b00sted

iTrader: (7)

Think a stock LS1 would have a problem making 500-525rwhp(through a th350) with an MP t70? Probably a truck manifold setup and a standalone with a speed-density tune. Already have a good drivetrain and a killer fuel system.

I was either going to run a stock LS6 intake, or a carburetor intake converted to EFI. The latter would probably work better with the turbo. Also possibly go to a set of stock 6.0 heads to drop the compression.

Anyways, any ideas or advice as far as the setup goes?

b00sted

iTrader: (7)

Forgot to mention, Katech rod bolts, arp head bolts, and a fel-pro head gasket. Just for added reliability.

98turbls1

iTrader: (17)

I wouldn't go with a standalone for just 525rwhp... I would keep a stock computer and use a custom OS... I think that you could easily make 525rwhp with that turbo if it's tuned right... Just make sure to get 60lb injectors for good measure because you can run up to 800rwhp thru a six speed... As far as the intake I would go with the carb intake if you're not on a budget and the LS6 if you are... It's really up to you.. What is this going into??

b00sted

iTrader: (7)

The car in the signature.

I was gonna megasquirt it. For the price I'd pay for LS1 edit or something, I can put the megasquirt in with cash to spare. And either use EDIS or just the MSD box(the one that is programmed via a laptop, not that one with the timing pills) to control spark. I was figuring 60-72 lb. injectors.

As far as the intake, LS6 would probably be the best idea. I'm not going for huge power. Plus I could run a flat hood and get rid of the huge cowl I have now.

jsmcortina

The Megasquirt can control the timing with stock sensors and stock coils. 60lb is theoretically enough for 800hp, so anything more may be greedy.

James

b00sted

iTrader: (7)

Can it?

I was reading about it, but didn't know they had it working with the stock crank/cam sensors yet. If that's the case then the megasquirt would be an even greater bang for the buck.

Project Dc2

iTrader: (4)

on 8 psi on my 98 camaro with LS6 intake manifold MP T70 crossover pipes off the stock manifolds ( non truck style,OEM with crossoverpipe)

car made 494 WHP 512 TQ

Willem @ Fuel Injection Concepts

iTrader: (2)

i made ~530/540 @ 9 psi on a camaro with truck heads with a MP t-70..

b00sted

iTrader: (7)

That's about where I'd want to be. If I can do 525 through a th350 I'd be happy. In my car the setup would fly. All while still being a mild streetable motor. But I like the idea of truck heads and even a small cam.

GMRL

Change the rings too for a boost friendly gap, add a bit more reliability.

valiant65

I'm glad to see that there are others that think same way that I. I'm gathering some parts for my -78 Fairmont stw for LS1+T56 conversion. My plan also is to use megasquirt and first go as NA but in the future put turbo on it. I have one new b&w S400 with 75mm compressor and a/r 1.10 T6 turbinehousing (turbinewheel also 75mm minor diam). What do you think, is this S400 too big for my otherwise stock LS1, should I change it to i.e. T70?

b00sted

iTrader: (7)

The housing sounds kind of big. T6 flange and the 1.10 sounds like it would spool slow.

valiant65

At the turbomustangs.com there are several guys using s400 w/ 1.32 housing in applications ranging 350 cid and up. Those are mainly strip vehicles though but still everybody say that s400s are quick spooling turbos even with that much bigger a/r 1.32 turbine.
I ordered mine for my earlier project which had stock 360 mopar but didn't have a chance to test that spooling. Dave who sold that turbo to me said that it will be good in 360 if I keep rpms lower than 6500, and it should spool in at +2500 rpm. Guess I just have to try it...

jsmcortina

I wrote the code.

James