Tire sizes used with original 7R Fuchs?

[jameshtaylor]

Anyone know what tire size was used by the factory for competition with the original 7R Fuchs?

[sithot]

5.50 X M15 is what the Sports Purpose Manual called for on either 6 or 7 inch rear wheels.

Tom

[andyjboy]

The 911R Driver's Manual also mentions Dunlop 185 x 15 tyres fitted to both 6 & 7R wheels.

[denson]

The 185 70 is what I use on the 7R rims and it looks very nice.

[blue72s]

The 911R Driver's Manual also mentions Dunlop 185 x 15 tyres fitted to both 6 & 7R wheels.

I know this is a very old thread but your quote is very interesting.

185 x 15 without the "70" ? If so, that's a very tall tyre (same rolling diameter as 205/70x15)

Can you post an image of the page from the 911R Driver's manual please?

[HarryD]

This book shows the following data:

[91167coupe]

I also use 185/70x15 on 7R and it is perfect on a SWB.
I have seen that 185/70x15 is called 185x15 in some manuals. Remember that this was early in the "low profile" life. I don't think they ever used 185x15 on these cars.

[andyjboy]

.

This is the relevant page from the 911R manual:




- remember, 'low profile' tyres (ie 70) didn't arrive until 1968.


However, I doubt that many - if any - of the 911R's used road tyres ...

.

[sithot]

185/70 is a tall tire, IMHO. When I had 7R wheels on the '67 I used 205/60x15. Fit fine, looked good. Utilized a 195/65/15 up front.
Harvey Weidman approved. Car wasn't "slammed". None of mine are because it requires more than just turning a screw or indexing a torsion bar.

As the '67 white car is a slug in comparison to anything modern it's been returned to bone stock as it left the factory. The R wheels are on the shelf as are the deep 6's. Now it looks as slow as it is. Nobody bothers it; just thumbs up from other drivers.
A set of Avon's would help handling a lot but there really is no point in beating a car that's lived a "charmed life". After 19 years with lots of opportunities to screw things up it's now become a hands off car.

Good luck in your endeavors.

[911MRP]

…but there really is no point in beating a car that's lived a "charmed life". After 19 years with lots of opportunities to screw things up it's now become a hands off car.

With the fashion for outlaws, hot rods, homages, restomods and whatever other fashionable phrases … one of the most thought provoking little asides that I’ve read on this forum in a long while, particularly given the fewer and fewer unmolested 911 examples extant.

Steve