After reading the forums some have stated that stock belt size is fine because the tensioner picks up the slack. I am not running a BWK btw. Any advice or experience? Should I look to get a smaller belt? If so which is best, Gates HD, Jaguar or the new Gates RPM.

Thanks guys.

I've got 84mm pulley with stock crank, and no BWK. I run a Gates K080496HD with no problems. That's smaller than stock length, and is a tight fit, but still works very well.

I get much less belt squeak and a lot more supercharger whine.

I've got a K080485HD ready to go on if I go with a smaller pulley.

buy a BWK and get the belt included,, seems more than fair price -- check it out
https://mbworld.org/forums/w211-amg/...kit-259-a.html

I got the bwk 77mm pulley prob need to get smaller belt myself to much belt squeal on start up. sounds sad. and I just edit this post my belt size is def to big at k080530HD

This is the correct belt http://vrpspeed.com/index.php?route=product/product&path=60_92&product_id=222

and this is the best bwk available:
http://vrpspeed.com/index.php?route=product/product&path=60_81&product_id=195

Thanks for your purchase. Tracking has been added to Paypal

we sell the quick change brackets that come with our belt wrap kit seperate. Youre gonna need one.

thank you

Bump - apologize for bumping old thread but want to get input from people running the 77mm clutched for belt zie.

The belt numbers mentioned above (K080485HD) is quite a bit smaller than the stock. Wouldn't you just remove the size difference between stock SC Pulley and the 77mm (90 mm - 77mm = 13mm or .511 difference)?

Appreciate any input from those already using.

M

No reason to apologize imo...most of the threads are old...in many cases, bumping them is the only way to get the information to the newer generation of owners...

I am with 77mm and no bwk and last week added a 8PK1255 ContiTech and it fits very tight and minimal belt squeak ! Very happy with it !

Thanks. Are you running stock 154mm CSP? My contiTech right now works well but some people prefer the gates or Goodyear

Yes I am stock 154 CSP , I was running the stock belt but too much squeaking when i’m Off the trottle! Now is perfect. I was planning to do BWK but now I’m rejecting that option for sure. For me both Goodyear and ContiTech are fine , never had an issue.

thanks for the info. Not planning to do BWK either.

how much have your IAT and coolant temps changed since you did your SC pulley? Been trying to find out safe temp ranges since i’ve read about issues with fuel rail in #8 cylinders not getting enough fuel with high IAT.

can you post link for the belts you’re using? Thanks...

What is quick change bracket? Pics/pricing? Thanks

Hey just got a **** done of parts in So I have a 77mm clutch delete SC pulley and a 180 modular crank what size SC belt will I need and also serpentine

@shardul what's the ideal brand and model belt for a 72mm clutched pulley and BWK? I'm moving from 77mm SC pulley to 72mm clutched version. Just need to find the appropriate belt to go with it.
Thanks
Ajai