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Engine type query US vs ROW

Jamie Summers

Jamie Summers

PCGB Member
Member
Up to now I have been reasonably convinced that my '89 German supplied 3.2 had a ROW 231bhp non-cat engine (930-20 type number), (though without being able to look at the engine I can't absolutely confirm this). However I'm now not so sure. Someone has suggested to me that '88 and '89 German cars were fitted with the lower compression US spec 930-25 engine with only 217bhp. This is further backed up by the fact that the brown jumper cable on the ECU was disconnected (should be connected on a ROW car). However my car does not seem to have a cat (conceivable, I suppose, that a previous owner had it removed ?). So all in all I'm a bit confused - any of you stats boffins care to offer an opinion ??

Thanks,

Jamie

Jamie
 
Just to follow up my own post. Apparently the engine type number is stamped on the casing an inch or two behind the oil pressure sender unit. Any clues as to where this is ????

Jamie
 
to the immediate right of the fan Jamie , if you send me the engine no. and the VIN I can probably tell you what it is.
 
Bones,
Thanks, I know that's where the engine number is, but I wondered if there might be a separate 'type number' stamped elsewhere, or will the engine number be 930.20.xxx.xx.xx or 930.25.xxx.xx.xx making the difference rather obvious ???

Jamie
 
Have look in your hand book or under the boot lid - on the paper sticker - the one that has your chassis number. There is an engine code printed there - typical will read 93020-63 and (E to K : production code).

I very rarely come across 93026.

93021 is for cat fitted cars - 84 - 86 - 207 bhp
93025 is for cat fitted cars - 87 to 89 - 217 bhp

93020 and 93026 are both 231 bhp.

I am not aware of the German cars having lower compression (true for USA) but some of the later cars were fitted with cats but engine spec was not altered.

Anyone with a 93026 engine, please let me know.
 
Tony,
Thanks, much as I suspected. I will have a look when I get home this evening. I'm 99% sure my engine is a 930-20 but the various plugs that are connected and disconnected around the ECU are consistent with a 930-25 set up. All very curious .......... I will update tomorrow.

Jamie
 
K programme cars were produced from Aug' 88 - July 89 . Type 930/20 concurs with what I'm looking at and then follows 63K00001-on
 
Bones / Tony,
Right then, done some rummaging around and here are the numbers

Chasis ; WPOZZZ91zKS101597
Engine type ; 93020-63K (as expected !)
Engine no ; 63K01672

so what do you think that should be ?

From one piece of paper that I have (using the various wiring loom connections that are apparent) that makes it a Swedish spec car ???? Yet all the paperwork that I have from first reg in Germany suggests reg'd in Frankfurt 14.04.89 ? Do you happen to know exactly where on the German Fahrzeugbrief the build-date shows. There is a date of 09.06.88 on the inside but sadly my German isn't up to much so I have no idea what it relates to. Certainly the K series engine number would not ite up with an '88 MY car going by your previous posts ? All rather confusing !

Jamie
 
I don't claim to be an expert but reading from Patrick Paternie's excellent little 'Red Book' your chassis and engine nos.match up to make it a K programme car (Aug' 88 - July 89) one of 3,532 coupes.
Try Peter Cook at the club office he's in charge of the archive.
 
Hi Jamie - I'm aware of the reason behind your question. Perhaps we could have an off line conversation- as the chip mod program took another twist...

Please use the mail on my sign off and we can keep in touch.

RGDS
 
I have an original genuine Porsche Technical Information document for the 89 model year that states that T10 (the jumper you are referring to) is disconnected by default on UK 89 model year cars.

This is a change for the 89 model year and differs from the scan of the ecu coding I have seen on the net.

I checked mine and having previously assumed it would be connected, when I undid the tape I found it was disconnected.

Cheers

Andy

Jamie is right its T10 not T28 and I have modified this post accordingly.
 
Andy,
Thanks for that, but just a couple of points. Are you sure we are talking about the same jumpers here ? The T28 jumper is a special adapter cable that goes between the DME and the altitude sensor. The one that (I think) you're talking about is the T10 jumper. This is the brown wire that is taped to the main wiring loom into the front of the ECU. On my car (German '89) the T28 jumper was installed but the T10 jumper was disconnected. The scan of the ECU coding that I have seen is '87 model year I think - and according to that the combination of ECU, T10 disconnected and T28 installed would mean that my car was from Sweden !!!!!! it just goes to show how many different variations there are of these cars from year to year and all have subtle impacts on performance using varying fuel types etc. It really is difficult to know exactly what you've got and over the years undoubtedly previous owners change bits and pieces confusing the issue further !

Jamie
 
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