folding wing 5 speed

They are both manuals, is this a realistic swap to attempt? Would I need to swap the tranny as well? Major wiring issues?
I have access to a 2003 Boxster with a blown engine, and a 2000 S with a salvage title but good driveline.
Thoughts?

Macster

Not sure but I seem to recall the 2003 engine has VarioCam Plus (intake valve timing control and intake valve lift control). The 2000 S engine didn't come with VarioCam Plus.

If I'm right then the car's DME will have to be changed, the code anyhow, to avoid trying to engage low (or high) lift. The timing adjustment may be more/different, too, and if so that will have to be accommodated too.

Pelican Parts web site has a section on engine swaps. This might be covered there.

I've read about owners putting a 3.4l or even a 3.6l engine in a 2.5l car and the 5-speed holds up well. 'course, if you abuse the tranny, hard launches, power/speed shifts, etc., most likely the 5-speed won't last.

Another issue is the 5-speed's gearing is lower (higher numerically). This was to help the 2.5l engine with its lower torque output. The 3.2l S engine of course has considerably more torque (IIRC when Porsche brought out the 2.7l engine the 5-speed tranny was geared a bit higher because of the additional torque provided for by the 2.7l engine) and the gearing could be a bit too low for your taste.

If you can overcome the engine controller issues, and absent negative recommendations say from the Pelican site regarding using the 5-speed, you can start out using the 5-speed and drive the car as long as the tranny holds up. If it goes out then you can source a 6-speed.

Needless to say the the transmission fluid should be renewed -- just use the Porsche stuff -- and the clutch should be new unless the clutch in the roller is in real good shape/condition.

PelicanParts.com

I believe if you replace the DME, immobilizer control unit with the key head, instrument cluster, and the A/C control unit it should work. As long as the transmission stays with the engine it came off with it will be fine. Wiring is going to have to stay with the engine as well. If you are serious about this you might be able to speak with a specialist over the phone that can help you out. Good luck!

-Luccia

folding wing 5 speed

Thanks for your replies, I'm gonna cry uncle and not even try to put this together...Its a shame these engines seem to spontaneously combust...

txhokie4life

Find a 2002-2005 Motor, S or 2.7 and you won't have to change anything.
I would add the 3rd radiator for the S engine

Mike

Qmulus

That would be '03-'05 with with the updated, continuously variable variocam system, three chain engines. The '02s still have five chains and on/off variocam system.

nismopowered

I have a 2005 987s and it's the 3 chain but is not variocam plus. Only has one solenoid on each valve cover not two like my 3.6 engine. But I seem to recall something about the way the earlier vario cam worked was different than the newer vario cam?

Macster

Yes. VarioCam Plus didn't arrive in the 987 model until MY 2007.

My post then in which I believed the 2003 engine has VarioCam Plus is inaccurate. VarioCam Plus showed up on the 2003 Carrera engine.

At the risk of posting more inaccuracies, I believe at some point -- and it may have been for MY 2003 -- the Boxster VarioCam system changed from a simple system, a system in which the intake valve timing could be advanced (actually returned to its normal timing) or retarded to a more complex system one that allowed for variable valve timing between fully advanced or fully retarded. And furthermore, the amount of timing adjustment I think went up/was increased too.

Qmulus

I fixed my post above.

One big problem is that an '03 Boxster engine control system (ME 7.8) could not be used to control the earlier Variocam system on '00 engine that used the ME 7.2 system. The later system is continuously variable whereas the earlier system was simply an on/off control. There are other differences, like a non-return fuel system, etc., that would be issues to overcome.

If you tried swapping the engine control system with the engine you would run into have to match that DME to the alarm/immobilizer, which could be an issue. Then there is the problem with emissions inspections, which technically don't allow you to do backdate engines/engine controls.