Small pin 750ss cylinder on SX-R good or bad?

BAJA650RIDER · 02-16-2010, 02:38 PM

From what I have heard you can use a 750 cylinder on an SX-R...? I know it will all bolt up fine, but was wondering what it will change? Its a small pin cylinder also if that makes any difference? I know the tranfer ports are smaller and the port timing is different, but what will it change as far as performance? I an also going to run 750 81mm pistons.. any info will help Thanks!

mcn6 · 02-17-2010, 12:45 PM

The SX cylinders port time areas and durations are are not that much different than that of the SXR cylinders. In fact the differences are not even worth talking about...
The main difference you will see performance wise is a reduction of apx. 19cc displacement with the 81mm bore. Again not enough to even talk about...
Defenitely doable IMHO.

BAJA650RIDER · 02-17-2010, 01:40 PM

Cool thats what I have been told just wanted some more opinions! Thanks

team510 · 02-17-2010, 05:35 PM

i hear the sx cyl is better for lowend????

BAJA650RIDER · 02-17-2010, 07:23 PM

I have heard that also so atleast it all adds up to the same info!

john zigler · 02-20-2010, 11:19 AM

the bottom end is the same.

essentually what you will have is a 750 motor.