5hp for a 10hp

[foster2484]

im taking off the 5hp briggs motor on my cart and replacing it with a 10hp briggs. anything i should know when doing this? will i get alot more low end or top end power???

 

[BradenM]

More of both.

Mounting pattern for engine will change, and I'm pretty sure you will need a 1 inch bore cent. clutch.

 

[foster2484]

should i continue to use the governor?

 

[BradenM]

Its the source of ongoing debate. If you did remove the governor, would you be doing any other performance enhancing modifications? If not then it shouldn't be a problem.

If I were you though, I'd just gear it taller. Make use of all the extra power you just got.

 

[foster2484]

well right now i have a 12clutch and two sprockets (60&72) with my 5hp the are #35 chain. i want to stay with the #35chain. but should i get a 10 or 12 tooth chutch? and is a 72tooth sprocket tall enough? sorry for all the questions kinda new

 

[BradenM]

whats the diameter of your tires? And how fast would you like to be able to go?

 

[foster2484]

prolly around 30mph or so the back tires are 14" and the front are 12.5"

 

[BradenM]

At your max Governed RPM (Est. 3600) with 14'' rear wheels, and having a 12 tooth clutch and 60 tooth sprocket you should reach 30mph. With the 10 tooth clutch it's 25mph.

You could probably spare the power to gear it down to about 50 tooth rear sprocket, for a top speed of 36mph with the 12 tooth clutch, or 30 with the 10 tooth. Even 45 tooth rear sprocket would be permissible, to get you 40mph with the 12 tooth clutch or with 10 tooth 33mph.

http://www.diygokarts.com/speed-calculator.html

Braden.