Why do S/B chevys run like s&^* in the hot weather??? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 08-19-2002, 07:00 PM
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Post Why do S/B chevys run like s&^* in the hot weather???

I know I'm not the only one who knows this.But why????They scream in the cold and dogg in the heat.
I've heard that colder air has more oxegen than hot air,but why is it chevys are more sensitive.Evan at the track the same cars are quicker in the spring and fall than in the summer.For that matter there quicker first thing in the morning than afternoon.
Is it cylinder head design???

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Old 08-19-2002, 08:43 PM
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How is this only a Chevy problem?
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Old 08-19-2002, 08:48 PM
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I like 4 JAW see how this is not just a CHEVY problem.
All motors (even your lawn mower) is effected by humidity , temp, and altitude.
Racers are always tuning, not just for the day, but for each pass.
but the basics of it, cold air expands more under compression....bigger boom , more power.
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Old 08-19-2002, 09:06 PM
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I know all motors are effected by heat and humidity.But it seems everyone I talk to says the same I do.Chevys run like ******* it the heat.
For instance I beat the pants off a ford back in the spring.We ran again in the summer(90deg day) neither w/ more mods and I barely out ran him.

What got me to ask this is I was talking to my dad about cars yesterday and he said man I used to love to run them chevys w/ my 289 on a hot day,chevys can't run in the heat.
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Old 08-19-2002, 09:57 PM
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and don't put batteries on concrete floors.
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Old 08-20-2002, 10:13 AM
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yeah, right you guys. look at where your gas pump is. now look at where the gas line is routed up to the carb. right next to the engine prabably between the water pump (HOT), and the block and head (HOT HOT HOT). i would buy a long pc of 3/8 fuel line and re route it and see what happens. :p and i dont mean the steel kind either!
One more thing, when those lifters are zingin up and down where do you think all that oils splashing, the intake manifold? I be buyin an after market valley cover if i lived anywhere the sun shined.

[ August 20, 2002: Message edited by: bullheimer ]</p>
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Old 08-20-2002, 05:14 PM
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I heard that the battery on the concrete thing originated from when batteries where in a wooden box and that the concrete wood wick the fluid.
New batteries are not effected by this.

I think it would be nice to have a spell check in this site some how, I didn't realize how lazy I got with my spelling until I reach for spellcheck button and it isn't there.
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Old 08-21-2002, 06:03 AM
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Monte, I hear ya! I have had that impresson as well that it was more of a Chevy problem than others. Everything I wire now, I use a Ford solenoid for one! I do understand the scientific answers, but still... I'm with ya!
PS, thanks for the site from the wiring thread!
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