K&S Racing...I believe we're an authorized vendor here on Protege Club (right Rod?) I need to see how many we have in stock and what colors are available right now.

 

Thus spake hughes412:
[/QUOTE]When it comes to heat the ideal is to cool the water, the cooler the water the cooler the engin. if the engin is cooler so will the air being pulled through the radiator.[QUOTE]

Uhm, no. The engine thermostat sets the engine operating temp [period]. Now, in an extreme situation when the radiator can't shed the heat from just the air passing over the fins (clogged/dirty, blocked fins, low coolant) - then a fan could help pull more air to improve cooling at idle. At above idle speeds - it is the air flowing through it as the vehicle moves.

Short Answer: It is the thermostat! Keep everything in working order and you won't need anything 'else' to keep the system working well.

Last point - cooler engine operating temps=better reliability but less performance. The best performance comes from running hotter - but at a cost in reliability.

engine hot good. Fuel warm good. intake air cold/dense good.

 

Uhm, no. The engine thermostat sets the engine operating temp [period]. QUOTE]


I agree with you, but the fan does not always run. It will switch on at a certain high temperature point (say 210 deg. F) and switch off at a certain low point (say 195 deg. F). After initial warm-up, the thermostat is open all the time. I was referring to the thermostatic switch (nothing more than a thermocouple in the cooling system, aka coolant temp sensor) and not the thermostat. Sorry for the confusion.

Anyhow, in order to keep the engine at or near its coolant temp target, there needs to be precise on/off control of the fan. My point simply was that changing the fan itself will not change the coolant temp, as the on/ off points will remain the same (and the system will try to maintain the same target temp). A more efficient fan will just not have to be on as frequently.

Sorry for any confusion I may have caused.

 

Ok, anytime I’m wrong and some one can prove it I am more than willing to learn!
But the hotter the engine the better just goes against all the reasons for adding better fans, lower thermostats, and so on. If you run hot you don’t combust as well, plus you start messing with the viscosity of the oil witch burns it up faster. Cooler the engine the better. I have been wrong before and am always willing to learn, so learn me somethin!

 

Oh, you're right...combustion will be better at lower temperatures, and there will be less stress on parts, less expansion of parts, so less rubbing, etc. However, if you run the engine too cool, you also mess with the viscosity, and other properties of the oil. You could develop sludge in the motor if it runs too cool (for instance, leaving the thermostat wide open when it's 40* outside...). Sludge ain't at all good for the motor, so there is some happy medium in there where you're at an optimum temperature, which is what you'd be looking for, but it's not "the colder the better."

 

if you find one in blue, i would be willing to buy it.

 

I'll have to check the inventory...we've been really busy with our other project *coughZX351cough* recently and the shipping clerk (ha!) hasn't been doing his job.

 

I have the green pro sedan lx, whats a good color (fan) to go with my car. This will also be the color of the strut bar!