I put a tiny bit of inj duration on the 0 throttle line to create a bit of overrun rumble like my overcarbed Lemans did. I actually like it as it's not too loud.  will this cause long term issues with my engine? 

InjDur 00  4496  2800  2800  1520  1504  1440  1296  1296   960   912   992   848   912   912   752   608

Quattroporte wrote on 07/06/10 at 13:05:02:

I put a tiny bit of inj duration on the 0 throttle line to create a bit of overrun rumble like my overcarbed Lemans did. I actually like it as it's not too loud.  will this cause long term issues with my engine?  InjDur 00  4496  2800  2800  1520  1504  1440  1296  1296   960   912   992   848   912   912   752   608

I think what happens is the mixture doesn't ignite until it reaches the hot downpipe. Shouldn't cause any issues as far as I know. I got similar effect from zeroing out all of line 0 (above 2000 rpm or so) - I suppose it actually happened between row 0 and 1 due to interpolation. Somewhat cool but I grew tired of it quickly.