C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

timing and idle ?'s

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Old Jul 11, 2006 | 04:11 PM
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Default timing and idle ?'s

I set my timing at 8*btdc w/ est disconnected, my tps is at .54, and my idle is at 650-675.
Is 650-675 too low?

Last edited by Bubba91; Jul 11, 2006 at 04:20 PM.
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Old Jul 11, 2006 | 10:46 PM
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Old Jul 12, 2006 | 12:21 AM
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Mine idles around 900 and I'm fine with that. Last time I tried it didn't want to get as low as the tech advice told me.

Perhaps I was doing something wrong? Anyways, I idle around 900 and am ok with it.

If you're ok with your idle, it's ok with me, heh.
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Old Jul 12, 2006 | 11:41 AM
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Your idle if fine!
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Old Jul 12, 2006 | 04:00 PM
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it should be good
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Old Jul 12, 2006 | 04:04 PM
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On start up, mine idles around 1000 rpm. After a minute or two the idle comes down to 800 rpm or so, After I start driving the idle is at 675 RPM. Confirmed by scan. I think your where you need to be.
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Old Jul 12, 2006 | 08:51 PM
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Originally Posted by Bubba91
I set my timing at 8*btdc w/ est disconnected, my tps is at .54, and my idle is at 650-675.
Is 650-675 too low?
Your idle speed is burned into your chip. Your nonadjustable TPS and advanced ignition timing won't change your idle speed unless they cause a condition outside of the range the IAC can compensate for.

RACE ON!!!
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Old Jul 14, 2006 | 04:49 PM
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thanks to everyone
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