Whats the ideal temperature for a chevy 350? I have a 91 tbi motor but it has a holley sniper on it and electric fans. Ive read that tbi motors should run at least 195 to make the computer happy and that is about where im at 190-200. But is that the best? How much does temperature affect power and fuel economy?
CK5
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Engine operating temperature.
- Thread starter jkeys0218
- Start date
were are you getting your coolant temp info from ? stock or after market gauge or sniper ?
if the sniper unit make sure you read this here and learn from my past problems as well as ALL the others with the same problem . https://forums.holley.com/showthrea...ensor-problems-way-off-range-3-sensors-tested
and 180-195 range will be fine for these older engines and operating temp range .
if the sniper unit make sure you read this here and learn from my past problems as well as ALL the others with the same problem . https://forums.holley.com/showthrea...ensor-problems-way-off-range-3-sensors-tested
and 180-195 range will be fine for these older engines and operating temp range .
The snipers sending unit is on the intake near the radiator hose and I also have a mechanical gauge in the drivers side head. They sniper reads 3-5 degrees cooler.
you must of got lucky and got a sensor from a new batch .
Yeah mine is a couple years old I think. I got it used from a guy I work with. I read that whole thread on the Holley forum. Its sad that they aren't standing behind their products. I agree with you it doesn't matter if it cost $1 or $1000. There is obviously a problem with their part and they should replace it.
Ive only had it for a few months but so far I haven't had any problems. If I do start having problems I'll sell it and get the pro flo 4. That was the original plan, the Holley was just too good a deal to pass.
EDIT: Just realized im not using the Holley cts. I noticed it was missing when I was installing the system. I have which ever one o'rileys has that works with the Holley. I think its an ac delco.
Ive only had it for a few months but so far I haven't had any problems. If I do start having problems I'll sell it and get the pro flo 4. That was the original plan, the Holley was just too good a deal to pass.
EDIT: Just realized im not using the Holley cts. I noticed it was missing when I was installing the system. I have which ever one o'rileys has that works with the Holley. I think its an ac delco.
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I have a TBI swirl port head engine in my 1991 crew cab, and it has a 190 degree thermostat in it. It runs at 190 degrees pretty steady. My new crate engine only has about 7000 miles on it. I put a lot of effort into making sure the coolant passages in that new engine where as clean as possible. While the new engine was on the engine stand I took a garden hose, and flushed out the passages in the block through the water pump ports with the engine covered in a plastic bag to make sure water did not go where it was not supposed to. Then I laid the engine face down to drain it for a couple of days. You would be surprised how much dust and small metal shavings will come out of even a brand new engine. I then installed a new radiator, heater core, and hoses. I flushed those out with the garden hose then drained those too.
