LS1TECH - Camaro and Firebird Forum Discussion

Generation III Internal Engine 1997-2006 LS1 | LS6
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View Poll Results: which idle rpm sounds the best with a cam
700-800
7
23.33%
800-900
16
53.33%
900-1000
7
23.33%
Voters: 30. You may not vote on this poll

cammed ls1's whats ur idle?

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Old 07-05-2009, 07:34 PM
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Default cammed ls1's whats ur idle?
im just wondering what you guys cars are idling at. so please post your cam specs and idle rpm.

mine is 575/578 lift, 232/236 duration, with a 110 lsa
and it idles around 900-950 or 850 with the a/c on which makes it sound choppy as hell
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Old 07-05-2009, 07:49 PM
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ms4-925/950...


i would drop yours to around 850..
Last edited by lemons12; 07-05-2009 at 08:01 PM.
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Old 07-05-2009, 07:53 PM
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No option for 1k+?
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Old 07-05-2009, 07:54 PM
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Originally Posted by DONAIMIAN
No option for 1k+?
how big of a cam are you running!?!

should be no reason to run 1k+..

only reasonable reasons would to be so you cant hear the lope..

or

your tuner sucks..
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Old 07-05-2009, 08:00 PM
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950
231/234 .649/.598 111lsa
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Old 07-05-2009, 08:11 PM
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224/228@114 .....900 RPM tuned by ECS
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Old 07-05-2009, 09:10 PM
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232/237 .614"/.619" 113 w/ 850 RPM, 900 w/ AC on
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Old 07-05-2009, 09:41 PM
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Mine idled at 650 with a mail order tune from wait4me, I recently bumped it to 725 just because it sometimes didn't want to catch idle coming from drive to park or neutral
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Old 07-05-2009, 10:14 PM
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750 must sound great

900 here
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Old 07-05-2009, 10:47 PM
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my exhaust is decent at hiding it some, its so damn quiet

but with the cutouts open the cam lope sounds down right nasty
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Old 07-05-2009, 10:51 PM
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whats up with you guys idling so high.. if i had a 230/23X cam on a .600 lift i would be at like 750-800..
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Old 07-05-2009, 10:53 PM
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Between 850 and 900.

228/230 .585/.585 @ 112 LSA
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Old 07-05-2009, 10:55 PM
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925 here, use to be around 750 to 800 but it was to ruff with having an auto.
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Old 07-05-2009, 11:03 PM
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Originally Posted by lemons12
how big of a cam are you running!?!

should be no reason to run 1k+..

only reasonable reasons would to be so you cant hear the lope..

or

your tuner sucks..
Lightweight clutch/flywheel and I'm solid roller

By the time the tune is finished it will most likely be 1000-1050
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Old 07-05-2009, 11:08 PM
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Originally Posted by lemons12
ms4-925/950...


i would drop yours to around 850..
yea i want it to be in the 800's all the time how would i go about doing that?
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Old 07-05-2009, 11:14 PM
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Originally Posted by DONAIMIAN
Lightweight clutch/flywheel and I'm solid roller

By the time the tune is finished it will most likely be 1000-1050
ahhh, makes a bit more sense now..

Originally Posted by austinsguitardude
yea i want it to be in the 800's all the time how would i go about doing that?
who does your tuning?
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Old 07-05-2009, 11:38 PM
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it was tuned at motorsport tech in Houston TX
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Old 07-05-2009, 11:40 PM
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Originally Posted by austinsguitardude
it was tuned at motorsport tech in Houston TX
well you could get someone with a handheld to bump it down a little bit..

but i would suggest taking it to a professional tuner.. i only let my tuner tune my car..

you could try adjusting the screw on your TB a little.. but you probably wont be able to bring it down too much.. maybe 50 rpms or so..
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Old 07-06-2009, 12:39 AM
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yea i tried that and i also tried making the holes bigger on my tps so i could turn it and nothing.
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Old 07-06-2009, 12:50 AM
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If its set in your PCM to idle at ____RPM, then the PCM will do everything it can to keep the motor at that RPM regardless of what mechanical changes you make.
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