toykilla

Yes and no. With lower compression you will beable to run more boost but with high compression you wont need to run more boost. Here's an option that some choose. They raise there compression to, say 12:1 and keep boost at around 8psi. That way they only have to pay for the rebuild. Not for the fuel management. Say someone else lowers compression to 8.5:1. Inorder to run more boost, they will still have to upgrade fuel system more than what the turbo comes with in the kit. With the high compression and 8psi, you will get just as much power as running the lower compression with 15-20psi at a cheaper price. The only downfall to the higher compression, is youd never beable to run enough boost to keep up with the people that have low compression and really upgraded fuel system. They both have advantages and disadvantages. Its all about what you plan on doing with your car. If your not trying to run 10's, but still want the turbo. Id rebuild to high compression. That way you dont have to spend extra money on a boost controller or for injecters/ignition/standalone fuel management. (SAVE A LOT). If you want to be running 10's, spend the money and do it right, low compression/fuel management/ignition. I plan on running 30psi and 100-shot direct port by summer's end, so of course, im going with low compression and fuel management system. I highly doubt you'd beable to run a turbo and NOS with a rebuild to higher than stock compression either. The highest ive heard on a stock eclipse (shot wise) is 75shot. If you have stock bottom end and turbo, youd blow your engine with the shot+turbo. Just a little bit of information for the interested that want to be 12's but think they need to do engine swap or lower compression+turbo.