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Old 03-03-2006, 02:59 PM
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Blower gurus HELP please!

Simple question , ok kinda

Im building a Chevy 350 8.5 to 1 compression with a Weiand 6-71 supercharger, Dart iron eagle heads 202/160 valves.

I have a 37 tooth pulley and a 32

I have been looking at various tables on different web pages and I want to double check with you guys.

If I run the 37 on top and 32 on the botttom, what would my compression raise too? How much boost would that be and how much under driven would my set up be?

Thanks Guys, hope to fire this engine up soon.

Duke

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Old 03-03-2006, 03:16 PM
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My setup is 38 upper n 34 bottom and I make 11-12lbs of boost. But....The guys said with my setup (similar to yours) that I will only see about 8lbs.
Id guess that your looking at 5-6lbs???
Royce???? HG

p.s. Nice car!
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Old 03-03-2006, 03:50 PM
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8mm or 1/2 pitch pulleys?
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Old 03-03-2006, 03:53 PM
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Here You Go Man
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Old 03-03-2006, 04:50 PM
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Quote:
Originally Posted by Infomaniac
8mm or 1/2 pitch pulleys?

1/2

Ive been to the BDS site, but im double checking
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Old 03-04-2006, 08:06 AM
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Its right there man. 13.5 % under drive gives 2 lbs of boost.

2 lbs and 8.5:1 gives you 9.7:1
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