50 vs 70

[kfx450]

What does it take to make a drr50 run with a stock 70. We are running a 50 class for hs but may also run bump up a class and run in a jr 90 class. I have the basics but was wondering if or how much it will take. I know alot of people are building the production 50's this year but didn't know if anyone would let out any secrets.

We have a stage 6 cylinder with a 90 pipe and the recomended clutching, 21mm keihn carb from hetrick.

Also does anyone have a dyno run of this setup just so we can verify rpm range with our tack for the clutching.

thank you
jayme

[zach R 7x]

Jayme, call down to Snyders and talk to shawn, he has been working on the 50 motors and he has been getting 10 horse out of them. your not that far from him he will gladly help you out.
Tim

[#404's Dad]

Originally posted by zach R 7x
Jayme, call down to Snyders and talk to shawn, he has been working on the 50 motors and he has been getting 10 horse out of them. your not that far from him he will gladly help you out.
Tim

That would be a pretty decent running 50.