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copbait73 copbait73 is offline
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Join Date: Nov 2003
Location: Chesterfield IN
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Originally Posted by RarlyL8 View Post
With enough patients and the right components you can get a CIS engine to produce boost at 1800rpm with 1.0bar all in by 2600rpm. That translates to unpreceptible lag and instant throttle response at 2000rpm. I don't know what twins can do for you that is better than that but I do plan to find out. Triples? I can't imagine that would be of any significant advantage worth the plumbing nightmare.
Brian, I know where you are going here by stating your goals in Turbo Porsche Owner speak but in reality you're after an exhaust back pressure reduction in the lower RPM range. Monitoring exhaust pressure on the turbo will get you there sooner. Without this reduction you will only change the bias toward the bottom end netting a choked off power curve.
I didn't include CIS in this discussion. An engine targeted at 600HP fed by triples would by necessity need to drop Porsche's CIS system.

Last edited by copbait73; 01-17-2008 at 12:27 PM..
Old 01-17-2008, 08:48 AM
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