RB35? Thats odd, I always thought the RB line of motors was designed to have displacements smaller than other 6-cylinder cars so that it would excel in certain classes of racing. Wouldnt a 3.5L motor defeat the purpose of the RB design?
About the comparison between V6s and inline-6s, lets not forget that it's much more difficult for the aftermarket to turbocharge V designs because there are 2 separate exhaust manifolds; you would always need to have 2 whistlers (of course you could have 1 plus a whole mess of plumbing, but generally that setup is inefficient for both boost and space). When it comes down to flat-out horsepower, 1 large turbo will always do a better job than 2 smaller ones, even though driveability is sacrificed...so I suppose the best engine choice would depend on ones needs.
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