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Cadillac ATS Technical Discussion Forum Discussion, 2.0 t heat in Cadillac ATS Discussion Forums; Hey Folks! Just wondering about the heat on the little turbo 4. The car runs good, temp seems to be ...
  1. #1
    RemaxAl's Avatar
    RemaxAl is offline Cadillac Owners Member
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    2.0 t heat

    Hey Folks! Just wondering about the heat on the little turbo 4. The car runs good, temp seems to be normal according to the heat gage but you could cook an egg on the hood. I drove the ATS home from work, it was parked in my garage,went out to grab a pint out of the fridge in the garage an hour later. I put my hand on the hood it was still tropical. Normal?

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    EnvoyBu's Avatar
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    Re: 2.0 t heat

    Quote Originally Posted by RemaxAl View Post
    Hey Folks! Just wondering about the heat on the little turbo 4. The car runs good, temp seems to be normal according to the heat gage but you could cook an egg on the hood. I drove the ATS home from work, it was parked in my garage,went out to grab a pint out of the fridge in the garage an hour later. I put my hand on the hood it was still tropical. Normal?
    What was the temperature and cloud amount (partly, very, clear, etc.) outside and what color ATS do you have?

    Darker Colors + Bright Sun + High Temperatures = Hot Hood (and car).

    What kind of pint did you grab?

  4. #3
    Bertha D Blues is offline Cadillac Owners Fanatic
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    Re: 2.0 t heat

    I’m always mindful of the heat that passes through the turbo and plan for its cool down before shutting off the engine. My normal commute allows slow easy driving for the last mile or so that lets the turbo cool. But one day, I was turning into my driveway and decided to see how fast I could go before shutting down and hitting the garage door. (My driveway is almost 300 yards long so I’m not a total nutcase, am I?) After closing the garage door while not allowing a sufficient cool down time, I could smell something cooking. I suspected that it was something near the turbo. I didn’t touch the hood as you did but I restarted the car and let it idle in the driveway for a while to cool off.

    For what it’s worth I managed to reach 52 mph before braking. That was a little disappointing. My 4,400-lb Thunderbird with Cruise-O-Matic and its secondaries disconnected hit 55. And, I had to lift sooner in the T-bird because of its drum brakes. Bert

  5. #4
    mikesul is offline Cadillac Owners Enthusiast
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    Re: 2.0 t heat

    I have noticed that all turbo engined cars are very hot under the hood. I really would like a vented C-F hood for my ATS as I plan to develop much more HP and that will mean even more heat under the hood.

  6. #5
    M5eater's Avatar
    M5eater is offline Cadillac Owners Connoisseur
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    Re: 2.0 t heat

    Quote Originally Posted by mikesul View Post
    I have noticed that all turbo engined cars are very hot under the hood. I really would like a vented C-F hood for my ATS as I plan to develop much more HP and that will mean even more heat under the hood.
    D/I engines run a fair bit more hot in the cylinder head. That's because with D/I there's no fuel spray to cool down the intake valves in the cylinder. Which then contributes to carbon buildup of course.

    I almost started to remove the engine cover but, I have mixed thoughts given there's then nothing to prevent the heat from going straight to the paint. It's not a bland sheet of plastic at least, and the LTG's valve cover is a nest of cooler and PCV passages anyway.

    instead I switched to synthetic motor oil. I still really wish there was an oil temp gauge in the DIC.

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    Bertha D Blues is offline Cadillac Owners Fanatic
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    Re: 2.0 t heat

    Quote Originally Posted by M5eater View Post
    I still really wish there was an oil temp gauge in the DIC.
    I agree. Torque Pro has an oil temperature display option but I've never tried it so I don't know if that specific data is available. Even if it is, it's not as convenient as the DIC. Bert

  8. #7
    M5eater's Avatar
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    Re: 2.0 t heat

    Quote Originally Posted by Bertha D Blues View Post
    I agree. Torque Pro has an oil temperature display option but I've never tried it so I don't know if that specific data is available. Even if it is, it's not as convenient as the DIC. Bert
    what gives me hope is CUE and Gm releasing SDK's for this thing.

    IE, how about an app that displaces all kind of hidden ECU information, ie a built-in data logger?
    Bertha D Blues likes this.

  9. #8
    roadpie4u is online now Cadillac Owners Fanatic
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    Re: 2.0 t heat

    Most (if not all) sensor parameters should be available on the J1939 bus which the dash uses to begin with. The only reason we don't have "digital gauges" in the DIC (which the press cars had a digital option to show boost, btw) is because it isn't enabled in the software. If we push GM hard enough, hopefully they'll enable those options.
    M5eater likes this.

  10. #9
    mikesul is offline Cadillac Owners Enthusiast
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    Re: 2.0 t heat

    Oil temp and pressure, and boost would be great displayed on the CUE screen. IAT's would be nice also.

  11. #10
    M5eater's Avatar
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    Re: 2.0 t heat

    Just going to add this here.

    the heat generated was enough to melt a very small portion of the insulation under the engine cover.

    I think I'll use my temp probe to see if there's really a significant difference with it on and off.

  12. #11
    RemaxAl's Avatar
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    Thread Starter

    Re: 2.0 t heat

    I'm a silver coast metallic ATS. Just checking to see if is normal. Not familiar with gas turbo engines.

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