timing calibration question
1 Attachment(s)
So I tried to calibrate my timing via megatune. I go under spark settings, and change the timing from -10 to 10. Then I check the timing with my light. I get it to read -10 from adjusting the trigger angle. Then I change the 10 to a -10. My timing at idle reads 10 degrees on the balancer via timing light (physical). According to my map it should be different. What am I doing wrong?Attachment 10474
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If you rev the engine while observing the timing with the light, does it change?
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even i can barely folow that shit man. To confirm that your shit worked change the base timing in ms to 15 or something and note if it changes correctly or not.
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Originally Posted by Joe Perez
(Post 375786)
If you rev the engine while observing the timing with the light, does it change?
s go up, the timing should advance...which it does. It just doesn't seem to match. Unless I am not understanding something? The car seems to run ok, but I just want to make sure everything is calibrated properly... |
all i ever do is change all the idle bins on the spark map to the same amount (10* is easiest). hit it with the timing light, and either turn the CAS or adjust the trigger offset until it matches.
trigger offset should be roughly 70*, for the fwd BP anyway. i'd imagine the miata is the same, but take that number with a grain of salt. |
Originally Posted by thirdgen
(Post 376069)
Yes, the timing advances. My spark map shows that as the RPMs go up, the timing should advance...
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So I'm not sure what I was doing wrong, but I redid it today and got it to read 10* on the pulley, and then I set the 10 back to -10, and reburned. I checked it again and it was idling at 17* like it should according to the spark table. I must've not clicked reburn the last time or something. Just letting you know it's good now, and thanks for helping for correct my simple settings that I may have overlooked.
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