Im in the process of assembling a stock ls1 for a buddy of mine,hes looking @ 550rwhp at the most.Thinking of twin mp t70,th-350 gear vendors od ,12bolt 3.23 ratio. All of this in a first gen.
He has the stock computer & harness,looking at the simplest set up for simple minds ,this is my first attempt @ fi..
What twin set-up would best fit his needs? 550hp now but i know him that will eventually doubble ,so a detuned set up Please
thanks Mike

 

It should be do-able, there are a few guys around here with STOCK ls1 f-bodys with STS kits making about 470-500rwhp on 9psi.

Jay

 

THanks 400 rwhp is enough to scare my buddy for a while,then he will biuld a better btm end.
Almost forgot to mention it will hace a2a intercooler & ais meth kit as well,this will be a test & tune type car
Mike

 

please keep us posted on this build,, I would like to build something like this also?

 

twin MP T70's are way overkill for those goals. You can and should go much smaller

 

Yeah each MP t70 supports over your goal.

Twin 60's or 67's would be better suited.

 

Well you said knowing him, he will probably double the output so twin MP-70's arent that bad of an idea. The only thing I'd be concerned about is compressor surge as he's going to have to operate them at/near the surge limits of those turbos to keep power output down so the stock LS1 can live.

 

This is going to be the learning motor, got to get him somme driving skills as well
As far as packaging goes would the 67s offer mutch more room?
Thanks again everyone
Mike

 

depending on the motor build itself, there are many smaller 60mm type units delivering massive power. Now I'm not sure how believable this is, but on planetlsx.com, there is a twin turbo 383 LS6 with twin 54mm units making 9xx whp. I didnt think a 54mm unit would support that much

 

Twin t3/t4 with 60-1 compressors and .84 ar ratio should be awesome on that engine.

http://www.dynamicturbo.com/products/master-power-turbo.html
6th on the list . Try to buy from site sponsors tho.

 

Thanks for the info,gonna let him decide this week ,then start ordering turbs, , from there its elbows deep
cya Mike

 

Hi everyone
Still listening for info,
what intake would support further mods (6.0) in the future,
thanks Mike

 

Some are better than others but lots of HP still made with FI and stock intake.
The 90mm TB seems to be the main advantage that some of the intakes.
The BBK seems to be the best bank for the buck for FI.
http://www.hardcorels1.com/vbulletin/showthread.php?goto=newpost&t=3681

RPM is the main difference if going single plane. They will make more power above about 6200 where the stock long runner intakes peak even with the bigger cams.

I'm planning on a 6.0 with L92 heads and a stock intake with a custom cam and twin 61mm's.
Will make 1k hp according to all the internet posts...
I'll cnc the heads if I have the extra $1k. I had a 69 Cam that it was going in until I lost my garage space due to a relocation to socal. Not changing the motor plans....just what it's going in.

 

I see where this is gonna end. The HP bug has stung you and your friend.

Same link as before only now you take the 4th turbo from the bottom up. V band DP and a bit bigger bus still spooly

 

I allredy have that bug 582bbc F2 by morris,he¨(my friend) got a ride in it and has no desire to buy underwear so frequently

 

twin turbo 6.0 GTO here as my daily driver with well over the hp amount u are thinking of so yeah its more than possible

 

Remote mounted or under the hood?

 

under hood, just tucked low