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Old 03-13-2018, 09:10 AM   #63 (permalink)
jchammond
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Yeah, good videos.
A question that I have (and probably tight lip info per engine builder) is ring gap setting.
As the oem VQ37VHR has a ring gap of .0091” on 1st & 2nd ring.
As the VQ isn’t normally boosted & looking over boosted recommendations of similar engines, such as a VR38DETT, ring gap setting on e85 is (bore x .005) 1st & second rings- up to 15lb boost & (bore x .006) 15-30lb. That’s (.018-.022) on 1st & 2nd rings.
Make you wonder how boosting stock bottom ends & making big power over long periods of time is capable...engine must be very forgiving.
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