First question - What is the distance between your Jackshaft and Final Drive gear. On my 86 Red Devil, in it's original configuration the drive and driven belt gears were almost as close together as was physically possible. With this near mounting of the gears, the belt had no more than 3 or 4 teeth of engagement on the drive gear...in racing this was no problem, unless I spun and then tried to stand on the throttle while still rolling backwards. For 2 seconds it sounded like a Ferrari at full song, as the teeth were ripped off the belt. The same Ferrari sound would occur at an Auto-X, for the same reason....trying to pass too much power through too few teeth of engagement.
Once the car was converted to a trailing arm, 4 link rear suspension and the drive gear and the driven gear were separated by about 22 inches (which required a longer belt, just slightly less than 1/2 of the drive gear was captured by the belt and thus had 15/18 teeth of engagement and I never had another drive belt problem under any circumstance. Your mileage may vary Chuck McAbee SEDIV #16 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Christopher Eveland Sent: Monday, April 02, 2007 10:42 AM To: [email protected] Subject: [F500] Autox and belts Hi all- I took the Red Devil to its first autox yesterday, and ran into a little snag: I broke the drive belt (is that what we call the one that isn't part of the CVT?) on my second run. It broke somewhere near the start... I'd guess on a rational level that it broke on the launch, but I swear I had power for at least the 1st 20 feet, and I did get up enough speed to coast well off the course. Anyway, I have a spare belt, so I can replace that, but I'm wondering if there is any autox specific trick that should be employed to keep this from happening again. Different tension? Driver adjustments? Thanks for the tips, -Chris ________________________________ FormulaCar Magazine - A Proud Supporter of Formula 500 The Official Publication of Junior Formula Car Racing Subscribe Today! www.formulacarmag.com or 519-624-2003 _________________________________ _______________________________________________ F500 mailing list - [email protected] To unsubscribe or change options please visit: http://f500.org/mailman/listinfo/f500 *** Please, DO NOT send unsubscribe requests to the mailing list! ***
