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I was using a boost activated retard on my test Buell, until I got the water injection sorted out,....now I find the need to tune all over again with less retard giving more overall performance. Will let everyone know how it ultimately turns out. I need to verify max advance at different boost setting before conclusions,...and this cold weather makes it tough. I think what boost, static compression, fuel, and chamber design have a LOT to do with it. The big twin is certainly more prone to detonate than more modern engines,...so I don't know how relevant my results are. Jeff Churchill J.C. Performance 617-06 Bicycle Path Pt Jeff Sta NY 11776 USA techline: 631-928-9863 Fax: 631 928-6679 website: www.jcperformance.com ************************************************************************* **** On Tue, 28 Dec 1999 11:50:33 -0600 "Tim Meenan" <tmeenan@flash.net> writes: > Rick or any of the street bike guys. Do you run timing retards on > your > turbo? IF so what degree of retard and at what RPM does it retard > at? How > much boost do you run? > > Thanks, Tim >