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4x4.5 lug pattern question


Guest Z-rific

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Originally posted by Z-rific:

I've spent several hours combing through archives here and at zcar.com. Apparently we all have trouble with aftermarket wheels.

 

I notice a lot of wheels now on eBay with the 4x100 and 4x4.5 option. Since the Z, has this bolt pattern, they should bolt right up, no?

 

I know the backspacing will need to be measured. But since I have some fairly radical flares, I always have room to go out. So a bigger offset or spacers is acceptable to me.

 

So what's the deal with these rims. Is the backspacing just way too far off for us?

 

I'm real close to ordering Ross' spacers. But if I can pick up a set of new rims off eBay for $400, I'd save myself some $$$.

 

I think I would be happy with 16x7, 16x8, 17x7 or 17x8's with maybe 225's in front and 245's in rear.

 

Please end my archive search headache and help me out!!!

The biggest reason we have a hard time finding wheels is backspacing. Most wheels have much more backspacing than will bolt onto a Z. The bolt pattern is fairly common. It is 4x4.5 or 4x114.3, depending on whether measuring metric or standard.

 

If you don't mind using spacers, then you've got a very large selection out there. Most people seem to be afraid of the idea of putting a set of spacers in there and that severely limits what's available to them. I have not actually run spacers myself, but plan to as soon as I find a new set of wheels I like.

 

As for types of spacers, there are for the most part two types. The first is the slip-on spacers. These require longer wheel studs to be pressed in and then they just slip on between the wheel and hub to make up the difference in backspacing. Your bolt pattern stays the same, only backspacing changes. The other type of spacer is the bolt-on. It goes onto your original lugs with a set of lug nuts and then provides a new set of lugs to bolt your wheels to. You can either keep the same bolt pattern or change it up a bit. I believe Ross's spacers change the bolt pattern to 4x100 (don't quote me on that!)which will handle most honda wheels.

 

Gene

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Guest Z-rific

I've been to his website many times. Very nice ride.

 

I don't have coil-overs, and he said his would not fit otherwise. So it looks like it's spacers for me.

 

Now for the math (and my headache gets bigger weird.gif .

 

The Z rims have what backspacing? My 78 has a 5 inch rim (I believe). And there is little room between the tire and spring. So if I go to a 7 inch rim, I have to either have the same backspacing with a 2" spacer, or a 50mm offset.

 

The tires on now are 195's. 2 inches more tire equals 245's. (I do have 2" to go out to the flares).

 

So, theoretically, I could get 16x7's with 245's all around with the same offset as the original rim and a 2" spacer?

 

OR

 

Get 16x7's with a 50mm offset different from the Z rim (which is what, positive or negative)?

 

Discount tire has some great prices on wheels and it seems somebody is always having a closeout on tires. I'm trying to stay in the $1000 range for the whole setup. And my car gets out of the shop in about 2 weeks. And I'm so sick of doing internet searches I could puke puke.gif .

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Guest Z-rific

I've spent several hours combing through archives here and at zcar.com. Apparently we all have trouble with aftermarket wheels.

 

I notice a lot of wheels now on eBay with the 4x100 and 4x4.5 option. Since the Z, has this bolt pattern, they should bolt right up, no?

 

I know the backspacing will need to be measured. But since I have some fairly radical flares, I always have room to go out. So a bigger offset or spacers is acceptable to me.

 

So what's the deal with these rims. Is the backspacing just way too far off for us?

 

I'm real close to ordering Ross' spacers. But if I can pick up a set of new rims off eBay for $400, I'd save myself some $$$.

 

I think I would be happy with 16x7, 16x8, 17x7 or 17x8's with maybe 225's in front and 245's in rear.

 

Please end my archive search headache and help me out!!!

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