alloys wheels Campagnolo 13" or 14" in 5,5"

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Michel Manette

alloys wheels Campagnolo 13" or 14" in 5,5"

Unread post by Michel Manette »

Hello,


I'm searching since a few days a picture of the design of campagnolo wheels. These wheels equiped some 1.6HF to receive homologation in rallyes !

Could everyone help me and send to me a or severall photo's ?

Thank you for your help and lancisties salutations.


Michel. (Fulvia coupé 1.3s serie 2 1972 marrone)
giancarlo

Re: alloys wheels Campagnolo 13" or 14" in 5,5"

Unread post by giancarlo »

I 've sent you an e-mail with images to your personal address.
Ciao
Giancarlo
Sam Danenberger

Re: alloys wheels Campagnolo 13" or 14" in 5,5"

Unread post by Sam Danenberger »

Giancarlo,
Could you email me those images as well?
Also, what about the problem of Campagnolo 13 x 5.5 wheels rubbing on the brake calipers?
I have been told that you must shave/machine the calipers to clear the smaller wheel.
How do these smaller/wider wheels effect handling?
Is there a proper way to refinish these wheels without damaging them?
I have a set, and would like to mount them to my Coupe. Grazie!

Sam
giancarlo

Re: alloys wheels Campagnolo 13" or 14" in 5,5"

Unread post by giancarlo »

Sam,
I'll send the images to your personal e-mail.
About your questions, I can answer from what I know from literature but honestly I haven't personal experience on that.
The original Dunlop calipers mounted on 1st series Fulvias had a problem of mechanical interference when the 13" wheels started to be employed as original equipment on the 1.6 HF 1st series. The interference was almost negligible for front wheels while it was noticeable on the rear due to the presence of the hand brake calipers. The solution adopted by Lancia was to refinish/shave the Dunlop calipers in order to allow clearance for an inner rim diameter equal to the 95.5% of the previous one (14" rims) and apparently this slight shaving was done using only hand tools.
No intervention then on the wheels.
The advantage of mounting the 5.5" 13"magnesium wheels in place of the original steel 4.5" 14" is to allow for larger tires, to increase the ratio suspended-mass/non suspended mass (improved damping of road bumps), to decrease the wheel inertia (better acceleration and breaking) and have a nicer look for your car. However, by using larger wheels you would need larger wheel arches,to avoid the wheel protruding outside the car shape (in Italy it is forbidden). This would limit the transformation to 1.3 HF types and competition coupès equipped with wheel arches extensions.
Anyway, if you got Fulvia's Campagnolo magnesium 13" wheels you are a lucky guy, they are very rare nowadays.
Ciao
Giancarlo
Huib Geurink

Re: alloys wheels Campagnolo 13" or 14" in 5,5"

Unread post by Huib Geurink »

I have an S1 coupe rallye 1.3 with the 13" Cromodora's (with 165x13 Michelins) and one with the original steel wheels (with 145x14 Michelins). Two different cars. I would say that the handling of the one with the standard steel wheels is just a bit more refined. It certainly has better grip on wet or icy surfaces and snow.

Note that the 13" wheels also increase trackwidth. Forces on wheel bearings and on suspension and steering ball joints will multiply. Not much of a problem 30 years ago, but today it is not often easy to find good quality replacement parts at low cost.

At the front there is nothing you have to do except check very carefully that the rim is not grinding through the interconnect brake lines. It may also be necessary to grind off the back of the bracket holding the pads in place.
For the rear, check the same but also grind off the tips from the hand brake pinchers.

Make sure also that the springs are in good condition. If not, the rear wheel arches will touch the tires on every bump. I even have reinforced springs on the car with the 13" wheels. Springs are also about 1 cm higher than the standard springs.

In additon you have to insert a 6 cm piece of steel or aluminium between the rubber buffer above the rear axle and its mounting seat at the bottom of the car. Or alternatively bolt a 6 cm thick POM (very hard plastic) block on top of the rear axle below the rubber bumper. The rubber bumper is the fail save device to prevent the wheelarches from hitting the tires on bumps or when a spring breaks. Springs do break. Don't neglect this modification.
You still have to make sure the springs have the required minimum strength or your rear axle will continuously hit the rubber buffer. This is not only bad for comfort and handling it also applies the wrong forces in the wrong places resulting in a.o. bent Panhard rods, high failure rates of wheelbearings, shock absorbers etc.
Manuel

Re: alloys wheels Campagnolo 13" or 14" in 5,5"

Unread post by Manuel »

Hi Giancarlo,
Can you please send photos at the above e-mail address?
Regards,
Manuel.
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