If anyone was ever wondering about what belt for a 2.75 whipple...

[spyder1337]

The K80755 will not fit with stock lower, 4 piece (3 100 - 1 90) aux idlers. I have a notched tensioner and that belt isn't going on. I'm running the same belt I had with my 3.0 K80765 (which was rather snug) and it's an inch larger overall. I believe the belt to have is the, K80760 which is right in the middle of the two previously mentioned. We will find out tomorrow if I have any belt slip when she's dyno'd.

That is all.

 

[CobraBob]

Let me know how the K080760 works and I'll update my Belt Selection Guide.

 

[spyder1337]

Going to have to get it tuned with the K80765 and see how it goes, it's tight just not as tight as it could be but I will report back!

 

[spyder1337]

Swapped to a K80760 and was perfect. 17/18 psi 590/560 2.75 19*

 

[98 Saleen Cobra]

^^ Awesome numbers man!!!! We should run now!!

 

[spyder1337]

Made a little bit north of 600 on the torco tune with a few more degrees of timing. The blower and car both sound and feel great!

 

[spyder1337]

Bob not sure if your site has the reference for a 3.0 pulley on a 2.3 whipple for the belt but with 3 100 and 1 90 aux is the K80765, snug but perfect