Getting ready for the V8 swap

[S2V6RACER]

Dusty, the MAT temp was 105.5F at the time I crossed the finish line on the 8.48 @ 163.31 pass.

 

[Dusty Bradford]

Dusty, the MAT temp was 105.5F at the time I crossed the finish line on the 8.48 @ 163.31 pass.

105....nice:biggrin:

 

[TurboTerry87gn]

I was looking at the All-pro RR245-SP heads you suggested.
What are the down nozzles?
Do you think I really need upgraded exhaust valves. Iconel.

http://www.allproheads.com/images 08/Web 2008 Cat2-08.pdf

I just want to get some cylinder heads I can grow into. I know their more than I need for the 76mm turbo, but I might move up to the next class in a year ot two and I don't see a restriction on the turbo size.:biggrin:

 

[TurboTerry87gn]

Block

Well my 010 casting was bad, so I'm going to go ahead and build the Dart block.
Guess I will just have to bite the bullet and shell out the extra money for the good stuff.
Dart Little M
Oliver rods
Callies crank
All the expenisive stuff.

 

[Louie L.]

You are going about it the right way. Build it right the 1st time. Also if you werent aware, Dart is coming out with a new midline block,between stock and little m.

 

[John Wilde]

LL,

I have read 900-1000HP rating on the new block.
If that is true for most turbo race type applications I would probably still go
with the better block.

 

[Louie L.]

LL,

I have read 900-1000HP rating on the new block.
If that is true for most turbo race type applications I would probably still go
with the better block.

John,
I wasnt aware of that rating . But a prepped 010 SBC with 4 bolt main caps and half fill can do 900hp.

 

[TurboTerry87gn]

Back on task

Well I stopped working on the buick over the summer to spend time with the kids.
I have the main hoop and dash bar bent and set in place and hopefully I will have the inside part of the roll cage completed over the next 11 days as i'm on vacation.

The plans for the motor have changed. I have decided not to run in the True street class and but to make it a mean street car I can still enjoy on any sunny day.

Dart little m 4.125 bore
callies 3.625" stroke
388 cu/in motor 8.5 - 9 compression.
oliver rods
All pro heads
roller cam
Single forced inductions FI88 mm turbo.

I think this will give me the best of both worlds a smaller motor I can drive on 93 octance to cruise with and something I can spin the hell out of when I'm at the track so i can push that turbo.

 

[John Wilde]

Well I stopped working on the buick over the summer to spend time with the kids.
I have the main hoop and dash bar bent and set in place and hopefully I will have the inside part of the roll cage completed over the next 11 days as i'm on vacation.

The plans for the motor have changed. I have decided not to run in the True street class and but to make it a mean street car I can still enjoy on any sunny day.

Dart little m 4.125 bore
callies 3.625" stroke
388 cu/in motor 8.5 - 9 compression.
oliver rods
All pro heads
roller cam
Single forced inductions FI88 mm turbo.

I think this will give me the best of both worlds a smaller motor I can drive on 93 octance to cruise with and something I can spin the hell out of when I'm at the track so i can push that turbo.

Thanks for the update, that sounds like a really fun project.

 

[TurboTerry87gn]

Working on the roll cage.

Here is some pics pn the progress.

 

[TurboTerry87gn]

Roll cage

http://www.turbobuick.com/forums/safety-equipment/261796-pics-removable-dash-tight-fit-progress.html

 

[TurboTerry87gn]

Got some parts in today.

Tial wastegates should be in next week, Plan is to run twin 75mm turbos just waiting on some info abot the exhaust housing. Don't know if I can spool these things.

372" SBC with 23 degree heads that flow 300+ cfm and I plan on spinning it upto 8k rpm. I'm running a th400 with standard gears, brake, PTC converter, in a 3400 lb car I want to be able to run high 7's and was looking at the s400-75 turbos for a twin turbo setup, but was wondering about the exhaust housing A/R ratio.
I tried to get ahold of Jose at Forced Inductions but haven't had success. They offer a 1.10 housing witch is the better of the 2 options, they also offer the 1.32 housing which is too big i think.
Borg Warner & TurboDriven

 

[Louie L.]

Remember you are only feeding each turbo with 1/2 of the motor. Housing choice will be critical to get the car to spool.

 

[TurboTerry87gn]

Yeah I know, I'm not sure about these turbos but the price is good. I just need somebody whos tried it to say NO way to change my mind about these turbos. I will be using the xfi transbrake feature to spool before completly staged and a small shot of nitrous isn't out fo the question either.

Also I haven't made up my mind about the engine size either. I'll be using the dart little-m 4.125 bore but I don't have the crank or rods or pistons yet. I just wanted to leave enough piston compression height so the pin wasn't to high in the pistion.
My plan changed to a 3.48 stroke 4.125 bore 5.85 long rods. for a good rod ratio but thats not in stone.

 

[Louie L.]

Mine is 4.125 x 3.75. I have an off the shelf JE turbo piston with a upgraded pin. I was tired of the custom piston situation. I would build the motor as large as posible without compromising the piston design. 400 ci is a safe combo and you can use a larger bore for a bit more ci.

JEPistons.com | SMALL BLOCK CHEVY - EXTREME DUTY 23º INV. DOME








.

 

[TurboTerry87gn]

Louie what rod length are you using? I might go the same route. Also what head gasket did you choose?

 

[Louie L.]

5.7 Rod length, Cometic head gaskets. Just have to make sure that your crank will work with the rod length.

 

[TurboTerry87gn]

A little something to help spool the 75mm turbos.

 

[regal-nut]

just a warning. Callies does not do any induction hardnening any more all cranks are nitride coated.

 

[TurboTerry87gn]

Got my turbo's in. Two 75 mm borg warner.
I took a break on the car , but I got the top of the rollcage finally painted and the headliner will be in soon.