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View Full Version : crankshaft or jackshaft?



steveos89xr7
06-01-2012, 10:18 PM
which will i gain the most boost safely, i have a 10% od on my blower also ported with aem methonal injection. and how hard is the install on either of these thanks!

rzimmerl
06-01-2012, 11:01 PM
Jackshaft is much easier.

steveos89xr7
06-03-2012, 11:14 AM
thanks which pulley is that? haha

steveos89xr7
06-03-2012, 11:28 AM
got it. now my question is 5% or the 10% what would be safest for what mods i have? thanks a lot for the input

rzimmerl
06-03-2012, 12:48 PM
What blower is it?

steveos89xr7
06-03-2012, 01:11 PM
early model m90 eaton 1989 xr7