PDA

View Full Version : Input on my dyno number!


Brad
06-18-2003, 02:27 PM
I made a few pulls last Saturday, ill post the sheet later, but here is what happened. At 5000RPM I made my max power of 460RWHP and 510 pound feet of torque. On that pull all I was doing was watching the boost gauge, at about 4800 RPM I went from 15 pounds of boost to about 10. Clearly there is some belt slip! Is that why I made my max power at 5000RPM? My power line climbs right to 5000 then just plains out then falls into the low 400’s at 6500, at that point the line gets real choppy.

Power Mods
2.80
steeda CAI
magnaflow cat back
magnaflow X
Diablo delta

I think I might need plugs, and I think I need to install a metco idler, do you guys think that will make the difference? Assuming I can make the boost stick to redline what do you think my power will be??

The good news is at WOT my A/F looks like this right to 6500

12.5 -------------------------------------------------------------

Redsnk95
06-18-2003, 09:08 PM
Yea the belt slip is costing you the power past 5000rpms. I would try the Metco idlers, my buddy has them and they create about 75-80% belt wrap around the pulley....although with that 2.80 upper it is tough to get around belt slippage with that small of a pulley.

Troy

txgti
06-19-2003, 07:03 AM
Ditto Troy.

Mofo's quick on the draw today,a nd spot on with advice. ;)