my 5sfte 200+whp dyno runs, 203whp 246ftlbs! Options

[presure2]

ok guys, went back to the dyno with the 460cc injectors, and did some runs to see what was up....first couple runs were about the same as before, about 195 or so whp and a little over 210ftlbs...but now it was NICE AND RICH, which i was VERY happy about.
so, i removed a little fuel up top (between 4600-6k) and upped the boost a little bit, to 12lbs.
she responded by giving me these runs.



after looking at the runs some, you can really see how the power drops off right @ 4450rpm.
i think this MAY be one of two things.
the SAFCII screwing with my timing, and the ECU making it pull timing to fight back,
or just plain ole detonation.
now, i havent noticed anything strange as far as readings on the SAFCII, and i havent actually "heard" anything strange, yet. then again, they do say by the time you hear it, its usually to late..lol
so, im planning on going back, and trying a few things to see what i can do about the power dropoff.
even with it, the car pulls HARD, and by the looks of the egts things are actually safer with the bigger injectors.
i really think that if i can figure out the issue i have there above 4400rpm, i should be making about 225whp to go with the 240+ftlbs...
any thoughts???
lets hear em!

This post has been edited by presure2: Sep 20, 2005 - 8:44 AM

[presure2]

yea, im thinking about throwing in some 109octane (its 7$ a gal.) next time @ the dyno if i cant clean that up at all by playing with things, and seeing if that cleans it up.
i figure ill head over to the dyno with about 1/4 tank, and if i have to, add like 4 gallons of the 109oct. for about a 50/50 mix...hehe
first thing i think im gonna do is add in the fuel that i took out at the dyno, and see what kinda diffrence it makes, the runs before i started taking fuel out look a little smoother, albeit a little bit down on power compared to these two runs, but then again, i hadent upped the boost yet.
as far as knock detection, the only thing im using is the knock display on the SAFCII, i installed it before i turboed so that i could get an idea of the readings pre-turbo, and to be honest, i really havent noticed much of a diffrence at all in the knock readings.
keep the ideas coming guys, i wanna hear em all!