Expert Turbo on BB Chevy advice?????
 

I really want to take my 69 Vette to the next level. It has been decided at this point we will be keeping the car for some time to come (we had been considering selling it).

I want to take it to the next level. I let a 2000 LS1 slip right through my fingers a couple of months ago (for free!--DARN!)

Specs on car right now:

454 .060 over
9.2:1 speed pro forged pistons
Edelbrock oval port RPM heads
Edelbrock RPM cam
1.8 Crane Gold rollers
Pro-Flo EFI
ROD 6 speed (.62 final drive-may be .64, can't remember for sure)
3.55 gears
335 30 18 rear meats.
Hooker side pipe headers spun through JCL spiral baffles.

Now...I have visions of putting a pair of turbos on each side of the motor down low by the oil pan and still routing the exhaust through the side to retain the current sidepipe exhause look and sound.

Intercooling is not that important to me at the moment.

Performance wise I am looking for a 100 to 150 more hp on average with pump gas and that wicked cool sound of the turbo spool and blow off valves.

So...Can somebody put together list of parts and pieces that I would need to start looking for to make this happen? I would also like to retain the Pro-flo as they claim it will support up to 750 hp, but I do realize I would have to go back to Edelbrock and work on a new base chip to build my calibrations. Oh, I would also like to leave the internals of the engine as they sit right now.

I don't think you can use the Pro Flo on a forced induction. It won't run a 2 bar or 3 bar map sensor, so you have no tuning under boost.


The engine would physically run with the current parts and easily meet you HP goals, but the compression and cam are obviously not ideal. Cool project though.

Jody

I talked to the guys at Edelbrock. They have since re-vamped and now use the system on a fully programable computer. The bad news is that it does not appear mine is compatable to upgrade. I can always sell mine and offset the cost of another EFI system, or use the base hardware and upgrade the harness and sensors to a different system. Looks like this will be a challenge (to keep the expense reasonable).

On the turbo side however, what are you thoughts on the type of turbos I need and how I go about selecting them?

Chris, any ideas on what you are going to use for manifolds? And if you mount the turbos down low, you'll need a way to scavenge the return oil.

69MYWAY I shot you a PM.

As far as mounting the turbos low and oil drainage: Lingenfelter uses small gear scavenge pumps for their C5 vette turbo installs which also install their turbos very low; you may want to inquire if they will sell them seperately.

Troy

Tom Nelson
 

You Can Use The Manifold And Throttle Body And Probally The Rails I Have To See Them.chuck The Management Out The Door.injectors Two Something Like A 83 Pound Will Work Great.you Can Run Electromotive To Manage It.two 72 Mm Turbos.if You Look At Shawn Doves Corvette The Hedders We Built Him Exit In To Side Pipes.there Low But Not So Low You Have To Run A Pump Stay Away From That.100 To 150 Hp Extra Could Be Achieved With 3 Psi With This Set Up Theres Some Ideas For You .tom

Tom,

This is what my EFI looks like. It is a very standard fuel rail set up:

http://www.edelbrock.com/automotive/..._callouts2.gif

I remember the 87-88 Callaway Turbo Vettes had a pair of turbos mounted low on each side of the engine. I would need to set the oiling system up like they did as it appeared to work. Would 3 psi be enough to generate much turbo noise (the jet like whine when they spool)? I know that sounds silly, but I LOVE to hear a turbo spooling. It is the coolest sound next to the pure thunder rumble of the exhaust.

Got it!

:thumbsup:

Jody,

Don't know if I am barking up the wrong tree, but I just learned of this product:

http://www.technoresearch.com/Produc.../WinProFlo.htm

It allows a wider degree of adjustment with a lap top over the pro-flo system. I really am not schooled at all on forced induction and am not sure what the 2-3 bar map sensor is, but was wondering if this extra tuning ability brings that back into scope. It appears they are listing this for the small block application, but I am positive the software is the same to the 3550 system.