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#1
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differences for 4EAT - 4.11 vice 3.54
I've noticed the torque converter locks up at a lower road speed now, and holds it lower when slowing down. So I'm guessing TC Lock-up is input shaft speed dependent vice road speed - or is this an artifact of using a newer (98 Imprezza) tranny.
Have bought gas once, but forgot to record the mileage - now on my second tank of gas (and reset the trip odometer), will report back any difference in mpg. |
#2
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Lee,
I've been under the impression that the Imprezza TC has a smaller diameter than the SVX TC, which leads to the difference in lock up rpm. -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 |
#3
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true the Imprezza TC is smaller, but I used the SVX TC, or did I misunderstand your intent?
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#4
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Honestly, my SVX T/C locks up at the same speed in my Impreza 4EAT as it did in my former SVX 4EAT - 40mph. However, it does seem to remain locked for longer when slowing down and releases somewhere in the 30mph range...
-Chike P.S. My mileage is 21-22mpg mpg doing about 60% city driving, and 25 mpg in 85-90% highway.
__________________
"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) |
#5
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Quote:
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#6
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Quote:
-Chike
__________________
"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) |
#7
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Stupid here
Call me stupid, but what do you mean by the TC lockin up?
I've changed my tranny to an Impreza one and had some problem with slippage at 6400 rpm. Changed my 90,000= spark plugs and O2 sensors and now she runs like a rapped ape. The shift it quick and smooth too. What a huge differance Steve
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92 SVX AWD 130,000 w/ rebuilt SVX 4.11 97 Audi A4 1.8T (Daily Driver) 03 Ford Expedition(hers) SVXepidia SVX information warehouse Are you in? My Old Locker A 4.11 Founding Father "Tranny #6" I really need a manual Reading IX [SIGPIC][/SIGPIC] Ya I was there
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#8
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The TC lock up is RPM related, not MPH related, so since you have lower final drive in it now, it makes sense that it'll lock up earlier, and stay in later...
It sure does make the SVX get off the line better with the 4.11's huh?
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Huck Subaru Ambassador 92 SVX LS-Tour Magnaflow Exhaust, 5-Spd-AWD 88 XT6 AWD 5-Speed "Bride of FrankenWedge" 15 Impreza Premium Sedan 15 Crosstrek XV 5-Speed My 5-Speed "How-To" Write-up 1976 Pontiac Firebird Formula Current Count of Subaru's Owned.... "70" Last edited by huck369; 11-15-2004 at 08:52 AM. |
#9
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Quote:
Sorry, I didn't realize you were using the SVX TC. -Bill
__________________
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 |
#10
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Quote:
-Chike
__________________
"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) |
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