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06-08-2023, 09:14 PM
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#1 |
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Registered User
Join Date: Mar 2020
Location: The Woodlands,Tx
Posts: 588
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thermostat temp
my engine is running at 181. my mechanic thinks we need to increase the temp to run more efficiently.
2002 trans am ls1 fully stock. looking for a higher temp thermo . seems the stock is 160 and I can't find anything over 180. He thinks we need 195. It appears my themo is a one piece unit. Does anyone sell a 195 . I can't seem to find one. Not sure what I currently have in there. I assume 160 just because I replaced at swap time with a ac Delco. |
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06-08-2023, 11:24 PM
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#2 |
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Post Whore
  
Join Date: May 2015
Location: Alabama
Posts: 14,670
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Re: thermostat temp
the general put 160s in there..so id be good with that..
i did some digging and theres much disussion out there about the LS1 160deg thermostats.. my LQ9 has a 165deg in it..it came that way from factory.. my fans kick on at 175 and 185 truck runs 185 all day long no matter how hot outside air is or how heavy ofa trailer im pulling
__________________
Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
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06-09-2023, 08:17 AM
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#3 |
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Registered User
Join Date: Sep 2020
Location: Cleveland, Ohio
Posts: 553
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Re: thermostat temp
A bunch of places sell the 187 thermostat, which seems to be the standard one. Everybody shows a 160 thermostat, but they kind of list it as an option. The lower thermostat would probably make it run a little richer if the engine was designed for the 187.
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06-09-2023, 08:56 AM
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#4 |
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Senior Member
Join Date: Nov 2013
Location: East Tennessee
Posts: 2,198
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Re: thermostat temp
From the limited knowledge I have about the LS platform, the way I understand it, they perform better at a higher temperature.
I do know that, looking at the factory fan settings on my LS1 (stock thermostat I assume), they were set to come on at 226º which seems a little high (to me). I adjusted mine for 195º and 205º (fan1, fan2) I bought the Entropy LS swap radiator and when I was test running it, fan 1 came on at 195º so I know it's getting to that tempº (at least at an idle) it will be a while before it gets on the road but I'm anxious to see how it behaves then.
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1967 C10 Step side 1968 C10 Step side 1970 Chevrolet K/5 Blazer 1972 Chevrolet K/5 Blazer ............. 
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06-09-2023, 09:29 AM
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#5 |
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Registered User
Join Date: Feb 2016
Location: Hebron
Posts: 1,153
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Re: thermostat temp
before you invest in another thermostat invest in a digital temperature gun, you can then be assured that the temperature gauge is close or accurate. You can buy these all over for under $25.00
__________________
 RUBBER DOWN AND HIT THE ROAD!!!1940 Ford Dlx Coupe 1969 Mach1 |
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06-09-2023, 09:50 AM
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#6 |
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Registered User
Join Date: Mar 2020
Location: The Woodlands,Tx
Posts: 588
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Re: thermostat temp
i got the temp reading from a snap on pcm computer readout that my mechanic scanned with.
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06-09-2023, 12:53 PM
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#7 |
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Senior Member
Join Date: Aug 2004
Location: Centennial, CO
Posts: 2,987
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Re: thermostat temp
187 is standard, put that in.
__________________
ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ |
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