belt routing question

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Dec 23, 2012 | 09:36 AM

Moter

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From: Hutto Tx

belt routing question

Hey folks,
I am in the middle of a conversion of an lm7 in a 50`s chevy. I am not using p/s or a/c. I have the alternator mounted on the pass side with the mounting kit from CBR performance. I am using a f body water pump and crank pulley. My question is...the how much of the water pump pulley needs to be touched by the belt? I think i may need an idler off the drivers side head or maybe the water pump so that the belt catches more of the water pump pulley.

Thanks

Dec 23, 2012 | 12:06 PM

Moter

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From: Hutto Tx

anyone??

Dec 23, 2012 | 12:30 PM

ls1nova71

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How much belt wrap do you have? I would say if you can't spin the water pump pulley with the belt on it should be alright, but if you can, then you need more wrap. Can you post a pic of your set up?

Dec 23, 2012 | 12:33 PM

i r teh noobz

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Not much. I've been running around 25% pulley contact area for a while with no issues.

Dec 23, 2012 | 01:07 PM

Moter

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From: Hutto Tx

as you can see not much room for idler on drivers side.

Dec 23, 2012 | 01:09 PM

Moter

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From: Hutto Tx

Quote:

Originally Posted by i r teh noobz

Not much. I've been running around 25% pulley contact area for a while with no issues.

i would say im close to 25%...i havent got a belt to tighten up and prove it but using a longer belt i put it on there to see routing. Just wanna make sure.
Thanks for the info folks

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