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#1
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Torque Converter lockup delayed?
Hey all,
When I start my SVX for the first time each day and drive off it takes about 7 to 10 miles of highway driving before the converter locks. After this initial delay the converter locks up right away. It seems to lock up firmly. I don't know if it took this long for lock up before the 4.44 legacy trans was installed because I purchased it with the tranny bad. Is this normal? Steve
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1992 SVX lsl - >111K, pearl, 4.44 gears, ECUtune stage 1 2005 Outback XT wagon - i love that turbo!!!! 2004 Dodge Ram 1500 Hemi |
#2
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Yeah, the transmission has to warm up to a certain temperature before it will allow TC lock up. I forgot what that temp was. But that's normal. (Both the temp thing and my forgetting...Both are normal. )
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Robert Is Bush in jail yet? (Looks frantically at watch, then back up) How about now? Now? Come onnnnnn...... Someone freeze me until January, this wait is killing me. Update: 09 January, and still not in jail! Wassup?? 1992 Teal LS-L - 160k (Now new and improved with perfect paint!) |
#3
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Tranny won't lock until it's at 50F. It also won't shift into 4th until it's at 50F either.
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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 |
#4
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Quote:
Steve
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1992 SVX lsl - >111K, pearl, 4.44 gears, ECUtune stage 1 2005 Outback XT wagon - i love that turbo!!!! 2004 Dodge Ram 1500 Hemi |
#5
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It's more like 150 degrees before the TC locks; at this time of year, with a mid-sized, supplemental ATF cooler, I'm nearing the end of my 12-mile commute when I feel it hook up.
dcb |
#6
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On the stock SVXi I drive, it takes about 7 miles in the mornings before they lockup. On the 4.44s, it takes longer, and is less noticable.
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www.svxfiles.com The first SuperCharged SVX, the first 4.44 gears, the first equal length headers, the first phenolic spacers, the first Class Glass fiberglass hood, the first with 4, 4.44s in his driveway Fiberglass Hood thread My locker 4.44 Swap link |
#7
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Quote:
I plan on relocating the trans cooler to my driver's side fender this weekend or the next. I'll see how much longer it takes afterwards... -Chike
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"Wise men talk because they have something to say; fools, because they have to say something." - Plato 2013 Cosmic Blue 5spd Evo X GSR 2006 Galaxy Gray 6MT RX-8 (sold) 2006 Steel Gray WRX TR (sold) 1996 Brilliant Red SVX L (sold) |
#8
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Quote:
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Mychailo :: 2006 Silver Mitsubishi Evolution 9, E85, 34 psi peak, 425wtq/505whp DJ :: 1995 Laguna Blue SVX L AWD 5MT (sold) Visit my locker SVX Mods: ND iridium spark plugs, Impreza RS fpr, afr tuned to 13.2:1 using a custom MAF bypass, custom exhaust, WRX 5MT w/ STi RA 1st-4th gear & stock WRX 5th gear, Exedy 13 lb flywheel & Sport Clutch, STi Group N tranny & engine mounts, urethane spacers in rear subframe, rear diff mounts, and pitch stopper, SVX Sport Strut Springs (185f/150r), custom 19 mm rear swaybar, urethane swaybar mounts, Rota Torque 17x8", 225/45-17 Proxes 4 tires, Axxis Deluxe Plus organic brake pads. |
#9
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My experiences showed I get 4th gear at 50°F, TC lockup at 150°F and TC unlock if the temp dropped below 100°F
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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! |
#10
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I know one thing: Mine goes much, much farther on a gallon of gas with the torque converter locked, provided the RPMs are high enough to keep the engine from lugging.
dcb |
#11
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Cooler.
The time for the converter to lock depends on the ATF temp. While the converter is working it will produce heat in the oil, when the oil reaches operating temp, it will lock.
When a additional cooler is fitted, it should be fitted in series, before the orignal cooler in the radiator. This allows the extra cooler to reduce the oil temp, and the water cooler to stablize the oil temp, allow it to heat up to temp faster.If the extra cooler is fitted after the orignal, it will cool the oil temp back down,to a lower temp that will keep the converter unlocked for a longer time. Subaru used a oil/water heat exchanger, as all cars do, for this reasion. Harvey.
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One Arm Bloke. Tell it like it is! 95 Lsi. Bordeaux Pearl, Aust. RHD.149,000Kls Subaru BBS wheels. 97 Liberty GX Auto sedan. 320,000Kls. 04 Liberty 30R Auto Premium. 92.000kls. |
#12
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Thanks for all the info.
It sounds like my SVX is shifting the t/c as it should. Steve
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1992 SVX lsl - >111K, pearl, 4.44 gears, ECUtune stage 1 2005 Outback XT wagon - i love that turbo!!!! 2004 Dodge Ram 1500 Hemi |
#13
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Quote:
- Jim
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- Jim '02 Outback - Wife's car '96 Legacy Wagon - Son's car '95 Legacy Sedan - #5 Daughter's car '93 Impreza Sedan - #4 Daughter's car '92 Claret LS-L - My car ____________ TOTAL = 595,000 Subi miles |
#14
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Quote:
dcb |
#15
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Cooler.
Feel free Darrell,
Yes Jim, that happens, a lot of people took it out of circuit when it blocked. and just fitted the air cooler. What they should have done is reverse flush the cooler to remove the debri, and fit a filter to prevent it from happening again.When the extra air cooler is installed before the water cooler, it then will remove the high-end heat, then the water cooler can stablise the temp to normal operating temp, so the trans will operate normally. Harvey.
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One Arm Bloke. Tell it like it is! 95 Lsi. Bordeaux Pearl, Aust. RHD.149,000Kls Subaru BBS wheels. 97 Liberty GX Auto sedan. 320,000Kls. 04 Liberty 30R Auto Premium. 92.000kls. |
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