Is it hard to start your cold carbed car? - Chevelle Tech
2002 General Tech questions from 2002

 
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post #1 of 30 (permalink) Old Nov 17th, 02, 7:12 PM Thread Starter
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Location: Memphis TN
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I have a 454 w/ a BG 750 vac, sec and no choke and no choke tower. That rascal is pretty hard to start in this weather. Takes about 5 munutes to warm up until it will hold an idle. I have to keep it about 2000 rpm of it will stall until warmed.
Is that normal? How long does it take yours to warm up with no choke?
And, any trick you use to get her started quicker?
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post #2 of 30 (permalink) Old Nov 17th, 02, 8:18 PM
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John
 
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mine takes about a minute or so to idle on her own... i pump it 2x then she'll fire right off, the then i have to baby the pedal..... now get this though... i've run 4 different carbs on this car and this same thing happens, after she's opened the stat she Won't hold idle till all the water has warmed up, it's no yes no yes.... weird but that's the way it's been.

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post #3 of 30 (permalink) Old Nov 17th, 02, 8:19 PM
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Dave
 
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Here in south Georgia, my 427 with q-jet and stock intake is the cold bloodedest car that I've ever owned. I pretty much do the same as you, the sooner you get it on the road, the quicker it heats up. I've considered a manual choke, easy to install and use when needed.

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post #4 of 30 (permalink) Old Nov 17th, 02, 8:23 PM
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Bob
 
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In cold weather mine takes 2 or 3 minutes before it will idle. Not really hard to start, but it does take 6 or 7 seconds of cranking, while pumping the accelerator. Then when it does fire up it comes to life in an instant, it's like somebody flipped a switch or something. Gotta hold it around 1800 rpm for a couple minutes or it will die. We don't need no stinkin' chokes!

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Bob Von Kaenel
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post #5 of 30 (permalink) Old Nov 17th, 02, 8:55 PM
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Deon
 
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Mine does the same thing. Its like there is no vaccum till the water starts flowing. I hit the go pedal a couple times and she fires right up then hold at about 1500 for a minute or two.

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Deon Knecht
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post #6 of 30 (permalink) Old Nov 17th, 02, 9:00 PM
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Mine idles right after I start it. Fresh engine, stock quadrajet without choke and performer intake. Of course it has been in the 80s.

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1970 SS 454
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post #7 of 30 (permalink) Old Nov 17th, 02, 9:10 PM
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Show up in North Dakota sometime. Geeez, you guys.

A carb with a properly functioning choke should start better than a car with fuel injection, when it gets REALLY cold.

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post #8 of 30 (permalink) Old Nov 17th, 02, 9:13 PM
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The 454 in my 70 does the same thing as well. Pump it twice and it fires right off. Have to feather the gas for about a minute, then it will idle on it's own all day long. It has a good old Holley 3310 on it.

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post #9 of 30 (permalink) Old Nov 17th, 02, 10:19 PM
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On my 427 w/Holly I pump it once and it lights right off. I hold it at 2000 till it gets up to 140 deg. and drive it slow till it gets to 180 every time I start it cold. This works in hot or cold weather. Am I the only one who's car loves cold weather?

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post #10 of 30 (permalink) Old Nov 17th, 02, 10:55 PM
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Chris
 
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I have no choke or choke tower on my 950hp either, and in below freezing temps it will idle fine on it's own at 800rpm after about 30 seconds. You just need to get that idle circuit tuned up properly for the cooler weather and it should idle fine. I need to re-tune my idle circuit every time the average temperature changes by about 10 degrees celsius either way to maintain an idle that I am happy with.

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post #11 of 30 (permalink) Old Nov 17th, 02, 11:38 PM
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Daniel
 
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Yeah, my car loves cold weather also. For some reason i just feel it runs better. Colder air = denser air i guess
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post #12 of 30 (permalink) Old Nov 18th, 02, 12:15 AM
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Rob
 
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Mine must have died 10 times this morning when it was in the 20's but I need to fine tune it more. Very cold blooded.

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1966 Chevelle Malibu Sandalwood, Gold color
454, .30 over, 770 Holley, Edelbrock RPM Air Gap, 781 oval ports,
700 R4 transmission
12" disks up front and hope to have disks in the rear soon.

13.575 @ 100.22 mph. Second run ever.
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post #13 of 30 (permalink) Old Nov 18th, 02, 12:17 AM
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Rob
 
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Gandalf80 Very nice burnout. That was sweet.

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1966 Chevelle Malibu Sandalwood, Gold color
454, .30 over, 770 Holley, Edelbrock RPM Air Gap, 781 oval ports,
700 R4 transmission
12" disks up front and hope to have disks in the rear soon.

13.575 @ 100.22 mph. Second run ever.
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post #14 of 30 (permalink) Old Nov 18th, 02, 1:32 AM
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Derrick
 
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if you have a properly setup and functional choke, it should run perfect right away no matter how cold it is. a couple of other things that help cold weather drivability are the heat crossover in the intake and a stock snorkel air cleaner with the heat stove working. these warm up the incoming air and make it run right in cold weather. i have tried them both, and they do work. GM didn't spend millions of dollars perfecting these systems for the fun of it. i just wish they would put heat stoves on new cars. my 94 LT1 powered Caprice gets really bad fuel economy in the winter. my theory is that the cold air keeps it in "choke" mode, and keeps it running rich. i am trying to figure out a clean way to add a heat stove to it.

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post #15 of 30 (permalink) Old Nov 18th, 02, 1:42 AM
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i love cold weather and no choke
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