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Old 01-30-2019, 02:30 PM   #1
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2002 Boxster S manual to auto conversion possible?

Yes, I know...what am I thinking asking if converting from the G86/20 to the tiptronic is possible. I'm getting the car back on the road for my wife as she has fallen in love with that little boxster and she is not good with manual trans. She will enjoy the heck out of it with the auto. 34 yrs of putting up married to a gearhead deserves a "medal" with an automatic...and I need that 6 gear for another project.
So is it a nightmare conversion with the inevitable trans controller, etc????

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Old 01-30-2019, 03:40 PM   #2
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This is all just a guess. I did a Honda once and it was a lot easier than a Boxster...

A quick search of here, 6Speed, Rennlist, and Renntech will give you the best advice: Sell the car, Buy a Tiptronic. That same search will probably not yield any 'build threads' of people who have completed the task.

If you insist and persist, you will probably be best served by having a wrecked Tiptronic car to swap parts over from.

A few quick thoughts:
Needs: shifter & linkage, cluster, engine/transmission harness, matching set of ECU and TCU & Central Locking unit, Steering wheel, Pedals, Transmission cooling lines, Heavier springs (per stock configuration), Belly plate, mounts, and probably lots more good-to-have stuff like venturi hose to brake booster, heavier starter & alternator,...

The engine harness from a Tiptronic car will have most of the needed wiring integrated. Other thoughts on wiring: Shifter interlock - maybe re-wire from clutch switch, steering wheel wiring, probably add a few ECU to cluster wires.

The worst part of the Honda swap was pedals. hard to reach, hard to wrench. Mine was actually auto to manual and I suppose you could leave the legacy 'third pedal' in place. ...No, not for a 'wife's car'.

Don't Do It. But if you do, please post it all here, with pics.
I am not an attorney, mechanic, or member of the clergy. Following any advice given in my posts is done at your own peril.

Last edited by 78F350; 01-30-2019 at 03:42 PM.
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Old 01-30-2019, 09:07 PM   #3
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Figured it would be a huge task...thx for confirming my suspicions. Now that we are in the age of electronic control for everything , hotrodding and swapping is sure a lot harder!
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Old 01-30-2019, 11:12 PM   #4
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100% for sure sell and buy a tip. It’s just not worth the braindamage and $$$ at the end of the day. Plus, it would be considered a “hack” and the car’s value would be hit for sure. (Which is why it’s just not worth it)
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Old 01-31-2019, 06:36 AM   #5
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Originally Posted by 78F350 View Post
Don't Do It. But if you do, please post it all here, with pics.
Yes please! We like this kind of porn

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