Gearing help

PRS 26

New member
We are running a 715# Super Cup car on asphalt with 35 chain. Our final drive needs to be in the 3.33 range. Is there an advantage to a small or large driver?
16/54=3.37
17/57=3.35
18/60=3.33
19/63=3.31
Thank You
 
We've won lots of races on both asphalt and dirt and I'll take the 19-63. We're always faster with the bigger driver. There will be people on here that disagree with me and that's fine.
 
We are running a 715# Super Cup car on asphalt with 35 chain. Our final drive needs to be in the 3.33 range. Is there an advantage to a small or large driver?
16/54=3.37
17/57=3.35
18/60=3.33
19/63=3.31
Thank You

Where are ya AL, Here's a question you should know something about and NO comment.
 
We are running a 715# Super Cup car on asphalt with 35 chain. Our final drive needs to be in the 3.33 range. Is there an advantage to a small or large driver?
16/54=3.37
17/57=3.35
18/60=3.33
19/63=3.31
Thank You
I'm not sure exactly what you mean by 3.33 range.
these numbers are from my spreadsheet which always rounds up to 2 decimal places.
16 - 54 = 3.38 16 - 53 = 3.31
17 - 57 = 3.35 17 - 58 = 3.41
18 - 61 = 3.39 18 - 60 = 3.33
19 - 64 = 3.37 19 - 63 = 3.32

if you want to compare apples to apples, I think these are better numbers.
 
It basically depends on your set-up, if you are rolling free in the corners you should go with the highest drive gear that gives you the max rpm range for your motor. If you are slightly tight then go down 1 tooth if you can't free it up.
 
Rolling free in the corners, These cars have no power so there is no concern with weight transfer coming off corner. Flat foot all the way around the track. Honda GX390 running 4800rpm Thanks for the input
 
Back
Top