RPM shift Point ??

**firemedic0135** · 06-16-2007, 05:29 PM

Had my car tuned with HPTuners at a local shop and the tuner set my shift point at 6400 at WOT and then drops as the trottle angle drops.
Seems to loose a little power now going from 2-3rd now like it is getting to far away from the power band.1-2 is right on and throws a TCS light when it shifts.
Car is mainly stock and if your wondering why I tuned it, its because I was throwing 420 codes and the egr was shot,plus free tunes from here on out when I make a new mod.(300 bucks in case your wondering that also)

**mrr23** · 06-16-2007, 06:17 PM

on a stock cam, 6400 is a bit high. 6200 is the max i would set it to.

**firemedic0135** · 06-16-2007, 06:37 PM

Thanks ..I thought it sounded a bit strung out.
I will get it pulled back down a bit later in the week.

**Y2KPewterSS** · 06-19-2007, 04:43 PM

$300 with free edits in the future is a good deal.

**Firebirdjones** · 06-20-2007, 11:06 AM

I agree with mrr23,,,I found mine ran best at the track when I adjusted the shift points to around 6,000-6,100 rpms,,,even at 6,100 I can feel the car slightly nose over right before it shifts, but on the 1-2 shift it still helps because the rpm drop on the 1-2 shift (4L60E) quite frankly sucks, and the motor struggles to get rpms back up. So I have the 1-2 shift slightly higher than the 2-3 shift. Mine is an 02 model with the very smallish truck cam, so it especially doesn't like too much rpms.

If you have HPtuner, play with it at the track like I did, it's neat to find little things to widdle away at the ET.