Rennshift or Porsche factory short shift

[dynosoar1]

Hey guys,

Looking to change to a reduced throw and add a bit of protection against the dreaded money shift.......ive narrowed it down to two options the Rennshift and the factory short shift kit and was curious to hear from the group pros and cons or preferences for these two options. I would likely add the seine gate shift option for the Porsche factory short shift kit if I go that route. Thoughts....all opinions welcome and appreciated.

[nb6179505]

No wevo?

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[kenikh]

I love the Rennshifter


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[winders]

Originally Posted by kenikh

i love the rennshifter

+1

[Reiver]

Does the factory short shift kit pre load (spring elements) both sides of the shifting plane so the shifter naturally seeks center?
I honestly do not know but if it does not then you are more inclined to make a money shift.
I tried the adding springs to the stock unit (commercially sold) and it was nicer than stock but the Rennshift unit is truly excellent.....you would have to 'work' to make a money shift and the unit is beautifully made and easy to adjust (change sprig ratios to suit your personal feel).

Very pleased with the unit.

Assuming you have a 915 tranny one still must adapt to it's internals but this makes it a much more pleasing experience.

[dynosoar1]

Originally Posted by nb6179505

No wevo?

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I've heard great things about the Wevo and read many threads but honestly the price point is a bit too high for me for what you get. I like the idea of keeping everything porsche with the FSS kit but also have driven the Rennshift and was very impressed by the feel. I'm not dead set against Wevo if people feel it's superior to the Rennshift and FSS kit with seine gate set-up.

[fred cook]

I have the factory short shift kit in my SC. Seems to work quite well and made a significant reduction in shift length. It is spring loaded to center.

[anglophone1]

Originally Posted by winders

+1

+2 and I had a Wevo before.

[merlinfe]

Dynosaor,

I've driven a stock shifter, a factory short shifter, and my own stock throw with seine gate shift. If I had it to do over again I would get the Rennshift, refresh all the bushings in the shift mechanism and rebuild the coupler.

The Rennshift is the most complete new parts solution and just looks great naked.

As far as the seine is concerned, it's wonderful if not a little bulky on the outside. That form of gate shifter has been around for quite a while. Robotek made one before seine as far as my research showed. My rubber boot covers the mechanism completely and I've had no problems with ripping. I also slightly modified the seine with tighter tolerance springs and "blueprinted" the shifter by sanding and tightening the inside bits.

I would avoid the short shifter. It just made things too tight and (for me) always felt the transmission syncros were under more stress. Maybe just my imagination.

There's not much you can do to improve the ergonomics in the early cars so improving the shifter does pay huge dividends.

As always, try different stuff to see what works for you. We are all different in our approach to perfection here.
-Steve

[unclebilly]

You know that the Porsche 901, 911, 915, and 930 transaxle are slow shifting units? This is why they were designed with such a long throw.

If you put in a short shifter, you really can't shift any faster. These will never shift like a Toyota.

[Trackrash]

I have the factory short shifter. Not the kit, but the shifter used in the last of the Carreras, before the G50.

I added the Seine gate kit. It is solid and precise. Spring loaded to the 3-4 plane.

Does anyone know if the factory short shift kit will make the old 915 shifter the same as the newer 915 short shifter? I have heard conflicting accounts on this and that the newer 915 shifter is different and superior to the factory kit. Is this true?

[kenikh]

When it comes to the 915, the one thing that I can say without a doubt is that the number one best upgrade you can do to a 915 is add the Wevo gate shift kit, the one that is internal to the transmission. It makes the transmission feel like a G50. Worth every penny. And that is with the stock long throw shifter.

[Reiver]

Originally Posted by kenikh

When it comes to the 915, the one thing that I can say without a doubt is that the number one best upgrade you can do to a 915 is add the Wevo gate shift kit, the one that is internal to the transmission. It makes the transmission feel like a G50. Worth every penny. And that is with the stock long throw shifter.

I suspect that is nice...but, actually, I like a 915 to feel like a 915 as it takes a certain amount of skill and adds to the sensory enjoyment of the car.

The Rennshift does not detract from that and enhances it with positive selection within the parameters of the 915 personality....dog teeth and all

[911pcars]

Originally Posted by Trackrash

I have the factory short shifter. Not the kit, but the shifter used in the last of the Carreras, before the G50.

I added the Seine gate kit. It is solid and precise. Spring loaded to the 3-4 plane.

Does anyone know if the factory short shift kit will make the old 915 shifter the same as the newer 915 short shifter? I have heard conflicting accounts on this and that the newer 915 shifter is different and superior to the factory kit. Is this true?

Can you describe, "the newer 915 short shifter"? The last factory-installed short shift version was in 1986, a M241 option at the time and the kit available over-the-counter since then. AFAIK, the current OEM Porsche Factory Short Shift kits from various internet sources are the same design, albeit random QC issues.



Sherwood

[Trackrash]

Originally Posted by 911pcars

Can you describe, "the newer 915 short shifter"? The last factory-installed short shift version was in 1986, a M241 option at the time and the kit available over-the-counter since then. AFAIK, the current OEM Porsche Factory Short Shift kits from various internet sources are the same design, albeit random QC issues.



Sherwood

Not sure if my description is correct, but the factory installed version from '86 is what I am referring to. My question is, will the kit update the older 915 shifter to be the same as the '86 version?

[Reiver]

Originally Posted by 911pcars

Can you describe, "the newer 915 short shifter"? The last factory-installed short shift version was in 1986, a M241 option at the time and the kit available over-the-counter since then. AFAIK, the current OEM Porsche Factory Short Shift kits from various internet sources are the same design, albeit random QC issues.



Sherwood

That looks like it would have a preload from only one side?

[uwanna]

Originally Posted by Reiver

That looks like it would have a preload from only one side?

You are indeed correct. The short shifter does not add any self centering
feature as was indicated earlier in this thread. All the kit does is shorten
the stroke!

[uwanna]

Originally Posted by merlinfe

Dynosaor,

I've driven a stock shifter, a factory short shifter, and my own stock throw with seine gate shift. If I had it to do over again I would get the Rennshift, refresh all the bushings in the shift mechanism and rebuild the coupler.

The Rennshift is the most complete new parts solution and just looks great naked.

As far as the seine is concerned, it's wonderful if not a little bulky on the outside. That form of gate shifter has been around for quite a while. Robotek made one before seine as far as my research showed. My rubber boot covers the mechanism completely and I've had no problems with ripping. I also slightly modified the seine with tighter tolerance springs and "blueprinted" the shifter by sanding and tightening the inside bits.

I would avoid the short shifter. It just made things too tight and (for me) always felt the transmission syncros were under more stress. Maybe just my imagination.

There's not much you can do to improve the ergonomics in the early cars so improving the shifter does pay huge dividends.

As always, try different stuff to see what works for you. We are all different in our approach to perfection here.
-Steve

Steve,
I also have the Seine gated shifter installed in my 915. I have the polished and "blueprinted" complete unit that Sherwood @ Seine offers.
In addition I added the factory short shift kit, BUT I also added a 6"
extension to the shift stick. The longer stick puts the shift knob right where my hand falls on it and feels more ergonomically correct to me.
The longer stick also negates the short shifter problem you mentioned of a "too quick shift" due to the change in geometry and longer throw. It now shifts just like an original shifter without a SS kit.
Sherwood has now offered the shift extensions for sale and indeed
uses one himself. John Walker at one time showed one he made for himself. The nice part of the longer stick is you no longer "reach" down to the shifter.
My setup shifts like buttah and is one of the best improvments I have ever made to my car.

[Reiver]

Originally Posted by uwanna

You are indeed correct. The short shifter does not add any self centering
feature as was indicated earlier in this thread. All the kit does is shorten
the stroke!

Fred said it was 'spring loaded to center' so I thought he was saying centered by opposing springs.

Does this really speed up shifting or simply give the impression of that?