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07-28-2013, 04:30 PM
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#1 |
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Registered User
Join Date: Feb 2013
Location: Houston, TX
Posts: 89
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Truck idles high in park/neutral
I've got an '82 with a 350 sb with a eldelbrock rpm cam and a 670 holley street avenger carb. For some season, my truck will idle higher when it is in park or neutral. and normal when in gear. Is this normal? I don't have a tach hooked up yet so I don't know what rpms it's at. This was a freshly built engine with maybe 60 miles on it.
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07-28-2013, 05:29 PM
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#2 |
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Registered User
 
Join Date: Sep 2009
Location: D'ville Georgia
Posts: 470
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Re: Truck idles high in park/neutral
They do idle up when not in gear cause here is no load on the motor. Mine idles at 575 but jumps up to about 900 not in gear.
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Experience is something you gain when you didn't get what you wanted in the first place. No great defeat was ever just possible in the beginning. |
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07-28-2013, 05:55 PM
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#3 |
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Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,591
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Re: Truck idles high in park/neutral
Advance your timing to 14-16 degrees, then slow your idle down. Shouldn't be that big a drop. Maybe 150 rpm at the most.
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07-28-2013, 07:26 PM
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#4 | |
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just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: Truck idles high in park/neutral
How big is that cam? It make like a looser torque converter. That can make a bigger drop when going into gear.
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07-28-2013, 07:47 PM
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#5 |
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Registered User
Join Date: Mar 2013
Location: Oklahoma
Posts: 122
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Re: Truck idles high in park/neutral
did you check the fast idle adjustment on your carb, that normally does the trick
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07-28-2013, 09:23 PM
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#6 |
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Registered User
Join Date: Mar 2013
Location: Oklahoma
Posts: 122
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Re: Truck idles high in park/neutral
I forgot to add is the a/c kicking on, that will cause a higher idle.
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07-30-2013, 12:35 PM
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#7 |
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Registered User
Join Date: Feb 2013
Location: Houston, TX
Posts: 89
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Re: Truck idles high in park/neutral
It's a edelbrock performer rpm cam, with a 3k stall converter. Which is what edelbrock recommended with the cam. Also no a/c on the truck. And I really haven't messed witj the carb much, other than the curb idle screw.
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