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180 degree thermostat

fishslayer said:
Please show me a picture of all those dragsters without a radiator or coolant...I would love to see one that can run in the lanes, stage and do a pass without coolant.
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Some dedicated drag cars don't even have water pumps
 
Pretty much any race car running no coolant and no radiator is running on pure methanol to keep the engine temps reasonable.
 
What’s the 180 degree part number you guys are using?
 
I purchased the 180 from high horse performance. Have not installed yet as Im waiting for spring to do a coolant flush and tackle it. 10 degrees in Michigan right now, so not too worried about my engine temps and just too cold to work on it.
 
The other half of the performance tuning for full advantage of the 180 thermostat has shown up! Now just need the weather to break a little bit for the tstat swap and coolant flush!
 

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Got the diablo installed without any drama. Set the fans to 210 for now with the OEM stat. After the 180 goes in I'm thinking set the fan temp for 200. Should keep things at a better temp in the summer, towing, while idling etc. Looks like I can set fan temp on a separate scale for AC engaged at idle and driving. Maybe someone with a tuner and the 180tstat can share what settings you use.
 
A-TEAM said:
Got the diablo installed without any drama. Set the fans to 210 for now with the OEM stat. After the 180 goes in I'm thinking set the fan temp for 200. Should keep things at a better temp in the summer, towing, while idling etc. Looks like I can set fan temp on a separate scale for AC engaged at idle and driving. Maybe someone with a tuner and the 180tstat can share what settings you use.
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If you have a 180 thermostat for keeping engine colder(which is really not needed) you should set the fans to come on by at least 190. Your thermostat temp should be what your engine runs close to all the time.
 
My rationale for setting the fan temps to 200 is its +20* from the 180 tstat. The factory is +21* to turn on fans. 203>224. Im thinking this will keep peak efficiency when idling/ loaded up around 200*. When running unloaded ill be at 180ish which will improve performance since I can adjust the fuel map now as well.
 
A-TEAM said:
My rationale for setting the fan temps to 200 is its +20* from the 180 tstat. The factory is +21* to turn on fans. 203>224. Im thinking this will keep peak efficiency when idling/ loaded up around 200*. When running unloaded ill be at 180ish which will improve performance since I can adjust the fuel map now as well.
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Tuning these trucks is a lot more complicated. The fuel tables are part of the nueral network, and there are a lot of calculations within that.
 
Also noticed with 210 fan setting it never went above that today. Soon as the fans kicked on it went down to 190 pretty quick. Before with the factory setting they would kick on at 224-225 and bring it back to 200-205. So there seems to be about a 20* swing with the fans all else being equal. Setup a 91 octane and TCM tune while i was in there as well, and cleaned the throttle body out.

This trinity T2 allows changing the fuel tables on the fly, adding or subtracting fuel in low mid and high rpm. Need to study the logs better before messing with that.
 

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Well today is the day. Flushing the cooling system and installing the 180. Will report back with findings. Old thermostat basically fell apart so good preventative maintenance I suppose. 88k miles.
 

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Well done with the flush, new tstat in. Now pulling a vacuum to get all the air out and make sure the system is sealed. These systems have a ton of plumbing. I can hear air moaning and shifting the more vacuum i pull. Also just a note for anyone else doing this, always make sure the bleeder valve on the new tstat is at 12 oclock position when you reinstall.
 

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Well it’s in and working great! Temps average around 185 driving around now. Seems to actually run better and have more power at the lower temp. Going to reprogram my fans to come on at 200 now. Will report back after towing the camper with results.
 

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A-TEAM said:
Well it’s in and working great! Temps average around 185 driving around now. Seems to actually run better and have more power at the lower temp. Going to reprogram my fans to come on at 200 now. Will report back after towing the camper with results.
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My truck tows at a lower temp (on the straights at 63 mph) than it used to run unloaded. The 180 is a nice upgrade for sure.
 
Did you guys remove the active shutters also? Also, does anyone know are the shutters tied to the fan temp turn on programming?
 
A-TEAM said:
Did you guys remove the active shutters also? Also, does anyone know are the shutters tied to the fan temp turn on programming?
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I did, I just reached in with my hand and bent them a little and slipped them out. Left two rows near top and bottom to keep the structure intact and so the motor/electronics think it's doing something but there is a permanent whole in the middle of course.
 
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