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Old 01-11-2003, 09:40 PM   #1
RawCode
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Talking Auto peoples: Ever pop in the FWD fuse?

Well I was bored and decided to pop in the FWD fuse to see what happened. Well I live in Alaska and Snow and ICe are the norm..

Holy lack of Traction Batman! I could hardly get away from a light with Studded Hakka's. Man that is when I realized that 50% of the performace of the car in bad conditions is AWD.

I guess I just forgot how much I hated the one wheel peel.

RawCode
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Old 01-13-2003, 01:54 PM   #2
ciper
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I tried before, the only thing it was good for was to sit and spin the tires honda style.
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Old 01-13-2003, 03:18 PM   #3
Legacy777
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Try driving a FWD subie regularly
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Old 01-14-2003, 10:59 AM   #4
RossWRX
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coule we use this to dyno our cars on a 2 wheel dyno?
Just put the transmission in "2" and do a run?
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Old 01-14-2003, 01:38 PM   #5
Legacy777
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I have a friend that has done this.......it's probably not the best idea.....

However if you have a WRX... I don't think it will work regardless.....because it uses an actual center diff.

The older trannies used a rear extension housing and rear clutch pack.

Josh
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Old 01-14-2003, 01:45 PM   #6
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Too bad it's not a RWD fuse instead.

AutoX, here I come!
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Old 01-14-2003, 01:48 PM   #7
ciper
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Even with the FWD fuse inserted the Rear wills STILL MUST TURN!!! The car may be in FWD mode but you still have contact. The way to dyno pre WRX-VDC cars is to float the rear wheels and stick the front on the dyno.
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Old 01-14-2003, 06:40 PM   #8
scoobyimprza
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Quote:
Originally posted by legacy777
Try driving a FWD subie regularly
i hear ya buddy!
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Old 01-14-2003, 10:08 PM   #9
SubaruWRC
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what size fuse do you put in

Jiffycool:
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Old 01-15-2003, 09:25 PM   #10
SubaruWRC
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?
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Old 01-15-2003, 09:41 PM   #11
ciper
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15?

Hmm, while looking in the service manual it states the FWD fuse is

"also used to adapt the vehicle to FWD tester roller."

Hmm, sounds like 2wd dyno to me.
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Old 01-15-2003, 10:32 PM   #12
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Fuse....use whatever you want.....there's extras in the fuse box...any one of those would work.


Ciper......I think you'd be alright running it on a 2WD with the fuse in. It basically disables fluid pressure going to the rear clutch pack. I'm assuming the duty solenoid will stay open and all the fluid will just bypass the clutches........I see no harm that can be done.....assuming it works like that.
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Old 01-15-2003, 10:52 PM   #13
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COOL! I'm gonna try it on my wife's legacy.
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Old 01-16-2003, 08:41 AM   #14
Legacy777
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Just to re-itterate......what I described is for the pre VTD auto tranny cars.

I'm not sure if the VTD trannys have a FWD fuse holder or not......so I can't comment whether putting the FWD fuse holder in and goin on the dyno would be a good thing.

But it should be fine for the pre VTD auto trannys.
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Old 01-16-2003, 09:50 AM   #15
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Well, my wife's is a '96, so that may not work out.
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Old 01-16-2003, 10:18 AM   #16
Legacy777
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Quote:
Originally posted by Bolster
Well, my wife's is a '96, so that may not work out.
It'll work. The VTD first came out in the H6 models & the WRX. Everything before that had the same auto tranny setup with rear extension housing.

Josh
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Old 01-16-2003, 10:45 AM   #17
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Well, I just learned something new. This setup (non-vtd) runs full time AWD by using an electronically controlled clutch pack, right? If so, and this may be SO yesterday's news, couldn't you rig up a controller that lets you setup the bias, a la, DCCD? -Bolster
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Old 01-16-2003, 12:36 PM   #18
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Quote:
Originally posted by Bolster
Well, I just learned something new. This setup (non-vtd) runs full time AWD by using an electronically controlled clutch pack, right? If so, and this may be SO yesterday's news, couldn't you rig up a controller that lets you setup the bias, a la, DCCD? -Bolster
See Torquemada: Development / Status Thread
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Old 01-16-2003, 02:18 PM   #19
Legacy777
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Quote:
Originally posted by Bolster
Well, I just learned something new. This setup (non-vtd) runs full time AWD by using an electronically controlled clutch pack, right? If so, and this may be SO yesterday's news, couldn't you rig up a controller that lets you setup the bias, a la, DCCD? -Bolster

Yup.....actually you can rig a switch inline with the duty c solenoid.....I think if you short the circuit....it will default to full line pressure, which gives you 50/50 torque split.

The ideal way would be to take measurements on the duty c solenoid when the gear selector is in the "1" position, because the trans is supposed to be 50/50 split at that time. Once you get your measurements.....mimic that same signal some how to get your torque split.....aka the torquemada.

If you need help visualizing the whole thing, take a look at these.

http://www.main.experiencetherave.co...er_system1.jpg
http://www.main.experiencetherave.co...er_system2.jpg
http://www.main.experiencetherave.co...er_system3.jpg

Josh
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