Sorry to hear of your misfortune, but sounds like a very exciting solution.

IIRC, Itmerc was perhaps the first to do an X51 swap (among other things): http://www.planet-9.com/cayman-boxs...odifications/20940-x51-motor-swap-supercharger-install-widebody-conversion.html

More recently, teoh2005 did a swap as well: http://www.planet-9.com/cayman-boxs...boxster-modifications/52868-3-8-x51-swap-pccb-master-cylinder-3rd-radiator.html

If you don't get response from those experienced in this swap, you might want to contact him for advice . . .

 

Reach out to John/Dave at BGB Motorsports. They know this swap well too and know the 3.8L powerplant very well.

 

I appreciate the plug but we haven't tried this ourselves with the EFI motors, just the DFI motors. We did however have Guy Cosmo's TPC turbo X51 motor 2007 Cayman S in the shop for a bit as I was attempting to data log the car and help the guys at TPC get some additional highway information about mixtures, etc. So i got to run that thing up and down I-95 at a good clip. I also drove this car around Homestead Miami Speedway and Palm Beach International Raceway. Oh yeah, Roebling Road too but don't tell the owner!

More to report from the DFI engine swap project as we get further down the road.

 

Wow, that is going to be $$$!!!

Keep us updated as it goes along.

 

Subscribing to this thread. Let us know all the bits and pieces that go into this swap.

 

also good luck on the swap!

 

Yes good luck and keep us posted on progress!

 

Are reeves doing this ? Or just the RS badging ? Regular Reeves Porsche or their motorsport dept maybe ? If so, good to hear they are open to such things !

 

The 3.8L has been delivered and the car might be done by the weeks end. :cheers: Will keep the updates coming. May also be putting in a performance clutch as well. The original is on it's last leg. BTW, Reeves Porsche service is doing all the work.

 

Wow! Best of luck.

 

Keeping an eye on this thread. Exciting stuff...hope everything works out.

 

I'm keeping an eye on this thread as well.

 

This thing ought to be awesome. Bravo.

 

Cant wait to see how this turns out !

 

The 3.8L upgrade should be done by Tuesday of next week. We decided to upgrade the clutch to a Spec Stage 2+. Almost there...can't wait to report back! :burnout:

 

There was a delay in getting the clutch which pushed things back several days. The bulk of the work was completed last Friday afternoon and Tom from Reeves emailed me a video clip of my car with the new engine in and running! :cheers: Needless to say I was stoked! The car should be ready tomorrow. I will be reporting back this week after I get some windshield time with her.

 

Needless to say I was stoked! The car should be ready tomorrow. I will be reporting back this week after I get some windshield time with her.

You must be like a kid all over again! Your car is going to be awesome and bet you can't wait to get your hands back on it!

 

Well, I picked her up today and WOW! The expected torque difference is verrrry noticeable, especially in the 3,000-5,500 RPM range. Also, the 3.8L produces a much meaner sounding note through the Fabspeed exhaust. I like the Spec clutch but it feels like a slight break-in period will be taking place.

Can't wait for the next track day...Sebring August 20th. That will be her official coming out party and the true test of this upgrade!

 

Awesome! Can't wait to hear your track day review. You'll have quite the sleeper.

 

That's great. Please let us know what else was needed to complete the swap. I'm assuming there were some things other than just the motor and the clutch.

 

We need video or pics or something dying over here

 

...Sleepy's got his eye on the ball---videos are a must:cheers:

 

Keeping an eye on this as well. Congrats.

 

Has Reeves done a similar swap before? Helps a TON if they've had experience with this...

 

That swap seemed to go damn quick. How come?

So icsplz:

 

It shouldn't take more than a couple of days to swap in a 3.8 if you know what you are doing. The hangup points are:

1) Motor mounts - need to change those out to accomodate the taller motor to get it to sit in the car properly.

2) ECU tuning - you can't just flash to a 3.8 flash (probably what the dealer is doing btw) and get the best performance because you still need other things in the car like PSM, etc. to know that it is a Cayman not a 911 and if you simply flash over the Cayman software with 911 3.8 software you will lose some of that and have a less than ideal car. At least one aftermarket ECU tuner has figured this out.

 

Dang. I need to sign up for August 20th just to see this car. Through Chin Motorsports right? Sebring it is....

 

If you are not too far you can drive up to Daytona Beach and see the DFI version of this swap in progress.

987.2 DFI Porsche Cayman S - 997.2 DFI Engine - NO OVERBORING! TO BE CONTINUED!

John

 

Very nice.. really wish I can get to see this in person. Alas, I'll be at Sebring on Aug 6th with ERME instead. Enjoy!

 

Cool.

I would think a conversion kit might be of interest for those who dont want to be a science experiement with ones local workshop. Failing that, an install article would be nice.

Looking forward to hearing all about your Mid mount 911 .

 

I would think a conversion kit might be of interest for those who dont want to be a science experiement with ones local workshop. Failing that, an install article would be nice.

Softronic used to just list conversion software on their website. Now they show a complete conversion kit. I would be very interested in the details of that kit. Maybe someday when a conversion is more than a pipe dream I will call them.
Welcome to Softronic.us

 

Maybe I missed something, but how are you solving the transmission exchange problem?

 

Maybe I missed something, but how are you solving the transmission exchange problem?

I'm not sure I understand your question. They did not mess with my gearbox at all but I did have them drop in a Spec Stage 2+ because my original clutch was somewhat of a weak link.

 

This is exciting news especially for all of us who always wanted to know what this car could do with equal 911 displacement. Did you mention if this motor was brand new or was it coming from an older chassis?

 

If you aren't boring to get a displacement increase are you stroking ?


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