Quote:
Originally Posted by 86TOYO2k17
Stock belt would work fine. But more belt wrap is typically a good thing.
Or get Nuline EP121 or Dorman 419-610 Idler Pulley for extra belt wrap, the nuline has lots of reviews/high praise. But dorman was 9$ and has worked flawlessly for me. Both same 76mm diameter but dorman is a bit wider so belt rides perfectly centered with plenty of space on either side don’t have to worry about belt jumping or sliding off.
then you'll want to pair either pulley with K061020RPM this would probably be the best combination.
RPM belt is much stiffer and the grooves don't have as much space/width so it really bites and grabs hard and right away. Eliminates any belt slip and helps on throttle response.
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Awesome thanks. Is the RPM the blue belt people talk about? Interestingly, the idler pulley that came with my kit is metal..not plastic like many others here seem to have. Perhaps it's already upgraded? I'll measure it and see how wide it is.
The other thing that is interesting to me is that when I bought the kit, from Toyota.. they asked me if my car was auto or manual. I said manual but why would that matter? They responded that auto's tend to throw the belts. But that doesn't make any sense to me.