944 2.5 cnonversion to 3.0 back to 2.5

[binsie2003]

Hi,

My neighbour has recently acquired a late (1988) 944. Which has had a 3.0 installed due to a previous engine disaster. The 3.0 litre has now also expired with a broken cam belt. I am told the original conversion included the trany and most probably the DME???

The plan is to donate a strong 2.5 engine, trany and 2.5 DME to return the car to its original 2.5 state.

Questions:

Would the DME at the time of the 3 litre conversion have to have been changed due to the different engine management requirements?

If so would this have entailed chopping any of the DME wiring or is it plug and play?

Would there have been any mods to the engine wiring in the engine bay?

Is the throttle cable going to have to be changed back for the 2.5?

I'm sure there are more questions I'll post as I go. Anyone who knows about how this has been done please chip in with any useful info and words of encouragement!

I look forward to hearing from you :0)

Regards

Steve

[binsie2003]

I know a 3 litre twin cam when I see one

[binsie2003]

Richair said:

speedyman said:

Richair said:

mollytherocker said:

Porsche didnt make a 2.5 16v. There is the 2.7 and then the 3.0 in the S2 and the 3.0 in the 968.

They did, the first 944s was a 2.5 16v.

They did indeed, I know because I had one. The 944 S1 was built from 1986 to 1988, follow on model was the 3.0 16v 944 s2

Oh and just to close the loop on this, the 2.7 was an 8v.

He's right you know, and an engine number will tell me all I need to know.

I only run a M44/50 engined Turbo myself, never been a fan of the 16v set up. Its my neighbours project I'm just lending an eye and hand!

[binsie2003]

GC8 said:

binsie2003 said:

He's right you know, and an engine number will tell me all I need to know.

I only run a M44/50 engined Turbo myself, never been a fan of the 16v set up. Its my neighbours project I'm just lending an eye and hand!

Id be interested to see this, along with the build sticker, VIN and date of production if you have it.

Are you the Police LOL

[binsie2003]

I was only teasing, I guessed you were. I reckon I could learn a lot from you as I always knew my car was an early example but 2 years ago I was a Porsche meet at Hedingham Castle when a knowledgeable fella approached me and declared he had never seen an earlier 944 turbo. My registration document says it's an 86, but I rummaged around in my box file where I found the original West German registration document (its a LHD import by the way) which shows its manufacturing date as 26/04/85 and registration as 29/10/1985 the Porsche certificate of authenticity records it as an M44/50 engine. I believe this car to be one of the original 178 first manufactured and the M44/50 being one of only 400 engines manufactured. Perhaps you can correct these figures if I'm mistaken? I have owned the car since 2006. I'm thinking this is quite a special car, and was wondering how many 0f the original 178 were left?

Regards

Steve

[binsie2003]

I'll check it out when I get in, the German registration document does record it as manufactured in April 1985.

[binsie2003]

Last 5 numbers of VIN read 40185.

Regards

Steve

[binsie2003]

10th character is 'G'

[binsie2003]

Hmmmmmmmmmmm 'G' indicates 1986, but the year of production clearly says 26 April 1985??

[binsie2003]

Factory fitted with FUCHS and Bilstein Sports Suspension.

[binsie2003]

blade7 said:

binsie2003 said:

I'm thinking this is quite a special car,

Its a forum about cars where we talk about...... CARS! Unsurprisingly!

[binsie2003]

GC8 said:

binsie2003 said:

Last 5 numbers of VIN read 40185.

Regards

Steve

185th car, less pre-prods, so possibly the 168th production car built.

Im not surprised to see that theyre 1986 model year cars, but it is nice to have the theory confirmed.

The M44/50 is the most interesting part, for me. I have seen your similar thread on TIPEC it would be great if you could post a little about your car either there or on the PCGB 944 forum.

I did try to get some info on it from PCGC via the membership specialist in Porsche Post and forum I think, it never really went anywhere, if you inbox me personally off forum I'll workout some info for you.

[binsie2003]

blade7 said:

Maybe the car has been a 2.5 16v from day one...

Sorry to disappoint but no it has not. Its an 88 registered vehicle and within the history file there are documents from Essex police regarding a court case and the case being that the 3litre was from a stolen car. So some skulduggery was afoot in 1993 when the swap happened!

[binsie2003]

So its your forum and you make the rules eh! I'm sure site admin would be very impressed. You are exactly the type of person we sign up a user agreements for when joining sites like these!

If you must know though I have been a regular contributor to the forum on Clarks Garage for 15 years and was well known there. My username became suspended due to hackers and I've not been able to log on to the site for a while. Clark himself does not seem to be involved any more and admin haven't renewed my forum membership. I've been looking to find another group to bounce off. But the unfriendly welcome from this site makes me think the opposite!

[binsie2003]

Hi, GC8 I tried the info you gave me via pm to no avail, can you check the email addy (are the spaces and capitals correct) and resend as now I cant locate the pm.

Thanks

Steve

[binsie2003]

GC8 I got thru eventually and he confirmed what it was.

It was a 1st production year and my car was the 123rd Turbo in a total production year of 178.

I wonder how may of the original 178 are still running?

Do you think this make my car any more special than other Turbos running around? Is it the M44/50 engine that makes it special or is it the whole package from the short build programme that year?

Is value likely to be an issue could I possibly be under insuring?

Regards

Steve