C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

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Old May 11, 2021 | 10:22 PM
  #141  
Alejandro Guerrero's Avatar
Alejandro Guerrero
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I messed with some cables and it seemed to run fine the 20 miles to the exhaust shop

On the last portion of the trip my temps got up to 239 on the highway before cooling down when I got off the exit shortly after. I know these cars run hot but given my recent overheat it still had me a bit worried.

I'm not so much worried about daily driving but if I ever track it or in not summer days considering today was kind of cool.

What's the most cost effective way to make the car run a little cooler, hoping to keep it no hotter than 230? Would it be just having the fans come on earlier? I have the adld cable and the free tuning program, should I be able to figure out just fiddling around or is it more complex than that?
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Old May 12, 2021 | 12:54 AM
  #142  
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Originally Posted by Alejandro Guerrero
I messed with some cables and it seemed to run fine the 20 miles to the exhaust shop

On the last portion of the trip my temps got up to 239 on the highway before cooling down when I got off the exit shortly after. I know these cars run hot but given my recent overheat it still had me a bit worried.

I'm not so much worried about daily driving but if I ever track it or in not summer days considering today was kind of cool.

What's the most cost effective way to make the car run a little cooler, hoping to keep it no hotter than 230? Would it be just having the fans come on earlier? I have the adld cable and the free tuning program, should I be able to figure out just fiddling around or is it more complex than that?
239 isnt normal even for c4. Gotta figure out whats happening there. Top temp should be ~230.

Both fans currently working?

As far as keeping the engine cooler. 160 deg thermostat and fans on at 200 deg, off at 190 works well for me. Cruising on the freeway temps are 170. Then when you stop moving temp creeps up to 200, fans kick on, takes me back to 190 and it will continue to cycle that way. Electric water pump is a good mod too.
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Old May 12, 2021 | 04:13 AM
  #143  
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Alejandro Guerrero
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Originally Posted by AgentEran
239 isnt normal even for c4. Gotta figure out whats happening there. Top temp should be ~230.

Both fans currently working?

As far as keeping the engine cooler. 160 deg thermostat and fans on at 200 deg, off at 190 works well for me. Cruising on the freeway temps are 170. Then when you stop moving temp creeps up to 200, fans kick on, takes me back to 190 and it will continue to cycle that way. Electric water pump is a good mod too.
I need to bleed the coolant, I remember I never did it after the first.overheat and only did it once between the first flush and that. I cleaned the radiator when it was out but it did have a moderate amount of the find being kind of dinged up. Already got the heavy duty mezziers electric water pump. I'm going to try bleeding the coolant before leaving the shop today and see how it goes on the way home. Going to hopefully find a write up or something on changing fan turn on as well though probably won't do that till I get it back incase I mess something up.
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Old May 12, 2021 | 09:50 AM
  #144  
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Found this in my Bin which leads me to believe fan speed is not the issue. Will try bleeding coolant and hopefully that will fix it.


Last edited by Alejandro Guerrero; May 12, 2021 at 09:51 AM.
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