Tip transmission model code

[Jinster]

My Boxster tip transmission was in for a complete overhaul recently. The owner of the workshop took me on a tour of his facilities and explained a lot to me about how the ZF transmission housing are all the same for similarly powered cars.

I am contemplating a 3.4L swap into my Boxster, but I was wondering if my tip would hold up.

The Tip transmission model number is 5HP19 on my Boxster. According to the transmission workshop owner, that number should increase as the power requirements get bigger.

I was wondering, what is the model number of the tip transmission in a 3.4L 996? It's written on a green plate on the transmission, like shown.

[D_Man]

Hi

My 1999 996 has a A96 Tiptronic transmission, your car takes an A86 , knowing porsche I would bet these two are not compatable. I would bite the bullet and go get the appropriate transmission for your motor you are going to use. BTW you might consider going to a six speed manual transmission. The Guys at LA dismantalers can help, they get all the porsche wrecks. (818) PORSCHE (767-7243) If I needed a used transmission this is where Id go. http://laporsche.com/

Sorry I could not be more help, Im sure we have people on this board that can answer the question exactly.

Good Luck

D

[Loren]

Here are the model numbers for the Boxster and Carrera Tiptronics. Wouldn't the drive direction in a Carrera Tip be opposite what it is in a Boxster Tip? I think so.

[Jinster]

Thanks for the replies.

Loren, it would be. But I understand that not to be a problem due to the rotation of the 3.4L engine when you replace the stock 2.5L, is that correct? I mean, otherwise all those 3.4L converted Boxsters would be running backwards, tip or not, right?

When I was talking to the automatics trans specialist guy, he said that ZF transmissions are basically all the same across all European cars, except for Merc who makes their own transmissions. Otherwise, similarly powered cars use similar ZF transmissions. For example, the VW Passat and Boxster uses exactly the same transmission housings, the only difference would be the gearing - to take advantage of the power curves of each engine. The markings on the outside of the transmission - in the case of the Boxster and Passat - is 5HP19. And he said that number (19), increases as the engine's power output increases. For example, a turbo V6 would use a 5HP23.

I have heard stories how the A86 and A96 transmissions are very similar. I was basically wondering what the ZF transmission model number is on the A96, so as to determine, roughly, how much difference is there between the transmissions on the 986 and 996 other than gearing ratios, with a view to see how well the tip transmission would hould up to a 3.4L conversion on a tiptronic Boxster.

Edited August 7, 2005 by Jinster

[Loren]

No, the differential is what makes the final drive go the right direction. You put the bevel gear on the opposite side. An A96 Tip will have the bevel gear on the wrong side for a Boxster - so either you change it (if possible) or you use an A86 Tip. If you get a Tip for a Boxster S I think you would be fine.

[Jinster]

Loren, I think you misunderstood me. I have a Boxster with the stock A86 tip. I plan on putting a 3.4L into it. So the direction should be right, right? :)

I was merely trying to compare the differences in the strength of the A86 and A96 Tips by finding out the ZF Trans model number of the A96 Tip. The A86 tip I have is Model 5HP19.

[Loren]

Loren, I think you misunderstood me. I have a Boxster with the stock A86 tip. I plan on putting a 3.4L into it. So the direction should be right, right? :)

I was merely trying to compare the differences in the strength of the A86 and A96 Tips by finding out the ZF Trans model number of the A96 Tip. The A86 tip I have is Model 5HP19.

Swapping engines will make no difference in direction.

The strongest Tip is the A9650 Tip used in the Turbo and later Carrera's. It can easily handle over 500 bhp.

I still think the A8620 Tip (from the Boxster S) will easily handle a 3.4 liter.