Quote:
Originally Posted by Halon
I personally would go with 8.5 because I feel it will only assist in making tuning simpler, and well if you want more power, just add more boost!
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But running a 16G means you can't really run much boost on top end; 30 at most even with all the tweaks and 'tricks'. I would go 9:1 if you want to save a little money, otherwise 10:1 custom pistons. He's going to run E85, so it can handle it fine.
I do agree on running the 2G head.
I think the BC272 cams are the perfect match for a 16G, no big loss of off-boost power, same spool as stock cams, more power and torque everywhere. They seem to make the most of the 16G, bigger cams will just trade off torque and spool for maybe a few more unnoticed hp. It doesn't pay to lose a bunch of torque with a turbo that's basically known for torque and mid range power. The torque hit is what makes the 16G so fun; I regret getting bigger cams for my car.
Save the extra expense and parts of an external gate and just get a higher pressure WGA, such as a Holset one, so you can hold a few more PSI on the top end. Ebay downpipe and exhaust, or just no exhaust at all
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