Megashift Trans Controller, Controlling Boxster/996 Tiptronic Boxes? Options

[Chris H.]

Hey All,

I'm working on a solution for a certain large, square German vehicle and wanted to bounce this off of the electronics gurus. Might also be helpful down the road for those who might want to do a tiptronic Boxster trans in their 914s.

So...the challenge for me is that there are only a couple of automatic transmissions that are pointed in the right direction to use in the Vanagon and only one that can handle more than ~150 hp for a significant period of time. That would be the 911 tiptronic. My initial thought was to use a 964/993 trans which does not have a key driven immobilizer. Looking through the wiring diagrams I THINK I can figure out a way to run it with the stock TCU.

But then I found the Megashift trans controller:

Megashift!

IF (big if) I am reading the directions right, it appears you need the shift solenoid configuration (probably more stuff too), and then it should be fairly easy to control.

So the questions are:

1. How easy/hard do you think this would be? Seems like you program the solenoid shift config for each gear, kick down, a few other settings like idle increase, etc?

2. Since the security logic for the immobilizer is not associated with the trans itself, do you think this fully bypasses the immobilizer? Seems like it but I know very little about the tiptronic box.

3. Is there another stock automatic TCU from a VW or Audi that could be adapted to run this? EDIT: The Passat TCU MIGHT WORK. Same trans model #...ZF5HP19... (IMG:style_emoticons/default/idea.gif) (IMG:style_emoticons/default/idea.gif) (IMG:style_emoticons/default/idea.gif) (IMG:style_emoticons/default/idea.gif)

If we can make this work it could be a great thing for those wanting/needing an automatic solution. I'll give it a shot if the feedback is good.

[914forme]

Chris,

Refresh on the -6 is moving forward, lots of parts ordered, and waiting on me to get time to install. Sent a few items out for the Pros at PMB and Tangerine to do their handy work on. It saddens me how rusty the mechanical bits are on that car. I need to post and update to the build. (IMG:style_emoticons/default/poke.gif)

As far as owning every VW you might want, I have a true short list with several that I have owned in the past and wished I never sold.

Karmann Ghia Coupe (IMG:style_emoticons/default/sad.gif) Sold

MK2 Scirocco (IMG:style_emoticons/default/sad.gif) Sold

Would love to get an MK1

Would love a Corrado

A DoubleCab

And a Type 3 Notch

And I would also like a MK1 Puma

I have owned and own several TDIs, still miss my MK3 TDI, lighter than the MK4, and just as much power. (IMG:style_emoticons/default/happy11.gif)



Now for the twist,

All water cooled stuff would be swapped to TDI, all air cooled stuff would be swapped to Subaru. I would love to do a Ghia Coupe with WRX STI drivetrain. Including the rear diff flipped over and run up front. Yes that Makes an AWD Karmann Ghia

I am getting to the age I want to get cars all back together, so the -6, then the EG swap, then something else off the above list. But if a V10 TDI found its way home I would have to keep the VW it came in. (IMG:style_emoticons/default/shades.gif)

Don't get me started on Audi's or Porsches I want to own....