Quote:
Originally Posted by JANNETTYRACING
The Ratios are in the chart above in post 6.
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Yes that chart has ratios, but I am uncertain if what they are claiming as "stock" (7.8" crank pulley & 3.0" SC pulley) is OEM or if that is some Lingenfelter pulley that achieves stock boost levels.
Like you already mentioned, that chart is from Lingenfelter and the chart on your site is from Metco. The one from Metco says "stock" is 8" crank & 2.85" SC. Maybe that's just what they use to get to "stock boost levels" and not OEM sizes?
