turbo charged 3.4 dohc....430 rwhp!

[FerrariFan]

Very nice work and numbers, I can't believe there's no link to video. What kind of work was done on the engine since clearly there's a lot more potential at only 12 psi, I believe the unofficial goal standard for many aspiring to build an ultimate boosted engine is 15 psi?

I'm bad about not taking lots of pictures and videos, when I start working on something, I want to get done. the camera and posting slows me down. I'll get some in car vid to post soon though.

As far as work to the engine it's pretty much bone stock internally. That's one reason I didn't want to push it with more boost. When it was at the dyno I was asked if I wanted to go for the "money shot" and bump it up to 15psi, but I thought that I have reached my goal, why push things and risk breaking something. I've just read too many posts about how everything is running great but they keep bumping up the boost for just a bit more power until the last post where you see pics of the big hole the rod punched through the block. I didn't want to be that guy.

As far as parts added, here's what I can remember off the top of my head.

Garrett 32-76R turbo and intercooler
Spec stage 3 clutch
Fidenza aluminum flywheel
custom short runner intake
LS1 throttle body
GM 7727 PCM with $8f
Greddy Profec boost controller
Tial wastegate
Greddy blowoff valve
Innovate wideband
42lb injectors
walbro fuel pump
powersteering delete pulley
undersized pulley

[robertisaar]

that is goddamn ridiculous.... then again, i like stupid amounts of power.

this is a double post since i posted in the 3.4 dohc performance section but I figured not everyone checks out every section and this may be of interest to the boost crowd.

hey guys, I haven't posted in a while but I thought I'd share the latest news from my 355 rebody.
After a custom turbo install and a slipping clutch and some tuning issues I decided to get some help. I took the car to Jeff Ianitello (Engineered Performance) near Atlanta, GA. He installed a Limited Slip Diff in the 282 Getrag and upgraded the clutch to a Spec Stage 3 with an Fidenza aluminum flywheel.
After lot's of chasing vacuum leaks and IAC problems he finally got some serious $8f tuning time in and got her to the dyno.

It makes a solid 430HP at the rear wheels at 12psi with zero knock retard on 91 octane pump gas.
My goal was 380 HP since that's the output of the 355's engine at the crank, anything over that is gravy. Lays a nice double line on the road thanks to the LSD

Here's a link to the dyno graph and some pics of the engine.

http://picasaweb.google.com/10357796...eat=directlink

Very nice work and numbers, I can't believe there's no link to video. What kind of work was done on the engine since clearly there's a lot more potential at only 12 psi, I believe the unofficial goal standard for many aspiring to build an ultimate boosted engine is 15 psi?

[ForcedFirebird]

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[FerrariFan]

this is a double post since i posted in the 3.4 dohc performance section but I figured not everyone checks out every section and this may be of interest to the boost crowd.

hey guys, I haven't posted in a while but I thought I'd share the latest news from my 355 rebody.
After a custom turbo install and a slipping clutch and some tuning issues I decided to get some help. I took the car to Jeff Ianitello (Engineered Performance) near Atlanta, GA. He installed a Limited Slip Diff in the 282 Getrag and upgraded the clutch to a Spec Stage 3 with an Fidenza aluminum flywheel.
After lot's of chasing vacuum leaks and IAC problems he finally got some serious $8f tuning time in and got her to the dyno.

It makes a solid 430HP at the rear wheels at 12psi with zero knock retard on 91 octane pump gas.
My goal was 380 HP since that's the output of the 355's engine at the crank, anything over that is gravy. Lays a nice double line on the road thanks to the LSD

Here's a link to the dyno graph and some pics of the engine.

http://picasaweb.google.com/103577966960525906703/DropBox?authkey=Gv1sRgCPnLnMu1t_umZg&feat=directlink