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  1. #1
    Join Date
    Feb 2014
    Posts
    4,866

    Circuit Racing the Interchiller

    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.

    2014 HSV GenF-GTS fitted with a Forced Induction Interchiller
    2017 HSV GTSR
    http://www.facebook.com/ForcedInductionInterchillers
    Australia's outright Fastest 6.2L 1900 LSA VF GTS & Fastest stock bottom end
    9.700 @145.22mph 21/June/2017
    V-Box Results 0-100km/h in 2.47sec

    Looking for colder IAT’s? we’ve achieved 11c IAT2 on a 41c day and -8c during winter.
    We have proven cabin AC vent temps are better than GM spec, both IAT2's and vent temps are all on video with nothing to hide.

  2. #2
    Join Date
    May 2016
    Location
    Auckland, New Zealand
    Posts
    1,015
    Good result

    Have you send any chillers or lid spacers to NZ?
    2014 Gen-F GTS
    2017 VF2 SS-V Redline Hackwagon

  3. #3
    Join Date
    Feb 2014
    Posts
    4,866
    Quote Originally Posted by NZ EVLHSV View Post
    Good result

    Have you send any chillers or lid spacers to NZ?
    Yeah I've sent a few over there

    2014 HSV GenF-GTS fitted with a Forced Induction Interchiller
    2017 HSV GTSR
    http://www.facebook.com/ForcedInductionInterchillers
    Australia's outright Fastest 6.2L 1900 LSA VF GTS & Fastest stock bottom end
    9.700 @145.22mph 21/June/2017
    V-Box Results 0-100km/h in 2.47sec

    Looking for colder IAT’s? we’ve achieved 11c IAT2 on a 41c day and -8c during winter.
    We have proven cabin AC vent temps are better than GM spec, both IAT2's and vent temps are all on video with nothing to hide.

  4. #4
    Join Date
    May 2016
    Location
    Auckland, New Zealand
    Posts
    1,015
    Quote Originally Posted by GenF-GTS View Post
    Yeah I've sent a few over there
    Do you know what shops installed and tuned the cars?


    Sent from my iPhone using Tapatalk
    2014 Gen-F GTS
    2017 VF2 SS-V Redline Hackwagon

  5. #5
    Join Date
    Feb 2014
    Posts
    4,866
    Quote Originally Posted by NZ EVLHSV View Post
    Do you know what shops installed and tuned the cars?


    Sent from my iPhone using Tapatalk
    No idea sorry, most of the time customers order it and then get their mechanic to fit and tune it.

    2014 HSV GenF-GTS fitted with a Forced Induction Interchiller
    2017 HSV GTSR
    http://www.facebook.com/ForcedInductionInterchillers
    Australia's outright Fastest 6.2L 1900 LSA VF GTS & Fastest stock bottom end
    9.700 @145.22mph 21/June/2017
    V-Box Results 0-100km/h in 2.47sec

    Looking for colder IAT’s? we’ve achieved 11c IAT2 on a 41c day and -8c during winter.
    We have proven cabin AC vent temps are better than GM spec, both IAT2's and vent temps are all on video with nothing to hide.

  6. #6
    Join Date
    Dec 2016
    Posts
    118
    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.

  7. #7
    Join Date
    Feb 2014
    Posts
    4,866
    Quote Originally Posted by OldMateGTS View Post
    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.

    2014 HSV GenF-GTS fitted with a Forced Induction Interchiller
    2017 HSV GTSR
    http://www.facebook.com/ForcedInductionInterchillers
    Australia's outright Fastest 6.2L 1900 LSA VF GTS & Fastest stock bottom end
    9.700 @145.22mph 21/June/2017
    V-Box Results 0-100km/h in 2.47sec

    Looking for colder IAT’s? we’ve achieved 11c IAT2 on a 41c day and -8c during winter.
    We have proven cabin AC vent temps are better than GM spec, both IAT2's and vent temps are all on video with nothing to hide.

  8. #8
    Join Date
    May 2010
    Posts
    330
    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 ?????

  9. #9
    Join Date
    Feb 2014
    Posts
    4,866
    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.

    2014 HSV GenF-GTS fitted with a Forced Induction Interchiller
    2017 HSV GTSR
    http://www.facebook.com/ForcedInductionInterchillers
    Australia's outright Fastest 6.2L 1900 LSA VF GTS & Fastest stock bottom end
    9.700 @145.22mph 21/June/2017
    V-Box Results 0-100km/h in 2.47sec

    Looking for colder IAT’s? we’ve achieved 11c IAT2 on a 41c day and -8c during winter.
    We have proven cabin AC vent temps are better than GM spec, both IAT2's and vent temps are all on video with nothing to hide.







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