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I tried the phase map and it didn't do anything for me. My problem was popping in the exhaust when coasting down hills in gear at low rpm's ( < 2500). What I did to fix was lower the bar height in those ranges to only inject a small amount of fuel. almost like fuel cut on decel but not quite. I didn't totaly do fuel cut because I premix.
Originally posted by setzep I tried the phase map and it didn't do anything for me. My problem was popping in the exhaust when coasting down hills in gear at low rpm's ( < 2500). What I did to fix was lower the bar height in those ranges to only inject a small amount of fuel. almost like fuel cut on decel but not quite. I didn't totaly do fuel cut because I premix.
try retarding the timing right there too. the distributor cars do this, @zero throttle they turn off the vaccum advance
ahh... I'll have to give that a try also. I did find a small exhaust leak at the end of my DP that may have helped induce air to the exhaust and cause some of the popping. I'll fix the leak and also retard the timing in high vacuum areas and report back.
Thanks.
I tried knocking the timing down a bunch (10deg btdc) and it didn't do anything for me. Reducing fuel works like a charm but I can get a slight hesitation during transition from off to on throttle.
Originally posted by setzep I tried knocking the timing down a bunch (10deg btdc) and it didn't do anything for me. Reducing fuel works like a charm but I can get a slight hesitation during transition from off to on throttle.
yeah, thats hard to tune out, sometimes even the factory stuff has trouble there
Linear Mode
