I have 27.9" tires, and cross the line ~4500 as well (I never look, stuipid
me)
My Peak HP was ~4900RPM's and peak TQ was ~4100 RPM's with 300ft/lbs+ from
the start of the dyno at 3000RPM's to ~5000
I'll be installing the MPI M1 when I get my truck back from AAMCO for
loosing the weight on the torque converter...
I had the same problems with mine not shifting outta first, and they found
the clutches, discs, and bands were burned up... (If I get a camera, I'll
get a good pic of a few of the discs they gave me) My bands were starting
to crack as well... (59K miles)
I should have my truck back no later than tuesday... I'd like to hope for
Monday tho :)
What do you think the M1 will do with me being SC'd? How do you feel my
powerband will change?
lemme know....
Thanks,
Tim Berry
> When I put in the MPI, I was going through the traps at 4500 rpm on
> 26" drag radials and 3.55 gears. I felt that there was still more at the
traps
> so I had it dynoed again and, sure enough, my peak hp was at 5000 rpm
> with only a 6 hp dropoff at 5500 rpm ... had more power but no track left.
> I had the 3.92 gears put in and am now going through the traps at
> the 5000 rpm mark.
>
> Now, all I have to do is solve the manual upshift problems at WOT so I can
> shift at 5500 rpms instead of about 4800 for the 1-2 shift and about 5000
> at the 2-3 shift ... even at these lower shift points, I often have to
lift
> a bit
> on the pedal to get the upshift. My strengthened valvetrain lets me run
> safely at 6000 rpm. I think that the problem is either the
> governor pressure sensor or the governor pressure solenoid or both.
> I'm replacing both and will see if the problem is fixed on opening day at
> the track.
>
> Bob
>
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 11:59:13 EDT