FRONT mechanical LSDs are pretty rare except for really serious off-road vehicles such as the Hummer. "Virtual" rear LSDs using the brakes individually, a form of TC, have become fairly common. So you may find vehicles with "virtual" front LSDs but even those are unlikely to provide a seriously limited locking level due to the feedback to the steering wheel.
With a "base" FWD such as the MDX the most likely reaction to even the slightest level of front wheelslip/spin would be INSTANT engine dethrottling accompanied by moderate braking of BOTH front wheels.
Unless it has a TC disable PB as do most F/awd vehicles.
Front Mechanical LSDs are far too dangerous to thumbs and fingers to put in the hands of the general automotive buying public, UNWARY public. "Virtual" LSDs, maybe, but their "firmness" can be firmware limited.
TC, obviously, could be referred to as a form of LSD.
My guess is that someone in marketing is being a bit too liberal with terms. I'd bet that what these cars really have, as do most FWD vehicles, is a hyperactive TC system. Instant engine dethrottling along with moderate (ABS "rate") braking of BOTH front wheels when even the slightest level of wheelspin/slip is detected.
The RAV4 "LSD" is a "virtual" one. TC, Traction Control, braking is used to prevent wheelspin/slip should it occur when too much torque is applied for roadbed conditions. According to the factory shop/repair manual BOTH brakes are applied simultaneously upon wheelspin/slip detection along with FULL engine dethrottling.
Loss of traction on the driven wheels, or wheel, of a FWD vehicle is considered a VERY serious matter.
I suspect you will find the RDX, or any modern day FWD or F/awd vehicle, has the very same "LSD" implementation.
I've read here and there that the RDX rides a bit stiff and is noisy. However, I know that can depend on what you're used to- or have put up with for a while. If you're coming from a first gen CRV into say, a 2007 model or later RDX, how does it compare to the CRV? About the same or is it a bit better? No illusions about the handling of the CRV, I don't try to make it do the things you could do with a Civic or Accord sedan, you just treat it like what it is. How does the RDX compare in handling to the CRV, if the rest is about equal or better regarding ride and noise? Thanks.
Comments
FRONT mechanical LSDs are pretty rare except for really serious off-road vehicles such as the Hummer. "Virtual" rear LSDs using the brakes individually, a form of TC, have become fairly common. So you may find vehicles with "virtual" front LSDs but even those are unlikely to provide a seriously limited locking level due to the feedback to the steering wheel.
With a "base" FWD such as the MDX the most likely reaction to even the slightest level of front wheelslip/spin would be INSTANT engine dethrottling accompanied by moderate braking of BOTH front wheels.
Unless it has a TC disable PB as do most F/awd vehicles.
Just so you know...
'10 & '11 Toyota RAV4 FWD is equipped with an LSD. Acura TL Type S Sedan -'07 & '08 - yep... LSD. There are more, but you get the point.
Couple of rare cars there alright.
Front Mechanical LSDs are far too dangerous to thumbs and fingers to put in the hands of the general automotive buying public, UNWARY public. "Virtual" LSDs, maybe, but their "firmness" can be firmware limited.
TC, obviously, could be referred to as a form of LSD.
My guess is that someone in marketing is being a bit too liberal with terms. I'd bet that what these cars really have, as do most FWD vehicles, is a hyperactive TC system. Instant engine dethrottling along with moderate (ABS "rate") braking of BOTH front wheels when even the slightest level of wheelspin/slip is detected.
I'll put money on that if you wish.
"Virtual" LSD as a "Subset" of TC.
http://www.tundrasolutions.com/forums/engine-and-drivetrain/43938-automatic-lsd-- - questions/
41100-RN4-000 diff assy $220
41100-RN3-000 diff assy $218
Anyone have any info on the FWD diff type?
Toyota RAV4 FWD has an LSD, want to know if a RDX FWD does as well.
Thanks
Loss of traction on the driven wheels, or wheel, of a FWD vehicle is considered a VERY serious matter.
I suspect you will find the RDX, or any modern day FWD or F/awd vehicle, has the very same "LSD" implementation.
I found the part #'s for both...
41100-RN4-000 diff assy $220
41100-RN3-000 diff assy $218
Anyone have any info on the FWD diff type?
Toyota RAV4 FWD has an LSD, want to know if a RDX FWD does as well.
Thanks
http://automobiles.honda.com/insight-hybrid/features.aspx?Feature=vsa
http://corporate.honda.com/safety/details.aspx?id=active_safety
About halfway down the page see:
3) Standing start slip control
http://world.honda.com/news/1997/t970702d.html
Fully open diff.
No lsd for you.
No MECHANICAL lsd, but a "virtual" one.