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Discussion Starter #1 (Edited)
Hi guys... wonder if any of you can help me find out what offset i need for 13" 8" wheels? The car below is a corsa 7 which was produced with 13" 8" wheels and only very slight wheel arch extensions... it looks to clear the arches fine but am wondering about the back space for clearance for suspension etc?

the red sud is the car am wanting to put the wheels on, its lowered but on very stiff suspension so i hope reducing wheel size from 14" to 13" and going from a tyre ratio of 60 to 45 will give me enough clearance around the arches...

any ideas would be greatly appreciated as i cant find any consistant tech info anywhere, not even compomotive or revolution have any idea :confused:

other than measuring under the arch am stuck :( colin...
 

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Discussion Starter #5 (Edited)
yeah pat theyr the tyres am gonna use, ill get the wheels first off then the trofeo kit when i can afford it... new wheels r £470, tyres r £400 so its a big outlay:rolleyes:

iv looked everywhere for the offset figures and cant find them anywhere!!! iv always scanned the net for anything alfasud, and have spent most of the day today looking again...

The only idea i have has come from a fiat abarth specialist, their standard fitment is virtually the same as the sud at 5.5" 14" et 40... and their 13" 8" wheels have et0 (zero) so possibly the sud 13" 8" may be similar... compomotive only make the wheels between et-5 and et-12 (minus) anyway... and only et-24 in the 9" you bought
 

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Colin,

[lots of links here I'm afraid]

The Trofeo wheels are ET+6, as per below

Some Alfasud Trofeo pics - Alfa Romeo Bulletin Board & Forums

The offset on most wheels is set by machining the hubface to meet the various manufacturer's specifications.

That's why if you look at a partcular type of wheel the low postive offset wheels tend to be a little bit heavier than high positive offset wheels.

http://www.enkei.com/spec_charts/RPF1.pdf

A competent local engineering shop should be able to machine the hubface of a wheel to achieve the desired offset. for example:-

http://cgi.ebay.co.uk/Alloy-Wheel-M...alservices_car_vehicle_GL?hash=item414c3d8b34

Cheers,

Adam
 

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Discussion Starter #7
wow thanks adam!! thats everything i need :) didn't realised you could re-machine wheels to fit any car!! you learn something new every day :cool:

thanks again, col
 

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Discussion Starter #9 (Edited)
hey sudaddict, glad you like me little sud, i rebuilt it 2/3 yrs ago with a bare metal respray and fiber glass panels, (the only rust on the whole of the car were small sections on the rear arches where the small quater trim bits of the sc where located) its done 38,000 miles from new and has been a race car since it was a year old so its never seen the dreaded salt on winter roads here in the UK..

since having it iv added leda coil over front suspension and stiffened rear, new clocks including oil temp... its a 1732 8v 160bhp full race engine by dave young, lsd gear box, omex mapped ignition, full ss race exhaust. its a little screamer and loads of fun, iv never weighed it but i suppose it must be only 700/750 kg so with 160bhp it pulls really well... :)

im liking your sprint to, looks really cool :cool:

col
 

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Hi Colin. Your car must be one of the most powerful 8v Sud I've ever seen! Very very nice mods:cool::cool: Keep it well, it's the kind of car that makes me dream perhaps more than a Ferrari or a Lamborghini:D:D

If you have some more pics, please have them posted. Would love to see some more....
A video would be cool too...:)
 

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Discussion Starter #11 (Edited)
thanks suda, im really happy with it and am thinking of making it into a trofeo replica with 13x8 and a fiber glass replica arches from a company in portugal... its got fiber glass wings, bonnet, front valence, and rear hatch already, they were made and fitted by bob wright of guilia race fame (he lives near me in the north east of england) he also prepped and painted it for me at a very reasonable cost :0)

heres some photos from a while ago, since then iv located the front indicators in the lower front panel where they should be lol

The yellow pic is how i bought it about 4yrs ago

id love to see some of your sprint if youv got any?

col
 

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thanks suda, im really happy with it and am thinking of making it into a trofeo replica with 13x8 and a fiber glass replica arches from a company in portugal... its got fiber glass wings, bonnet, front valence, and rear hatch already, they were made and fitted by bob wright of guilia race fame (he lives near me in the north east of england) he also prepped and painted it for me at a very reasonable cost :0)

heres some photos from a while ago, since then iv located the front indicators in the lower front panel where they should be lol

The yellow pic is how i bought it about 4yrs ago

id love to see some of your sprint if youv got any?

col
Your car is in extremely good condition and that guy did a very good job of the paintwork:cool::cool:
The Trofeo kit would definitely look great on that car! Pat is thinking of fitting the same kit to his race Sud. Maybe you could get it at a better price if you buy it in bulk?

You can view some pics of my Sprint by clicking on the link just above the signature image
 

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Discussion Starter #13
thanks suda, i think your sprint is one of the best iv seen, love those arches and wheels, the colours great to, you can certainly tell its not the norm :thumbs:

col
 

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Hi guys... wonder if any of you can help me find out what offset i need for 13" 8" wheels? The car below is a corsa 7 which was produced with 13" 8" wheels and only very slight wheel arch extensions... it looks to clear the arches fine but am wondering about the back space for clearance for suspension etc?

the red sud is the car am wanting to put the wheels on, its lowered but on very stiff suspension so i hope reducing wheel size from 14" to 13" and going from a tyre ratio of 60 to 45 will give me enough clearance around the arches...

any ideas would be greatly appreciated as i cant find any consistant tech info anywhere, not even compomotive or revolution have any idea :confused:

other than measuring under the arch am stuck :( colin...


View attachment 84446 View attachment 84461


View attachment 84448
If your standard Alfa wheel was

5.5x13 et35 you would need 8x13 et2.5

5.5x13 et38 you would need 8x13 et5.5

This puts the back face of the wheel in the same place as your original wheel all the additional width is out over.

Unless you have a blank wheel ie before the seats have been machined you won't be able to machine the back of a wheel more than 10mm before breaking into the seats.

Machinig the back of the wheel is no good to you as it will only bring the wheel inboard anyway.

What offset are the Minlite style in the pic?
 

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Colin,

[lots of links here I'm afraid]

The Trofeo wheels are ET+6, as per below

Some Alfasud Trofeo pics - Alfa Romeo Bulletin Board & Forums

The offset on most wheels is set by machining the hubface to meet the various manufacturer's specifications.

O/E and Aftermarket wheels are cast with the offset set ie et35 or et45 is not usual to machine a bolt up face once the wheel has been painted and finished.
 

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Discussion Starter #16
thanks spider, the best wheels iv found are the ats classic's, theyr vw 4/100 which i can have machined to 4/98 for £10 per wheel... theyr 13x8 et01... £440

do you know the outer limits of et i could go to? i guess these wheels will move out over by 5mm?

iv spoken to a race set up in portugal who supply the trofeo arches and they recommend the ats wheels as a good strong single cast wheel, im thinking these will be ok?

col
 

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Discussion Starter #17 (Edited)
scrub that spider iv just spoken to compomotive and their cxr motor sport wheels r made to exact spec, and weigh in at circa 5.1kg depending on amount machined off for offset!! These are the lightest iv found by far!!

so for 13x8 4/98 et+6 with 58.6 centre bores and a little haggling they'r £470 including shipping, they'll paint the centres black if required (for the trofeo look) and chuck in the centre caps to... "result me thinks" :thumbs:

great looking wheel and super strong according to them :) just fit them with falken 205/60-13 for £45 each... hopefully they'll give me enough clearance... iv seen these tyres on 8" wheels and there doesnt look to be too much of a stretch... The vw boys use 175/60 on these sized wheels to get the euro stretch look, not sure how safe theyd be tho!!!
 

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scrub that spider iv just spoken to compomotive and their cxr motor sport wheels r made to exact spec, and weigh in at circa 5.1kg depending on amount machined off for offset!! These are the lightest iv found by far!!

so for 13x8 4/98 et+6 with 58.6 centre bores and a little haggling they'r £470 including shipping, they'll paint the centres black if required (for the trofeo look) and chuck in the centre caps to... "result me thinks" :thumbs:

great looking wheel and super strong according to them :) just fit them with falken 205/60-13 for £45 each... hopefully they'll give me enough clearance... iv seen these tyres on 8" wheels and there doesnt look to be too much of a stretch... The vw boys use 175/60 on these sized wheels to get the euro stretch look, not sure how safe theyd be tho!!!

View attachment 84943
Good news they sound (and look) the part. Once you offer them up check you have 12mm of thread going into the hub by putting copper slip on a bolt.
 

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Trofeo wheels

I have now got an email from Reiner Köppen in Germany, who owns a lot of Alfasud (including Gerhard Bergers Trofeo Sud).

He tells that the ET/inset of the original Cup wheels is 0 mm. He uses BBS with the samme ET in the size 8x13". For slicks he also uses 9x13", and they are then combined with a 4" inner-ring and a 5" outer-ring. That gives an ET of -12 mm.

I know that Ali says that the original Speedline 8x13" have ET 6 mm, but with the information here it must be possible to see that the area of ET is between ET 6 and ET -12 mm. They will all fit under the wide Trofeo arches. Remember that the 8x13" carried wide 235 tyres, so there should never be a problem with clearance for the inner side and suspension.

Peter
 
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