What spur gear/clutch bell to upgrade to?
12-30-2003, 12:21 PM
#1
Senior Member
Thread Starter
Join Date: Dec 2002
Location: Calabasas, CA
Posts: 142
Likes: 0
Received 0 Likes
on
0 Posts
What spur gear/clutch bell to upgrade to?
I've got the 21BB with HB tuned pipe, Motorsaver filter.
Whats a good spur gear and/or clutch bell size combo to get some more speed out of the truck?
It currently has extended TVPs and HB UFO wheels, which I think are too big for the .21.
I'm planning on upgrading in about 2 months to the .25BB or a Ofna .21 motor. Something that would work for the 21bb and later for the 25 would be great.
Thanks
Whats a good spur gear and/or clutch bell size combo to get some more speed out of the truck?
It currently has extended TVPs and HB UFO wheels, which I think are too big for the .21.
I'm planning on upgrading in about 2 months to the .25BB or a Ofna .21 motor. Something that would work for the 21bb and later for the 25 would be great.
Thanks
12-30-2003, 01:38 PM
#2
Senior Member
Join Date: Nov 2003
Location: Madison, AL
Posts: 198
Likes: 0
Received 0 Likes
on
0 Posts
RE: What spur gear/clutch bell to upgrade to?
If you want it to be faster top end wise then just change the clutch bell/spur combo so that the ratio is lower.... meaning a 52T spur and a 18T CB would give you a ratio of 2.89.. that is more top speed than say changing to a 49T spur and a 15T CB.. which would be 3.27 ratio. It is just the like the gears in a cars rear end.. the lower the number the more top speed.. the higher the number the more low end torque.
Hope that helps some.
Hope that helps some.
