AWD Switch for G35x
#16
#17
#19
nope. no limp mode here. The car has been running very nicely. I turn AWD back on when its raining. I only flip the switch when the car is off tho. I dont think you can flip it on and off when the vehicle is still on.
I must have taken the car to 90 or 100 once or twice in rwd mode, no problem. Driven in the snow as well with it off (just testing it) no problem.
merging and hard acceleration, no problem.
whipping out the rear end no problem.
seems safe to me! and when AWD is turned back on, that light turns off, and it runs just fine!
I must have taken the car to 90 or 100 once or twice in rwd mode, no problem. Driven in the snow as well with it off (just testing it) no problem.
merging and hard acceleration, no problem.
whipping out the rear end no problem.
seems safe to me! and when AWD is turned back on, that light turns off, and it runs just fine!
Last edited by Neal376; 04-16-2006 at 04:30 PM.
#20
Hmmm....this sounds very much like the set up in my wife's Subaru Legacy GT auto. When the car has to be towed with only two wheels on the ground or if the temporary spare is installed, you have to pop the hood and place a standard fuse into special fuse box which turns off the AWD and converts the car to FWD. The inserted fuse disengages the transfer case. Subaru is very specific about not driving like this for anymore than 50-60 miles. According to the techs I've talked with online at the Legacy site, the issue is when the transfer case is disengaged, the various tranfers pumps aren't pumping enough fluid through the housing to adequately lubricate the clutches. They say even though the clutches are disengaged, they still need fluid pumped to keep them in good operating condition.
Just something to consider before driving around with this mod long term. I'd definitely get a full understanding of the way the entire AWD system works. I know that a transfer clutch rebuild on my Legacy is about $800. I'd imagine the G transfer case is a bit more expensive.
Just something to consider before driving around with this mod long term. I'd definitely get a full understanding of the way the entire AWD system works. I know that a transfer clutch rebuild on my Legacy is about $800. I'd imagine the G transfer case is a bit more expensive.
Last edited by DaveB; 04-16-2006 at 05:24 PM.
#22
To be the dynamic AWD that Nissans and Acuras systems are (and i think Porsche, lamborhini), the use of a electromagnetic clutch is employed. The clutch is engaged when electricity is applied. conventional systems, like you stated, operate with the fluids, hydrolics and what not. Nissans and Acuras systems have the ability to turn themselves on and off in a split second. When the clutch is not engaged, there is a physical gap between it and the differential. Nissans system turns itself off after 15 mph. So you safely say that 95% of the driving in a G35x is done in RWD mode anyways. In fact, in the manual, it says that the snow switch, which locks the torque 50/50 up to 30 mph, should be used sparingly. In suburus instance, the vehicle is made to be operated in AWD all the time, while the G35 is made to be RWD most of the time (and AWD least of the time) In fact, you will probably reduce wear on the car if you leave it off more often. But like any vehicle component, its definetly good to hve it running every once in awhile. I dont think anyone will be turning there AWD off perminently anyways.
there are no pumps or fluids to be hasseled with. Like you said, the suburu AWD can not be as dynamic as the G's AWD due to the limitations of the systems clutch. The g's clutch does not have that limitation
the only reason why you see a correlation is because AWD in any vehicle can be manipulated with a fuse. In this case the G35 is a totally different system. I see no reason why it wouldn't be safe
there are no pumps or fluids to be hasseled with. Like you said, the suburu AWD can not be as dynamic as the G's AWD due to the limitations of the systems clutch. The g's clutch does not have that limitation
the only reason why you see a correlation is because AWD in any vehicle can be manipulated with a fuse. In this case the G35 is a totally different system. I see no reason why it wouldn't be safe
Last edited by Neal376; 04-16-2006 at 06:18 PM.
#23
Originally Posted by DaveB
Hmmm....this sounds very much like the set up in my wife's Subaru Legacy GT auto.............According to the techs I've talked with online at the Legacy site, the issue is when the transfer case is disengaged, the various tranfers pumps aren't pumping enough fluid through the housing to adequately lubricate the clutches. They say even though the clutches are disengaged, they still need fluid pumped to keep them in good operating condition.
"Legacy 2.5 GT models equipped with the optional 5-speed automatic transmission use a system called Variable Torque Distribution (VTD). A planetary center differential works with an electronically controlled continuously variable hydraulic transfer clutch to manage power distribution"
While I wouldn't necessarily run it this way 6 months out of the year, I think dyno tuning or limited use would do no harm. FI is on the way.
I can't believe we've gone from "this is not a Maxima" to "this is not a Subaru"
#25
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Originally Posted by ChicagoX
It's a different system. The Subaru AWD (auto) is a hydraulic unit rather than EM.
"Legacy 2.5 GT models equipped with the optional 5-speed automatic transmission use a system called Variable Torque Distribution (VTD). A planetary center differential works with an electronically controlled continuously variable hydraulic transfer clutch to manage power distribution"
While I wouldn't necessarily run it this way 6 months out of the year, I think dyno tuning or limited use would do no harm. FI is on the way.
I can't believe we've gone from "this is not a Maxima" to "this is not a Subaru"
"Legacy 2.5 GT models equipped with the optional 5-speed automatic transmission use a system called Variable Torque Distribution (VTD). A planetary center differential works with an electronically controlled continuously variable hydraulic transfer clutch to manage power distribution"
While I wouldn't necessarily run it this way 6 months out of the year, I think dyno tuning or limited use would do no harm. FI is on the way.
I can't believe we've gone from "this is not a Maxima" to "this is not a Subaru"
#30