TC Belt Advice

[jonbenderr]

Hello all!

So I just finished up installing a FNR box on my kart and my center to center distance from driver to driven pulley has changed to 7-3/8".

I have a 7" driven pulley. The original belt was a 203591.

The obvious choice now seems like it might be 203592. The center to center distance limit on this 7-5/16" to 7-3/8". So I would be right at the max which is what is causing some hesitation on purchasing.

The next step up, 203593, has a min/max center distance of 7-3/4" to 7-13/16.

Just looking for opinions on the matter.

Also, the following link from BMI is where I am getting these numbers...

https://www.bmikarts.com/30-Series-Comet-Torque-Converter-Drive-Belt_p_999.html

 

[itsid]

Nono, distances are meant "including"

so if the belt is meant to be for up to 7-3/8" CtC it's the one you want,
NOT the next size up.

'sid

PS diffeerent source: https://www.gokartsupply.com/tcbelts.htm
same result

 

[jonbenderr]

Ok. Since the measurement was at the max of that range I was a bit concerned.

Thank you very much.

I will be sure to post here how I managed to get the reverse box mounted once I confirm that everything is solid!