When I purchased my cobra it had a 2.3 whipple with a 2.9 pulley and it made 19 lbs of boost when on the dyno. It never had a boost gauge just a dyno sheet saying what boost and power it made. I recently installed a 2.9 standard whipple and a speedhut boost gauge. When I went to datalog I seen right at 21 lbs of boost, I am currently on a 3.5 pulley using 93 octane so this is a lot of boost. What would cause the boost to be so high with such a big pulley?
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