I live in Phoenix, AZ and it is around *110 here during the day. My car will run at about 200 on the scanmaster, and about 180 on the gauge. With the A/C on, on the freeway, scanmaster shows about 205, and gauge shows about 200.

Now, here is the problem. In the city, stop and go, with the A/C on, the temps just rise and rise. Scanmaster showed 240 the other day and gauge showed a little above 210. I am running straight water in the system with a bottle of rust inhibitor. Cooling fans come on at *185.

I know that the scanner is showing the water pump sensor reading and that the gauge reading comes off the sensor in the head. I also know these engines were designed to run a little hot for emissions reasons. I want ot run cool. I would like to see a max of 205 on the scanmaster in stop and go with the A/C on. I run a stock waterpump and refuse to go electric. Running at the factory intended temp is not low enough for me, I want it to run cool.

Would some better electric fans do it? What CFM do the stock fans flow? What aftermarket fans are commonly used?

How about an aftermarket radiator? Which one?

 

I just use a 160 thermo and manual fan switch. Stays cool in the AZ heat!

 

160 thermo + fan programing by madwolf keeps me nice and cool no matter what. The CSI electric pump probably helps too.....

 

Would higher compression cause a car to run hotter? I'm just under 12:1. I have a Hypertech 160 stat in it.

Rans, what do you mean by running cool? What are your temps at in stop and go with the A/C on?

 

In stop and go traffic my temp never goes above the first line with a 160* therm. and madz28 early fan kick on, even in 95* wheather.

 

I might also go away with the straight water thing . you hot guys in arizona may not know but antifreeze is kind of the wrong thing to call it. it actually does keep cars from running too hot and not just so it will not freeze. it has a higher boiling point than water and also takes longer to reach its boiling point than water. in other words water will get hotter quicker than a 50/50 mix of water and antifreeze. might help you.

 

try some of that water wetter awesome stuff

 

Get Evans coolant(search on line) and follow their instructions.
Yes higher comp will heat a tad more but not serious with 12/1.And get those fans on earlier.

 

Make sure your fans are working properly.
Check for any debris blockage in front of the A/C condensor and radiator.
Wash away any dirt/grime from radiator/condensor.
Add a pusher fan in front of the A/C condensor to get more air
flowing thru the radiator.

Emil:93Z,383,Vortech,NOS

 

I have been researching the Evans for quite some time. It seems that it will basically allow your engine to run hotter without damage or boiling over by eliminating hot spots in the cylinder head. The reading at my temp sensor isn't gonna change much, if at all.

Here is an article where they test cooling system improvements, including the EVANS NPG.

---http://www.4wheeloffroad.com/techarticles/46358/index.html

NOTE-By switching from a water/antifreeze mix to straight water, they saw lower operating temps. I have stopped the all water mix from destroying my engine by running a bottle of rust inhibitor.

 

cars dont have straight water in them from the factory nor are they intended to. one other thing is i have found that if you have a braw on the car in stop and go traffic they Or atleast my car tends to run alittle warmer but defintly not 2 warm also you want to make sure you dont have any air in the system

 

Evans has a super duper NPG now and if ya want the studys go to their site and a study is posted and not done by them.
I will guarantee ya one thing it works.The coolant temp may show warmer(means it's taking heat to the rad) but the engine is sure cooler.Ya also have to have the right size rad and flow capacity--talk to Dave he will let ya know what they recommend.

 

also a big thing that iv'e learned from others on this site is that little 27 dollar air deflector under the car plays a big part in cooling. if its broken or missing get a new one it does help and will keep it from running too hot.