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What does your fbody idle at?

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Old 04-07-2007, 10:10 PM
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Default What does your fbody idle at?

Mine is a perfect 1000rpms always start up wait 2min for it to sit there and warm up and it stays at 1000 always never above or below I found that kinda odd... lol but what is the stock normal rpm your car should idle at?
Old 04-07-2007, 10:12 PM
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1000 revolutions per mile
Old 04-07-2007, 10:17 PM
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Originally Posted by Revelation Z28
1000 revolutions per mile

You mean per minute?
Old 04-07-2007, 10:19 PM
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850, but I wanna get 725 so you can hear that 114LSA lope a lil bit.
Old 04-07-2007, 10:20 PM
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is it better to be lower on these cars or higher? Just thinking if I should get a tuneup or not
Old 04-07-2007, 10:21 PM
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mine is 1200 on start up and 785 normal idle. your car should idle higher ion start up (choke mode) then normal driving that is odd to me 2 i would check that out if your car is staying in warm up mode you have some more power on tap if u get that fixed!!! altho i might be wrong thats just wat i have always heard
Old 04-07-2007, 10:22 PM
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mine is 1000rpms when i first start it up and goes down to about 800rpms.
Old 04-07-2007, 10:29 PM
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Mine also at 1000 rpm at startup and then goes to around 800 rpm.
Old 04-07-2007, 10:37 PM
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Originally Posted by thaigleshmk
You mean per minute?
didnt get the joke.
Old 04-07-2007, 10:37 PM
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my tach reads 900RPMs.
Old 04-07-2007, 10:47 PM
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redline
Old 04-07-2007, 11:00 PM
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I've just generally noticed it always around 1000. I actually think mines a little below that. As long its not more than 200rpm off, I really don't worry about it in general. Talk to some people that REALLY watch their cars, and they will tell you different, but for the general range, thats about right to me. My .02
Old 04-07-2007, 11:03 PM
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alright I just checked to make sure anyways but if I start the car and let it run for like 5min I timed exactly it seems to go to 900 and sit there then. Does that seem right now?
Old 04-07-2007, 11:20 PM
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About a 1000 on mine
Old 04-07-2007, 11:22 PM
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My tach READS about 500 rpm idle once warmed up and in gear. I wouldn't necessarily believe this, but at the same time, my alternator will drop charging. Just putting it in neutral raises the idle maybe ~50-100 rpm's and the alternator will kick back on. Anyone else experience this?
Old 04-07-2007, 11:38 PM
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The factory preset idle speeds for ALL LS1 F-bodies '98-'02:

550rpm in gear, 650rpm in park/neutral (A4)

800rpm (M6)

Idle will be higher at cold temps and on a cold start, but those are the numbers for a warm motor.

The only way you have a different idle speed is if you have custom tuning, or something is wrong with the car causing it to idle too low or high.

Don't pay too much attention to your factory tach. Mine shows an in gear idle of about 700rpm, but my scanner always shows 550 (+/- 25rpm).
Old 04-07-2007, 11:59 PM
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1k on start up and 850-900 when warm
Old 04-08-2007, 12:04 AM
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After startup mine will idle at 800-900rpm
Old 04-08-2007, 07:26 AM
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1100-1200 cold and 850-950 warm but I have a real healthy cam in there.
Old 04-08-2007, 08:19 AM
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800.



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