Conflicting T-Stat Info - Page 2 - Monte Carlo Forum - Monte Carlo Enthusiast Forums


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  #11  
Old 09-15-2010, 10:13 AM
 
Join Date: Jan 2010
Location: Winnipeg, Manitoba
Posts: 5
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Originally Posted by 03SS/00GSE/93LX View Post
I run a drilled 160 now in mine. It's really not bad at all. I programmed my fans to accomodate the 160 and it really helps with heat soak in the summer. I also think it prolongs transmission life, as my trans fluid stays about 20* cooler too.
How's your fuel mileage? Operating temp for 6th gens is 170*F and the computer will be running the fuel system in open-loop until operating temp is reached. The computer will run the afr (air-fuel ratio) richer to warm up the enginer quicker until you get to op temp; then the outputs of the O2 sensor, etc will be valid. Above 170*F the computer will then try to maintain a proper afr.

I'm not trying to be rude if you already know this -- I just figure people contemplating 160*F t-stats should be aware of what's going on. Plus, I live in Winnipeg, Manitoba where it gets to -40* in the winter and I don't even want to think of having a 160*F t-stat then, lol.
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  #12  
Old 09-15-2010, 10:31 AM

 
Join Date: Aug 2009
Posts: 565
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How's your fuel mileage?
Gas mileage is the same as it was with the 180* t-stat.

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Operating temp for 6th gens is 170*F and the computer will be running the fuel system in open-loop until operating temp is reached. The computer will run the afr (air-fuel ratio) richer to warm up the enginer quicker until you get to op temp; then the outputs of the O2 sensor, etc will be valid. Above 170*F the computer will then try to maintain a proper afr.
Absolutely not true. Stock closed-loop enable is 43* F- I just chcked this by looking at my stock .bin.

There are other AFR correction functions in the PCM, but these are time based, not ECT based.

I do agree that a 180* thermostat is a better choice for most folks, but I want my junk as cool as possible when sitting in the staging lanes before making a pass.
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2005, carlo, fuel, monte, monticarlo, requir, richer, stat, winter

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