- #1002 of 1249
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Re: Pulling [spektre]
by manmountain
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Jan 30, 2007 (7:10 am)
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Replying to: spektre (Jan 29, 2007 11:32 am)
Thanks, everyone, that is good to know. I notice that the material on the MDX describes the steering as being variable torque (or something like that). Does anyone know if that means it's potentially adjustable, eg, could the dealer adjust for more boost?
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- #1003 of 1249
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Re: Pulling [kentbrockman37]
by barb36jack31
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Feb 06, 2007 (6:09 am)
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Replying to: kentbrockman37 (Jan 25, 2007 2:12 pm)
I test drove a 2007 MDX with the 19" wheels and it rode quite rough and pulled to the right. I purchased an MDX with the standard wheels and it rides smoothly and no pull in either direction. Gas mileage registered 20.4 on the 100 mile trip from dealer to home. It has now settled to about 18MPG here in the Orlando, FL area. Am very pleased with the car.
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- #1004 of 1249
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Re: Pulling [manmountain]
by robertsmx
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Feb 06, 2007 (8:36 am)
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Replying to: manmountain (Jan 30, 2007 7:10 am)
Speed sensitive power steering adjusts boost depending on speed. I don't think your dealer can adjust the boost.
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- #1005 of 1249
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Re: Pulling [robertsmx]
by varmint
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Feb 06, 2007 (10:30 am)
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Replying to: robertsmx (Feb 06, 2007 8:36 am)
With the MDX, the steering is actually torque-sensing rather than speed-sensing. Torque-sensing works off of the engine rpm, rather than the vehicle speed.
End result is more or less the same. And I agree that a dealer isn't likely to mess with it.
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- #1006 of 1249
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Re: Pulling [varmint]
by robertsmx
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Feb 06, 2007 (1:38 pm)
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Replying to: varmint (Feb 06, 2007 10:30 am)
I thought torque-sensing was more of a function of the DBW system, as opposed to power steering system itself.
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- #1007 of 1249
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Re: Pulling [robertsmx]
by varmint
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Feb 07, 2007 (10:13 am)
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Replying to: robertsmx (Feb 06, 2007 1:38 pm)
Not quite sure what you meant when you wrote, "a function of the DBW system". Are you suggesting the term torque-sensing steering refers to manipulating the throttle rather than the steering? That would be incorrect.
In don't have a link handy, so read up on the 2nd gen TL and TL-S. The base model used a speed-sensing design, while the Type S got torque-sensing. With a little digging, you may find a better explanation of the difference between the two designs.
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- #1008 of 1249
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Re: Pulling [barb36jack31]
by koho955
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Feb 07, 2007 (11:40 am)
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Replying to: barb36jack31 (Feb 06, 2007 6:09 am)
I agree with you about the tires. I have the base model MDX with the Goodyear tires on it. The steering at highway speed is horrible and a ton of work not to mention a rough ride all the time. I just had a dealer loaner for 2 days that was loaded with the Michelin tires on it. What a difference! Great steering and a much smoother ride. I can't beleive that Acura put the Goodyear tires on their cars to save $25 per tire. AMAZING TO SAY THE LEAST!
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- #1009 of 1249
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Re: Pulling [varmint]
by robertsmx
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Feb 07, 2007 (2:11 pm)
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Replying to: varmint (Feb 07, 2007 10:13 am)
I tried finding out information on torque-sensing part of variable assist steering but most of the returns were related to patents. TL (including base) apparently has torque-sensing variable assist steering as does MDX. But no details on how it helps. RL uses speed sensing variable assist system.
Regardless, it is highly unlikely that people looking to reduce assist at lower speeds will get any help at dealerships. It’s a part of the design (greater assist at lower speeds, and reduced assist at high speeds).
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- #1010 of 1249
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Re: Pulling [robertsmx]
by varmint
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Feb 08, 2007 (7:12 am)
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Replying to: robertsmx (Feb 07, 2007 2:11 pm)
Yes, the current TL and TL-S both use torque-sensing. It was the second generation of the TL that used speed-sensing on the base models. In 2002, the TL-S got torque-sensing, while the base remained speed-sensing.
Unfortunately, Acura's media site doesn't provide much detail. This is all that has to say on the subject.
The 3.2 TL features a speed-sensitive, variable power assist system designed to complement the model's handling characteristics.
By varying the amount of power assist according to vehicle speed, the system provides light steering effort during low-speed parking maneuvers and, as vehicle speed builds, progressively heavier steering effort for a positive and secure feel.
The TL Type-S is equipped with an exclusive sport-tuned, power steering system (similar to the CL Type-S). The Type-S uses a torque-sensing rotary valve steering gear that varies the amount of assist according to steering input and the resultant torque generated between the pavement and tire. The system also varies assist based on engine speed, helping make steering light in parking maneuvers and heavier as speed increases for enhanced road feel.
Might be a good question for Shawn.
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- #1011 of 1249
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Anyone had the old model and now has the new one?
by nickel
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Feb 14, 2007 (10:49 am)
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Because I want to know the difference in light offroading without the Differential Lock button that the old model had. Is the new one as adaptable like the old one?
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