I personally don't find it an upgrade at all, but a downgrade. Reducing cooling system temperatures has a lot of drawbacks with a street driven car. A race car is a whole different story. Reducing cooling system temperatures will increase engine warm up times, resulting in greater fuel dilution of the oil, which reduces both oil and engine longevity. This will also cause a decrease in fuel economy and an increase in emissions as well. I think a far more effective method of reducing engine operating temperatures is by using a good synthetic oil, which can reduce engine operating temperatures up to 50 deg. F., without affecting cooling system temperatures.I saw that a lot of people have a 180 degree thermostat upgrade. What kind of performance advantages does this have? Also any recommended companies? Thanks in advance.
Exactly. They have such strict laws now wit emissions and the cars have to to be able to run in all climates not just Hot places. Same reasons they use their filter and not CAI from factory and alot of other little things.No...but they were probably not trying to get the best performance in a warm climate but the best emissions overall.
the dyno has shown 7hp to 10hp gains on the 5.7 hemi. this is the best bang for the buck. 10hp for $4. nothing compares.
ask those with the fastest hemis as see what they say. when the engine temps go over 190*, performance falls off.
I 100% agree with everything you just said. I too have some engineering background and have been racing since the 80's. One thing I can't do though is reprogram a computer, so if I can run the engine a little cooler to keep the computer from killing horsepower, seems like an easy fix. I don't think we are running them cold enough to hurt combustion efficiency much if at all. If we were running 160 degree stats in these things I would be worried.
I hope you are not taking my posts as butting heads, I really like technical discussions. This is how we all learn something new. And believe me I am still learning. I do not bring up my engineering background to impress anyone. I mearly bring it up to let you know that I understand the points you are making so that we can continue our discussion. And I certainly am not single minded enough to think that my theory is bulletproof. I welcome anyone to blow holes in it so that we all can learn. I have an itch for anything automotive technical related that I can't seem to scratch.
It's lowers the engines temperature to prevent heat soak. When temps are higher, the computer pulls timing to prevent detonation. Jet makes a great t-stat that can be purchased from one of our vendors.