Which engine? Subaru 2.5 STI/Subaru 3.0/Honda j35/ Honda k24, Building a weekend/track car, help me pick the engine Options

[rupert14]

I am trying to decide which engine to swap into my 914. In the past I put a honda J35 in a baja bug and it would roast 33" tires all day long. It was a great engine for a baja bug. I have a local shop that is pushing me toward a subaru 2.5L STI turbo motor. I have also read about very happy owners of 3.0 flat six suby engines in the 914. A buddy of mine that runs NASA has a k24 in his car that puts almost 250hp to the ground with just cams. The good part about the k24 is that it is light.

I plan to just use it as a fun weekend car and once a month or so on track here in AZ for HPDE4. I am currently running a 2001 BMW 330ci at the track but I also have a speck e30 and a few street e30's. I want to be around 300hp (stock J35 is 300hp/300tq) and I am ok swapping the trans if necessary. My trans was recently gone through at a Mr. Evil gathering and is a strong side shift.

I realize many of you have more experience than me with these engines so what is your vote? I will be adding a wide body and the fattest tires I can stuff in there.

1. Subaru 2.5 turbo STI motor
2. Subaru EZ30R 3.0 six
3. Honda j35 V6
4. Honda k24 inline 4

[emerygt350]

for the money spent I wonder how close a pmb/raby crate motor might get (or even your own build)? Even if you got only 150 hp out of the crate motor, if it means 300 lbs of weight savings it might be a wash. If prices are close, it might be worth looking at the hp per lb for each. low and light with good power might be a better track car than a possibly higher center, more weight with high HP.