hi im in middle of building 500+hp cossie engine but cant decide on what turbo to go for ... or which ones going to be the best option in the long runfor reliability and performance

some of the parts so far -

4x4 engine with ported head, double valve springs and bd15's.
low comp .5 oversize pistons with valve cut outs and standard rods.
ill be useing omex 710 management as well.

im hearing so much talk about the gtx and the BW i just dont no ...
im hoping some of you guys would be able to help out with some advise
this is going in my 2 wd sapph and will be used as my 2nd car ( for road and maybe some track days , santa pod etc).

cheers

 

We are going to use a gtx3071 which will do 500 bhp

 

your best off talking to mark sheed hes the man with more modern turbo options!

 

I was going to say sheady too

 

If you want to go for more power later on you should get the 35 gtx! It will spool up just as fast as a 30gtx with same exhaust housing, the a/r 71 or maybe use a smaller house... Depends on how you want your car to run. Road use? track? gravel? etc.... Both sizes 30 and 35 can be very equal depending on the exhaust housing. I would have chosen the 35 with a smaller exhaust housing