2011 GT500 Pulley & Tune upgrade 545RWHP/534RWTQ
Posted 20 September 2010 - 08:44 AM
We swapped the pulley on later in the afternoon when it was getting warmer, we saw a 3-4psi increase throughout the curve and a peak TQ gain of 42RWTQ and a peak HP gain of 25RWHP. Had the conditions not gotten worse the peak HP gain would have been better. You can also see that the car is now starving for air up top, with a peak HP gain from the pulley swap of around 30-40RWHP in the 5000RPM range, it tappers off up top due to the need for a larger throttle body. We would get 10-20RWHP from a TB swap on this car.
Overall we saw a 61RWHP and 70RWTQ gain from a pulley swap and custom tune. I sell this 2010-2011 upgrade package on my website:
Stock look 2.59" pulley:
Larger 90mm replacement idler installed below IC tubes to take up slack and improve wrap.
The 2010-2011 fusebox has the IC relay and fuse built in, the rear most little relay is for the IC pump, you can install a jumper wire diagonal in it to run the IC pump while the car is on the dyno:
Since you are only making quick WOT hits on the dyno, the IC system really never has a chance to fully circulate and cool. Also since the car is not moving the only airflow is provided by a fan. Jumping the IC pump and sitting a fan in the front of the car helps to keep temps stabil and prevents major heat soak from run to run.
2007 Shelby GT500 Red/Silver
Highest HP with 2.3L TVS816RWHP/779RWTQ
Mods: VMP 2.3L TVS Supercharger, VMP Dyno-Tune, VMP 2.5" Upper, VMP 72MM TB & Elbow, 123MM MAF, IW 10% OD balancer, 80s, Dynatech 1 7/8" LTs, Comp Stage 2 cams.
New VMP 2.3L TVS Supercharger $3,499
07-12 GT500 Custom Tuning starting at $199
2011 Mustang GT 5.0L with Roushcharger 9.79@140, wife's car
2006 Mustang 4.0L with Vortech @ 15psi & 6spd, wife's car
2006 Jeep GC SRT8 6.1L AWD, wife's truck
2006 F250 6.0L PSD 4WD CC
2000 Mustang Twin Turbo
Posted 20 September 2010 - 04:38 PM
2004 mustang mach 1 Sons car, has 500hp Pro charged, built engine.[White]
2007 Ford GT500, White/blue stripes.
Moser M9 9 inch rear with coilover shocks. All custom built LCA's, UCA, Panhard bar. 3.89 gears DTT. Auto turbo 400 trans is next. Complete custom Leather interior. Lots of billet, complete custom stereo system.
Very proud of our son. Serving in the Navy. On The USS Hampton fast attack sub.
Posted 20 September 2010 - 06:42 PM
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