What size aux belt for 172 cup set up with out PAS

[chrispy.clio]

Just need to know what size belt you would need to fit on a 172 cup set up which doesn't run the PAS.

I thought it was an 850 5 rib but it's not long enough as the alternator doesn't go low enough like it does usin the Volvo brackets.

 

[sideways danny]

850 should be long enough, if not too long

 

[chrispy.clio]

Hmmm well I have on my car is a belt from halfords HB850 f

So I got that one for another car and it doesn't fit. I'm not 100% sure but it looks like It might have a larger alloy crank pulley!

Can I just measure it with a piece of string and try matching it up with the closet belt size

 

[sideways danny]

yes do exactly that, it's purely a length

 

[Struggler]

sorry to dig this up but what size belt did you use in the end??

im running what i think is the volvo set up, and the belt that i used on my F7R is no where near long enough!!

did i read correctly that youre meant to use a 850mm 5rib belt with my set up??

thanks

heres a pic of my set up, sadly with no aux belt atm

sorry if a bit unclear, its all powercoated black!!

 

[Dan519]

as above, 850 should be spot on. Think I ran an 825 on my F7R

 

[Jay Payne]

850 on ours, using volvo brackets and cup alt