180 or 195 stat?
- Thread starter Fopar
- Start date
No downside with a 180*F stat unless California is a lot colder than I remember it. With our GT's propensity to ping, keeping operating temps lower isnt a bad thing.
You can run too cool and have issue with engine wear and air-fuel trim, but neither should be of issue if temps are 180-195*F.
Go with a decent stat if you change it - I like Mr Gasket but R. Shaw and other performance stats should work just as well. THey're worth the few extra bucks.
Good luck.
You can run too cool and have issue with engine wear and air-fuel trim, but neither should be of issue if temps are 180-195*F.
Go with a decent stat if you change it - I like Mr Gasket but R. Shaw and other performance stats should work just as well. THey're worth the few extra bucks.
Good luck.
. I figure if it's a little too cool the ECU will be turning fan on and off anyways...It's always a good idea to come up with alternate fan control. The fan doesnt come on till ~208*F (low) and 226*F (high). Low shuts off at 200*. That's just stupid (done for emissions).
I keep my target temp at 186*F, for example. Doing this helps maximize temp reduction from the T-stat. Otherwise, the stat change only really helps prolong the time it takes the car to heat up.
Good luck.
Stanger007
Founding Member
Also, in our PCMs, the cold fuel strategy is set to kick in below 180 degrees and from what I have read (DISCLAIMER: I am no expert) engine wear increases significantly when you are outside of the 190-210 degree range.
I'm running a 180deg tstat, stock radiator, stock airdam and stewart water pump. That keeps the temps down quite well where I live. With the addition of some lower fan on/off temps, the car stays quite cool even at the track hotlapping it.
Go with what HISSIN says above - he is the cooling system god and will steer you right.
Wes
I'm running a 180deg tstat, stock radiator, stock airdam and stewart water pump. That keeps the temps down quite well where I live. With the addition of some lower fan on/off temps, the car stays quite cool even at the track hotlapping it.
Go with what HISSIN says above - he is the cooling system god and will steer you right.
Wes
95BLKGT5.0
Founding Member
ah just a follow up, I found a 192 deg unknown brand thermostat 
in there. It wouldn't even fit in the thermostat housing the right way so they had put it in backwards. With the 180* stat it stays around the "N" which it should, oh and the fan kicks on right after the first mark which is probably at 180 or lower...
in there. It wouldn't even fit in the thermostat housing the right way so they had put it in backwards. With the 180* stat it stays around the "N" which it should, oh and the fan kicks on right after the first mark which is probably at 180 or lower...
bill302
Active Member
i vote for *180 mr. gasket or stant super stat....i like the design of the mr. gasket and i like the gurantee of stant which says the thermostat sticks it will stick in the open position...
hmm...with my Fluidyne radiator and 195 t-stat, my water temp doesn't go over 180-185 degrees even in 90 degree weather. With the 180 t-stat, it wouldn't even warm up enough and was running 150-160 degrees
Huh? The T-stat is what regulates coolant temps. You have to remember that the coolant temps vary widely throughout the system. Depending upon where your gauge sender is, there can be a difference right there (same gauge, same sender will read differently in different locations).
ya i'd have to agree with that, and add that maybe your gauge is wrong... I don't care how good your coolant system is if the stat isn't open it's not going to work.
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