it is getting close to overheating on the street. blasting the heat keeps things in check but this is just on the street. I have one day to prepare for a three day track weekend and I'm a little worried, my oil temp is also elevated for street driving. tonight I want out and got a large BM oil cooler. about 9x11. I know it is not the best core but it was only 80 bucks and I used it with great success on a previous street/track car and I never saw elevated oil temps. so for the water temp I'm thinking about removing the thermostat completely and going to drain the 30/70 mix and use water w/ water wetter. I can ---- with my ducting a bit but I dont have time to do anything that requires real fab. I was thinking about adding another fan.

what are your thoughts? suggestions, driving at 80 degree temps the car seems fine, I had it on the track and it was good, oil temps got a little high but not that bad really. now at 95 the car is back to getting really hot.

 

Are you in boost at all to get it overheating? Just driving around on the street out of boost, a functional stock cooling system will never overheat. Your signature shows a reroute so if your foot is out of it, so my advice is to identify the problem before you take the thermostat out or throw more parts at it - although an oil cooler is mandatory on a turbo track car IMO.

 

Cheap quick stuff:

1. Distilled water and water wetter. Big help

2. Paperclip between GND and...whatever that pin is that keeps the fan on. Any fan movement when idling will help.

3. If you remove the thermostat, you need to cut the guts out, not just remove it. Otherwise you'll loose water pressure.

All those will help, but if you're having issues overheating on the street, you're most likely screwed for the track. You need good ducting, that's the first thing you should have done.

 

hehe I was loosing water, somehow the rad cap was not on 100% and I was loosing water and pressure. I hope this is the issue.

now I'm running about 80/20 with water wetter so I hope I'm good. I added a massive oil cooler so I hope it works. if i still get hot I'm going to make a new line at the track and connect the 2 coolers. I'm leaving for the track now.

 

I have ducting and a under-tray

 

How did you burp your coolant system? You should pick up one of these to help you burp.

 

interesting, I just let it overflow and fill as needed.

 

I want you to jack up the front of the car as high as you can get it. Then take off the radiator cap turn on the car. Let it run until the fans tune on and then off 3 times. Keep topping off as needed. Then let the car cool down put the radiator cap back on.

 

well I will try it because I in traffic a still see the temp rise. the good news is that the new oil cooler core seems to yield lower temps. replaced my setrab 4x6 core with a B&M 9X11 core. running on the highway shows temps no greater than 210F.

still having trouble with the clutch master, going to replace it tomorrow

 

I was going to say your radiator core sounds like it has gunk built up in it, but your sig says you have a TrackSpeed radiator, and there are no TrackSpeed radiators in existence old enough to have gunk built up in them.

Do the NB ecu wiring mod to ground both fan relays together so that when the one kicks on they both kick on. That way both will kick on at 204F instead of the second fan waiting to kick on at 226F if memory serves correctly.

On a 99 I believe you want blue/white and red/green. On my '01 it's blue/white and red/yellow.

 

the track speed only has provisions for one fan. the car really only gets hot in traffic.

I'm happy to report that my car did pretty well on the track. it was super hot out and the track was in horrible condition. my cars could not run for long due to the heat. I was able to run the full sessions without getting too hot.

my car was running lean before when it got hot now after fixing some stuff it runs very rich and I'm getting flames out of my tail pipe so I need to keep at it. the car does not handle the way It should and the car suffers from pretty major heat soak. so I still have lots of work to do.

 

If you're overheating at idle you may want to burp the system further. Rover has a tiny little 8" eBay electric fan and it idles on the thermostat (195*F) in 100*F weather.