Last post on Nov 05, 2013 at 12:08 PM
You are in the Acura RL
What is this discussion about?
Acura RL, Sedan
#2839 of 7386 Re: 2005 Acura RL Tire Size & Cost / Powertrain Warranty [legendman #1393]
Jun 19, 2004 (7:13 am)
I had exactly these tires in exactly this size on my 2003 Audi allroad -- the tires 19,000 miles were so noisy that my Bose audio system could hardly compete. I had purchased the tires on day one of ownership of my then brand new Audi. These tires are underwhelming in EVERY sense of the word, beyond 15,000 miles -- and yes they cost, ON LINE $820 plus shipping plus mounting and balancing. Hopefully Acrua will
#1 go with 18" rims
#2 go with a tire size that permits some consumer choice, for, if they offer Summer only tires, it needs to be stated that only the very lucky will get 20,000 miles out of UHP or MAX performance Summer tires.
#2a Hopefully there will be an A/S option (UHP) and a Summer option (UPH or MAX) with choices from the big names and the second tier names (I have used Yokohama, Falken and Cooper tires -- UHP Z or higher rated -- with great results and somewhat lower prices).
#2840 of 7386 Re: #Post 1397 [dcwong1 #1398]
Jun 19, 2004 (7:40 am)
The torque split, according to published (but not from Acura) reports is initially 90% front 10% rear. It is variable from front to rear (and SH AWD can even direct an extra 5% torque to the outside rear wheel when cornering). The current AWD bashers -- and boy there sure are a lot of them -- point out (with merit) that RWD biased AWD offers "the best of RWD and the best of AWD" but that AWD that is wildly FWD biased (such as the Acrua and Volvo systems appear to be) is only "posing" at the high performance AWD game. Audi, long an AWD leader has begrudgingly stated its intention to address the RWD AWD camp in the following way (Audi's bias is, at this point in history, a 50% 50% split): move the front wheels foward, improving the weight balance (step one the new A6) and then bias the torque split to something less than 50% 50% (my "guess" 40% 60%). Audis method of achieving at least a mitigation of the criticisms that FWD biased AWD is "just posing" has been to be 50% 50% split with a torque sensing (TORSEN) center differential that allows "mechanically" instantaneous transfer of motive force to the wheel(s) with the most traction. Other systems use electronic methods to "brake" slipping wheels -- using the sensors in the ABS/ESP system to tell them where the traction "isn't." The advocates of RWD bias (as I said, "with merit") correctly argue that the load shift upon acceleration favors a set-up that doesn't have to shift ("instantaneously" it is felt -- and I must agree -- is not the same as "already being RWD biased in the first place") from front to rear.
Moreover, the willingness of a car that is purring along -- 90% being pulled and 10% being pushed -- to "wag its tail" in aggressive cornering situations is, shall we say, potentially diminished.
Ideally, so advocates, drivers and engineers say, you would want the car to be as weight-balanced as possible (50 50 would be nice) and equipped with [somewhat] rear biased AWD. BMW and Mercedes (and soon Chrysler) are or have already biased their AWD cars 40% 60% or 32% 68%in the name of keeping the [RWD] faith.
The funny thing, for me -- a "proper" AWD set up is always superior to virtually any RWD guy -- is to watch BMW, especially, morph apparently painfully into product wide AWD. Oh how it must have galled certain folks to see the iDrive campaigns with the four flying "traction angels" -- and worse the "wet tongue, frozen pole" campaign must've caused some to run for the rubber rooms. For, you see, the BMW mantra used to be so anti-anything-Audi and anti-AWD that you could taste it, [even] in the US BMW dealerships. Now, there are two Sport Activity Vehicles, two 3 series and this upcoming year the 5 series that are moving to All Wheel Drive (either standard or optional).
The recent executive's moves from BMW to Audi, in Germany, must also gall the RWD stalwarts, too -- as Audi is quickly (compared to other's apparent moves kicking and screaming) moving to more neutral weight distribution and the engineering changes needed to embrace slightly RWD biased AWD.
It has taken others (from all corners of the globe) almost 20 years to "stop fighting [AWD] and switch." Audi's Dr. Piech some 20+ years ago prophesized that "someday all high performance cars would be AWD" -- he was, from time to time, shall we say "dis'd" for this "theory." Yet, when all the other guys start encroaching on Audi's "differentiator" -- quattro -- Audi quickly has responded.
As one who has watched and sometimes [even] wondered if Piech perhaps was a bit "off" (for twenty years) it is now amazing and gratifying to see virtually all Premium Performance cars announcing their plans to move rapidly into AWD (as if it was their idea all along.) You hold your head up Dr. P!
Acura, despite the 90% 10% (IF this is indeed accurate) initial split with the RL's SH AWD, has, as I have been arguing since 1984, just put another nail in the coffin of RWD (insofar as Premium High Performance cars that mere mortals drive on public roadways drive).
So, finally, my "prediction" is that Acura will, ultimately, make its FWD biased AWD a non-issue (by completely ignoring it or by engineering a slight RWD bias, within the first update [no more than 2 year, perhaps] of the new RL).
I love choices -- and despite the fact that Audi will soon no longer be unique (along with Subaru) in its AWD offerings, the choices for 2005 and beyond are exciting.
Drive it like you live.
Jun 19, 2004 (8:19 am)
Most of the supercharged cars I've driven that have the perception of some lag are mostly from the transmition, and not the actual blower itself. My own XKR is a good example. Even with all the sport shift buttons on, its pretty much impossible to make the Jag spin its wheels. Jag does this on purpose, the S-type R is the same way. They feel a "tire squealin" Jag would be somewhat undignified, and not inline with the image of the brand, so Jags have very tall 1st gears, and the real power really doesnt hit until the engine is north of 4500 rpm in 1st gear.
The Mustang Cobra, which uses the same Eaton blower, is not that way. Mercedes blown E55, even with only a 5-speed, is a MONSTER.
Jun 19, 2004 (8:24 am)
Before we write off the RL's engine and transmissions as lackluster, lets a) remember that the 2.4 in the Accord/TSX has an amazingly broad torque curve and its 5-speed auto is one of the best around and b) lets drive it and then discuss our opinions of its performance.
#2843 of 7386 Re: 2005 Acura RL Tire Size & Cost / Powertrain Warranty [shotgun #1396]
Jun 19, 2004 (4:01 pm)
>What, may I ask, is your source?<
I read a lot of coverage on the car last night from a great many sites. As I recall, the info on the powertrain warrantly was included in a long list of the cars features and specs. It appeared to come straight from an Acura source, but frankly, because I looked at so many sites, I don't remember which.
If I have time I will try to research that and if I find it again I will cut and paste the info along with the name and URL of the source.
#2844 of 7386 Initial Torque Split
Jun 19, 2004 (6:06 pm)
Does it really matter whether the initial torque split is 10-90 (FWD:RWD) or 50-50?
With SH-AWD, it can be changed up to 40-60 (FWD to RWD) as conditions require. The 40-60 is based off of rumors and speculations listed on various sites, the links to which I can't find right now.
Also, the latest rumors on the RL's 3.5L engine posted on another site which I can't link to due to Edmunds rules (but the site's name is based off of Honda's VTEC technology) has the following stats on the RL's engine:
The (speculated) dimensions and specs listed are as follows*:
Length: 196.5 in. (193.5 in.)
Width: 72.8 in. (72.6 in.)
Height: 57.0 in. (57.1 in.)
Wheelbase: 114.3 in. (110.2 in.)
Engine (mentioned above): J35A S-VTEC
Horsepower: 280 6200 rpm, 300 (for North America)
Torque: 260lb-ft 5000 rpm
Max HP and torque are at quite high rpms, not really usable.
#2846 of 7386 torque split
Jun 19, 2004 (7:10 pm)
Acura's own SH-AWD video says that torque can be varied from 30-70 to 70-30 F-R, with the additional noteworthy feature that the rear axle torque can be split up to 0-100 from right to left depending on conditions.
#2847 of 7386 Like Moths Hovering Over a 4-Ply Cashmere Sweater
Jun 19, 2004 (7:55 pm)
Perfervid Knights of the Road feverishly waiting for Acura's first kiss; like a teen trip to "first base!' Yea, size does matter! How we do speculate without the barest, authenticated shred of evidence. How we tease ourselves with visions of lb.-feet, weight distribution and 0-60 numbers, fearful of that tenth of a second indictment should the RL shamble through at 6.1!!
Is my body temperature more normal at 98.6 than at 98.7? Do we toss our cars around with greater aplomb UNDER 6 seconds in arriving breathlessly at 60mph? In fact, how many of us, and how often have we sedulously timed our takeoffs after a week or two of ownership? Show of hands, please...
As I type this, what do I want more: the new RL, or the brochure?? The brochure just skipped in at 5.5!! We articulate our impatience with such power, such importuning, hoping for saintly intercession. Why is Mother Acura smothering us with her unabated silence? Our beaks are open wide, awaiting the barest crumb to give us the strength to journey to the showrooms.Are our lives so barren that we have shed our pride and self respect waiting for that First Drive like expectant grooms?
Do not elevate yourselves to anger; I mock myself as well as thee!! Let's continue our speculating, CON BRIO!!
#2848 of 7386 Re: Like Moths Hovering Over a 4-Ply Cashmere Sweater [pellucid #1407]
Jun 19, 2004 (10:04 pm)
Pellucid - After reading your post, I've concluded, that I have less than a firm grip on reality! The fever of "RL" anticipation has totally consumed me! Therefore, I am, sir, a very sick man...have mercy!