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DaveCarrera4S

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Posts posted by DaveCarrera4S

  1.  

    If the tire sizes are exactly equal, there is no shear at the VC coupling, hence minimal drag, or lock up.  If there is a front to rear bias in outer diameter of the tire, then the VC silicone fluid is shearing - and causing some low % of lock up.  Smaller rear diameter causes transfer of power to the front.  smaller front diameter causes drag on the engine at steady cruise speed.  Disclaimer, I was an engineer at a major silicone fluid manufacturer in Germany for 13 years of my career...

    I've never known an engineer to be so cavalier about precision, In the spirit of the forum it would have been helpful if you'd just answered the question .....

     

    Are you serious?  Engineers make decisions every day about precision, and how much is needed.   Unbelievable comment - obviously from a non-engineer.

  2. If the tire sizes are exactly equal, there is no shear at the VC coupling, hence minimal drag, or lock up.  If there is a front to rear bias in outer diameter of the tire, then the VC silicone fluid is shearing - and causing some low % of lock up.  Smaller rear diameter causes transfer of power to the front.  smaller front diameter causes drag on the engine at steady cruise speed.  Disclaimer, I was an engineer at a major silicone fluid manufacturer in Germany for 13 years of my career...

  3. I don't have the turbo wiring diagram. Can you tell us how much current you plan to draw? On my N/A 996, the O2 sensor wires are quite accesible. The black O2 wire carries the switched +12v. Not sure if your turbo is similar.

    Ahsai, this is for my eRam kit's eBox or electronic box that fools the spoiler warning system.  It draws less than an amp.  currently I pull +12V from the charging stud next to the oil filter.  would rather it connect up to switched power.

    eBox-4-web-on-black.jpg

  4. "The old S02s, if anyone still remembers those, were infinitely worse. Ride quality is what it is. Better than the Pilot Sports but that's not saying much."

     

    Huh??

     

    A.  I am really liking my Bridge S04's, are they that much better than the S02's you reference?

    B.  Most people think the PS's are fantastic -

     

    ??

  5. Slightly off topic, I wonder what causes these to fail?  I'm pretty sure mine are original and I have 90K miles on the car.  It lived in San Diego, then here in MI for 2 years.  Wonder if it was a bad batch from the mfg, or excess heat (e.g. TX, AZ, etc.)??

  6. Hi All, reserecting an old thread, did a search couldn't find anything else, though I suspect it's out there.  need a DIY procedure for swapping out a 996TT steering wheel.  Have same 3 spoke wheel with thicker padding and want to install it.  The links to pdf's above are all broken.  Anybody have a good procedure?  Nothing on youtube, can't seem to find much.

  7. Well, the ECU is looking for current flow from the limit switches when the wing is told to go up or down.  Normally, with wing down, the bottom switch is closed and the top open.  When the wing goes up, the bottom is open and the top closed.  That said, some have had luck jumpering the top switch.  Another site that sells fixed height kit recommends hooking the gray/brown switch wire (not sure if this ends up being the blue or gray one, but further up it is gray/brown) with the yellow/green motor wire (probably the black one, but further up on the harness it is yellow green).  There may be a difference between 2001 and later years, but I've seen both wiring diagrams and cannot find anything.

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