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Old 02-13-2014, 02:33 AM   #12
brn12345
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Quote:
Originally Posted by arghx7 View Post
Are you really sweating those extra couple degrees of timing?
I agree that 2 odd degrees on just two cylinders might not make a world of a difference, but I do have a theory that I want to test out.

1. I have a hunch the stock map pulls timing in the 1/2 cylinders not because they are detonation prone.
2. When I changed to headers I measured the stock header primary's and noticed that 1/2 primaries are shorter than 3/4.
3. I installed Equal length headers.

So my theory is that the timing retard on 1/2 is there for pulse tuning purposes and since I moved to equal length that now the pulses are out of sync. I went ahead and zeroed out the tables and will be testing tonight to see the difference.

Does this make sense or am I just theorizing too much?
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