Originally Posted by
KSimmonds
Yeah, the slipper was actually too tight for my taste. The factory sends out the pre-built slipper center with several shims behind the slipper nut so you can't loosen it a whole lot. I removed some of them yesterday so I can obtain the setting I like.
The 7.5 was an older (2-3 years old) motor and I'm having some cogging issues at very slow speeds with it, too. Hopefully it's just worn out and the new SP 6.5 will bring things to life and stop that issue as well.
Let us know what happens with the new motor.
Cogging could be the sensor wire or the sensor board in the motor. The gt series will run most motors sensorless with no problems if the wire pops off or something. You just lose the boost and turbo timing. with a 7.5 i have had races where the sensor wire popped off or broke and i hardly noticed. Actually, with no boost it probably helped more than hurt.
