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Has anyone upgraded/improved their tip box?

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Old Aug 25, 2009 | 04:15 AM
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Default Has anyone upgraded/improved their tip box?

Not just by replacing it with a new OEM unit, but actually doing something to improve smoothness/responsiveness or by reprogramming it. I've just changed the transmission fluid, and this made minimal difference.

Any idea?

Car's running nicely at the moment, and the jerkiness of the tip is kinda spoiling the ride. One example - when I'm in manual shift mode, I slip it into 2, and there's immediate take up. But 1 second later, there's a 2nd stage, esp under hard acceleration. I'm assuming it to be the lock-up clutch being worn, but am not an expert on tips.

Was the racing 964 tip that Walther Rohrl drove in the early '90s modified?

Last edited by ACSGP; Aug 25, 2009 at 05:43 AM.
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Old Aug 25, 2009 | 04:47 AM
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There is a german chap by the name of Hacki who posts on the Porsche club gb forum in the 964RS section who now owns the tip cup car . You might want want to post on there for more info about that.
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Old Aug 25, 2009 | 05:27 AM
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Originally Posted by Laurence Gibbs
There is a german chap by the name of Hacki who posts on the Porsche club gb forum in the 964RS section who now owns the tip cup car . You might want want to post on there for more info about that.
Thanks for the lead.

Does anyone know if Robert Linton upgraded the tip on his car? Robert?
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Old Aug 25, 2009 | 07:23 AM
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ACSGP, how did you change your fluid? Did you use the Tranny oil DIY in the DIY section? My 3 to 4 shift acted up for the first me this weekend.
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Old Aug 25, 2009 | 08:02 AM
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Originally Posted by alfred_hybrid
ACSGP, how did you change your fluid? Did you use the Tranny oil DIY in the DIY section? My 3 to 4 shift acted up for the first me this weekend.
Had it done by the Porsche workshop, sorry, can't help there.
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Old Aug 25, 2009 | 01:09 PM
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It is not hard to change. You will need a new screen and get your car up in the air so you can drain the pan and then drop it. Measure how much fliud comes out, add that much new , drive it and then check for proper level. Add as required.
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Old Aug 25, 2009 | 02:47 PM
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Its normal to have sort of 1 1/2 gears going into 2nd.
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Old Aug 25, 2009 | 04:03 PM
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Originally Posted by ACSGP
Not just by replacing it with a new OEM unit, but actually doing something to improve smoothness/responsiveness or by reprogramming it. I've just changed the transmission fluid, and this made minimal difference.

Any idea?

Car's running nicely at the moment, and the jerkiness of the tip is kinda spoiling the ride. One example - when I'm in manual shift mode, I slip it into 2, and there's immediate take up. But 1 second later, there's a 2nd stage, esp under hard acceleration. I'm assuming it to be the lock-up clutch being worn, but am not an expert on tips.

Was the racing 964 tip that Walther Rohrl drove in the early '90s modified?

What you feel is the torque converter locking up, it's an improvement that Porsche did for the 993. I think the 964 tiptronic had too but under different circumstances.
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Old Aug 25, 2009 | 11:30 PM
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Originally Posted by Oracle
What you feel is the torque converter locking up, it's an improvement that Porsche did for the 993. I think the 964 tiptronic had too but under different circumstances.
Sounds like a software issue. Has anyone re-mapped their transmission?
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Old Aug 26, 2009 | 01:11 AM
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This used to make me think my Tip was a 5 speed. Its just the torque converter locking up. You get used to it.

I have not heard of any shift kits for this transmission like they make for the old big American Turbo 400s
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