Calling all Track Race Cars only What do you run for coolant

[13COBRA]

#556202

Distilled Water and Water Wetter by Redline.

You shouldn’t, or probably shouldn’t be allowed on track with coolant in a racecar.

[Lawineer]

#556205

Ditto. It’s a disaster if you leak coolant on the track.

[Shannon Whitehead]

#556207

Distilled water with Water Wetter or other such additive to protect against corrosion. I’ve always used Water Wetter but I put Rislone Hy-Per Cool in last time I flushed the system. Seems to work fine. Not sure how long that stuff lasts so you may want to flush the system and renew the additive more often than a glycol mix. Keep an eye on your reservoir. If you have a gen4 (not sure if this applies to gen3/5’s) reservoir, it may look like it has enough water in it but the rear compartment can go dry while the front compartment still has water. I learned that lesson last fall after having a weird temp. spike issue during sustained G’s. Turns out I was low on coolant. I never wanted to completely fill the tank and thought if I saw water in front, that meant it was good. Not so.

[TKO MOTORSPORTS TEAM]

#556210

We use Pento-frost in Pirelli world challenge its required. Pento-frost has the great added bonus of being flammable. Pento-frost works well for cooling and we run it in street cars. Racing rules use to always be no synthetic coolant on track. Distilled water and water wetter for everything else we build or race….you cant go wrong.

[MO_Better]

#556255

TKO MOTORSPORTS TEAM said:
We use Pento-frost in Pirelli world challenge its required. Pento-frost has the great added bonus of being flammable. Pento-frost works well for cooling and we run it in street cars. Racing rules use to always be no synthetic coolant on track. Distilled water and water wetter for everything else we build or race….you cant go wrong.

Very good – sounds like its unanimous on Water Wetter! I’ve used it before in all my other race cars, but its been awhile so its good to know its still the weapon of choice!

But what’s with having to use Pento-Frost? That seems like a weird requirement that would be hard to enforce. Not that they haven’t done done some crazy things in the past – In the olden days when I ran world challenge, we had to run on fricken shaved street tires – not road race / street tires, but actual street tires, and not very good ones – that was a pain in the @ss and not much fun to race on – it did separate the men from the boys though…

[Shannon Whitehead]

#37294

Title says it all – what do you run for coolant at the track for your Track Car or Race Car? What products, what percentages, etc.

Thanks!

Mark

[Author]

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