0Ron@Vengeance Racing

We recently built a Twin Turbo C6 Z06 for our customer and Outlaw 10.5 Racing champion Tim Lynch... For more information on the initial build check out this link

http://forums.corvetteforum.com/c6-f...tim-lynch.html

The original build was based on a stock LS7 block/Stock LS7 camshaft/Stock LS7 cylinder heads. Modifications to the engine consisted of forged pistons/rings/bearings/Dual Springs/Hardened pushrods/C5R Timing Chain/Head Studs/Trunion Upgrade...

Here is a dyno graph showing results on 11psi and 14 psi on the original LS7 engine. These dyno runs were performed the day prior to removing the LS7.

11psi- 672RWHP/689RWTQ
14psi736RWHP/738RWTQ



The new engine is still 427 cubic inches, but was built to handle much more power...

RHS Race Prep Block- 4.125 Bore/Standard deck
Lunati Billet Crankshaft- 4" Stroke
Lentz 6.125 Connecting Rods
Custom Diamond Pistons/Rings
Coated Main/Rod Bearings
Custom DOUBLE roller Timing Set
Ported/Shimmed LS7 Oil Pump
Custom Solid Roller Camshaft (240s Duration)
All Pro LSW Cylinder Heads
Jesel Rockers

Compression is 9.25:1 (The same as the LS7)

Aside from the shortblock being built to handle ALOT more power the biggest differences are GM LS7 Cylinder Heads Vs All Pro LSW heads and the OEM LS7 camshaft Vs the mild solid roller camshaft....

I must note, while we had the drivetrain out we removed the Aeromotive fuel system we had previously installed and replaced it with Racing Solutions Triple In Tank fuel system. The Aeromotive system had left Tim on the side of the road 3 times in a very short period of time so it had to be replaced. I am happy to say that we have had ZERO issues from the Racing Solutions fuel system.

Here is a dyno comparison of the GM LS7 Vs the RHS/All Pro combo making 11psi

GM LS7- 672RWHP/689RWTQ
RHS/All Pro- 769RWHP/750RWTQ

A gain of 97RWHP/61RWTQ at the same boost level..




You will notice we lost some low end power with the larger heads and camshaft, BUT this actually made the car more controllable as it wants to annihilate the tires at pretty much any point in the RPM....

Here is a 14lb dyno comparison

GM LS7- 736RWHP/738RWHP
RHS/All Pro- 854RWHP/816RWTQ

A gain of 118RWHP/78RWTQ



Here is our final pull on 15psi/pump gas/no methanol

Results: 880RWHP/817RWTQ



We are waiting for Tim to put a few more miles on the new combo and for the heat to break a bit. Once both of these things happen we will start tuning for big boost on C16... Things should get very interesting in the 25lb range

Here is an idle clip. Notice how mild the camshaft sounds in this video....

http://www.youtube.com/watch?v=kMi4xzbzIDs

Here are a few pics of the completed build. We were very pleased with the finished product.

FactoryRaceCar

peter pan

Wow beautiful build and sounds sweeeet

TRINIC5

Very nice built, the only thing I could be thinking hard about is the tripple in tank pumps, there are no way of knowing when one stops working untill you ask for more gas and the car goes lean, all pumps are feed by the same power supply so when there is a problem its very hard to detect.
Best of luck with the very nice build and hope Tim enjoys it more now, tell him to look out at some of those monsters out there.

DSteck

This makes me really anxious to dyno my car with the TTix kit since I ended up doing WCCH LSX-LS7 heads and a Pat G custom turbo cam. Nice results!

gotjuice?

Very nice, Clean build.

MGJ07C6

Results: 880RWHP/817RWTQ

I guess that's enough power......for now.

rayk

I can't wait to see 25lbs boost.

Like where the boost gauge was put, can it be seen when driving? Not a fan of the pillar setup. It would be nice to see a electric fuel pressure gauge next to the boost in the console where it can be seens.

JWell

that is beautiful

QTR-Z06

Great job

SinisterC6

What is the power limitation of a forged 427?

What would be the limitation on a forged, dry sleeved ls2?

What would be the price of this setup installed with the turbo system?

carlrx7

dyno's scare me, i dunno, i can take my car down the track and beat the **** out of it, but putting it on the dyno and going from 2k to 7k on the rollers, i just feel like something is going to let go.

-Carl

b16gsr

awesome, that is the idle i want when i do a cam

RAC3ME

Very nice build! Can you please share some info on the boost guage? What brand is it and how was it mounted? Kit? Thanks!

0Ron@Vengeance Racing

Thanx guys...

In reference to the boost gauge it is just an Autometer 2 1/16 guage that we mounted in the AC vent.

preston

If you don't mind ....

What A/R exhaust housing is being used on the GT35R's ?

And what nominal diameter are the charge pipes ?

And are you willing to share the cam specs ? (No worries, I'm mostly interested in the first 2 questions).

AtomicLS3

Wow, very nice build. Your engine bay looks beautiful. That motor sounds like it can handle 1000hp no problem. Turn up the BOOST!!!

0Ron@Vengeance Racing

We will be turning it up shortly!!! Subscribe for updated #s in the near future

Thanx for the compliments.

DSteck

We just put mine through the ringers last Friday on some lond winded 4th gear pulls on a Mustang dyno... It is still alive.

preston

Not sure if you saw my question (of if you didn't want to answer it

>What A/R exhaust housing is being used on the GT35R's ?
>What is the charge pipe sizing ?