I see a limited amount of options out there to make significant power gains, it seems my ideal would be to swap a motor from the new GT3 into a
2008 cayman s
. come winter when the new GT3 is on the market will this option be possible and what do you think it would all cost? Also how can I find more information on the X51 specs?
This has discussed a few times before - you might want to do a search and see if you can find the threads.
In a nutshell, transplanting the present GT3 motor is very difficult - the current GT3 motor is based on the old split-case air-cooled engines used in the
911s
from 1963 until 1995. This motor is called by some the GT-1 motor. It is presently used in the GT3, GT2 and
911
twin turbo cars. The motor mount pickup points are completely different and would need to be completely re-fabricated You'd be turning the engine around to face forward instead of it's present backwards orientation, so there would be some serious transmission work to be done, unless you were OK with just one forward gear (that being reverse on the GT3). Obviously, you could use the present transmission, but the bolt pattern/mating system on that is completely different, too. Then you would need to transplant the electronics, beef-up the brakes a whole lot, and well, who knows what else. If money was no object then anything can be done.
I think you would be better served with transplanting a new DFI
911
motor - motor mounting points are the same, the new 2009+ motors also have the correct match-up for the transmission, and they're not as tall as the '05-'08
911
motors because of the redesign eliminating the intermediate shaft. It is also just a better motor all around than the 05-'08s. One of our sponsors, Softronic (Scott Slauson) is doing these transplants, you might want to contact him to see what else is involved.
There's been no announcement yet of an X-51 package for the new DFI engines, but it usually boosts the HP by about 30 HP. Scott can probably attain that through ECU tuning, better intake, and free-flow exhaust tweaks, etc.
brad
Actually the new x51 package for the DFI 997 is now listed as an option in "build your own" on the Porsche UK web site...so we should see it here soon.
Pricey though 8,066.00 Pounds
"Engine upgrade to 300 kW (408 bhp). Comprises modified cylinder heads, carbon-fibre air filter casing (upper part), new double resonance intake manifold, sports exhaust system featuring specially designed twin dual-tube tailpipes and modified engine management. Note: also available in conjunction with
PDK
"
Thanks, I have read about the experiences of x51 swaps but have not found any threads where a 3.8l dfi motor was used. From what you say it does sound optimal, but I'd like to know how seemlessly the experience has been for others.
I wish they offered that option for the
Cayman S
Well this one is almost as good, and it appears to be ready right now.
2008 Cayman S X51 - Classifieds
There is also the catback exhaust that TPC is making. Schwabe is having a lot of power to put on the road!
yeah... seriously, jokers. And for a lot less money. BTW, a 997.1
911
X51 motor only makes ~320 at the wheels.
That would be awesome as a track car. Not so sure as a DD.
i would like to know if a s85 bmw engine would fit in the
cayman
just curious.
I just saw a video on installing a GT3 motor into a Carrera S and believe it or not (like you said) it’s not a drop in experience. I’d go for the 3.8 or 4.0 Carrera S motors from the 991. I’ve seen a few
This is a necro thread some kid dragged out. The post you are replying to was made 14 years ago
It was early… what can I say 🤣
Older threads (unless a sticky) should expire
Oh, I wasn't faulting you. It almost got me as well until I looked at the date of the discussion. More to warn others not to jump in and start the convo back up again with people that haven't even logged into the site since 2010
