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AI#97
05-11-2009, 11:01 PM
Anyone know if they run 3.55's or 3.73's?

Waco Racer
05-12-2009, 08:00 AM
3.73

http://www.fordracingparts.com/Mustang/PDF/FR500S_HeroCard.pdf

Todd Covini
05-12-2009, 08:37 AM
Mustang Challenge Rules as updated yesterday:
http://www.mustangchallenge.com/downloads/2009MustangChallengeRules5.11_.09_.pdf

Mustang Challenge rule II.J. REAR AXLE

II.J.1 The rear axle must be used as supplied without any modifications except those necessary to
achieve compliance with II.J.2. Teams may perform any needed maintenance on the rear axle. The final
drive ratio will be checked periodically through the on-board data and/or through visual inspection.

II.J.2 The total negative rear axle camber (value of camber at the left rear wheel + value of camber at
the right rear wheel) shall not exceed 0.4 degrees. Individual rear wheel negative camber shall not
exceed 0.3 degrees. Teams are responsible to ensure that this tolerance is met regardless of the asdelivered
camber values.

II.J.3 The supplied final drive ratio is 3.73:1

AI#97
05-12-2009, 05:01 PM
Gracias. Was watching some vids from MMP and saw 2nd gear several times with a LOT of 3rd gear turns... Very reminiscent of TWS CW.....

Todd Covini
05-12-2009, 09:06 PM
Gracias. Was watching some vids from MMP and saw 2nd gear several times with a LOT of 3rd gear turns... Very reminiscent of TWS CW.....

Smart man....see you at Nats!!!! :lol: