' date='Dec 4 2005, 08:53 PM' post='623065']
You issue is going to be fitment, not design. There is a million page thread on H-T with turbo people showing their manifolds/radiators/crossmembers. The gleaned version:
C&R half radiators are only 16" tall, will fit with most reasonable manifolds. This is probably your only choice if you are going with an equal length "ramhorn" style manifold.
Fluidine half radiators and PWR/Full-Race half radiators are 18" tall and are too tall to fit without cutting the webbing of your hood and adding a little gangsta lean. This lean will make it difficult for you to fit most manifolds. Anything larger than the peakboost manifolds will probably give you fits.
Del Sol half radiators may be useable, depending on the crossmember you are running. Working with a CRX engine bay isn't going to be fun.
Point is - You need a Radiator/Fan and you need a crossmember. You don't need a bah-lingin' equal length manifold to make sweet power. While you're mani-shopping, think fitment. I'd hate to see a "What can I cut up to get XXX manifold to fit?" thread from you a few months down the road.