needing help with odd sizes 18's with low offset

[Chase_acura]

fronts 18x9 57 offset
rears 18x10 51 offset
supposedly made for an NSX by CCW
any help appreciated

 

[docjohn]

what specific help do you need?

 

[Chase_acura]

what specific help do you need?

will these fit? anyone ever done something like these?

 

[Jinks]

18X9 on a stock fender would only fit if you stretched the hell out of the tire and sizes below 215 are far and few. But I highly doubt a 57 offset would even come close to clearing the oem brakes. That is like having nothing between the hub and the caliper. I would sell them.

 

[docjohn]

I'm not into stretch.....dump daily,flush nightly,limbo bimbo...ect....I doubt those fronts will be usable.

 

[Hapa88]

But I highly doubt a 57 offset would even come close to clearing the oem brakes. That is like having nothing between the hub and the caliper. I would sell them.

A very common misconception that offset affects brake clearance... in which case it doesn't really.
Remember the OEM wheels, which of course clear the brakes, have an offset of +55 front and +60 (or +56) rear.
Brake clearance is more a function of spoke design rather than it is of offset.

That being said, for a stock fendered NSX (or even widebody for that matter), I don't believe either of those wheels to be a good fit for the NSX. They seem to be better suited for a S2000.

 

[jwmelvin]

A very common misconception that offset affects brake clearance... in which case it doesn't really. ... Brake clearance is more a function of spoke design rather than it is of offset.

It no doubt depends on the manufacturer but, for example, Enkei has told me that within a given spoke design, brake clearance is a direct function of offset. In other words, offset is adjusted by machining the hub-contacting surface.

 

[Hapa88]

It no doubt depends on the manufacturer but, for example, Enkei has told me that within a given spoke design, brake clearance is a direct function of offset. In other words, offset is adjusted by machining the hub-contacting surface.

That is true. If you keep the spoke shape and design constant, then yes the only real way to adjust the offset is to remove or add pad material by hub.
Companies like Work, Rays and SSR have multiple spoke shapes within a given wheel design (usually in the form of different levels of concavity). This allows for various levels of caliper clearance and offset values.

With regards to my comment though, it is an extremely common misconception on here and other forums that there some sort of magic "offset" that will clear a certain brake calipers. Usually it comes in the form of "Hey Prime, what size wheels and offset do I need to clear my Stoptech calipers?".
The short answer is: There is no "magic" offset. You first must determine which wheel you want then you can determine the concavity (aka disk type) to fit that caliper. You then select the offset such that it falls within the position you want the wheel to sit relative to the outside fender and inside wheel well.

 

[Jinks]

Here is a good read.
http://www.tirerack.com/wheels/tech/techpage.jsp?techid=101

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It looks as though offset is directly used to determine the wheels clearance in relation to the suspension and not the brakes as I originally thought.