Hi all, I just recently bought a 2009 G37 Sedan (Journey) and would like to lower it and change the 17" wheels out to something bigger.

I have a spare set of rims from my other car (1996 Porsche 911/993) that are 18" staggered with tires already installed. I'm wondering if it would be possible to use these wheels on the G37?



Obviously I would change out the Porsche center-caps if I were to put these on the G37.

I believe the bolt pattern on the Porsche 911 is 5x130 (Infiniti is 5x114.3?). Is this workable with some sort of spacer or adapters? Or should I just scrap the idea and buy a new set of wheels specifically for the G37?

Thanks.

 

Go to your local custom wheel shop, they can make the adapters for you within a day. All you need is just a conversion from 5x130 to 5x114.3. Also, it really depends how wide the porsche wheels are already and with an addition with the adapter could make it too wide for the Sedan. If you got the money and time to mess around with it, then do it, otherwise just sell the wheels to get aftermarket wheels with the right offset and size.

 

Thanks NismoAnt.

It sounds like it'll be easier to just get new wheels specifically for the G37.

 

IMO just get new rims, cause if you mess around and spend money and time into putting these one and it doesn't work out pretty much a waste. So just get rid of these and get new.

 

Just sell the 18's add some more $$ and pick up some nice set of forged 19's.
IMO 18's are too small for the sedans anyway. GL!

 

Yea but it wouldn't be more cost efficient. You can find a set of adapters on ebay easily. 114.3 to 130mm adapters are usually 25mm. Porsche usually have really high offsets so just figure out the Porsche rims specs and subtract 25mm from the offset and you should find out what the spec would be like on your car.

Cheers
Josh

 

When it comes to cost effective one has to consider the end result which is a set of wheels with a set of adapters that may cause an improper offset, etc., etc. the other issue may well be that the wheel bore is incorrect to start with and that has to be dealt with as well.

They are very nice looking wheels, I would see if I could find a set that fits the application for performance, looks, and most of all safety.

 

For one, unless the wheel is sticking out, its hitting the brakes, or its hitting the suspension it won't be an "improper" offset. As i said before if you figure out what the offset on the Porsche wheels are and subtract the width of the spacer adapter, you will find out the new offset.

Second, I'm pretty sure that when you order the adapter spacers, they will ask you what the bore size of the hub is and then what size the bore is on the new rim. If they aren't already application specific.

 

If it create an adverse handling characteristic due to offset then it would be an improper offset. One could put enough spacers to place the wheel outside the wheel well and rub nothing, but that would not be a proper offset for handling purposes. Since we don't have inboard brakes that would be one item that will be affected by different offsets.

As far as the bore moving the wheel outward move a proportion of the stess point from the hub to the lugs.

 

After some thought and looking at pics of G37 Sedans, I don't think my Porsche wheels will look good on the G37 Sedan anyways. The whole spacer/adapter thing also sounds a little dodgy to me and I'd rather not have any suspension or handling problems.

Either way, I think I'm going to go with Eibach springs to lower the car a bit and then add the OEM 20" wheel,



My car is red, but I'm hoping it'll look as good as the white car above once modified.

I'm going to sell the Porsche BBS style wheels, I'm not a fan of them on the Porsche at all.

 

Probably the best course of action. I believe in the right wheel for the application, there are many that look good, just don't go too cheap picking up something that looks good without the performance to match.

 

FYI those wheels are 19" off of the G37S coupes.

 

LoL that's my car before i got my rims painted black and my brakes ip... do u have any other pics?