What is the rpm of my supercharger with?

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02-18-2013 | 11:31 PM
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Rob
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I have a 4.250 top pulley and a 8 inch bottom. What would my blower speed be at? how do I figure it?

3000 rpm
3500 rpm
5800 rpm


thanks
Rob

What is the rpm of my supercharger with?-car-boat-show-jackson-ms.-1-8-2012-109-large-.jpg  

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02-19-2013 | 01:03 AM
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TahoeRick
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Quote:
Originally Posted by Strip Poker 388
I have a 4.250 top pulley and a 8 inch bottom. What would my blower speed be at? how do I figure it?

3000 rpm
3500 rpm
5800 rpm


thanks
Rob
Jeeze... Sounds like almost two to one. 5000 rpm is about 9000 rpm blower speed
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02-19-2013 | 10:59 AM
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MILD THUNDER
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Quote:
Originally Posted by Strip Poker 388
I have a 4.250 top pulley and a 8 inch bottom. What would my blower speed be at? how do I figure it?

3000 rpm
3500 rpm
5800 rpm


thanks
Rob
8 divided by 4.250=
1.882 ratio

3000x1.882=5646RPM
3500 =6587RPM
5800=10915RPM
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02-19-2013 | 12:37 PM
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Rob
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Quote:
Originally Posted by MILD THUNDER
8 divided by 4.250=
1.882 ratio

3000x1.882=5646RPM
3500 =6587RPM
5800=10915RPM


Thanks for the math,I think Whipple said 15-16k was max, I guess 11000rpm is a good bit below?

so my normal cruz Whipple rpm would be 5600-6500rpm

Rob
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