Will too much timing hurt top end/trap speeds?
04-16-2003, 04:49 AM
#1
Will too much timing hurt top end/trap speeds? When I got my converter installed, I had my shift points, rev limiter, etc adjusted via LS1 Edit. At the same time the tuner advanced my timing a bit. Well I was already on the lean side (13.1-13.4@WOT) but I figured it wouldn't hurt unless I heard some detonation, in which case I would just go back and have him retard it some.
Well at the track my traps have decreased 2-3 mph. I know the converter will do this but my top end seems noticeably weak right now. Is it possible that I'm getting detonation I can't hear, which is retarding the timing? Or is there anything else that could be effecting my top end? My traps went from 109 to 106-107.
Well at the track my traps have decreased 2-3 mph. I know the converter will do this but my top end seems noticeably weak right now. Is it possible that I'm getting detonation I can't hear, which is retarding the timing? Or is there anything else that could be effecting my top end? My traps went from 109 to 106-107.
04-17-2003, 02:39 PM
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Re: Will too much timing hurt top end/trap speeds? how much timing are you talking? I've done some dyno testing on my H/C car and it didn't respond to anything over 28 degrees. I went as high as 32 and it didn't gain/lose any power.
Your convertor will effect top end efficiency somewhat. Best thing to do is log your KR during a run (with Atap or whatnot) to make sure the computer isn't pulling timing...
Your convertor will effect top end efficiency somewhat. Best thing to do is log your KR during a run (with Atap or whatnot) to make sure the computer isn't pulling timing...
04-19-2003, 12:43 AM
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Re: Will too much timing hurt top end/trap speeds? Sure, if you're getting detonation and/or KR, you'll loose some power.
Best power will be found anywhere between 28-32 degrees depending on many things.
Best power will be found anywhere between 28-32 degrees depending on many things.
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04-19-2003, 10:22 AM
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Re: Will too much timing hurt top end/trap speeds? Sounds like you need to add some more fuel up top. If you were lean to begin with and he added more timing, that only makes it worse. I bet that is where your mph went.
