1980 SC R.o.W. vin help

[Bjornb]

I just found out today that my 1980 911SC is a R.o.W.
Is there any way to tell where it was originally from by the vin number? I've looked for option codes and cant find any on my car.
My vin is 91A0132987
Thanks.

[Oh Haha]

If it is a true ROW car it will start with WPOZZZ then the numbers. I think the only way to find out it's origin is to contact Porsche and get a Certificate Of Authenticity.
Do a search here and find out how to contact them. I think it's kind of a pain in the a$$.

[Bjornb]

I didn't see anything in front of my vin just ***
does this mean its not a ROW?

[Oh Haha]

OOOPS!!!!!!
Sorry, the WPOZZ designation started in 1981. I missed that your's is a 1980.
I just checked my library and yes, it is a ROW 911.
91-all 911
A-1980
O-Plant
1--Model 911
3-ROW engine
2987-sequential build number
Sorry about that mistake.

[javadog]

Chances are, you can't tell much from the VIN number. The engine type number will tell you if it was originally for Japan but other than that, the engines were all the same type. Look at all the labels on the car and see if some mention is made of something that indicates compliance with a certain set of regulations. Sometimes you can learn of differences from one market to the next by studying the parts CD but that is a bunch of work.

I'd look in the manuals for any mention of where it was originally serviced - if the manuals are complete, that info should be in them. On one of my cars, I tracked down the original owner, home town in Switzerland and the dealer that sold and serviced the car, from that sort of poking around. I've also learned things from a thorough search of the car, finding a map, or coins, or business card or the like.

Have fun,
JR

[rattlsnak]

if it has the original rear bumpers the rear bumperettes are two feet apart as compared to the us models which are 12-13 inches apart.

this is a euro bumper..

[Bjornb]

I just checked and I have the euro rear bumper
does this meen I have euro pistons and cam timing?

[javadog]

If you have an engine type number of 930/09, then you have "euro" pistons and cam timing. This number is on the right side of the fan housing.

JR

[Bjornb]

I have 6302777* stamped on the right side of my fan housing.
What does this mean?
Also my car was purchased from a wrecking yard after it had an engine fire so I don't have any documentation for the car to possibly track where it came from.

[Bjornb]

I just found my engine type code and it is 930/09

[Bjornb]

I am sad to say I just found out I have a us fuel distributor
What other differences are there from euro to us that I should check for?

[javadog]

The engine number of 6302777 means you have a 1980 ROW 911SC engine, made about halfway through the production that year. This matches the type number on the engine, which means it started out as a ROW engine.

What makes you think that you have a US fuel distributor?

JR

[Bjornb]

The part number on my distributor is 0 438 100 077
I was told this is a US distributor and that a Euro would have one of the following numbers 0 438 100 031, 0 986 438 031, 0 438 100 097, 0 986 438 097
if this is incorrect please correct me.
is there any other parts that are different on a us than a euro?

[javadog]

Those are the Bosch part numbers and I'd have to do a little digging to figure out what the Porsche part number are. If I get time, I'll do it.

There are lot's of differences between a US and ROW engine in 1980. I'll post the differences later.

Back in the AM,

JR

[Jadams1]

here's a few tidbits

930/09
188 hp@5500 rpms
8.6:1 compression ratio
brass tube oil cooler

[Bjornb]

Thats a little disappointing but thanks for all the help so far
I will look forward to seeing the rest.

[javadog]

Okay, there are many differences between a US and ROW engine from 1980. I'll cover the biggest ones. The pistons are different. The compression ratio on yours is 8.6:1, which is .1 higher than the US engines, or pre-80 ROW engines. The cylinder heads on the US engine are different for 1980, as are the intake runners for the CIS injection. The intake runners are a little larger on the ROW engines, as they continued to use the parts that were on all SC engines in 78/79. As you noted, the fuel distributors were different. The ROW engines were set to run a richer fuel mixture. The US cars were fitted with an O2 sensor and the ability to change the fuel mixture to suit the needs of the catalytic converter that was installed. The ROW engines were fitted with pre-mufflers instead of catalytic converters. The engine fans ran at a different speed and flowed more air on the ROW version. The ROW distributor had more advance at higher rpms.

The end result was that, in 1980, the ROW engine was rated with 8 more HP and about 8% more peak torque. It was also listed by Porsche as 10 kilos lighter.

Maybe after the engine fire, they replaced some of the fuel system components with parts off of a US car, which would be easier to get here. Go back and ask them. Somebody, somewhere might remember what was done to the car after the fire.

JR

[Bjornb]

I did the repairs myself so the fuel distributor was on before the fire. Which us cars had the same ignition distributor as the euros? how many lbs is 10 kilos?
Thanks for that info javadog

[javadog]

The US distirbutors were different that the Euro distributors. The advance curves were slightly different. 10 Kilos is 22 pounds.

JR

[Bjornb]

Does anybody know the part number for a euro distributor or where I could find it.
Thanks again