Finally got my dyno results. Not bad I guess, except for the screwey fuel mixture, but not all that I had hoped for.
The really horrible "off the chart rich, then dangerous lean" line is the initial run (142.5 mains, factory pro needles on center notch) I had moved the needles up just before dropping it off. I should have left them alone. The better one is after they tuned it - 127.5 mains(if I heard/remember right, maybe 137), needles lowered/shimmed & stiffer springs on the slides.
The current setup also includes D&D 3 into 3's, 955 sprint cams, and K&N in the factory airbox with almost the entire back hacked out of it. My rev limiter is also apparently at 8800 rpm (I told them to hit it :-D ).
Any guesses as to why I'm going lean at high RPMs? Seems odd that it's in a safer range after they put smaller jets in it.
Are the stiffer springs killing my throttle response (feels like it). I've cleaned the paint chips out of the tank. Could the factory filter not be flowing enough fuel? Could this result from me botching the valve clearances (first time I've done it). When I run it full throttle from a stop, it seems to die (like it's fuel starved) when it hits around 8k.
Hoping to get some advice. I think my next move is the Thunderbike exhaust. Maybe the added backpressure will keep it from going lean and shift some of the torque back to the lower rpms anyway (at least that's my dream result).
[ This message was edited by: BadMouth on 2007-04-15 12:13 ]
