transaxle modifications for the rtawds

[cvjoint2]

HAs anyone though of this or does anyone have an idea?
Is there any way that the tranaxle can be set up so the driveshaft get direct power from the pinion gear or shaft that runs the front wheels?. I came to the conclusion that it might have something like a second diff.because if one of the wheels lifts or even slips then you might as well be driving a regular front wheel drive. Is there any way to tie the power from the input shaft with the driveshaft going to the rear differential?.

[freelance1000]

I haven't understood the 'WHY' factor of the above?
Are you experiencing consistant loss of traction? If so, the following thread on Limited Slip Differentials might assist.
http://www.hondasuv.com/main2/viewtopic.php?t=683&highlight=lsd
Other than that, put better tyres on the car and/or slow down.

Apologies that the above are not as exciting as a custom transaxle modification... :)

[N_Jay]

I haven't understood the 'WHY' factor of the above?
Are you experiencing consistant loss of traction? If so, the following thread on Limited Slip Differentials might assist.
http://www.hondasuv.com/main2/viewtopic.php?t=683&highlight=lsd
Other than that, put better tyres on the car and/or slow down.

Apologies that the above are not as exciting as a custom transaxle modification... :)

I like the "Why Factor" comment. :twisted:

The drive shaft to the rear does ALWAYS get power. The RT4WD work is all in the rear. :!:

[sinisia]

It's theoretically possible to trick the RT4WD into diving the rears all of the time if you find a way to signal the hydraulic pump that drives the rear diff into always running. The RT4WD works by signaling the diff pump to work whenever a wheel slips. It's not designed to run constantly and would probably overheat or wear out quickly if it did, not to mention kill your MPG and who knows what else. Better off asking Honda to give us an AWD desing like Subaru instead of RT4WD. The least they could do is provide a low speed lock feature like the Pilot.

[Racoon]

The least they could do is provide a low speed lock feature like the Pilot.
They do...in the Pilot. Which is only one of the reasons it costs more than the CR-V.

:)

[freelance1000]

It's theoretically possible to trick the RT4WD into diving the rears all of the time if you find a way to signal the hydraulic pump that drives the rear diff into always running. The RT4WD works by signaling the diff pump to work whenever a wheel slips. It's not designed to run constantly and would probably overheat or wear out quickly if it did, not to mention kill your MPG and who knows what else. etc. etc.

Easiest way to trick the RT4WD system would be to put smaller tyres on either the front or the back... :twisted:

If anyone is crazy enough to do the above, ensure you let us know how long it takes for the RT4WD system to destruct... :D

[CR-Vince]

There's a thermal relief valve that will try to save you from your own foolishness. Mess with that, and you're truly on your own. :)

[freelance1000]

There's a thermal relief valve that will try to save you from your own foolishness. Mess with that, and you're truly on your own. :)

I thought of the valve, but still suspect something would go wrong around the rear diff. area if the vehicle was forced into constant 4WD by different sized tyres (for the simple fact that the vehicle was not designed to operate as a constant 4WD).

Vehicle is taken for a drive in 'forced' 4WD, rear diff. heats up, valve relief shuts it down to 2WD, cools down, back into 4WD, 2WD, 4WD, 2WD, 4WD, 2WD, 4WD etc etc. Shortly thereafter "Oh, my car is making strange noises...I wonder why?"

Is there anyone game (crazy?) enough to test the above? :D

[Varmint]

There's a thermal relief valve that will try to save you from your own foolishness.

I'm not so sure that the thermal relief valve will save you.

As I understand it, the relief is triggered when the system heats up. The most obvious reason for overheating would be the constant cycling back and forth between "on" and "off". Each time the clutch plates meet, they would rub and create friction. Friction creates heat.

But, if you lock the clutch plates together full time, they won't be rubbing. They'll be "fused" together. No cycling back and forth. No friction. No heat.

No safety from stupidity!

[N_Jay]

. .

But, if you lock the clutch plates together full time, they won't be rubbing. They'll be "fused" together. No cycling back and forth. No friction. No heat.

No safety from stupidity!


But when you drive in anything but a strait line something has to slip. It is either the tire or the clutches. and a slippping clutch under full locked condition will generate a LOT of heat quickly, in addition to tearing up the friction material.

[Varmint]

Oh yeah, sure. If you are lucky enough to have the clutch plates slip. If not, the tires might scrub off the difference. Either of those situations is better than the alternative... the drivetrain gets twisted into scrap metal.

Hydraulics are capable of generating some serious power. Meaning the clutch plates might not slip. So I certainly wouldn't count on the thermal relief valve to save my skin.

[chiph]

Isn't there an overpressure valve in there, too?

Chip H.

[charlie408]

YOU GUYS ARE CRAZY! 1st the clutch pack does not slip around corners the CR-V has an open diff not a locked diff. you could make the v full time 4 wheel but there is only one way. remove the clutch pack, remove the duel pump, and make a new shaft that goes directley to the pinion gear inside the rear diff. That or just get a regular diff with the proper hook ups for the drive shaft and c/v shafts and install it. the real question hear is how much $$money$$ are you willing to spend.

[N_Jay]

YOU GUYS ARE CRAZY! 1st the clutch pack does not slip around corners the CR-V has an open diff not a locked diff. you could make the v full time 4 wheel but there is only one way. remove the clutch pack, remove the duel pump, and make a new shaft that goes directley to the pinion gear inside the rear diff. That or just get a regular diff with the proper hook ups for the drive shaft and c/v shafts and install it. the real question hear is how much $$money$$ are you willing to spend.

With no center differential there needs to be some slippage between the front and the rear when cornering!

[lotatimmy]

look at this months Element of the month (it has MDX AWD system