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Old 04-22-2001, 01:48 PM   #1
Im'Pat'za
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Talking Stock 4EAT -> Tiptronic AT

Hi, I did a search on changing the stock Automatic transmission system to a sportshift, tiptronic AT one; it seems that the 'levelten' company is making one (or is it finished already?) If it's finished, anyone has the result and price on that?

One more question, I have a MY01 RS 4EAT. I know the transmission will engage in 90/10 split after the 2nd gear, and there is a way to modify it and lock it on 50/50 all the time. Does anyone know how to do that? And since there are comments said about changing to 50/50 will damage the tires and/or AWD system in the long run, would it make our 4EAT cars slower on corners?

Thanks for commenting!

Pat
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Old 04-22-2001, 02:08 PM   #2
Andrew
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i think the locking it in 50/50 is by putting in certain resistors and tricking the ECU to thinking the fronts are slipping.

you can get a torque converter though and change the torque split to 50/50 in all gears if you want. i have heard that it even gets you 1sec quicker on the 1/4mile

[This message has been edited by Andrew (edited April 22, 2001).]
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Old 04-22-2001, 02:33 PM   #3
DEVO-2nd GEN
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Talking

oooooo..
very intersted in both

need more info !!
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Old 04-22-2001, 05:11 PM   #4
Im'Pat'za
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bump
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Old 04-22-2001, 06:38 PM   #5
Overtime
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Um, why would you want to lock the AWD system at 50/50? Isn't the advantage of Subaru's system the fact that it's not static (like BMW's and others'?)
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Old 04-22-2001, 07:09 PM   #6
remarcable
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50/50 all the time would be full time 4WD.

So you want a truck?

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Old 04-22-2001, 08:19 PM   #7
Im'Pat'za
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Although the system will become full time AWD, wouldn't it be better though?
I mean, if it's not good, why is the manual transmission ones in 50/50 split, are they driving a truck? I don't think that would be the case, would it?

Moreover, shouldn't 50/50 allow us to control bad weather such as rain and snow better? Also, if the 90/10 split is better after the 2nd gear, why isn't the manual like that?

All in all, I am not expert in any of these fields; I thought full time AWD is better... Prove to me if that's wrong...
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Old 04-22-2001, 08:39 PM   #8
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i think the keyword being "locked" here..

the 50/50 on manual isn't locked, it's just like that at normal, and torque is transferred to the front when rear slips, thus making it >50/<50

so anything that can make the 4EAT like the 5MT is probably what you(me) are looking for

come to think of it.. it's no easy task.. hmm.. damn!
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Old 04-22-2001, 09:38 PM   #9
Jessie James
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LevelTen has a shifter device which is $1500. 'Nuf said.

They have torque converters and performance rebuild kits also, all three to the tune of about $3500.

I am researching a way to shift manually, athough not really Tiptronic, so give me some time. I've found about three solutions, but the cheapest is $1226. Still too much $$$ for me.

I have a neighbor who is head mechanic at a local Subaru dealer, and I hope to pick his brain a lot. I have two goals:

1. Manually shift the transmisison up/down at will
2. Increase line pressure when shifting for crisper shifts and more performance.

Both can be done, I just need research. I will probably go with a LevelTen TC and rebuild kit, but not their shifter.

Check my web site for occasional updates. (None this month... I've been lazy!)

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Old 04-22-2001, 11:34 PM   #10
Keiho
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Maybe its just my tires getting bald (read: less grip), but when I'm taking a corner at 2nd, it seems that the car is just losing traction, mind you its like a four wheel power 'slip', but a bit disconcerting at times. The rush of power is there though, power through all four wheels is quite nice.
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Old 04-23-2001, 02:35 AM   #11
ivbdn
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Keiho -



I feel ya on that one. Took me off guard the first few times it happened.
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Old 04-24-2001, 07:00 AM   #12
Im'Pat'za
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does the Japanese wrx in old style offer sport shift?
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Old 04-24-2001, 10:16 AM   #13
quikE
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SAE defines any kind of split rather it be 90/10 or what have you, all as 4WD.
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