Pulley size change on a Maggie
10-10-2014, 05:37 PM
#1
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Pulley size change on a Maggie
I have a 3.1 pulley on my Maggie now. I want a few more HP. I'm at 505 now, 7 lbs boost. What can I expect with a 2.9"? How much shorter belt do I need? Is a new tune needed?
10-10-2014, 05:48 PM
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10-10-2014, 11:51 PM
#3
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i'd expect about 9psi, and assuming the tensioner ain't at its max travel now, you should be fine. my 2.9 belt still works with my 3.3
depending on the tune, you might pick up another 30hp with +2psi
depending on the tune, you might pick up another 30hp with +2psi
10-11-2014, 09:13 PM
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Thanks.