782 messages,
Last post on Feb 25, 2009 at 1:24 PM
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Honda CR-V Forum.
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Honda CR-V, Toyota RAV4, Subaru Forester, SUV
#775 of 782 Re: [blueiedgod]
by rfrf
Feb 20, 2009 (11:26 am)
You make just the point. Whether the driver feels it is safe or necessary or of benefit to have 4WD engage at speeds above 25 mph, any (potential) driver of the vehicle wd want the info before committing much cash to the purchase of a vehicle that either: a. does or does not have a feature he feels is necessary or b. has or does not have a feature which he feels is unsafe ... which he also wd not be able to disengage.
T is a great company and makes great cars ... certyainly among the best ... but T knows whether 4WD engages in Auto mode at speeds above 25 mph or not and T chose to repond (at first, and in the manner they did) and then chose to not respond ... leaving the inquiry open.
#776 of 782 Re: [blueiedgod]
by rsholland
Feb 20, 2009 (12:14 pm)
Subaru, Audi and others that use full-time AWD would disagree with you on this point. Their position is that AWD can be benefit in terms of performance (accelerating, cornering, etc.), as well as a safety issue under all driving (and all weather) conditions.
While it can be argued as to whether AWD aids maximum performance, it certainly makes going "fast" easier and safer. For example I've read several articles in which the writers have said that an AWD Porsche 911 is easier to drive at speed, as compared to the a RWD 911. While the RWD 911 may ultimately be faster, the AWD version is still very fast and is much easier to control at speed.
Also take note that some of the world's fastest cars (Porsche 911 Turbo, Nissan GT-R, Bugatti Veyron, etc.) all employ full-time AWD. Now granted, those cars are in a much different league, but the point is the "performance" benefits of full-time AWD do trickle down to more mundane vehicles as well.
Bob
#777 of 782 Re: [rfrf]
by rfrf
Feb 20, 2009 (1:05 pm)
Just like magic! Since my last post (#775 of 776 Re: [blueiedgod] by rfrf Feb 20, 2009 (10:26 am), I received the following from T:
"Yes, at speeds above 25 mph the Electronic on-demand full-time 4WD will transmit drive torque to the real wheel if the system senses slippage to the front wheels."
I guess the T rep must have needed some time to check specs ... or someone in T management must be an Edmunds forum reader!
#778 of 782 Re: [rsholland]
by rengaw
Feb 20, 2009 (9:57 pm)
Yes, Bob, I didn't explain that correctly. I meant to say that once over 25 mph the system reverted to front wheel drive with the automatic ability bring the rear wheels into play if sensing slipping.
Feb 23, 2009 (11:23 am)
Whenever the brakes are applied in “Auto” or ”Lock” mode, 4WD is cancelled to optimize the benefits of ABS and enhanced Vehicle Stability Control (VSC).
Sounds very part-time-ish to me.
Just like Hyundai.
Feb 25, 2009 (10:31 am)
Also take note that some of the world's fastest cars (Porsche 911 Turbo, Nissan GT-R, Bugatti Veyron, etc.) all employ full-time AWD. Now granted, those cars are in a much different league, but the point is the "performance" benefits of full-time AWD do trickle down to more mundane vehicles as well.
Those vehicles are primarily RWD, or the AWD unit favors RWD unless there is complete slippage, even then, I don't think they send more than 50% to the front.
Toyota, Audi, Honda, Hyundai.... are primarily FWD vehicles.
The addition of power to he front wheels in a RWD vehicle yields advantage, than addition of power to the rear wheels in a FWD vehicle.
#781 of 782 Re: [blueiedgod]
by oregonboy
Feb 25, 2009 (11:33 am)
The addition of power to he front wheels in a RWD vehicle yields (greater?) advantage, than addition of power to the rear wheels in a FWD vehicle.
For every rule there is an exception. May I nominate the WRX STi and/or Mitsubishi Evo?
#782 of 782 Re: [blueiedgod]
by rsholland
Feb 25, 2009 (1:24 pm)
They're all full-time AWD, with a RWD bias, usually around 30/70 - 40/60, front/rear. That F/R bias may shift, depending on driving conditions.
Bob