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[Texas 103]

Was curious if anyone has played with the timing on a TAMT yet>>> Thinking about adding 4 degrees from 0% to  about 40% TPS.  Suggesstions and Feedback Appreciated...Thanks Greg   

[sadunbar]

Was curious if anyone has played with the timing on a TAMT yet>>> Thinking about adding 4 degrees from 0% to  about 40% TPS.  Suggesstions and Feedback Appreciated...Thanks Greg   

Be careful.  Advancing timing adds heat and could cause detonation if advanced to far (burned pistons, lots of smoke and oil out your exhaust).  Why are you considering this change?  Is there something specific you are trying to overcome or achieve?

Scott

[Texas 103]

Be careful.  Advancing timing adds heat and could cause detonation if advanced to far (burned pistons, lots of smoke and oil out your exhaust).  Why are you considering this change?  Is there something specific you are trying to overcome or achieve?

Scott

Just wanted to tweak it  >>>

[Rhino]

The best way to make changtes to an existing map is to put it on a dyno.  Other than that, I would, and have, retarded some timing points only by 1 point...at a time..and rode it. 

I am curious how you decided to change the timing in that range, and by the points you noted.  Did this come to you in a dream, or did someone give you some solid info?  Thanks

Rhino(timesup)

[Texas 103]

The best way to make changtes to an existing map is to put it on a dyno.  Other than that, I would, and have, retarded some timing points only by 1 point...at a time..and rode it. 

I am curious how you decided to change the timing in that range, and by the points you noted.  Did this come to you in a dream, or did someone give you some solid info?  Thanks

Rhino(timesup)

Figured I'd put in a lillte in the bottom end and cruise and retard it a little at the top.. Just a W>A>G Wild Ass Guess>>Greg

[sadunbar]

Figured I'd put in a lillte in the bottom end and cruise and retard it a little at the top.. Just a W>A>G Wild Ass Guess>>Greg

I gotta tell ya - that is kind of back asswards.  There is a reason that ignition systems have devices that advance your timing as your RPM increases.  In the old days it was with weights in the distributor or vacuum advance, nowadays it is with computer chips or computer programming.  The reason is as the motor spins faster, the timing has to "advance more" to keep up with the action.  It would be kinda contrary to retard the ignition at top end.

Messing with the timing without understanding what you're doin is one of those things - like running lean - that can cause lots of problems real quick.  I'd pick another area to experiment with.

Scott

[Texas 103]

I gotta tell ya - that is kind of back asswards.  There is a reason that ignition systems have devices that advance your timing as your RPM increases.  In the old days it was with weights in the distributor or vacuum advance, nowadays it is with computer chips or computer programming.  The reason is as the motor spins faster, the timing has to "advance more" to keep up with the action.  It would be kinda contrary to retard the ignition at top end.

Messing with the timing without understanding what you're doin is one of those things - like running lean - that can cause lots of problems real quick.  I'd pick another area to experiment with.

Scott

You are right on Scott>>> Guess I was thinking about my old drag race days when we ran 12-1-comp and we able to kill one set of points  going into 4th gear and retard the timing on high end.. Big difference between that and what we are doing>>>I may just  be conservative add one or two degrees and as long as it dosen't ping or anything else..Greg