Thread: 180 T-Stat

Originally Posted by Zef_66

I guess maybe I am not explaining myself well enough. I in no way think that coolant will cycle through the engine or radiator with the t-stat closed. I realize that it won't go through a closed t-stat. But, the coolant in the engine, during warm up, does not just sit there. It moves in the engine. Take a glass of warm water, put in ice. The water looks like it is sitting still. But the molecules are moving inside the glass. As the ice adsorbs heat and the water cools off, it will sink to the bottom. And the warmer water will raise to the top. Same thing happens in your engine. The water is not "sitting" in your engine. There is no "wall" of water at your water pump. Even with the t-stat closed, the water inside your engine is moving. Yes, not moving to the radiator. But by no means is it sitting there.

I am not disagreeing that a drilled t-stat may not be beneficial. I am sure it is. I personally don't have an opinion on that. But this entire thread is about the need to 180° stat, which I don't see one.

As for running without a t-stat, it has been proven that running without a t-stat will increase the surface temperature of your heads. The coolant is flowing too fast to transfer sufficient amount of heat from the heat, causing a substantial increase in cylinder head temperature. Your cooling system needs to be regulated to slow down the flow of coolant to increase the time the coolant is in contact with the cylinder head. This allows enough time for the heat to be transferred from the head to the coolant. Otherwise, the coolant is moving too fast for heat transfer to take place.

Again, I know there is no flow to the radiator when the t-stat is closed. But like I explained above, the coolant by no means sits in the engine. There is movement of the coolant due to the heating. And substantial movement inside the engine. But no, it doesn't flow to the radiator.

I see what you're saying, though I don't feel that's what will be happening in the engine. If it was one big tank, maybe, but it has crevices and turns that without the pump actually being able to create flow it won't do much good.

I think we're on the same page about the rest of it.

Originally Posted by TDCRacing

And I want to appoligize if i was offensive in any way to you zeff. Nothing wrong with a little debate.

Oh, no offense taken in anyway. I am a very easy guy to get along with. And I like a good debate as much as the next guy.

yes you can drill your own tstat. wish i would have but i wanted a lil colder so i went with a drilled 180 from zzp. just drill 1 or 2 holes in the tstat its self. i cant tell you the size but dont go larger then a pen tip size. if you feel uneasy about doing this just go out and buy one and a new gasket for 30 bucks