Hi all.

 

I am looking to change the wheels on my '94 Jap import.

 

I believe fittings may be different for Jap import.

 

Please could I ask for advice on sizes, fittings I need in order to get some.

 

Would love to fit some 18" dished 5 spoke I've seen on line.

 

Ad says they fit 300zx but not sure if that includes Import models.

 

Thanks in advance.

Wheel specs and fitment are the same on either market cars. You can go slightly wider on smaller diameter wheels for the rear on NAs as they don't have the HICAS knuckle, but essentially, they're the same.

 

You need an idea of how wide you want to go and then look for suitable offsets. Typically, if you're wanting to change your wheels with no body modification, then an 8.5" front with an offset close to +20 and a rear with a width of 9.5" with an offset close to +35 will give you a fairly flush fitment without being overly aggressive. You can fit standard sized tyres then rather than stretched. Diameter can be of your choice, just maintain the aspect ratio. 18s are the most common diameter.

 

Also check your PCD and centre bore for the wheels you're looking at, they'll need to be 5x114.3 and 66.1mm respectively although for the latter, you'll likely have to get corresponding spigot rings, so make sure the centre bore is the same or larger.

Thanks for the information.

 

Ill contact the company and check those sizes.

 

When you say standard tire sizes, what would those be wrt width and depth and would they be different for front and rear? Currently on OEM wheels they are the same front and rear.

Standard sized tyres are essentially tyres designed to fit that wheel width. For example, people with extremely aggressive offset and camber (think fat girl in Uggs) will fit a really skinny tyre not designed for that wheel width. This puts undue loading on the tyres walls and a reduced contact patch, not to mention it looks ridiculous. For example, putting a 225 35 18 tyre on a 9.5" wide wheel. For the specs above to give you a nice flat tyre wall (based on an 18" diameter) would be 245 40 18 front and 275 35 18 rear. That aspect ratio would keep your rolling radius within spec (meaning your speedo should still read accurately).

Absolutely superb advice again.

 

Thank you so much.

Standard sized tyres are essentially tyres designed to fit that wheel width. For example, people with extremely aggressive offset and camber (think fat girl in Uggs) will fit a really skinny tyre not designed for that wheel width. This puts undue loading on the tyres walls and a reduced contact patch, not to mention it looks ridiculous. For example, putting a 225 35 18 tyre on a 9.5" wide wheel. For the specs above to give you a nice flat tyre wall (based on an 18" diameter) would be 245 40 18 front and 275 35 18 rear. That aspect ratio would keep your rolling radius within spec (meaning your speedo should still read accurately).

 

PMSL...….:lol:

 

But sound advice as ever Si...:wink:

HI Guys,

 

sorry to bring this one up again.

 

The wheels I would like to fit are 18" diameter. 8.5JX18 5X114.3 ET32 front and 9.5JX18 5X114.3 ET35 rear.

 

The sellers said they should fit but I may need a spacer (10mm) and bolt extentions.

 

Is this Ok or do I find wheels with the required +20 offset? Or will the +32 front offset fit anyway.

 

Again sorry as I know very little about wheels and fitments.

 

Thanks

 

George

HI Guys,

 

sorry to bring this one up again.

 

The wheels I would like to fit are 18" diameter. 8.5JX18 5X114.3 ET32 front and 9.5JX18 5X114.3 ET35 rear.

 

The sellers said they should fit but I may need a spacer (10mm) and bolt extentions.

 

Is this Ok or do I find wheels with the required +20 offset? Or will the +32 front offset fit anyway.

 

Again sorry as I know very little about wheels and fitments.

 

Thanks

 

George

 

It would really depend on the style of the wheel you’re looking at fitting and what brake calipers you have. The et35 rears will fit just fine and I would suggest that most et32 wheels up front will also fit with stock brakes, however it will always depend on the wheel style.

 

Aesthetically, I think it’ll look better with a 10-15mm hubcentric spacer up front anyway so it wouldn’t necessarily be a bad thing. With 15mm bolt on spacers, you shouldn’t need to replace the studs but the 10mm hubcentric kit from H&R comes with the required studs (which are not difficult to replace).

HI Guys,

 

sorry to bring this one up again.

 

The wheels I would like to fit are 18" diameter. 8.5JX18 5X114.3 ET32 front and 9.5JX18 5X114.3 ET35 rear.

 

The sellers said they should fit but I may need a spacer (10mm) and bolt extentions.

 

Is this Ok or do I find wheels with the required +20 offset? Or will the +32 front offset fit anyway.

 

Again sorry as I know very little about wheels and fitments.

 

Thanks

 

George

 

George,

 

I have a set of 18s that I know fit a 300zx. In my opinion, when refurbed, they look very good on a 300zx. They do need a full refurb and new set of bolts. You’re welcome to come over and fit them before making your mind up.

 

Kosei-Seneka RG wheels