still running warm under high speeds
Thread Starter
Racer
Joined: Feb 2007
Posts: 290
Likes: 35
From: St Augustine Florida
still running warm under high speeds
Newbe, here so bear with me,
72, 4spd small block.
Woud like to occasionaly drive this car to work on freeways at 70 mph, so I would like it to be dependable.
Car runs at 230-235 highway and cockpit gets really warm with carpet, floor insulation. Once it reaches these temps it won't idle,stalls and is hard starting. Recent Edelbrock carb, intake, and electronic ignition.
City driving it's around 200-210. I've had original radiator rebuilt,and installed 180 tstat.
Is a secondary auxilary fan and high flow water pump the next things in the cards to cool it down?
72, 4spd small block.
Woud like to occasionaly drive this car to work on freeways at 70 mph, so I would like it to be dependable.
Car runs at 230-235 highway and cockpit gets really warm with carpet, floor insulation. Once it reaches these temps it won't idle,stalls and is hard starting. Recent Edelbrock carb, intake, and electronic ignition.
City driving it's around 200-210. I've had original radiator rebuilt,and installed 180 tstat.
Is a secondary auxilary fan and high flow water pump the next things in the cards to cool it down?
Burning Brakes
Joined: Feb 2005
Posts: 1,235
Likes: 0
From: Mesa AZ
here's a couple a ?'s first:
do you have the lower spoiler in place?
are the seals around the rad?
fan clutch good?
what's your timing set at?
it could also be running lean, what do the spark plugs look like?
do you have the lower spoiler in place?
are the seals around the rad?
fan clutch good?
what's your timing set at?
it could also be running lean, what do the spark plugs look like?
Thread Starter
Racer
Joined: Feb 2007
Posts: 290
Likes: 35
From: St Augustine Florida
still running warm at high speed
Chris,
Those are all good questions. that I need to know. I"ll take it into to a more reputable place, that specializes in just vettes here in west Michigan, which is where I should of went from the onset, after I had carb and distributor work done. I'll ask them to look at all those thing first. Really appreciate the input, and will post what they have to say, thanks again!!
Those are all good questions. that I need to know. I"ll take it into to a more reputable place, that specializes in just vettes here in west Michigan, which is where I should of went from the onset, after I had carb and distributor work done. I'll ask them to look at all those thing first. Really appreciate the input, and will post what they have to say, thanks again!!
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Suggest this first:
your gage and/or sender may be faulty.
Compare & Verify temps w/ known calibrated stand-alone mechanical gage.
My 71 cockpit's hot because its thin glass floors w/ no metal shielding ... & its heater core that's always got HW coursing thru it ... likely your 72 same.
Maybe starter needs a heat shield ... or replace w/ late permanent magnet starter having No temp-sensitive field coils ... like on a mid-90's GM 5.7L pu truck.
If timing and/or mixture is off ... can easily cause engine temps to skyrocket ... including exhaust & underhood/floor temps.
your gage and/or sender may be faulty.
Compare & Verify temps w/ known calibrated stand-alone mechanical gage.
My 71 cockpit's hot because its thin glass floors w/ no metal shielding ... & its heater core that's always got HW coursing thru it ... likely your 72 same.
Maybe starter needs a heat shield ... or replace w/ late permanent magnet starter having No temp-sensitive field coils ... like on a mid-90's GM 5.7L pu truck.
If timing and/or mixture is off ... can easily cause engine temps to skyrocket ... including exhaust & underhood/floor temps.
