that is the only way that you can get the cam.

I know the lift of the cam is around 600 in both the intake & exhaust, but that is it.