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Do I need a new PCIII map if I just goto a 11.5:1 cp piston?

432 Views 2 Replies 3 Participants Last post by  TechQuadShop
Was just wondering since I already had a dynoed map do i have to have it retuned if i go from a stock to a 11.5:1 cp piston? elevation 2,000ft i believe
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In some cases with a big compression bump we have had to lean maps out a couple percent. But overall the map you are running now should be fine.
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