Neal, My original post on this subject wasn't totally correct. I have corrected that information in a later post to state that only in Solo, you can either remove the balance tube and plug it or leave it in place as delivered (without alteration), your choice. But, in racing the balance tube must be removed and plugged.
The balance tube was only put on the Rotax 493s for snowmobile drivability issues just off idle. Once the throttle is cracked open toward and at WOT, the balance tube has absolutely no affect on the performance of the engine. Why the CRB required the tube be removed is an open question. Perhaps they did not have all the information or perhaps they felt that someone would be playing around if the tube was left in place. I don't know, but in Solo, we felt it had no performance value at all and could be checked rather easily for alteration(s). Sorry for any confusion my first post might have had. As far as the pull starter is concerned, the CRB has put forth wording for 2007 that would allow that device to be removed or left in place, again your choice. If the BOD approves that recommendation at their meeting this week which may still be ongoing as I type, you'll get your wish. Art -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Saturday, August 26, 2006 8:10 PM To: [email protected] Subject: Re: [F500] Rotax 493 installation Art, Is this correct? Myself, (and a couple others in the Southeast) with 493s had to remove and plug the balance pipe holes for roadracing. I would love to put mine back on, and also remove the pullstarter, but I'm still not sure of the correct ruling on these two items. Some concrete wording in fastrack would be great! Neal ________________________________ 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! ***
