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Actually, it looks like standard knock retard to me, not a gain. That's not necessarily a tune problem, could have been false knock for whatever reason.
Check out mikemorrismotorsports.com. He has extensive experience porting throttle bodies and working with air flow experts. He reports
4- 5 RWHP gained for his porting. He seems to be in line with most other realistic claims that I have observed.
Check out mikemorrismotorsports.com. He has extensive experience porting throttle bodies and working with air flow experts. He reports
4- 5 RWHP gained for his porting. He seems to be in line with most other realistic claims that I have observed.
That’s about what I got in addition to improved throttle response & a very slight increase in mpg
Mike's exchange program through VMax FTW
Last edited by ///DarkSide\\\; Jan 27, 2009 at 06:47 PM.
Maybe IPS can chime in and tell us why his stock dyno graph is so weird. They have been involved in some great builds and this should be a piece of cake for them. Both the hp and tq curves are crazy. His peak gain is fine. It is the midrange gains that cannot be normalized.