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#1
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Inserting fwd fuse.. makes your car fwd?
Just wondering because I plugged a fuse in there today (bored) and drove around.. couldn't tell the difference
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Brian |
#2
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works on my car. the dash light comes on saying 'FWD'. I used it once, for tray sliding, which was pretty awesome in a low, heavy car like the SVX btw - and the rear wheels were completely inoperable. I'm sure you'd notice more of a difference in the rain or snow, as its 90% FWD anyway
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1992 Pearl White/Black Onyx Subaru Alcyone SVX LS-L Donating Forum Member In Good Standing JDM 4.11 Geared Transmission JDM 'ALCYONE' Rear Panel JDM 'BOXER' Eingngine Cover JDM 'SVX' Hood Badge L-Edition Suede Rear Seats |
#3
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With the 4EAT there's a neat-o mod you can do fairly quick & cheap. You can run 2 wires from the FWD fuse holder into the cabin, then mount a nice switch to allow your 4EAT to be a true 4wd. I did this on my '97 Leggy. It allows you to put your spare tire on without opening the hood & trunk.
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[SIGPIC]http://www.subaru-svx.net/forum/image.php?type=sigpic&userid=5569&dateline=1207440 507[/SIGPIC] Naught but by the grace of God "42" Current Stable By Age:'89 Subaru XT6 Silver "Audrey" as in Hepburn '96 SVX LSi #767Brilliant Red "Lil Red" Now on the front burner. Looking for a totalled, but running parts car. |
#4
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. Earl .... ... .... ><SVX(*> Subaru Ambassador [COLOR=”silver”]1992 Tri Color L[/COLOR] ~45K (06/91) #2430 1992 Dark Teal LS-L ~184K (05/91) #0739 1992 Claret LS-L ~196K (05/91) #0831 1992 Pearl LS-L ~103K (06/91) #1680 1992 Pearl LS-L ~151K (06/91) #2229 1992 Dark Teal LS ~150K (07/91) #3098 (parts car) 1992 White LS-L ~139K (08/92) #6913 1993 25th AE ~98K (02/93) #164 1993 25th AE ~58K (02/93) #176 1993 25th AE ~107K (02/93) #215 1993 25th AE ~162K (02/93) #223 1994 Laguna Blue Pearl LSi ~124K (1/94) #2408 1994 Laguna Blue Pearl LSi ~144K (10/93) #1484 1994 Laguna Blue Pearl LSi ~68K (10/93) #1525 1994 Barcelona Red LSi ~46K (02/94) #2624 1994 Pearl LSi ~41K (12/93) #1961 1995 Bordeaux Pearl LSi ~70K (02/95) #855 1996 Polo Green LSi ~95K (03/96) #872 1997 Bordeaux Pearl LSi ~55K (08/96) #097 2003 Brilliant Red LS1 Convertible ~29K (04/03) #8951 1999 Magnetic Red LS1 Coupe ~33K (04/99) #6420 My Email | Old Locker | New Locker | Picture of 15 of the 19 |
#5
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When I put the FWD fuse in my old Legacy (read: 130hp) I could barely get the tires to chirp - and that was on a turn. Now, with the SVX, without the FWD fuse in, I can make the wheels chirp from dead stop on dry pavement
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-Jason (8/23/07-Present) 1995 Subaru SVX LSi (197k) Polo Green (#1102) 03/95 Mods: DDM Tuning 4500k 35w Low Beam HID, 100w H3 Bulbs, Extra Ground Cables, 15 minute $12.96 mod, svxfiles designed transmission mount (), sporting a "new" tail light bar, silver BBS rims, custom power steering cooler (one that doesn't dump ATF constantly), new negative lead cable, no more third or fourth gear (1977-Present) 1977 Chevrolet Corvette (81k) Silver (12/01/2011-Present) 2005 Subaru Outback 2.5i Limited 5MT (97k) I have a bad feeling about this. -Obi Wan Kenobi |
#6
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someone wanna help a newbie out with this and explain it a little more in depth??
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#7
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When you insert the fuse in the FWD part of the fusebox, it disengages the AWD so it is only FWD
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bLAh
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#8
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The FWD fuse under the hood forces the trans to open the transfer clutches. This "turns off" the AWD.
To get a bit more detailed, The transfer clutch(es) are controlled by the Transmission Control Unit (TCU). Using input from the ABS wheel sensors. The TCU varies how much slip the transfer clutch has, based on speed differences between the front & rear wheels. When the fronts are on, say, ice, and you punch the gas, they start to spin. This sends a signal to the ABS unit, which forwards the signal to the TCU. The TCU then activates the duty "C" solenoid. This closes the clutch, sending power to the rear wheels. Please note: I've skipped several details in making this easier for non-Soob geeks to understand. ALSO this does NOT apply to the 5MT.
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[SIGPIC]http://www.subaru-svx.net/forum/image.php?type=sigpic&userid=5569&dateline=1207440 507[/SIGPIC] Naught but by the grace of God "42" Current Stable By Age:'89 Subaru XT6 Silver "Audrey" as in Hepburn '96 SVX LSi #767Brilliant Red "Lil Red" Now on the front burner. Looking for a totalled, but running parts car. |
#9
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Okay, seriously, guys, stop it.
Don't put the FWD fuse in just to spin the front tires. You'll damage the transfer clutch. Putting the FWD fuse in, or wiring it up with a switch, does not make it 'permanent 4WD.' All that fuse does is prevent the car from sending signals to the transfer clutch solenoid. Without pulses going to that solenoid, it doesn't apply any pressure to the clutch. So it works, go figure, pretty much like a FWD car. Use it when you have to put the spare on the car or when your solenoid starts going bad and makes the clutch bind up. And the SVX is not '90% FWD.' The pressure on the transfer clutch is variable, and 10-50% of the torque an be applied to the rear wheels. No, you wouldn't feel any difference just driving around town. You would, however, feel a difference on a more slippery surface like gravel.
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2005 RX-8 Grand Touring 2005 Outback 2002 Mercedes-Benz E320 wagon END OF LINE |
#10
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I'm sorry, I misspoke. To clear things up, the switch mod makes the car part time AWD.
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[SIGPIC]http://www.subaru-svx.net/forum/image.php?type=sigpic&userid=5569&dateline=1207440 507[/SIGPIC] Naught but by the grace of God "42" Current Stable By Age:'89 Subaru XT6 Silver "Audrey" as in Hepburn '96 SVX LSi #767Brilliant Red "Lil Red" Now on the front burner. Looking for a totalled, but running parts car. |
#11
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More importantly... arent you on a 5 speed Ricochet?
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Tim 92 Liquid Silver SVX 5MT 2009 BMW Z4 (Gone) 2012 Camry V6 SE |
#12
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uh... you don't have FWD anymore
Tom |
#13
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Yeah that too.. so I'm guessing that fuse does nothing for me
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Brian |
#14
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LOL
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Chris 92 Ebony Mica LS-L "A Rolling Restoration": 223,250 KM - Sleeping 2007 STi 6MT, Stance GR+ coilovers, PWR Rad, JDM hood badge, svxfiles 6000K HIDs, JDM Clear Corners, $15/15 min mod, $20/20 min mod, Energy Swaybar Bushings, Hella Supertones horns, Gold STi BBS rims, Group A lightweight crank pulley, A/C system removed, Custom header-back exhaust, Hybrid carbon/metal rear sway bar, restored headlights with CCFL halos 2008 Subaru Legacy Spec B - Diamond Grey Metallic - Sold 2020 Ram 1500 Longhorn - Red Pearl |
#15
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Thank you Mr Pockets. I didn't realize there were speed sensors inside the trans. I was under the impression that the ABS & TCU worked hand in hand, thus the statement of the ABS supplying the signals exclusively.
I DID say I simplified the process, I knew that ths Duty C is a chatter valve. When you say clutch pressure to a non Soob person, they don't automatically see that you mean that the pressure allows more or less slip. The solenoid varies line pressure. The line pressure to the clutch allows the torque split. On a dry road, under full acceleration, this means that there is likely a 70\30 f\r split. On ice however there is a 50\50 split, effectively duplicating a 4wd system, however temporarily.
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[SIGPIC]http://www.subaru-svx.net/forum/image.php?type=sigpic&userid=5569&dateline=1207440 507[/SIGPIC] Naught but by the grace of God "42" Current Stable By Age:'89 Subaru XT6 Silver "Audrey" as in Hepburn '96 SVX LSi #767Brilliant Red "Lil Red" Now on the front burner. Looking for a totalled, but running parts car. |
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