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#1
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Transmission Tweak via Resistor on Battery??
I read somewhere, and have the instructions printed out around here somewhere, oh here we go I have the instruction and I will paste them.
"After listening to all the opinions about why they hold up so poorly, I came to the conclusion that the number one cause of premature failure in the SVX automatics was the slow shifting. During shifts, the bands and clutches inside the unit have to slip a certain amount when they engage the next gear. How much slippage occurs has a direct effect on the amount of heat produced as well as how much wear results from each shift. Many owners have discovered a little trick to firm up the shifts by unplugging the resistor that moderates the line pressure. This resistor is located behind the battery and when unplugged, results in firmer shifts at virtually all speeds. Unfortunately, two side effects are too firm shifting at low speeds and hunting of gears on deceleration. " Does this seem like a reasonable tweak to try? I have a brand new tranny that was replaced, not rebuilt and I want to savor the transmission as long as possible and get a little firmer shifting...could this work? Anyone do this before? Let me know what you think.
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Matt - Akron, OH And then what??? |
#2
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Don't disconnect the resistor. What you want to do is install a shift kit from Smallcarperformance. BTW, the guy at smallcarperformance wrote the info you posted above but goes on to explain further HERE.
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#3
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wtf is that? some hose and zip ties for 45 bucks???
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Brian |
#4
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Check with SVXFiles for a much less expensive "fix" for this...
-Bill
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Retired NASA Rocket Scientist Most famous NASA "Child" - OSIRIS-REx delivered samples from asteroid BENNU to Earth in Sept. 2023 Center Network Member #989 '92 Fully caged, 5 speed, waiting for its fully built EG33 '92 "Test Mule", 4:44 Auto, JDM 4:44 Rear Diff with Mech LSD, Tuned headers, Full one-off suspension '92(?) Laguna, 6 spd and other stuff (still at OT's place) My Locker |
#5
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...
Is this even necessary? I mean is this only applicable when you are encountering issues with your tranny? I'm not really into modding this if its not a complete positive effect to the operation of the SVX.
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Matt - Akron, OH And then what??? |
#6
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Don't unplug the resistor. This will generate an error code in your TCU. You will never know if there are multiple errors being reported unless you check the codes every time you get in the car.
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David B. SVXipedia @ SVX-IW.COM -- SVX Information Warehouse 2.0 coming...eventually! Ebony 1992 SVX LS-L 5 spd Koni/GC Stebro 187k miles RIP (Rust In Pieces) 1993 SVX 5 spd Koni/GC Stebro Polyurethane bushings still available! |
#7
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Quote:
Kinda confused as well, disconnecting the resistor is not completely positive. You get firmer shifts yes but all the time, even at low speed and the tranny will not downshift properly. "Ricochet wtf is that? some hose and zip ties for 45 bucks???" Now there's a well informed question. Since the link I posted may have escaped some of you, here's some more info: FAQ What if my transmission seems to be working perfectly? If your transmission seems to have no problems shifting or has been rebuilt recently, you may not notice much difference in normal driving. Even so, under brisk acceleration the Smallcar kit will firm up the shifts, helping your transmission last longer. What if my transmission has problems? If your automatic shifts sluggishly or has other problems, try unplugging the resistor behind the battery. If this seems to generally improve the operation, the Smallcar shift kit will help. If not, it's probably time for a rebuild or a Smallcar 5 speed. How does it work? The kit uses manifold pressure to sense engine load and switches the line pressure higher or lower as needed. For those who like to tinker, the switch point is adjustable. |
#8
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Quote:
I've had the kit on my car since it was first released by smallcar. I like the kit. My shifts are much firmer and there is no hunting on down shifts.
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2005 Legacy GT 2002 WRX VF22, Pinks, big TMIC and turbo back 128,*** miles My WRX's Cardomain Page Last edited by AFBeefcake; 03-16-2006 at 04:56 PM. |
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