Hello,

What do you do for your track car to keep coolant temperature in normal level?

Somebody say thermostat delete, lower temperature fan switch etc......

I has did a full size radiator for my civic only. considering dose it need to do some more modification ?

 

Integra full size rad, (mishimotos work great, one or two fans. Mine are switched.
Normal temps are relevant to the weather and how hard you are driving.

 

If your thermostat is working there is no reason to delete it. It should open at 180 degrees and stay open. A full size radiator is the only "must" and then you may need to tweak from there.... ducting/sealing off the radiator inlet, fan(s), hood vents, etc.

I recently replaced my radiator after +10 years of service and several engines letting go in various ways. It was a hot event and I had just switched to a 5.1 FD... its on a new this season water pump and thermostat. At speed the fan switch wont matter, you will be pushing more air than the fan can move... and like Dirty, my fan is on a switch.

 

I'd say nothing is a MUST need for tracking a stock civic or teg, even with a swap. I've done half rads, full rads... when you're just starting you probably won't be pushing it that hard, and even if it does start to get hot, it'll likely take several laps, and then you can just do a cool down lap or two, then go at it again. I used to do this. Of course, once you get better, or if you engine is making a lot more power than stock, get at least a full width integra radiator. Full width aftermarket aluminum would be even better.

 

A good fan/shroud is a must to me, FAL makes a great setup. I would throw in a new OEM thermostat and call it a day, I've never understood the need for all the "fancy" low temp stuff. Basic maintenance and quality OEM parts will take a good beating.

 

I would disagree with this. A fan should only be needed if you're stopped- if you need it on track you've got an airflow problem.

 

yup. i want flow through on a race car and no shroud, control the air after it passes through.

I run a 6 inch fan in the bottom right corner of the rad to pull air through and cool the exhaust when in the pits/tech line. no over heating issues.

 

I agree, if you have a shroud and are having overheating issues at speed drill the shroud full of holes or cut out non-structural sections. It should help to provide more flow at speed and a better solution than no shroud and to let a fan rub against the cooling bars and lead to a potential rad failure.

 

Like I said, it's a personal preference to me, just trying to share personal experiences that have worked. I have actually run shroud/no shroud with success, it's just that currently I'm running with one as I've never tried one before. I always tend to change things that work just to experiment.

 

I'd take my fan off entirely if I knew I wouldn't have to sit still with the car running. But since we do sometimes, it stays.

 

Better to have it and not need it than to just cook your motor right?

 

Hence the "it stays" at the end.

 

I actually run an stock-sized OEM replacement radiator with an OEM thermostat and OEM fan switch on my race car. I do change the water frequently and replace it every few years to make sure that it is flowing freely and is free of any corrosion or blockages. I also run with an almost 100% distilled water setup in my cooling system with a bit of water wetter to aid with cooling.

Then again, I run in the Northeast and the Mid-Atlantic regions, and the weather is temperate here. We don't do track days in 110 deg weather like some of you guys out in SoCal and Texas.