1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Fitting 4x 98 on a 4x 100 car

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Old Oct 1, 2015 | 03:36 PM
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Rotary12Ahead's Avatar
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Fitting 4x 98 on a 4x 100 car

Will these 4x 98 rims bolt to my fb? and do 13x6s fit? what tire specs looks good on that? I have oem stock 13s and bolts
Attached Thumbnails Fitting 4x 98 on a 4x 100 car-screen-shot-2015-10-01-4.34.38-pm.png  
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Old Oct 1, 2015 | 03:40 PM
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Stock pcd is 4x110, so no they really won't fit. You can easily go up to a 7 inch wide wheel and
it depends on the diameter and where the max wheel width hits on the front springs.
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Old Oct 1, 2015 | 05:23 PM
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http://www.ebay.com/itm/20-BIMECC-PCD-VARIATION-WOBBLE-BOLTS-14X1-5-FIT-5X114-3-WHEELS-ON-5X112-CAR-/252107131202?hash=item3ab2c18942&vxp=mtr
Wobble bolts and they will fit. But then you run into the issue of finding tyres. Which availability of 13" tyres is on the decline. Unless you don't mind cheapo Chinese or Korean tyres.


*check your thread patterns on your wheel studs. I just pulled the first ebay ad for wobble bolts that popped up.


EDIT: what offset are those wheels?
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Old Oct 2, 2015 | 01:07 AM
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Move to my thread plz Okay question 2.0 new rims in question

The pictured rims are 4x98 rims for k sized euro sports coupes. They appear to tona positive offset less than that of stock offsett pushing the rim further in while maintainging a nice. Lip. Please.educate me if im off.

My fb is 4x110

Im.digging these new rims as well as the rotary shaped rims. Are these made if unontamium/scamium ?

Im looking at my stocks and im thinking do I really want another set of 13, hard to find tires for, alloys. . .


Last edited by Rotary12Ahead; Oct 2, 2015 at 01:10 AM. Reason: Wrong thread help mod/admin
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Old Oct 2, 2015 | 08:20 AM
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The only 13" performance rubber you will find is RDOT stuff from Hoosier and Toyo and they are
$150 per tire usually. Plus they aren't too street friendly meaning they shed a lot of rubber and
don't work well in wet or cold temps etc.
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Old Oct 2, 2015 | 09:56 AM
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From: Wheeling WV
there is the option of Federal Formozas directionals that apparently are NICE
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Old Oct 2, 2015 | 11:03 AM
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From: https://www2.mazda.com/en/100th/
Originally Posted by t_g_farrell
The only 13" performance rubber you will find is RDOT stuff from Hoosier and Toyo and they are
$150 per tire usually. Plus they aren't too street friendly meaning they shed a lot of rubber and
don't work well in wet or cold temps etc.
i think you could probably get 10,000 miles out of a toyo, they are actually ok for sticky street tires/track day tires. they should be fine in the rain too, we use them as rain tires. not sure about the cold
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Old Oct 29, 2015 | 12:35 PM
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Thanks for the advice!

Is a five lug conversion from an FC the remedy? I just want some rim choice affordable wheel tire combo but I want to have some worth stancing the car later on. I really do dig those advans and I have had my eyes on these rims for the longest

until I came across this picture of these rims i like








any ideas? does this alfa share my lug pattern
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Old Oct 29, 2015 | 02:12 PM
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A gsl-le suspension swap will give you 4x114 pcd and a lot more choices. Its also fairly easy
compared to an FC swap to go to 5 lug.
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Old Oct 29, 2015 | 03:16 PM
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sweet thanks again!
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