Tony1963 is correct chances are good you need a larger or at least newer and less clogged up radiator
and a fan shroud and clutch fan, if your over heating your system is not effectively transferring heat from coolant to air
the heat transfer rate and the efficiency your engine runs at is determined BOTH by the efficiency of the vehicles cooling system and the t-stat opening temp
the t-stat is limiting flow below its rated temp, the cooling system efficiency, the rate the cooling system can transfer heat to the outside air flow, the outside air temp,
will determine the upper or running temp above the t-stat opening temp.
keep in mind a t-stat does not limit the cooler coolant entering the engine, its function is to keep the coolant flow through the engine minimized,
until its absorbed enough heat to reach the t-stats opening temp that allows the coolant to flow out of the engine.
Id also verify your not dealing with a stuck or defective t-stat,
a leaking head gasket,
incorrect ignition timing issues,
an intake manifold vacuum/air leak
a leaking cooling system,
low oil or coolant levels
and maybe a defective electric fan or sensors,
or a partially blocked radiator, on some cars like most corvettes
you can suck up trash like plastic bags, or grass clippings or leaves that block air flow,
through the radiator
read links and sub links
cleaning trash out of the radiator fins
Radiator Cleaning I'm wondering how much crap has been sucked up into the radiator, on my c4 corvette, its just seems to be a big road trash vacuum cleaner at times, SO,What's the procedure for getting in there on my C4 corvette! Thanks http://www.grumpysperformance.com/trashgrill4.JPG...
garage.grumpysperformance.com
Cleaning Out Older Radiator
here's a few links, concerning cleaning out a radiator that might have become rather restrictive to flow of coolant over a few years,if your car runs hot, one potential reason is a partially clogged radiator, back when I was younger (1950s-late 1960s) it was rather common knowledge that you...
garage.grumpysperformance.com
cooling system / pressure/cooling issue?
BBC with mechanical water pump will hold a lot of pressure for a week or more. When I remove the cap 6 or 7 days after the last drive to check fluid level, the water blows out with pressure. It doesn't seem to loose any fluid while driving but does seem to run hotter than I would like. Have been...
garage.grumpysperformance.com
thoughts on cooling
read this, yes theres a good deal of info in the links worth the time and effort, and yes its well worth your time to read thru keep in mind, that if your engine is mechanically functioning correctly, IE there are no problems like leaking head gaskets or the wrong head gasket or a cracked head...
garage.grumpysperformance.com
Blown Head Gasket ???
Would there be signs of a blown or just leaking head gasket or both gaskets on the spark plugs? Or will they still look normal? Thanks in advance...
garage.grumpysperformance.com
locating vacume leaks
locating those intake manifold or other vacuum leaks is fairly easy if you have a tachometer and a propane torch yeah the way I find vacuum leaks on carb OR MPFI intake manifolds is clean and easy with no mess. get a propane torch,or you can use your oxy-acetylene welding torch if you have...
garage.grumpysperformance.com
related threads
how the cooling system works, basics
READ THE LINKS, POSTED IN THIS THREAD and their sub links ALSO Almost all engine combos run best, and have the least wear and emissions when your running a 180F-190F t-stat and the engine coolant temp stays in the 180F-210 f range, most of the time. keep in mind a t-stat does not limit the...
garage.grumpysperformance.com
auto cooling system flow rates and heat transfer
have you ever read stuff posted on line and just shake your head at the lack of facts or in some cases outright MS-INFORMATION being posted? Honestly I'm amazed at the common myths and out right ms-information that's constantly repeated over and over as if it were facts, and a bit mystified that...
garage.grumpysperformance.com
do I need the fan shroud?
So here is what I got. I have an electric fan on my car. I'm getting a new radiator that is a good bit thicker in the car and the aluminum shroud would require some... Modification to fit. My question is would it be advantageous to modify the shroud over just attaching the fan directly to the...
garage.grumpysperformance.com
tips, on cooling
just some info too think thru the engines state of tune effects the heat generated, vacuum leaks tend to increase heat, octane used effects the heat, your ignition timing curve effects the heat the type of coolant effects the rate heats transferred...
garage.grumpysperformance.com
Mechanical cooling fans power loss, dyno results
Engine Masters 15 minute video testing 4 different types of fans to see how much power it takes to run them.
garage.grumpysperformance.com
running too hot,
Too hot intake temp=Vapor lock So when I put my 454 together initially, I installed a 170* thermostat with the misaligned thought it would help keep the motor cooler during the break in period. Wrong! The T-Stat never closed to allow the water to be cooled off by the radiator and fans. I didnt...
garage.grumpysperformance.com
Last edited: