EMan 928

Any body have an idea?

ROG100

Plenty of new ones available for $8500 - that is the top of the price range 8>)

ptuomov

From the engineering perspective, it has value as a cautionary example of how not to design a crankshaft.

With restoration loonies it seems to be the case that the worse the engineering the more desirable the piece, so it might be worth a lot to someone.

77tony

That low mile GTS motor for sale a few weeks ago sounds even better now. T

GregBBRD

Anyone that needs one would break their wrist getting their wallet out at 2K.....but you are probably going to have to wait until you find someone that actually needs one.

Cheburator

I would disagree with the above statement - Porsche DO NOT HAVE ANY new GTS cranks for sale at any price.

However...

Porsche AG would take your 70,000 miles GTS crank, $3200 at current exchange rates and supply you with a refurbished GTS crank with a set of genuine 0.25 matched undersize main bearings and 12mths worldwide warranty.

Which in my book is not bad against the $2000 used price and no bearings to go with it, plus unknown provenance...

ROG100

Alex I respectfully tell you are so wrong my friend.
I only do this for a living and live on the Porsche system

PART NUMBER 928 102 028 03 Quantity 25 sitting in Stuttgart as we speak.
I just placed an order for one and Porsche confirmed availability and shipping (cancelled quickly) this makes sure they actually exist.

Porsche also have 3 x 928 102 901 EX remanufactured cranks in Germany at $3500 each - again I ordered one to confirm they exist.

Cheburator

Ok, I take my words back on the lack of availability of new ones. Last time I spoke to them, Stuttgart told me they had none in stock. And it was them who offered me the EX crank as the only solution for my destroyed crank. I was their guinea pig as they only started offering EX parts in early 2011... You can also do better than $3500, but I am sure you already know that better than me

GregBBRD

I much rather have a used std./std. crank than a refurbished .25mm under crank. The original heat treating on the bearing surfaces is still all there, you don't have to worry about the tiny little chatter marks in the radius from regrinding, etc.

Cheburator

With all due respect, I would rather install something which is warranted worldwide for 12months, with properly matched bearings (the ones on my crank were stamped Sep 1996 and Made in W-Germany), which is perfectly straight, than something which has come out of a car, with unknown milleage, no bearings, no idea if straight etc... Buy cheap, buy twice could well be applicable here...

ptuomov

My information is that the induction hardening, such as what was put on 928 cranks, is at least 1.5mm deep. Nitriding like what many stroker cranks have is much thinner. That doesn't mean that nitriding is worse, just means that the induction hardened cranks can be turned down significantly more before one has to worry about running thru the hardening.

(Caveat lector, everyone do your own research before doing anything based on the above.)

BIG 928

they wasnt available through the uk dealers when i built a new engine in 2007. maybe they made another batch, and thats where the confusion came from guys? ive got a spare one somewhere, plus the one in my racecar.
you are right greg people will rip your arm off if they need one.
gts parts are harder and harder to find over here, especially engine parts or manual gearboxes for me to break!

GregBBRD

I bow to your experience, knowledge, and success ratio.

Cheburator

That's below the belt...

But you know that in this particular situation I am right.

danglerb

Seriously, you think a warranty on a crank is better than having standard sized bearings and meeting original specs with a used crank?

Surely all the cranks returned to Porsche for "refurbishing" are the result of some catastrophic engine failure sufficient to damage the original crank. I don't know why people would even consider them as part of an engine rebuilding.