91 camaro running hot
#1
91 camaro running hot
today i was driving my 91 camaro on the highway to do some carb tuning. my temp gauge got to the 0 in "220" so i am guessing around 230 or so.
my engine is a pre-86 350 with aluminum heads, headers, cam(.458 lift), non-computer controlled anything. stock radiator with stock style dual fans wired to a manual switch(came stock with single fan), 160* thermostat, and just recently flushed.
i was driving around town and the temp got up to 220 or so with the fans on. that is usually as high as it gets. then when i went on the highway driving at 75 mph it got to 230. the fans were on constantly through out the drive. i do have an air dam installed but it has seen better days.
any ideas on what i could do to get it to drive cooler? i dont like it being that high.
my engine is a pre-86 350 with aluminum heads, headers, cam(.458 lift), non-computer controlled anything. stock radiator with stock style dual fans wired to a manual switch(came stock with single fan), 160* thermostat, and just recently flushed.
i was driving around town and the temp got up to 220 or so with the fans on. that is usually as high as it gets. then when i went on the highway driving at 75 mph it got to 230. the fans were on constantly through out the drive. i do have an air dam installed but it has seen better days.
any ideas on what i could do to get it to drive cooler? i dont like it being that high.
#2
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Re: 91 camaro running hot
If it's anything like my 84, the temp gauge is off. I have a 180 themostat and a 215 fan switch (single electric fan), but the gauge reads 240+ when the fan kicks on so my guage is about 25* hot. Unless your coolant is boiling over, I wouldn't worry about it if it steadies out at the 23o*mark. You can hit it with an IR thermostat/gauge to see what the temps are running in the radiator.
If the temps keep going up, i'd flush the system and replace the hoses and make sure your air dam is in good shape.
If the temps keep going up, i'd flush the system and replace the hoses and make sure your air dam is in good shape.
#6
Re: 91 camaro running hot
today i was driving my 91 camaro on the highway to do some carb tuning. my temp gauge got to the 0 in "220" so i am guessing around 230 or so.
my engine is a pre-86 350 with aluminum heads, headers, cam(.458 lift), non-computer controlled anything. stock radiator with stock style dual fans wired to a manual switch(came stock with single fan), 160* thermostat, and just recently flushed.
i was driving around town and the temp got up to 220 or so with the fans on. that is usually as high as it gets. then when i went on the highway driving at 75 mph it got to 230. the fans were on constantly through out the drive. i do have an air dam installed but it has seen better days.
any ideas on what i could do to get it to drive cooler? i dont like it being that high.
my engine is a pre-86 350 with aluminum heads, headers, cam(.458 lift), non-computer controlled anything. stock radiator with stock style dual fans wired to a manual switch(came stock with single fan), 160* thermostat, and just recently flushed.
i was driving around town and the temp got up to 220 or so with the fans on. that is usually as high as it gets. then when i went on the highway driving at 75 mph it got to 230. the fans were on constantly through out the drive. i do have an air dam installed but it has seen better days.
any ideas on what i could do to get it to drive cooler? i dont like it being that high.
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#8
Re: 91 camaro running hot
I would imagine the housing. But I suppose you could check both. Lol
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Re: 91 camaro running hot
I would change the sending unit 1st,that also has 22 yrs of crust and rust on it,so it wouldn't hurt to change that.
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Re: 91 camaro running hot
These cars cannot cool themselves at highway speeds without an air dam in place. You fans do absolutely nothing above 35 mph except get in the way of air flow.
Note the air dam does not force airflow up in front of the radiator, it's purpose is to create a vacuum behind the radiator, so that air is sucked in from the front (air moves from a hi pressure area to a lo pressure area).
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Re: 91 camaro running hot
My 2cents. Make sure your fans are pulling air, not pushing. Buy a new air dam, they're cheap.
Never heard it explained further, thanks.
Racer, Just some info on how the air dam functions.
These cars cannot cool themselves at highway speeds without an air dam in place. You fans do absolutely nothing above 35 mph except get in the way of air flow.
Note the air dam does not force airflow up in front of the radiator, it's purpose is to create a vacuum behind the radiator, so that air is sucked in from the front (air moves from a hi pressure area to a lo pressure area).
These cars cannot cool themselves at highway speeds without an air dam in place. You fans do absolutely nothing above 35 mph except get in the way of air flow.
Note the air dam does not force airflow up in front of the radiator, it's purpose is to create a vacuum behind the radiator, so that air is sucked in from the front (air moves from a hi pressure area to a lo pressure area).
#17
Re: 91 camaro running hot
Racer, Just some info on how the air dam functions.
These cars cannot cool themselves at highway speeds without an air dam in place. You fans do absolutely nothing above 35 mph except get in the way of air flow.
Note the air dam does not force airflow up in front of the radiator, it's purpose is to create a vacuum behind the radiator, so that air is sucked in from the front (air moves from a hi pressure area to a lo pressure area).
These cars cannot cool themselves at highway speeds without an air dam in place. You fans do absolutely nothing above 35 mph except get in the way of air flow.
Note the air dam does not force airflow up in front of the radiator, it's purpose is to create a vacuum behind the radiator, so that air is sucked in from the front (air moves from a hi pressure area to a lo pressure area).
#20
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Car: 1 Owner 1986 TA with a WS6 package
Engine: 5.0 EFI
Transmission: THM700R4
Axle/Gears: 277 Posi Speedo
Re: 91 camaro running hot
This is the diagnosis for temp.gauges for the Firebirds.I assume their the same for the Camaro's
Well now you know it's your gauge.
Well now you know it's your gauge.
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