Cam Timing with Supercharger
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Joined: Oct 2007
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From: Mooresville, NC
Sideways. Any guestimate of the power gains possible at 12 psi/400whp vortech supercharged?
I think when I rebuild the blower and add the upgraded impeller I will do this as well. Should get some nice gains I think!
I think when I rebuild the blower and add the upgraded impeller I will do this as well. Should get some nice gains I think!
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Joined: Jan 2010
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From: MD
Originally Posted by RAIN H8R' timestamp='1303316160' post='20487849
This is very interesting. Keep in mind everyone that the OP has a built engine. The gains probably will not be as much on a stock engine with lower boost levels...
The bottom line is higher horsepower and more torque is available for us centrifugal supercharged guys. Just set it and forget it.
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Hope he's getting 6psi worth of added cooling. I don't know why anyone bothers with one of these on a Centrifugal Supercharger. Makes no sense.I'm thinking these offset keys would be worth doing. I'd like to see a few guys dyno them around my power/boost level.
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Joined: Oct 2000
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From: South of the pier, Huntington Beach, CA
Originally Posted by Sideways' timestamp='1304517549' post='20537106
[quote name='RAIN H8R' timestamp='1303316160' post='20487849']This is very interesting. Keep in mind everyone that the OP has a built engine. The gains probably will not be as much on a stock engine with lower boost levels...
[/quote]
Why would it not work for your set up? A small decrease in overlap makes a big difference for all centrifugal supercharged S2000s.
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Joined: Oct 2007
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From: Mooresville, NC
Originally Posted by Moddiction' timestamp='1308795191' post='20710575
^3.8" pulley only made 7 psi for you? 4" made just over 12 psi for me. Damn thats some massive pressure loss with a fmic.
Hope he's getting 6psi worth of added cooling. I don't know why anyone bothers with one of these on a Centrifugal Supercharger. Makes no sense.I'm thinking these offset keys would be worth doing. I'd like to see a few guys dyno them around my power/boost level.
haha yeah. Knew they sucked but didn't know that bad! A 3.8" pulley would make like 14 psi for me I think.
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Originally Posted by s2000Junky' timestamp='1308805043' post='20710947
[quote name='Moddiction' timestamp='1308795191' post='20710575']
^3.8" pulley only made 7 psi for you? 4" made just over 12 psi for me. Damn thats some massive pressure loss with a fmic.
^3.8" pulley only made 7 psi for you? 4" made just over 12 psi for me. Damn thats some massive pressure loss with a fmic.
Hope he's getting 6psi worth of added cooling. I don't know why anyone bothers with one of these on a Centrifugal Supercharger. Makes no sense.I'm thinking these offset keys would be worth doing. I'd like to see a few guys dyno them around my power/boost level.
haha yeah. Knew they sucked but didn't know that bad! A 3.8" pulley would make like 14 psi for me I think.
[/quote]
Yeah that's more then the 4psi typical. Probably got tuned with some belt slip too