zed Posted February 14, 2011 Report Share Posted February 14, 2011 I'm running an L18, .040" oversize, with L28 flat tops and skimmed V912 head - compression about 11 to 1. Two questions: 1. The Nissan owner's manual gives timing as 8 to 10 degrees BTDC. But that is for a stock motor. Should I not retard my timing - because the mods I have done on my L18 will shorten combustion/burn time? 2. When I rev the motor to about 2500rpm with a stroboscope timing light connected, the timing seems to advance very little - maybe to 12 or 15 degrees BTDC. But Honsowetz says total timing should be around 35 BTDC. thanks for any advice Quote Link to comment
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