Circuit Racing the Interchiller

[GenF-GTS]

Just had a workshop call me, they took a VF GTS to Eastern Creek circuit racing last week car makes over 500rwkw, running 15psi of boost spinning the living hell out of the blower.

They retained the factory heat exchanger combined with the chiller and our 6.5L reservoir and our LSA lid spacer.

Intake temps did not go any higher than 28-35c


This is the first collected data I have been provided from a workshop using the car for circuit racing.

[NZ EVLHSV]

Good result

Have you send any chillers or lid spacers to NZ?

[GenF-GTS]

Good result

Have you send any chillers or lid spacers to NZ?

Yeah I've sent a few over there

[NZ EVLHSV]

Yeah I've sent a few over there

Do you know what shops installed and tuned the cars?


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[GenF-GTS]

Do you know what shops installed and tuned the cars?


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No idea sorry, most of the time customers order it and then get their mechanic to fit and tune it.

[OldMateGTS]

Very nice, I shall feel confident driving the ever loving piss out of mine when I get back to Oz next month :P

To be fair, it would be rather cool at eastern creek atm.

Somebody needs to cut a few hard laps in summer, I bet it wont be much different.

[GenF-GTS]

Very nice, I shall feel confident driving the ever loving piss out of mine when I get back to Oz next month :P

To be fair, it would be rather cool at eastern creek atm.

Somebody needs to cut a few hard laps in summer, I bet it wont be much different.

99% of installs we tell people to stick to street/drags so depending on the workshop we usually tell them to delete the front heat exchanger from the fluid loop, you would need to plumb it back in if it has been removed.

Again I still HIGHLY disagree with superchargers being used for circuit racing.

[Surfnturf]

Have been thinking a lot about circuit racing and using the chiller to lower temperatures especially the Oil.
Guys over on the Camaro forums experience upwards of 300F (150 C) for oil temperatures when on the track for 10-20 minutes
They are using additional oil coolers as well as using different type of chiller systems to try and reduce those extreme numbers
Synthetic oils can still offer good protection at 300F but I just dont like it at that level
Guys are using the Mishimoto Oil Coolers with good results
My question is ??
What if the compressor in the A/C system was set up to run constantly and the A/C was running all the time while on the track ?
I know they are designed to stop engaging at 80% and above throttle but what if we used an electric type if we couldn't get around the 80% hurdle?
Im sure the chiller would reduce temperatures but by how much is the big question,,,,, Any thoughts guys ?????

[GenF-GTS]

If you’re talking about using the chiller to reduce your oil temps eg refrigerant exchanging energy with hot oil, you will break down the refrigerant if you don’t cook the AC compressor first.

The compressor must switch off at WOT if it stays on it will grenade the compressor.

Yes an electric compressor “may” help during a circuit race for intake temps.

You really do need a good oil cooler for circuit via a front mounted cooler.