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Old 05-02-2009, 12:07 AM   #1
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Best Supercharger Crank and Pulley size?
I am curious what is safe for a supercharger Crank and pulley size with an 8 rib? Let say I went with 8" crank pulley size and would a 3.40" diameter pulley be safe for a 350cid Goodwrench Engine?

Just curious and let me know thanks.
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Old 05-03-2009, 03:12 PM   #2
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Re: Best Supercharger Crank and Pulley size?
Anyone, know??

Please let me know thanks.
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Old 05-05-2009, 11:06 PM   #3
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Re: Best Supercharger Crank and Pulley size?
No one, know? I am wondering also if there is an 8" Crank Pulley and 3.75 blower pulley out for sale? What brand and what is the boots?

Please let me know thanks.
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Old 05-06-2009, 11:46 AM   #4
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Re: Best Supercharger Crank and Pulley size?
What type of blower do you have? Is it a Vortech or a Paxton?
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Old 05-06-2009, 12:16 PM   #5
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Re: Best Supercharger Crank and Pulley size?
I was thinking of getting a ATI Procharger D1SC. I was told that they do have a 8" Crank and 3.75" pulley that would fit the charger, but not sure about the belt length. I try finding information if there is a 8" crank and 3.75" pulley out there, but no luck.

Thanks.
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Old 05-06-2009, 02:16 PM   #6
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Re: Best Supercharger Crank and Pulley size?
Try this spreadsheet, calcs blower speed with different pulley combos, dont know who to give credit to, found it on the web some time ago
Attached Files
File Type: zip supercharger_speed.xls.zip (9.8 KB, 26 views)
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Old 05-06-2009, 07:03 PM   #7
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Re: Best Supercharger Crank and Pulley size?
Thanks, I couldn't open the zip file. It failed for some reason.

Thanks.
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Old 05-06-2009, 08:30 PM   #8
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Re: Best Supercharger Crank and Pulley size?
here you go man it was a g.document i publised it online for you so i didn't take up this forums bandwith... have at it


http://spreadsheets.google.com/pub?k...MI6l6Qie1rly1w
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Old 05-07-2009, 08:59 PM   #9
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Re: Best Supercharger Crank and Pulley size?
Thanks, that interesting.
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Old 05-08-2009, 02:38 PM   #10
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Re: Best Supercharger Crank and Pulley size?
Well on my basically stock engine with a 7.65" crank and 4" blower pulley I would get 10psi at 5500RPM, with a 3.4" would end up with around 16PSI depending on pulley slip. This is on a D1SC blower but should give you a idea what to go for.
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Old 05-08-2009, 02:38 PM
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