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why more decel noise in 2nd gear than 3rd or 4th?
Working to tame my decel cackling...
I notice when I lift off gas and coast down from 2nd I get a lot of cackling and popping. When I do the same in 3rd and 4th I get some, but much less. Why is this the case? Is it purely from drawing a stronger vacuum in 2nd? Why would this make more popping? Trying to figure it out so I can try to tune around it. I do have EFi and currently my fueling cell values are set to give me 14.5 AFR at low vacuum (below 32 kPa).
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Emery 1988 930 coupe - Silver Metallic TurboKraft 3.3L 8:1 CR, SuperSC Cams, GT35R, B&B Headers, TK intercooler, Tial WG, ARP, tecGT based phased sequential EFI & ignition, Wevo shifter/coupler, ... 
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09-27-2013, 05:49 PM
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