Chuck, I don't think there's a need for it, my motor is mounted solid just as 
in the bike.  The motors are pretty smooth, much, much, much smoother than the 
2 strokes.
   
  CR

Chuck Voboril <[EMAIL PROTECTED]> wrote:
  Adding rubber to the drivetrain only helps a little with respect to 
upsetting the chassis. Think of having a lot of belt clearance on your F500 
with the clutch slaming in 5 or 6 times as you increase speed.

There is usually very little damping in drivetrain rubber, so it can also 
oscillate and get jerky like an Elan.

The main benefit of rubber mounting is so that you do not fatique the welds 
in your chassis from vibration or have the tach needle fall off.

It is also not clear that anyone would use rubber to mount a MC engine. I 
haven't seen much rubber in the conversions, but there could be.





Chuck





>From: [EMAIL PROTECTED]
>Reply-To: [EMAIL PROTECTED]
>To: [EMAIL PROTECTED]
>Subject: [F500] Chuck and Jay: Dampening a MC motor in F500 Chassis
>Date: Sat, 14 Apr 2007 11:42:10 EDT
>
>Chuck and Jay,
>
>Chuck earlier stated:
>The manual tranny will be worse as one shifts and upsets the minimally
>damped chassis.
>
>If I remember correctly, most MC motors have rubber dampeners on their
>mounting points to the MC chassis. I am hoping that these will be re-used 
>in
>mounting the MC motors in F500 chassis. Hopefully, since the MC chain 
>drive can
>tolerate deflections, the rubber dampening will help in the shifting 
>shocks
>to the chassis and help with the general vibration of the MC motor 
>(chassis
>tubing cracks).
>In a related side note, I know that Jeff Blumenthal uses rubber dampening 
>in
>mounting his Rotax and I have been told over the years that rubber 
>dampening
>of CVT motors is not a good idea because it misaligns the two clutches 
>when
>the motor torques over. Yet, when I look at parts explosions of 
>snowmobile
>sleds, I usually see rubber dampeners in the motor mounts, so which way is 
>the
>best the best way?
>
>Curious,
>
>Jim
>
>
>
>
>************************************** See what's free at 
>http://www.aol.com.
>________________________________
>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


       
---------------------------------
Ahhh...imagining that irresistible "new car" smell?
 Check outnew cars at Yahoo! Autos.
________________________________
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! ***

Reply via email to