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Walt Fricke Walt Fricke is offline
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Join Date: May 2004
Location: Boulder, Colorado
Posts: 7,275
Kid - the Seine weld tab performs the same function for 1/2 that the stock tabs perform for 5/R. When you spring load a gear selection, something limits the spring's compression. Without the tab system, that something is the ball on the end of the dongle pressing against the edge of the slot in one of the steel slots on a shift rail, which translates into pressure on the brass shift fork involved. This could lead to decelerated wear on the fork, which normally has no pressure on it once a gear is engaged and the engagement teeth and synchro ring do their job of holding the teeth together. The noticeable effect of this unwanted pressure, however, is some noise when in 1st or 2d

The predecessor to Seine was Robotek, and I installed one. Still have it, works fine. But I noticed the extra sound in 1/2. So I fabricated a hook and tab system, and it went away. Once a gear is engaged there is no residual pressure.

The original WEVO shifter did not incorporate any mechanism to deal with this residual loading in 1/2. I asked Hayden about it, but he felt it was not of consequence. He is a smart and knowledgeable mechanical type, but I wouldn't use a shifter system which didn't take up the spring pressure up front in the shift tower.

Porsche saw this as useful for 5/R. To be sure, 5 may be the gear which gets the most mileage, but around town you are in 1/2 quite a bit. The hook and tab system is a lot like the accelerator pedal stop, or the clutch pedal stop - keeps the forces where they belong.

This is off the topic of adjusting the shifter, though, and in no way related to the problems Mr. Soerensen has.
Old 11-15-2020, 07:26 PM
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