thermostat suggested
09-02-2014, 01:24 PM
#8
09-02-2014, 01:29 PM
#9
Pro
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Remove it and the caddilac (sic) converter...they were put in by the EPA who wants you to ride a bike or drive a Prius instead. Don't listen to anyone else here that says to keep it in, they work for the EPA and Obama.
09-03-2014, 02:54 PM
#12
Melting Slicks
I agree. If the decision is made to replace the thermostat with new however, might as well replace the water pump too. That's the only time I have replaced mine. My current (stock) stat has been for over 100k miles.
Last edited by Jimbeaux; 09-03-2014 at 03:04 PM.
09-03-2014, 03:19 PM
#13
Melting Slicks
Keep in mind that your engine was made to run at a particular temp. +/- a few degrees.
Running a cool (-35 degrees) thermostat will fool the fuel management into thinking it is always "cold". This will make for a richer mixture. Not good.
Other wear problems can occur as well. Stick with the 195.
Note: I flushed and changed my fluid about a month ago (13,500 miles), and the car generally runs 2-4 degrees cooler than before.
Very slow process. Easy, but tedious. Make sure you have other chores to do while waiting for the heating & cooling cycles.
Running a cool (-35 degrees) thermostat will fool the fuel management into thinking it is always "cold". This will make for a richer mixture. Not good.
Other wear problems can occur as well. Stick with the 195.
Note: I flushed and changed my fluid about a month ago (13,500 miles), and the car generally runs 2-4 degrees cooler than before.
Very slow process. Easy, but tedious. Make sure you have other chores to do while waiting for the heating & cooling cycles.
09-03-2014, 03:53 PM
#14
Race Director
i have to admit that i removed the CAT on my new 1981 vette back in 82 and it ran just fine. actually, it sounded twice as good as my buddies 79 and 81 corvettes. (we all bought them at the same time) i swear it sounded like i had the npp exhaust on that car. just sayen
09-04-2014, 09:24 AM
#15
Safety Car
Keep in mind that your engine was made to run at a particular temp. +/- a few degrees.
Running a cool (-35 degrees) thermostat will fool the fuel management into thinking it is always "cold". This will make for a richer mixture. Not good.
Other wear problems can occur as well. Stick with the 195.
Note: I flushed and changed my fluid about a month ago (13,500 miles), and the car generally runs 2-4 degrees cooler than before.
Very slow process. Easy, but tedious. Make sure you have other chores to do while waiting for the heating & cooling cycles.
Running a cool (-35 degrees) thermostat will fool the fuel management into thinking it is always "cold". This will make for a richer mixture. Not good.
Other wear problems can occur as well. Stick with the 195.
Note: I flushed and changed my fluid about a month ago (13,500 miles), and the car generally runs 2-4 degrees cooler than before.
Very slow process. Easy, but tedious. Make sure you have other chores to do while waiting for the heating & cooling cycles.
To the OP: You don't NEED to change the thermostat, but it won't hurt, and in some conditions, will help.
09-04-2014, 11:59 AM
#16
Cruising
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Keep in mind that your engine was made to run at a particular temp. +/- a few degrees.
Running a cool (-35 degrees) thermostat will fool the fuel management into thinking it is always "cold". This will make for a richer mixture. Not good.
Other wear problems can occur as well. Stick with the 195.
Note: I flushed and changed my fluid about a month ago (13,500 miles), and the car generally runs 2-4 degrees cooler than before.
Very slow process. Easy, but tedious. Make sure you have other chores to do while waiting for the heating & cooling cycles.
Running a cool (-35 degrees) thermostat will fool the fuel management into thinking it is always "cold". This will make for a richer mixture. Not good.
Other wear problems can occur as well. Stick with the 195.
Note: I flushed and changed my fluid about a month ago (13,500 miles), and the car generally runs 2-4 degrees cooler than before.
Very slow process. Easy, but tedious. Make sure you have other chores to do while waiting for the heating & cooling cycles.
09-04-2014, 04:38 PM
#17
Tech Contributor
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Actually, that's NOT true. The ECM will run the engine in closed loop mode (run 14.7 A/F) when the ECT gets above 120ish, depending on other conditions. It WON'T run rich with a 160, compared to a stock thermostat. It will, however allow more timing, hence more power, because the engine will not be as prone to knock. Now, a 160 won't get your engine to run any cooler in protracted stop and go traffic unless you reprogram your fan to come on at lower temps, but will allow you to run at/about 170-180 when at higher/freeeway speeds.
To the OP: You don't NEED to change the thermostat, but it won't hurt, and in some conditions, will help.
To the OP: You don't NEED to change the thermostat, but it won't hurt, and in some conditions, will help.
Bill
09-04-2014, 10:45 PM
#18
Le Mans Master
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09-05-2014, 12:46 AM
#19
Drifting
Actually, that's NOT true. The ECM will run the engine in closed loop mode (run 14.7 A/F) when the ECT gets above 120ish, depending on other conditions. It WON'T run rich with a 160, compared to a stock thermostat. It will, however allow more timing, hence more power, because the engine will not be as prone to knock. Now, a 160 won't get your engine to run any cooler in protracted stop and go traffic unless you reprogram your fan to come on at lower temps, but will allow you to run at/about 170-180 when at higher/freeeway speeds.
To the OP: You don't NEED to change the thermostat, but it won't hurt, and in some conditions, will help.
To the OP: You don't NEED to change the thermostat, but it won't hurt, and in some conditions, will help.
Great explanation and absolutely correct. After changing to a SLP 160* stat my cruising temp. is 174-180*, oil temp. is 210-218* with no other changes.
There is no difference in gas mileage.
Changed it out 3 years ago and completely satisfied with it.
Bob
09-05-2014, 12:58 AM
#20
Safety Car
Worst suggestion I've ever heard. No reason for a new T-Stat. If you are planning mods in the future a 160 wouldn't be a bad investment, but if you're just flushing? No need for a swap of any kind.
