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What do yall idle at?

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Old 10-15-2005, 01:24 PM
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Car: 91 RS
Engine: 350 TBI
Transmission: 700R4
What do yall idle at?

My 350 idles at 500 RPM's while in gear w/ no accessories running. I thought this might be a little low, but I'm curious as to what the rest of yall idle at in gear w/ no accessories?

What do yall think is too low? . . . . too high?

I know it's kind of a boring topic, just wondering. (kind of like my MPG thread )


Old 10-15-2005, 01:43 PM
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Car: A Camaro
Engine: Weak
Transmission: Weaker
With the bigger injectors, my car likes to idle at ~750, below that it's hard to get the pulsewidth to keep stoich.
Old 10-15-2005, 04:11 PM
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Car: 91 Camaro RS Convertible
Engine: 305 TBI
Transmission: 5-Speed
Axle/Gears: 3.42
Yeah mine's right at about 750 too, bbc injectors though. That is of course it WILL idle there if i ever get it running again
Old 10-15-2005, 08:14 PM
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Car: 1991 Chevy Camaro
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 3.42
My basically stock 305 TBI idles right at 650 RPM.

Last edited by Benm109; 10-15-2005 at 08:49 PM.
Old 10-16-2005, 07:46 AM
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Car: 1991 RS Convertible
Engine: 96 LT1
Transmission: T5
Axle/Gears: 3.45 9-Bolt
My Tach says 500 RPM... But when I hook a laptop up to the cars computer.. It says 650 RPM

Will I ever find a tach that is accurate?
Old 10-16-2005, 09:50 AM
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Car: 91 RS
Engine: 350 TBI
Transmission: 700R4
Originally posted by JerseyMark
My Tach says 500 RPM... But when I hook a laptop up to the cars computer.. It says 650 RPM

Will I ever find a tach that is accurate?
Mine is dead on.
Old 10-16-2005, 08:32 PM
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Car: 89 iroc-z
Engine: 305tpi
Transmission: wc-t5
Axle/Gears: 10 bolt 3.08 posi (4 now)
Originally posted by JerseyMark
My Tach says 500 RPM... But when I hook a laptop up to the cars computer.. It says 650 RPM

Will I ever find a tach that is accurate?
Mine is same as yours lol.
Old 10-16-2005, 10:11 PM
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Car: 1992 camaro rs T-top
Engine: 305 ci V8 TBI
I think that my car is around 800 or higher its kinda crazy for some reason it likes to idle rely high all the time even when its hot! could it be my 160 stat?
Old 10-17-2005, 12:16 AM
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Car: 1991 Camaro RS
Engine: LO3
Transmission: 700R4
Axle/Gears: 3.42 LS1
hmmm when warmed up etc ... in gear hmm maybe as low as 600 sometimes .. most of the time 650-700
Old 10-17-2005, 12:17 AM
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Car: 1991 Camaro RS
Engine: LO3
Transmission: 700R4
Axle/Gears: 3.42 LS1
160 stat

I tried the 160 stat for a while ... bad bad idea .. my engine never warmed up completely ... your engine may be running in "warm up" mode all the time
Old 10-17-2005, 04:56 PM
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Car: 98 z28
Engine: ls1
Transmission: t56
Axle/Gears: soon to be 3.73's
my extremely out of tune 350 tbi runs at a low 1250 rpm if it's warm, 2000 if it's cold, maybe the tach, maybe the tune
Old 10-18-2005, 09:27 AM
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Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
900 when cold, 525 when warmed up whether in Park/Neutal or Drive. A/C on bumps the idle to 600 in Drive, but when you shift into Park it goes to 1,000 and stays. .
Old 10-20-2005, 11:18 PM
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Car: 91 Camaro RS
Engine: 5.0L TBI (ebl inside)
Transmission: T-5
Axle/Gears: 3.42 lsd 10 bolt
Tach says 400~450 rpm, datalogs say 600~625.
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