ghott
12-10-2006, 06:45 PM
Finally made it back to the dyno...
Thanks to another good deal from Brian @ WPP Racing....If it weren't for him, I wouldn't have been able to get back on the dyno. I'm glad he's lookin out for me :).
We didn't find much more power in a rejet. BUT it was amazing how much bottom end I was leaving on the table with my old clutch.
Brian did the very first A/F pull with the 190 main (old jetting), and then stopped to show me the difference between the runs last time (slipping clutch), and the current run, with the same jetting and everything, and it was pretty cool. The difference from 5,000-7500 RPM's was amazing.
Check out the difference in torque! Sweet.
So here goes some specs:
05' TRX450R
- 13.1:1 Wiseco (94mm stock bore)
- Hot Cams Stage 2
- Ferrea Intake Valves (stock size)
- Sparks Filter
- DASA Pipe
- Airbox Lid OFF
RMATV HD Tusk Clutch Kit w/ CR500R Springs
Stock crank, carb, springs, exhaust valves....etc etc etc....
Sunoco/CAM2 Purple 110 (R+M/2) Fuel
American Racer Dyno Slick Tires
14/38 Gearing
Pulls done in 4th Gear
Dynojet type DYNO @ WPP Racing (http://www.wppracing.com)
Previous jetting:
190 main
50 pilot
HRC Needle 3rd Clip
Current jetting:
182 main
50 pilot
HRC Needle 3rd Clip
Best HP Last time: 47.65
Best TQ Last time: 32.32
Best HP This time: 47.67
Best TQ This time: 33.43
The HP stayed pretty consistent...as far as PEAK. And It looks like I picked up a little bit over 1 ft/lb tq on peak. I think the new curves look better overall.
Now for the graphs....
Thanks to another good deal from Brian @ WPP Racing....If it weren't for him, I wouldn't have been able to get back on the dyno. I'm glad he's lookin out for me :).
We didn't find much more power in a rejet. BUT it was amazing how much bottom end I was leaving on the table with my old clutch.
Brian did the very first A/F pull with the 190 main (old jetting), and then stopped to show me the difference between the runs last time (slipping clutch), and the current run, with the same jetting and everything, and it was pretty cool. The difference from 5,000-7500 RPM's was amazing.
Check out the difference in torque! Sweet.
So here goes some specs:
05' TRX450R
- 13.1:1 Wiseco (94mm stock bore)
- Hot Cams Stage 2
- Ferrea Intake Valves (stock size)
- Sparks Filter
- DASA Pipe
- Airbox Lid OFF
RMATV HD Tusk Clutch Kit w/ CR500R Springs
Stock crank, carb, springs, exhaust valves....etc etc etc....
Sunoco/CAM2 Purple 110 (R+M/2) Fuel
American Racer Dyno Slick Tires
14/38 Gearing
Pulls done in 4th Gear
Dynojet type DYNO @ WPP Racing (http://www.wppracing.com)
Previous jetting:
190 main
50 pilot
HRC Needle 3rd Clip
Current jetting:
182 main
50 pilot
HRC Needle 3rd Clip
Best HP Last time: 47.65
Best TQ Last time: 32.32
Best HP This time: 47.67
Best TQ This time: 33.43
The HP stayed pretty consistent...as far as PEAK. And It looks like I picked up a little bit over 1 ft/lb tq on peak. I think the new curves look better overall.
Now for the graphs....