Andrew930

Back in September, I was looking for a 997 to use as a daily. I came across this Carrera on Rennlist that caught my attention.

https://rennlist.com/forums/vehicle-...-out-fail.html

https://rennlist.com/forums/997-foru...s-bearing.html

As the owner of a 997.2 GT3 and .1RS, I wanted something easier to daily drive and at the same time, fun with lots of power! As most 997 owners, I was obviously aware of IMS issues. The previous owner was clearly done with this particular car, but I was actually excited about the new possibilities I was ready to explore.

Long story short, I ultimately decided on a 4.0 conversion along with a few other minor mods and the results are far beyond what I ever hoped for or expected. The 4.0 has loads of power at every rpm and pulls so incredibly strong. I previously owned a 2006 Carrera S and there is simply zero comparison. I am one happy camper!!

Just wanted to thank this awesome community as a source for finding such a car and thought all of us 997 enthusiasts would be glad to see this car back to life, big time!

A few more upgrades coming, will update once completed.

Wasserkühlung

Congrats! Car looks nice. Hopefully those license plate frames keep you out of trouble!

goofballdeluxe

They don't. Cops don't care if you have them these days; ask me how I know

lowbee

Very clean engine bay enjoy your new car. Who did the 4.0 conversion ?

z3mcoupe

Congrats, I remember this car for sale. Post some video of the car in action! I bet it's a beast and please share any specs you have on the motor. Also ^ who did it?

Petza914

Car looks great. Congrats. Garage isn't too bad either

Andrew930

Thanks for the kind words. I am definitely enjoying it, and will try to get some videos soon. Ruben at Avus Autosport did the conversion.

Some of the upgrades include:
4.0 Nickies
Case Halves modified by LN Engineering
Ported & Polished Cylinder Heads
Treated Springs
JE forged Pistons
ARP Fasteners
Carillo Rods
New Crankshaft from Porsche
LN Engineering 2 quart deep sump with with baffle
LN IMS Solution
IPD Plenum
Upgraded Throttle body

dokeeffe

Did you upgrade the 3.6 997.1 engine? How does the power and torque compare to the 997.2?

Sneaky Pete

Very similar build to mine......enjoy the snot out it!!

Andrew930

Yes, it was a 3.6 from a 997.1. The power and torque are very similar between this 4.0 and the 997.2 GT3, but with better driveability.

Thanks!

Blu311

Awesome, congrats, and enjoy!

Backmarker

Cool. Any dyno charts?

stoked_on_spool

Dare I ask how much a conversion like this costs? Parts + Rebuild

I have a 2005 myself and IMS is always in the back of my head.

I bet this thing is just a monster!

Andrew930

Thank you!

Not yet, but we'll be dyno'ing it soon.

It definitely get's out of its own way. Lol. The cost was a bit higher, because of the engine issue. We also opted to do as much as we could, both with performance and reliability while we were in there. All in was about 27k.

4Driver4

Awesome! My 07 C4 case is at the machine shop getting sleeved to 4.0 right now, so this post hits home.
Where did you buy the pistons?