geolab

The part list is a compendious one to show that factory and retrofit engine kits do not have exact identical parts as they explain in the paragraph before the list comparison.
part numbers 993.100.903.00/04 include DME, ported heads, wider valves, plastic trumpets, etc. (basically M64/20 parts) like the M64/22 S kit

Bill Verburg

Maybe I'm blind but I do not see where it says anything about DME, ported heads, wider valves, plastic trumpets, etc. (basically M64/20 parts) like the M64/22 S kit

The vram intakes were on
M64/20 the RS, M64/21 manual trans RoW(OBD1) engine, M64/22 tip trans RoW(OBD1) engine,

M64/23 is US(OBD2 w/ SAI)) manual trans. M64/24 is US(OBD2 w/ SAI)) tip trans

The non vram were on
M64/05 manual trans RoW(OBD1) engine, M64/06 tip trans RoW(OBD1) engine, M64/07 US(OBD1 w/ SAI)) manual trans. M64/08 US(OBD1 w/ SAI)) tip trans

the intake trumpets are incompatible between vram and non-vram there were basic differences in sizing and material between the /20(RS) and other vram intakes as well

there is a more complete kit for vrams that costs ~$16k US which includes;*pistons and cylinders,*o-rings,*cylinder heads,intake valves*,*exhaust valves,*camshafts,*intake connections,sealing rings,*intake manifolds,*control unit,*mufflers,*resistor, pulley, wheel hub. these cyls have the 109mm bases which require boring the case, the cylinder base gaskets are larger and require a groove in the case wall be machined in as well. The parts are all plain RS stuff.

Steve Weiner-Rennsport Systems

Bill,

Don't overlook the RS DME too, which was part of that package.

Bill Verburg

'there is a more complete kit for vrams that costs ~$16k US which includes;*pistons and cylinders,*o-rings,*cylinder heads,intake valves*,*exhaust valves,*camshafts,*intake connections,sealing rings,*intake manifolds,*control unit,*mufflers,*resistor, pulley, wheel hub. these cyls have the 109mm bases which require boring the case, the cylinder base gaskets are larger and require a groove in the case wall be machined in as well. The parts are all plain RS stuff.'

geolab

Maybe you are, stop being an arrogant bill
here is one of the job operations described in page 1 sheet for installing the X51

Bill Verburg

?????

I asked a simple question about info you claimed was present, it was/is not.

Just a further comment at the risk of offending your tender sensibilities

the latest posting offers no info about 'DME, ported heads, wider valves, plastic trumpets, etc. (basically M64/20 parts) like the M64/22 S kit'

I posted some info about the kit you may have been referring to and would welcome info about it but there is no need to get up on your high horse about this.

geolab

All the info for you, even from the factory, is claimed
your questions are always simple, but don't try to take me for granted.

I brought the material, to share it .
You ask for more proof as if I handle after-sale services at porsche.
Well the porsche part number of the 3.8 liter kit, 993.100.903.00/04 is on document.
Can't you call your dealer and ask him the details of the part number ?

S
It is not a question of sensibility but rather decency is required, maybe I have the material and I don't want to share it .
I won't share DME material for example, x51 non-vram DME or any other

so keep cool

timothymoffat

George, thanks for further info on the mysterious X-51 option. I've been curious about the motor option since reading about it in Christophorus and Auto Motor und Sport in late 94. Other than those two articles, there isn't much info out there. Cars do pop up from time to time with the elusive X-51 on the options sticker but it doesn't seem to get much attention.

To Bill and George, your deep knowledge of these cars is a tremendous asset to this forum and greatly appreciated.

geolab

correction, Just for the record:

993.103.915.70 piston cylinder set have the 107mm slip in bases, no case boring

X51 kit for M64/21-
part number 000 044 100 00 (no retrofit anymore, designation part number falls in repair kit cat.)

993.102.050.41 pulley
993.106.051.80 wheel hub
993.103.915.70 piston cylinder set slip in 107mm
999.707.152.40 oring
993.104.035.44 cylinder head
993.105.409.42 intake valve
993.105.419.42 exhaust valve
993.105.246.41 camshaft
993.105.247.41 camshaft
993.110.722.00 intake connection
993.110.723.40 sealing ring
993.110.181.43 intake manifold
993.618.124.85 control unit
993.111.045.10 muffler
993.111.046.10 muffler
993.618.124.78 resistor

this kit could be ordered in three different versions, the above, version for option M529 and for 97- tiptronic

Cupcar

Thanks Geolab for the M64.05 non-Varioram engine power kit. It used to be listed along with the M64.21 Varioram engine power kit in the Tequipment catalog. The power was shown there as well as parts list however I wondered about the other details.

Clearly from the statement about the "Exhaust Values" being the same and no DME part number shows that the standard DME was used for the M64.05 kit and the stock DME will work with 3.8 liters and RS cams.

Cupcar

Tequipment part numbers for the 1996 and later Varioram engine Powerkit, part number 000.044.100.00 is/was available from Porsche at a list price of $20,691.91 a year ago. This is the kit with DME, heads, cams, manifold etc.

For non-Varioram cars Powerkit part numbers 993.100.903.00 and for A/C cars it is 993.100.904.00 (crank pulley different to drive A/C) are NLA from Porsche.

geolab

I went and installed an old PET to check the M64.05 S kit, and it states what the document details.
No DME no heads.
Anyway, maybe it is so, but what made me think that both kits had as many parts is that:
1-Job 15 70 20 76 talks about changing heads and valves.
2-DME coding of the M64.05 S 2Pin in the above DME doc. is different than the regular engine. But maybe both DME's are the same, I do not know
3-Price of the 993.100.903.00 and the 000 044 100 00 was 10000 and 10800 euros respectively in 2002, so not that big difference.
I will look into it further and will ask for documents
all in good health

geolab

Here is a document that for the X51 engine kit with tiptronic gearbox, a conversion to the X51 needs the tiptronic DME reprogrammed.
.
.
.

appear

Thanks for sharing geo!

Floodj

Very interesting, thank you for posting!
Does anyone have to power curves of the standard, X-51, and RS engines.
--Joe