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**Porschinelle** · 02-08-2014, 08:03 PM

A part that thousand's of nice cars but that is another story
Just for fun a German car broker stand with not less than 6 off Mercedes 300 SL Gullwings for sale

**55Speedster** · 02-09-2014, 10:23 AM

Just in case the museum asks you to move their 550..

And a couple vintage 550 pics for fun

**JTR70** · 02-09-2014, 02:17 PM

Thanks for posting those great pics Chad! Very interesting to read the handling instructions on that Spyder. Thanks again! Justin

**Type550** · 02-09-2014, 07:07 PM

Hi Gerard,

Sorry for the delay getting back to you. Steve has given most of the answers for you. All 550s after (and including 550-05) were supposedly fitted with the new type547 engine. Porsche gave 'type' numbers to each part they made, whether it was an engine, gearbox or a whole car, so based on this ordering system, the Fuhrmann engine was in the process of being designed and built around the same time of the type550.

This photo shows #39 - 550-12 also with a type547 engine

Technical Specifications Model: Porsche 550-1500 RS Spyder Year: 1954-1955 Engine: Air-cooled flat-four engine Valves: Two-valve engine, two overhead camshafts per cylinder bank, vertical shaft drive Displacement: 1,498 ccm Bore x stroke: 85 x 66 mm Max. power: 110 bhp (81 kW) at 6,200 rpm Mixture formation: Two Solex 40 PJJ double-downdraft carburettors

The four cams engine with the 1498cc competed in the 1500cc class. Porsche also entered 550-13 in the 1100cc class with a 1097cc four cam. Porsche usually raced 356s with a normal displacement of 1086cc in their push rod engines.

But in the 1955 LeMans, 550-0016 (#65) raced in the 1100cc class along with 550-0048 (#49). 550-0016 left the factory with a normal four cams 1500cc engine type 547 number P 90001, but Veuillet ordered several kits to race in the 1100cc class. One of these kits were put directly on Josef Jeser car. The only difference was the bore of 73 mm for the 1098 cc engine instead of 85 mm for the 1498 cc engine. The 1098 cc engine was being used as Prototype; it is a 4 cam engine also Type 547 with 93 Ps by 5500 U/min.

hope this helps clarify the different engines

Andrew

**Type550** · 02-09-2014, 07:22 PM

Originally posted by Porschinelle" post=15927

this car belong to the Porsche Stuttgart museum
It is the one who raced le Mans 1954 and then was sold to Jaroslav Juhan
He finished 4th with it at the 1954 Carrera Panamericana and first at the 1955 Buenos Aires 1000 kilometers race

I didn't know 550-12 was also owned by the museum - that makes it 4 originals now. Maybe they are doing a buy back of all the 550s

**Porschinelle** · 02-10-2014, 12:50 AM

Hi Andrew

Thanks for this very complete explanation
So at le Mans 1955 2 off the 6 550 to race had 1.1 liter 4 cams engines
Does these 2 engines still exist ?
What engine has 550 016 to day ? 1.1 or 1.5 ?

**Steve Heinrichs** · 02-10-2014, 12:52 AM

Hi Guys,

If 550-12 is owned by the Museum....that makes two 550 prototypes, I think. The other is 550-04.

What two more are there?

Also, all but 550-01 and 550-2 had factory 547 motors at some point.

Steve Heinrichs

**55Speedster** · 02-10-2014, 01:11 AM

Here is 550-0004 at the PRCC. This is before the drive!

**Type550** · 02-10-2014, 04:41 AM

When 550-0016 was bought by its current owner, it had a push rod engine in it. It now has a 1500 quad cam. 550-0048 was fitted with a 1500 quad cam (P90054) after the LeMans race. I am unaware of where these 2 x 1100 engines are today.

The Factory now has 550-04, 550-12, 550-0064 and Wolfgang Porsche owns 550-0018, which is technically 4...

**Steve Heinrichs** · 02-10-2014, 05:03 AM

Got it. Yes, of course. did not know about 550-12 and I thought the count was just prototypes. I would not consider Dr. Porsche's as a museum car.

Steve Heinrichs

**alan hall** · 02-10-2014, 06:59 AM

Regarding The fate of the 1100 cc engines, I recall a mention in the Feb '57 Sports Cars Illustrated where Ken Miles is quoted: "The engine I was using had started out in life as an 1100cc. It did a season of racing in Europe, including Nurburgring and Le Mans. Then it came over here and ran at Sebring. After that it got a set of 1500 cc barrels and raced a season in the east. Then we got it. We raised the compression, put the valve spring pressure up and substantially overrevved the little engine in three races. It hadn't been apart for three years and we knew it was due to blow any day, but it was running so nice and loose that we didn't want to tamper with it. It had a perfect right to let go when it did."

I have always liked that quote as it puts a perspective on how spyders were treated back in the day.

Alan