Super 14inch tires - Alfa Romeo Bulletin Board & Forums
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post #1 of 16 (permalink) Old 07-10-2017, 11:06 AM Thread Starter
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Super 14inch tires

Tires....

Tires that don't rub... I had a set of original 15" steel wheels for the 67 super, but they needed tubes, running tubeless wouldn't work, After hard driving the tubes would tear, I tried several brands of tubes, they all tore. So after coming out to flats.. I just decided to put tubeless rims on. 15"x 6 GTA rims, they worked but.. the 6" is wider than the original and were sitting low and rubbing the inside of the wheel well, we took a bat and rolled it on the inside, we got a lot of room, but it was still very tight, we swapped out the rear springs, rides a little higher, stiffer, but at least I can put things in the trunk, and a full tank of gas... Running Toyo Poxies, 185 55 15's

Now, while putting the GTA rims on I had a chance to grab a set of these BWA's... yes, they'd look great on a Super but they're 14 inch.

So before running off and powder coating them and making them all pretty I thought to check tire sizes.... 185 or 175, 60 or 65's, or even 70's / 14.

I want to keep the ride high enough so they don't rub... But try and find a decent tire in 14's.

PROXES R888R, at 185 / 60 / 14's... at $150 bucks a pop, ouch!! Sumitomo HTR's, tried them with the steel rims, they were so soft, rolled over on the side walls, Falken makes great Azenis but in 195's.... Vredersteins? I think they're going to be soft too.

So asking all you guys, what gives, is there any tire out there?? Thanks!!!
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post #2 of 16 (permalink) Old 07-10-2017, 12:13 PM
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Alfa's stock tire height was 24.4-24.7in plus/minus. I don't like to go over or under this. The stock width that our collective wisdom say's are probably the safest bet is 155x15 (oem), 165x14 (oem) and 175x70x15. 185x65x15's will generally work well but rub on some cars so I'm classifying these as an outlier. I have them on my Super and with 2 people in the car (w/ the "Granny" overload spring I used to have removed), I get some minor rubbing under cornering loads.

Regardless of whether 14 or 15in, wheel offsets are critical . Turbinas, which look very good on Supers, are 38mm offsets. The 15x6 GTA replicas (which I have) are 28.5mm offset. They're probably work better with a 175x70x15 than the 185x65x15's I have which rub occasionally. The TZ Replicas are 36mm offset. Some people gain additional offset mm's by machining the hubs.

Axle location is also something to consider. Some cars have pronounced rubbing, some (mine) occasional rubbing which isn't a big problem, and others which have no rubbing at all. If your Super has any mileage on it, a source of rubbing may be coming from worn rear suspension bushings allowing lateral movement of the rear axle. The first thing I'd check are the T-bar end thrust washers, followed by the trailing arm bushes and then the conical T-bar bushes.

Jim . . . '72 Super 1300, '70, 1750GTV, 2nd series,
'62, Lancia Flaminia Zagato3c, 2nd series

Last edited by 180OUT; 07-10-2017 at 12:34 PM.
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post #3 of 16 (permalink) Old 07-10-2017, 12:24 PM
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I have 5.5 x 15" TZ / Ti Super alloys (36mm offset), fitted with 185 x 65 x 15 Avon ZT5's on my Ti Super Rep. I am way away from rubbing, loads of clearance, and I've also fitted new T bar end thrust washers. The end bushes of the T bar are good, and I have a new conical diff-top bush too, so mt axle doesn't move. My car is low at the back and no issues.

Regarding tyres, I don't know if these are available in the States, but we have a good choice for 14 "road tyres in the UK.
On my GTA Rp, I had 7 x 14 GTA alloys, fitted with 185 x 70 Continentals.

Steve

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1963 Giulia Ti Super Rep, 1975 Alfa S2 Spider 2000 Veloce in Giallo Pagoda
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post #4 of 16 (permalink) Old 07-10-2017, 12:31 PM Thread Starter
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Thanks for getting back! I know the original 155's are factory, they just look so wimpy! All my bushings have been replaced, t bar trunion, trailing arms , and t bar support, with koni shocks... its the inner fender wells on the outside, just the rears that rub. The real problem, which we all seem to encounter is finding a performance tire in a 14 inch... Avon makes a classic tire.... at 275 bucks a pop...
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post #5 of 16 (permalink) Old 07-10-2017, 12:37 PM
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Quote:
Avon makes a classic tire.... at 275 bucks a pop...[
/QUOTE]

Well, for most of us, they would be a one-time purchase . . .

Jim . . . '72 Super 1300, '70, 1750GTV, 2nd series,
'62, Lancia Flaminia Zagato3c, 2nd series
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post #6 of 16 (permalink) Old 07-10-2017, 02:59 PM
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What a timely thread. I hope my asking questions here isn't seen as hijacking. I've been asking the same question of late - which wheel/tire combo.

I have a set of beater cromodora turbinas with 175/14" Vred Sprint+'s on them. These are going to be my near-term solution. In the slightly longer-term, I have a really nice set of NOS Campagnolo Turbinas. Since Sprint+'s are NLA I've been looking at what seems to be their successor:

https://www.tiresbyweb.com/p-12283-v...c-5-tires.aspx

The 175's seem to fit fine without any rubbing. I'm wondering if anyone has any comment as to what size I should get. There's 165/60/14's, 175/60 or 175/65. I'm a little nervous that they 175/70's would make contact.

Everything is new in the rear-end. Just added poly trunion washers, even...

It would be great to get some help with this. Anyone have Sportracs? What size/wheel combo do you have?

Thanks!
Brian

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'67 Giulia '1750' Super - rally car
'87 Milano Gold - troop carrier
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post #7 of 16 (permalink) Old 07-11-2017, 12:08 PM
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Not a Super but a '69 spider. I put 185/70-14 Pirelli CN 36's on it recently as they are now available. Transformed the car from the all-season minivan tires it had. Got them from Lucas tires which, if I remember is in Signal Hill. You save on shipping. I believe they were $150. Well worth it for the tire that belongs on these old things.
Dave

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post #8 of 16 (permalink) Old 07-11-2017, 12:33 PM Thread Starter
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It looks like our choices are limited for 14 inch tires. I didn't have a problem with tire width until I went from the factory 5.5 inch rim to the 6 inch GTA style rim, yes, it could be off set too. By opening up the insides of the fender well we gained a lot of room, and by putting on a slightly taller rear spring.

Here are a few 14inch choices I've uncovered, I guess it also matters as to what type of driving you'll be doing, hard and aggressive or just toddling around, we have Alfa's though, so I tend to push whenever I can. My 185 / 55/ 15's fit now, but looking to make the 14's work, which will drop the car lower... thinking if I go to a 185 / 65 should make up for the inch. hoping.

185/70VR14 Pirelli Cinturato CN36

https://www.tiresbyweb.com/p-12283-v...c-5-tires.aspx

Vulcan tire has, Doral, OHTSU, Sumitomo:185 / 65/ 14 Vulcan Tire Sales - Tire Search

Yokohama 185 / 55 / 14 https://simpletire.com/yokohama-p185...LmgaAuEc8P8HAQ

Tire rack / Dunlap Direzza: https://www.tirerack.com/tires/tires...170711054602:s

Avon Classic tires:CR6ZZ | Avon Motorsport

Toyo Proxes R888R DOT Competition tires: https://www.toyotires.com/tire/patte...petition-tires
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post #9 of 16 (permalink) Old 07-15-2017, 01:45 PM
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What is the offset of the 14" BWA wheels? That would be important to know before choosing a tire size/tire model.

Current: '76 Spider, '78 Spider Past: '76 Alfetta GT ITB car, '76 Spider, '87 Milano Gold, '78 Sports Sedan, '78 Alfetta GT, '74 Spider, 88 Milano Platinum
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post #10 of 16 (permalink) Old 07-25-2017, 08:11 AM Thread Starter
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Went with the Yokohama's, appx $80 each, and they fit, the offset of the rim is the same as the GTA rims.... we tested a few different tire sizes on the rims before they went to the powdercoater, just to be sure.
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post #11 of 16 (permalink) Old 07-25-2017, 12:00 PM
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I've had any number of 185/70-14s on Supers, front and rear, no issues. I had 195/60-14 on Bosch Spider wheels on my race car, quite low, no issues other than minor rubbing on racing-speed cornering, would not happen (at least to me) on the street. I have run BWA 6 x 14 on Berlinas, not on Supers, fit fine up to 195; 205 rubbed. Sometimes inside, sometimes outside. Also depends on how firm your trunnion bushings are, and condition of plastic washers in there, to keep the side play down.
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post #12 of 16 (permalink) Old 07-26-2017, 05:48 PM Thread Starter
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Thanks Andrew, just waiting on the powdercoater now... any day now, got all 4 tires in the trunk.... just waiting... very very patiently.
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post #13 of 16 (permalink) Old 07-27-2017, 06:09 AM
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Don't ignore wheel offset. I have a set of 6x14 Minilites on my TI with 195/65R14 Falken ZIEX tires. Two of the wheels have 25mm offset while the other two have a 30mm offset. With the 30mm versions at the rear and passengers in the back seat I get rubbing on the outside of the fender. No problem with the 25mm versions at the rear.

Jim
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post #14 of 16 (permalink) Old 07-27-2017, 06:34 AM
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Quote:
Originally Posted by red10118 View Post
Don't ignore wheel offset. I have a set of 6x14 Minilites on my TI with 195/65R14 Falken ZIEX tires. Two of the wheels have 25mm offset while the other two have a 30mm offset. With the 30mm versions at the rear and passengers in the back seat I get rubbing on the outside of the fender. No problem with the 25mm versions at the rear.
wouldn't that be the other way around?

Peter

Currently: '65 Giulia TI

Previously:
'76 Alfasud Ti/'75 GT Junior/'87 Alfa 33
'91 Alfa 75/'95 Alfa 164/'79 Alfa Spider '69 Euro 1750 GTV, '67 Duetto, '84 Spider Veloce
'91 164L
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post #15 of 16 (permalink) Old 07-27-2017, 07:05 AM Thread Starter
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With the Giulia Super, the rear fender wells are the only problem, theres an inner fender well, the inner fender well produces a lip where its been welded together with the quarter panel on the inside, a really sharp lip, we ground that off first, then, next, this was the perfect trick, we took a piece of pipe, a baseball bat works best, place the rounded end of the bat above the tire and wedged it between the tire and inner fender well, rolled the car forward and back, BE CAREFUL!! you can cause the outer fender to flex and bend, don't ask me how I know... we rolled it forward and back, it worked wonders. Produced plenty of clearance. No more rubbing! We even put slightly taller rear springs on too.
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