Like the topic says, I am wondering if these tires are original. They are on the 6k mile car I just got, wondering if they were ever changed.

The SP57 is probably the model number.

It might be original to the car.

Check out this thread:

http://forums.pelicanparts.com/porsche-911...sp-57-tire.html

According to that thread, they are original, thanks. I have all 4 of them still (kinda) holding air. A bit of dry rot has set in though no surprise.

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yes they are original!!! We would love to see pics of this car asap. Please save it! If not sell it to us so that we can.

Yup - probable so, but no way to verify. With only 6k miles on the car (if correct) - I doubt that they would've been replace, but SP57's were sold at US tire shops back in the day. However, there's now way to tell unless the OO has the records & can verify it.

Those are the OEM Dunlop SP 57 165HR15 sport performance steel belted radial tires which were OE on the 73-74 (probably 75-76 also) on the 2.0 models (155 pre-73 & 73> 165SR15 was for 1.7/1.8). Michelin, Continental & Semperits were alos OEM tire providers on new 914s (maybe some others too).

MT & R&T did road test articles in early 73 on the then new 2.0 which ran those SP57 tires. Very sticky but only got 15k +/- out of them, so many of us preferred the Semperits for about equal traction but 2-3x the mileage wear.

There's more info at O&H under the Wheels & Tires nailed thread.

That one looks in very good shape, but wouldn't be very safe to drive on.

However, you may be able to sell them as a "show set" or one-zies for "show spares" to the CW crowd.

George, he has pix of it posted on another topic in the Garage forum.

It would be cool if you could repair/restore it, plus prove than ones worse off than mine can be resurrected!

Doc, I would love to save this car. It is over my head though. I would also love to sell it to you to save it, but I don't know how to get it to you. Please be aware that there is little that is left after the scavengers got at it.

I am working on pics, but I am cleaning the "stuff" out of it first.

Send me a PM and we can talk selling if you want. I'll give you all the info I have so far.