Originally Posted by LSM3
So I stuffed a LS1 with a Turbonetics 7868 turbo in my E30 M3. Im shooting for 10psi MAX and 500/600hp. The problem is that I am limited in space for an intercooler due to the fact that I am not modifying the chassis/bumpers at all. The biggest "off the shelf" unit I have found that will fit has a core of 18"x11"x3" with 2.5" pipes and is "rated" at 600cfm. Im thinking that the core is too small but my question is is an undersized intercooler better than no intercooler?
Sounds like a fairly big turbo for only 600hp ?
Charge temps shouldnt be too bad due to the big turbo and relatively low boost, so the only real downside is if the core is a cheap piece of **** that doesnt actually flow any air
So make sure you use something like a Garret core, or one of the vertical flow units as already suggested and you wont have any restrictions worth worrying about.