996 engine into a Boxster?

[Roleta]

Hey there , Boxster people!

I have a 2000 2.5 Boxster and I was having big fun driving this car until I drove a 3.4 Cayman a week ago and from that time I just cant fight the thought of putting a 3.4 in my Boxster...

I was wondering if you could give me some advice about fitting a 911(996) 3.4 engine into the Boxster because I found a wrecked one in near Germany for less than 7 grand which I would love to spend to get the Boxster moving like the Cayman.

I know that maybe fitting a Cayman engine would be easier but those go for 16k and more (wrecks) and thats too much for me right now.

Thx

[Pat]

You would be well-served to search this site, as well as Flat 6 Innovations.

[JFP in PA]

A 3.4 from a 911 will fit, but will take some work. Because the intake is taller, the engine mounts need to be lowered slightly (I think someone is making a kit for this), and depending upon the year, you will need to swap the DME. There will also be assorted wiring and plumbing issues to deal with as well, but this swap has been done several times, and one was written up in "Excellence" magazine not too far back.............

[JAAY]

I think it will fit.

[landrovered]

If you stuff enough money into the intake manifold it will fit right in no prob...the 3.6 conversion on my car done by the PO was $21k.

[BudmanV24]

Installing a cayman engine into your 2000 Boxster would be difficult. Easiest swap would be a 3.4L 996 e-gar carrera engine. Feel free to pm me if you have any specific questions regarding the swap.

[poor-sha]

Hi there - new to this forum. I have an '03 Boxster S with the 3.8L 997 S motor in it. Roock did the conversion a few years back. It was pricey and a real pain to get all the electronics sorted out but it turned out very nice in the end.

[Cloudsurfer]

If you have a 2000 it's a 2.7 or 3.2. If you get an e-gas 996 3.4 motor it will go semi easily. The DME is the same and you'll just need to flash the 996 3.4 program to it (you will need access to a PST2 to do this). Your Boxster harness will plug right onto the 3.4. That solves the electronics side.

Now, to get the motor into the car physically, you will need to lower the engine a bit to clear the manifold under the engine cover. Most people use spacers at the front engine mount, and 964 mounts for the tranny.

You'll need to carry over some pieces from your Boxster motor (oil fill tube, dipstick tube, a couple coolant housings, and hoses) but it's not too bad.

The engine will bolt up just fine to your transaxle, but you'll likely want a stronger clutch.

Good luck!

[Aron in Toronto]

Here is a link to a tech article that covers many of the issues with the conversion you are interested in.

http://www.pelicanparts.com/techarticles/Boxster_Tech/11-ENGINE-911_Engine_Swap/11-ENGINE-911_Engine_Swap.htm

[clickman]

I've been led to believe that the early 3.4 M96 is even more problematic than the 2.5, 2.7 or 3.2. Does anyone have any info that supports or refutes that?