wheels tyres 86 911 3.2 carerra

[allanpriormuir]

I have a set of wheels and tyres for above car ...but the ones on the car are 16in 205/55 on frt and 245 /45 on rear .

I intend putting on 255/40/17 on 9j 17 on rear and 205/50/17 on 7/1/2 j 17 on front ....

will this work ..and has anyone done this ..upgraded from 16 to 17 in on this type of car ?

allan

 

[John H]

ORIGINAL: allanpriormuir

will this work ..and has anyone done this ..upgraded from 16 to 17 in on this type of car ?

allan

Dunno ... but I did the reverse on my 964, removed the 17" wheels and went to some pains to source the correct 16" wheels, and it improved the car a lot. Less tramlining, better road handling, etc.

In my (admittedly limited) experience, 911's work best with smaller wheels. Larger wheels may look cool, and may give more grip on billiard smooth tracks, but don't expect it to improve the car on the sort of real world moth-eaten roads we have here.

JH

 

[Mike58]

Anorak reply .....

The sizes you quote will give you differing rolling radii fr/rr
You will acheive fr 23.46" and rr 25.03"
Ok if your car is sitting down a bit a the back but it will produce strange handling characteristics .. as me how I know !!
PM me for a rediculously detailed reply

Mike

 

[Mike58]

Bollocks.. forgot to calculate in the width of the rim stretching the tyre. you're OK within 0.04" !!

It may however be worth contacting me re the shockers and ride height as I've done a lot on 3.2s

Mike ( no expert , just experienced)

 

[allanpriormuir]

thanks guys , looks like I will not use them

regards
allan

 

[Mike58]

Au contraire Allan, they should fit and if you like the style go for it, but you have to checkthe details first.
There is so much advice out there, almost every change to a 911 has been done and forums like these help you avoid making an expensive error
Mike

 

[Bertroex]

Hello Allan,

Just a few pointers here: looking at the tyre sizes and assuming your car is original, then your carrera 3.2 is equipped with, at the back, the rare 9x 16 inch fuchs wheels. This pair alone trades for around £400 -600 without tyres, as most 3.2, 3.0 litre SC etc came with the 6 and 7 x 16 inchs fuchs.

Optionally either a 6 and 8 x 16 or a 7 and 8 x 16 inch version, depending on the year, was available. Any impact bumper Porsche driver would sell something very dear (wife?) for your 9 inch rear wheels.

Now, the fuchs wheel is EXTREMELY light as they are forged instead of cast. With a Porsche it is all about the unsprung weight and very good suspension set up to make it work Few wheels do achieve that fine line except for the Fuch wheel.

The 3.2 is most definetly worse off with:
1) 17 inch wheels as it puts far too much strain on the suspension components
2) the replica mille miglia cup 1 or cup 2 -or god knows what else- weigh about 6 kgs per wheel more than your Fuchs.

If you do sell your wheels, please bear me in mind but if I were you: invest in good tyres and have your car corner weighted and the suspension properly set up (new bushes, bilstein shockers etc as required). When driven as intended, these 3.2 cars can surprise a 996 driver.

This is not alone about originality or taste, this is about engineering. And on a personal note: what more of a classic icon than a Fuchs wheel would you expect on a 3.2????


Best regards,


Bert

 

[lauris]

ORIGINAL: Mike58

Bollocks.. forgot to calculate in the width of the rim stretching the tyre. you're OK within 0.04" !!

It may however be worth contacting me re the shockers and ride height as I've done a lot on 3.2s

Mike ( no expert , just experienced) ????????????????



no expert, just experienced, ??????? does that mean youve done it alot !,,,,, but still no good at it ????????

track sunday mike ?

scottie.

 

[Mike58]

Not as expeiencd as you
still on wife no.1 ha ha
\\\\\mikey
Khill possibly

 

[John H]

I was going to recommend to Allan that he gets his car aligned by that excellent one man outfit in Sighthill, but I've lost the details.

Anyone help?

[]