Front tire wear issues

[Artfrombama]

I've been experiencing excessive front inner tire wear with my 73 911. I don't track the car, just normal driving and occasional "spirited" mountain drives...
At the present time I'm running 1/16" toe in, 0 camber and all the +caster I can get. Front tire wear is unacceptable, rears wear rather well. I accurately do my own alignments with my alignment bubble tool and toe plates.
The car has Pirelli P6000 tires, turbo tie rod kit. The car has not been lowered. 26F 29R PSI

My inclination is to try for 1* +camber but something tells me I'm not seeing the whole picture.
Thoughts? Ideas? Thanks!

[dannobee]

If the tire wear is on the inside of both, toe it IN a bit more. Camber off won't wear out tires anywhere near as the toe being off.

[HarryD]

Tire pressures are too low. 29 F/34 R is factory.

[HarryD]

You have two identical threads going. Delete one please.

My tech spec bbok says:

total toe (pressed with 15 kp) = 0
camber 0 +-10

[Dpmulvan]

Several things can cause your problem we need more information like Control arm bushings and condition, ball joints, suspension set up et. Highly unlikely it’s just tire pressure.

[HarryD]

Originally Posted by Dpmulvan

Several things can cause your problem we need more information like Control arm bushings and condition, ball joints, suspension set up et. Highly unlikely it’s just tire pressure.

Possibly true, but why not start with the simple, easy to do things first.

Other inexpensive things to do are a close inspection to verify the condition of the front-end components (ball joints, wheel bearings, bushes etc). Make sure nothing is bent!

[cabmandone]

I was looking into this issue on my car and came across a few threads that stated negative camber was the problem.
http://forums.pelicanparts.com/porsche-911-technical-forum/676498-inner-tread-wear-front-tires-only.html

Harry is correct. First thing is to verify everything is mechanically sound. That means raising the car and checking wheel bearings, tie rod ends and ball joints. Once that is inspected then you should move onto alignment. Most reputable alignment shops will do the inspection prior to aligning the vehicle but if you're capable, it'll save you a few trips to the alignment shop.

Oddly, my rear tires seem to wear the center prematurely

[dannobee]

Of the tire wearing angles, incorrect toe is BY FAR the one that will shred tires the quickest.

Agree with a thorough front end inspection, although with an early 911, you can feel "something loose" fairly easily when driving because they normally feel very precise when driving.

How about a pic of the two front tires?

[Dpmulvan]

Originally Posted by HarryD

Possibly true, but why not start with the simple, easy to do things first.

Other inexpensive things to do are a close inspection to verify the condition of the front-end components (ball joints, wheel bearings, bushes etc). Make sure nothing is bent!

Why didn’t I think of that?????????????? WTF

[prschmn]

A picture of the wear would be helpful-wear from toe vs camber is easily identified.

[midnight911]

I'd also check toes first.