Castrol

Hello Bill, sorry if I shared your pic but since it was already on the forum........

If you compare your car to "standard" 993 3,6 -2005. what parts where changed/included in the X51 option?

Bill Verburg

It's not mine, MY97 means model year 1997, the car that goes w/ the tag you posted is a MY97 sunroof coupe built for the german market, it appears to have lots of leather & wood type options, sort of a burgermeister version

the last aircooled MY was 98

993 3.6 were available for
MY94 & 95 w/ non vram
MY96 -98 w/ vram
MY95 -96 w/ M002 or M003RS package

water cooled started w/ MY99 996

JasonAndreas

X51 for the 993 was Porsche part no. 993.100.980.01 while
X50 for the 993TT was Porsche part no. 993.207.983.00 / 993.207.983.01

You should be able to find the individual part number breakdowns in an old version of PET.

Bill Verburg

The part #s I quoted are the only n/a ones from the Techquipment catalog that is in PET6, and yes there is a break down of the individual compontents.

These were all added at the dealer and would not show up on the vehicle sticker

I contacted Adrain Streather and here is his reply
"Option X51 was created for the 996 normally aspirated
series engines because the engine modifications required were carried out
during the engine build process.
Previous company policy for NA (M64 non-turbo and before) engines was that
the engine upgrade kits were sold as aftermarket items through Porsche
Exclusiv and Porsche TEquipment and installed after by the Porsche dealer
that sold the car in the first place. This is why the Andial engine upgrades
for the 964 Turbo S2 were never given an option number. The original 996
Porsche Sports Exhaust system (fitted to my 996) has no option number
because it was delivered with the car to the dealer as a kit and installed.
The 3.6 litre 996 version does have an option number because it was factory
fitted.

The reasons for this were simple. The 911 had to meet certain standards to
pass through the production line. Actual engine modifications would change
these parameters for a standard model and seeing as there was no sub model
993 NA with an engine upgrade it had to be done after delivery.

Option X50 for the 993TT created a new sub model the 993 Turbo S and did not
require engine modifications, so it could be factory fitted.

Anyone that claims they have option X51 fitted to their 993 is telling porky
pies. They may well have an engine upgrade kit fitted, but it was fitted
after the car was delivered, usually after actual delivery to the customer,
for legal reasons.

However, also keep in mind that engine upgrades were done by many third
party companies, but the next buyer was told it was factory fitted. He or
she didn't know any different of course, didn't know how to check until I
came along and the story of factory fitted engine upgrades was born. Also
some current owners feel left out and invent stories to justify their
positions or the current condition of their car. I have even seen a 993 with
a dealer created options label added to the original at the request of the
customer. However, Porsche build specs for that specific VIN will not show
the options installed. At one time, but no more; blank options labels could
be purchased and typed out. This was sometimes done after an accident and
the luggage compartment lid was replaced or repainted by certain dealers
especially in California.

I hope this helps, but one last thing.
Option X50 was for the 993, 996 and 997 turbocharged engine upgrades. Option X51 was for the 996 and 997 normally aspirated engines. What's in the 993 book is actually a typo error for option X51. If you get
my Porsche codes book you will find it all correctly listed. Ciao, Adrian."

Jason what version of PET did you get those part #s from?

Castrol

But how does that add upp with your VIN sticker Bill?

I does say X51 right?

delanobe

FYI

My car has this "X51" option but it's not on my vin.

My car came from the special wishes department so maybe that explains something?

The combo with the 3.8 engine and vesuvius color on a nb makes it rare I think.

Bill Verburg

In Adrian's reply he mentions seeing a sticker made up by a dealer

Adrian's reply totally jibes w/ my understanding and the parts #s I have available to me.

Jason A. does have better access to info than I do and has piqued my curiosity I've looked through the 3 RoW versions of PET that I have and can' find his part #s. Haven't looked in the US versions yet, but it's doubtfull that they are there as the US is generally excluded from the more desireable parts.

Bill Verburg

How do you know it is X51?, again Tequipment or Special wishes were the way these were obtained, then installed after sale at the factory , a dealer or 3rd party shop.

delanobe

That's why I put the "".

The X51 is not on my vin because it doesn't exist on 993's.

The 3.8 motor package was installed in the special wishes department before delivery.

Castrol

Delanobe look at page 1 in this thread. A photo of Bills VIN, with X51 included in the options.

delanobe

I'm going to check what is on the original invoice.

Castrol

Any success?

delanobe

On the invoice is stated 3.8 motor upgrade. Cost 18.000€

beers4all

Interesting thread. So I'm assuming from what's been stated so far that the vehicle linked within is NOT a "factory X50" option as stated. Interesting to note that if you view the COA, it makes no mention of this option.
http://rpmsportscars.com/door28.htm

V

I think what Adrian has said re X51 in untrue. I never thought I'd say this as he seems to be a guru when it comes to all things Porsche. I've seen several cars in real life with "X51" clearly written on the sticker. This is what fellow RLer "geolab" had to say about the X51 package a few years back:

"...Yes the Carrera's came with the option X51 in the EU.
Engine code is

M64.51 3.8L 220 KW

Two important things to note:

X51 engine is not at all a Carrera RS engine, but has the same cylinders-pistons-etc. RS engine code is M64.20 That is its a beefed up carrera engine with respect to bore only. The same block as RS.
RS has lightweight crank-cam etc etc. though it has the same Hp, the RS engine is race-tunning ready while X51 is not

X51 option is only a sale argument if it is noted on the hood sticker, and not a later upgrade.
Porsche could upgrade your carrera today with X51 option which is still on the options list,
but you will have no proof of the upgrade for reselling purposes.
If your seller states X51, he is asking a relevant price because of that.
Ask him if X51 is on the sticker, if not, there is no reason for paying higher than a normal carrera engine, unless you give the VIN to Porsche and ask them for the installed options list.
Usually they won't give it unless the car is through their network.

On the other side, some did install the X51 for real, and could not prove later they had it.
There is zero sign on the car, it is only the piston - bore-etc..."



It's really strange that some say the X51 option never existed for the 993. I've seen (and driven) a few of them during the last quople of years. They do exist over here in Europe