KFtransam

so.. on a regular day my car heats up to about 220 230, the fan kicks and it drops to about 200.. seemed high to me so i figured why no do the 160 stat swap..

changed nothing, tried to burp the system, as far as i know i got all the air out.. still running at about 220 230

DisasterFormula

iTrader: (1)

Fans are still going to kick on at stock temperature settings. A 160 Thermostat only means the water starts flowing sooner but that's it. If you want your car to run cooler, you'll have to get a tune to change when the PCM commands the fans on.

RamAir95TA

iTrader: (2)

Nothing unusual about that. A cooler thermostat will only make your car take more time to heat up. It will still reach it's normal operating temperature regardless.

KFtransam

That's what I figured, just wasn't sure

But here's a new question, what's a good temp to try and keep it at with a tune?
If I had the fans set to kick on at 170 er so would I be stressing the fans by trying to keep it that cool?

defaultexistence

iTrader: (11)

160 t-stat + low fans @ 180 & high fans at 185 here= driving temps @ 178 & traffic temps @ 180-190 give or take.

lncboytre_d

THREAD JACK!!!!!!!!
Do you guys still heat up to 220 when in traffic or even go pass that? Mine does, can't figure out why.

lt1slowz28

if the fans arent programmed to come on sooner it will heat up until they do.


now if you mean it doesnt ever cool properly, either air is still in the system or you have a leak (head gasket or otherwise.)

defaultexistence

iTrader: (11)

No...:.

ZFreie

this is where it sits driving around, if I'm sitting it will just uncover the 160#s.

160*t-stat and fans to kick on at...170 and 180? Would have to go look to be sure, but somewhere in there.

guppymech

iTrader: (7)

+1 I run the same temps w/160 stat and madtuner tune, fans set to same temps. Works good.

blackjack325

iTrader: (1)

i have a 160 too. It gets pretty hot in South TX so mine will reach 210 on stop and go traffic with 102-3 degree weather. Im tuned with PCMforless

lt1slowz28

Havent driven mine since it wast 110+ out, didnt have any issues here in Cen Tex

lncboytre_d

I have my fans set at 185/195, I will lower the temps and see what happens. I am thinking the radiator is bad. It was the same way before my engine rebuild. In town or crusing it stays at 175-185, but when I am in stop and go traffic she heats up to 220 or more....as soon as I start moving she cools off all the way back to 175-185

Navy1992

My buddy did this to my LT1. Has a 180 stat, new Griffin 450hp rated Rad and stock fans. All he did was use a 1/16" drill bit and then 3/16" to make them slightly bigger, not my pictures but you can get the idea.

http://www.ls1howto.com/howto/fbody/...rillthermo.jpg
http://www.ls1howto.com/howto/fbody/...tallinpump.jpg

From him driving around in the summer when I was/still am on deployment, he never got over 200 with the a non-reprogrammed PCM for fan kick in temps