AWD Power Distribution?
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Cadillac ATS Technical Discussion Forum Discussion, AWD Power Distribution? in Cadillac ATS Discussion Forums; Tried finding this information with no luck. What is the distribution of power in the AWD ATS? i.e. is it ...
  1. #1
    tonio5555 is offline Cadillac Owners Member
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    AWD Power Distribution?

    Tried finding this information with no luck. What is the distribution of power in the AWD ATS? i.e. is it true 50/50 front rear? 70 rear 30 front? Is it adaptive?

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  3. #2
    RemaxAl's Avatar
    RemaxAl is online now Cadillac Owners Member
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    Re: AWD Power Distribution?

    No body knows? Not even GM? Asked the question before, all wheels move unless they don't. ~service adviser. I think he ment there was limited slip diffs?

  4. #3
    ben.gators is offline Cadillac Owners Connoisseur
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    Re: AWD Power Distribution?

    In my experience service advisers are among the least knowledgeable people that you can find in a dealership! You might have a better luck if you ask the same question from a technical who works in the dealership.

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    exbagboy's Avatar
    exbagboy is offline Cadillac Owners Fanatic
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    Re: AWD Power Distribution?

    I know that V2 CTS4 had a 25/75 split at steady driving from the thread below, confirmed by jjab4444, a GM engineer.

    I would ask him, however he hasn't been on here since March.

    Also by pulling a fuse you could make the CTS4 RWD 0/100 which is what some people do when it's not snowing to get better MPG.

    http://www.cadillacforums.com/forums...formation.html

  6. #5
    DavidATS is offline Cadillac Owners Fanatic
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    Re: AWD Power Distribution?

    Quote Originally Posted by exbagboy View Post

    Also by pulling a fuse you could make the CTS4 RWD 0/100 which is what some people do when it's not snowing to get better MPG.

    http://www.cadillacforums.com/forums...formation.html
    Not trying to get to far off topic but with the AWD and RWD being so close this seems like a waste of time.

    Also from your link -

    ^ RAB, as your friend at GM states, there will be negligible gains in terms of fuel economy "due to inertia and spin losses associated with the front driveline components". Even with the clutch pack "disengaged" the front drive system is still spinning. The front tires are still linked to the half shafts / differential / prop shaft, all of which is still spinning as you move. Remove the ~300lbs of AWD technology if you maybe want to see an improvement. 1-2mpg is only a savings of $250USD/year (15k miles, $4USD/gal gas).

    Here's an EPA comparison between 2011 3.6L AWD, 3.6L RWD auto, 3.0L RWD, 3.0L AWD. http://www.fueleconomy.gov/feg/Find....30389&id=30390 . As you can see, RWD and AWD are the same/close in terms of fuel economy.

    Just my opinion, but it really isn't worth the risk of drivetrain damage for $250/year. And no disrespect to your friend at GM, but the engineers at the Tier 1 supplier usually have more intimate knowledge of the systems they have to design/validate for the OEM.
    Also looks like EPA estimates are about $100 a year, since you wouldn't get rid of the complete system you are looking at savings of less than $100 per year.

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    btmasta is offline Cadillac Owners Member
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    Re: AWD Power Distribution?

    Quote Originally Posted by exbagboy View Post
    I know that V2 CTS4 had a 25/75 split at steady driving from the thread below, confirmed by jjab4444, a GM engineer.

    I would ask him, however he hasn't been on here since March.

    Also by pulling a fuse you could make the CTS4 RWD 0/100 which is what some people do when it's not snowing to get better MPG.

    http://www.cadillacforums.com/forums...formation.html
    As an engineer for the Tier 1 supplier of the ATS differentials I can confirm the bold.

    It's pretty apparent in the snow, lot's of rear end sliding for an AWD car.

    Also, this is generally referred to as torque distribution, not power. No big deal, we got it.
    Bertha D Blues and exbagboy like this.

  8. #7
    DaddysCaddy13 is offline Cadillac Owners Member
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    Re: AWD Power Distribution?

    on the cts it's 70/30 so I'm guessing it's the same for the ATS being the the CTS is based on the ATS platform but stretched

    Sent from AutoGuide.com Free App

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    Re: AWD Power Distribution?

    Well, the supplier of the ATS differentials confirmed it above at 25/75, rear biased split.

  10. #9
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    duneless is offline Cadillac Owners Enthusiast
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    Re: AWD Power Distribution?

    Does anyone know if there is a fuse for the ATS. I'M INTERESTED IN THIS.
    Quote Originally Posted by exbagboy View Post
    I know that V2 CTS4 had a 25/75 split at steady driving from the thread below, confirmed by jjab4444, a GM engineer.

    I would ask him, however he hasn't been on here since March.

    Also by pulling a fuse you could make the CTS4 RWD 0/100 which is what some people do when it's not snowing to get better MPG.

    http://www.cadillacforums.com/forums...formation.html
    exbagboy likes this.

  11. #10
    off1c3r is offline Cadillac Owners Fanatic
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    Re: AWD Power Distribution?

    I agree on 25/75. That's what I heard as well.

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