2004 Stock Rxp 7700-7800rpms Max

[JBasco20]

i have a 2004 RXP with 68 Hours and its bone stock but i only get 7700-7750 and somtimes 7800 unless im in a turn or something then it will hit into the 8k range it has the stock supercharger clutches but i baby it in jumps and all i dont hold it wide open until i can send it in to get it rebuilt. any idea's why im not turning any faster than that rpm??
Thanks
Josh

[SeanCucf]

I know I posted on the other site....but here's another?

did it ever turn 8100?

[JBasco20]

bot it used it has never turned above 7900 and that was on a pretty cool day.

[SeanCucf]

ok....so you touched 7900 on a cold day. I'm assuming you're aroudn 7850 normally then. That would lead me to beleive your just suffering from heat fade. the heat/humidity of summer will suck some RPM's. pitching the prop, or easier, would be to throw in a 4" intake and get those RPM's back up. Mine never saw 8100 when it was stock either, but didn't stay that way long, so I never tried to tweak it. But once I did an intake, prop, and grate it woke right up.


oh.....get rid of the ceramic washers......WELCOME to the forum

[GTGRXP]

I never saw 8100 until I added the intake as well.. before then I was consistantly seeing the 7900's. So add that intake and you and your SC will be happy...

Not to repeat it again.. but yeah, get those washers changed out.