GroHZ30

I have an sc400 w/ xxr 526 18x9+35 at the front.
I would like to do the ls400 bbk thing but I don't know if the rim will clear the brakes.
I read somewhere before(long time ago) saying they don't but don't remember what sizes. tried looking for the information but couldn't find anything nor anything here int he forum. Maybe I had a dream... LOL

GroHZ30

ok so I kept looking around and found out that 526 18x8.5 +35 do clear the ls400 bbk...
My guess is that 18x9+35 do clear as well. Still I need someone that knows more to confirm if this true so i can start working on my car.

bigwes

I guess if u wanted to be safe u could get the ones with the lower offset, or u could buy spacers.

grm405

Measure the rotor clearance with the stock brakes. Use a ruler and measure the distance from the rotor face to the inside of the wheel spoke at the location of the caliper. If it is 2.5" minimum anywhere on the caliper radius then it will probably clear. If it is not, it will not clear. The LS rotor has a thicker hat than the SC400 rotor so the 2.5" corresponds to 2 7/8" clearance when you install the LS rotor. The LS caliper sticks out about 2 3/4" from its rotor but the shape means you need this clearance from almost the hat out to the outer edge of the caliper.

At least if you measure you have some idea what you are up against.

Gerry

Yohan84

I know this is old but did you ever find out if these work?? The reason i'm asking is that I just did the BBK upgrade last weekend and I have xxr 531 19' and they don't work at all. So I want to get the xxr 526 18 8.5 or a 9 even for the front but like you I don't know if they will work or not...

weeters

iTrader: (1)

They dont work. xxr sent me that set before the 968's. the 968's work fine. you can see the bbk on my car through the spokes but i also run 20 x9 front and 20x11 rear

Yohan84

Thank you for the quick response . So I should be good with 18x9 in the front and 18x10.5 in the rear. I'm going to go pick up the 968's today then Thanks again man big life saver

Kris9884

iTrader: (7)

It's mostly about the offset, not so much the width. Anything higher than a +30 would be a close fit depending on the wheel style. You can be sure that anything +25 or more aggressive would always fit.

Yohan84

Oh ok. Yeah my xxr 531 are +35mm I guess worst case is I can always just pick up two 531 that are +15mm offset and that would work right

Kris9884

iTrader: (7)

Yeah I'd say just grab a spacer for the 5-10mm and would be plenty. You're probably only off by 1 - 3mm as is.

Yohan84

So I know now that xxr 96818x9 +20 wheels fit for sure without spacers.

Penthos

iTrader: (1)

Do the 968 18x10.5 +20 work?

myLEXsc400

That's not true. Offset doesn't have much to do with it. Its spoke style and Disk size. I have a set of stepped lip 18x9 Work VS-KF's that are +20 offset and they do not clear my LS400 BBK. I had to get a custom 8mm spacer made just to run a safe 2.5mm gap btw the spokes and the caliper.

Kris9884

iTrader: (7)

You're absolutely right, I was thinking backwards. Most wheel styles over +25 should be good, more aggressive would NOT fit without spacers. My bad

myLEXsc400

Also not true. Stock SC wheels are +50 and dont clear bbk. My old set of BBS LM reps was 19x8.5 +35 and did not clear either. Like I said, what matters is the style of the spokes, but most importantly the Disk size, whether its low, medium or high

350z 35th anniversary wheels which are 18x8 +30 clear with LOTS of room. Thats because they are high disk