I'm lowering my 2013 G37X Sedan with Tanabe NF210. What is best size wheel spacers I should use for front and rear? Please have a link to the product. Thank you!! Have a great day.

 

I'd wait until lowering it then decide how much spacing you need, it's simple to add the bolt-on type spacers later. What may be flush to one guy might not be enough for someone else so best to wait IMO.
BTW your Tanabes will probably lower your back more than the front so here's a fix for that
My 09 G37xS (AWD) Lowered on Tanabe - Droopy Bum fix too!(PICS) - G35Driver

 

I just ordered 25mm spacers all around for my X for winter and I will be putting them on within a month.

 

You keep pimping that solution, Brad, and I'll keep shooting it down as a bad idea. Just like I did at the back half of that thread.

OEM and aftermarket lowering springs are not shaved flat, their coils are simply cut. As such, they need to form into a soft rubber top-seat in order to properly settle for a secure fitment. The 5/8" poly bushings are too hard to allow for that, and the end result is not good. Handling becomes... well, loose. Additionally, since the springs can't seat into the top-seats, that 5/8" spacer actually becomes an effective 1.0" lift. And as you'll read in that thread, the 3/8" bushings work great for a few weeks, but are too soft and will blow out.

If there's a solution here, bushings between the spring and upper-seat aren't it. Possibly bushings on the underside of the upper-seat, but that's going to take some skills and experimentation beyond what I was willing to play with.

 

Ok, I'm willing to admit defeat on that "fix", that original OP did seem to get by AFAIK, but

 

Actually, the G35 member created that thread 6 years ago, and commented there only on that same day. He never followed up on the mod. Not once. Half a year later, he was gone from the forum entirely. So it's anybody's guess whether or not he seemed to get by... he never followed up.

He also made a number of comments on how this mod "will definitely help in body-roll", as "a somewhat large improvement"... when that makes no sense whatsoever. In fact, it "helped" by increasing body roll, by virtue of the springs being unable to mold into the upper-seats. This reality is the exact opposite of his perception.

Also notice that this guy commented how he wouldn't recommend aftermarket swaybars because it makes the car twitchy. Srsly... WTF?

Hindsight is a wonderful thing, Brad. In my case, I'm a little embarrassed by the project. With that clarity of hindsight and personal experience, I'm calling total BS on the idea. Please stop recommending it.

 

I fitted 20mm spacers on the front and 25mm on the rears, using H + R (they're German, readily available in the UK)

H&R TRAK+® Wheel Spacers | Products || H&R Special Springs, LP

Not sure if they're available in the US, so this may not be too helpful !

 

H&Rs are a common spacer here in the US and one of the highest quality choices.
Those gunmetal Z wheels look great on that G too, nice job!^^^^^
Wish ours had those side markers too.

 

I agree those side markers are nice. Adds interest to an otherwise bland spot.

What do you think of the Ichaba spacers? Those appear to be well made. Same materials at least. (warning: stealth hijack).

Sean

 

Thumbs up for the in-house branded Wheel Spacers from B2 Auto Designs. Go find Chris in the Vendor's Forum.

 

I don't know Ichaba spacers, sorry. Mine were H&R Trak and they're made from 6061 aluminium (sorry - aluminum!)

Some of the more expensive ones are now made from 7075 which is a higher grade of metal, but 6061 has been used for many years and is a good grade.

It depends on whether you're going to drive it on track or just on the road. AFAIK spacers don't improve the handling and they're really just for stance aesthetics.

I had standard 6061 spacers on my 350Z and drove her round the Nurburgring a few times, (even spun her on ex-Muhle!) and never had any problems with the spacers, but I guess if you're often going to drive her 'vigorously' you'd want to get the best grade you can - it's not an area where you'd want to make too many compromises!

To get back to the thread from the OP - my car in the pictures above is on 18" wheels as I bought a set of Rays off a 370 owner and refurbished them so I'd have a set of wheels for my winter tyres. I'll put my 19" wheels back on in the springtime.

18" wheels fit over the brake calipers no problem. Be aware, though, that I kept the rolling radius the same as on my 19s so the traction control is dealing with the same size overall on the wheels.

 

That's exactly what I did. I sent a PM to B2 Auto Designs with my request. I'm not familiar with Chris however. I've only worked with Charles. Does Chris handle the spacers?

Sean

 

Right. His name is Charles. My bad.

I suspect he'll still give you a good deal, whatever you call him.