RS Watanabe's 15x10 vs 17x10??

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SR240Z
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RS Watanabe's 15x10 vs 17x10??

Post by SR240Z » Thu May 16, 2019 1:37 pm

I am obsessed with these wheels... have always been and always will be. The plan is to get some for the road going Z in 15x8 but the race car is the priority right now… The wifes said finish it or sell it.....

I have a set of x4 16x10 Simmons and x3 16x10 Schmidts so not enough to make x2 sets and trying to buy a single Schmidt is proven problematic. I am still looking into getting a Schmidt centre casted and modified to fit Arrow Wheel barrels but could be $$ . Tyre options to suit 16x10 are also limited so am considering going 15" or 17" wheels.

With the large rotors on the race car (13.06” diameter + 6 pot calliper) I am concerned about brake clearance and I would expect 15x10 RS Wat’s are unlikely to clear …. ?

Does anyone have any experience with 15’ Wats and what they are like with brake clearances?

maaaaark
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Re: RS Watanabe's 15x10 vs 17x10??

Post by maaaaark » Thu May 23, 2019 6:27 pm

I have been installing 305mm rotors and 4 pots on my z and have had issues with caliper clearance with my 16"x 8.5 arrow wheels, i was thinking about watanabes but didn't want to risk buying them and having issues since i didn't know if my breaks would fit.
So for the time being i have some 17x8.5 rota rbx, tyres 40x235. These still dont have enough spring clearance with the standard springs so coilovers are a good option.
260z 2 seater l28

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mikey
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Re: RS Watanabe's 15x10 vs 17x10??

Post by mikey » Fri May 24, 2019 7:48 am

Sorry, I can't say much about 15" RS's, but I run 16" RS's with 310mm rotors and R32 GTR 4 pots just fine.

Image

I can also confirm that finding tires in 16s are indeed very limited

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mikey
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Re: RS Watanabe's 15x10 vs 17x10??

Post by mikey » Fri May 24, 2019 7:51 am

Actually, I tell a complete lie! I'm running spacers in the front so the spokes clear the calipers.

It's obviously been a long while since I've worked on my car!

maaaaark
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Joined: Tue Sep 29, 2009 3:41 pm
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Re: RS Watanabe's 15x10 vs 17x10??

Post by maaaaark » Sat May 25, 2019 9:02 am

yeah that's the issue i had with the 16" arrows,spokes not clearing front of caliper, i would of had to have about 8mm spacers all around but didnt want to have any
260z 2 seater l28

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