Originally Posted by
3MPSPWR
Hi,
So after fitting my new wheels over the weekend 18X8.5 with a +45 offset. I told my mate that was fitting them that i wanted to run 235/40/R18s for my next set. We both had a look at the inner clearance and he reckons i should stick to my 225s instead as 235s MAY scrub on the struts.
I later drove the car on the highway and realised that i had the exact same vibration as i did when my stock tires were about to go. I was already told my current set wont last too long, after only driving it for about 17,000km. (Yokohama S-Drives) Car currently sits @ 37,000km.
So i'm after another set, but the problem is im not sure if i should go 235s or 225s as i'm also getting coilovers put in by Fulcrum... Not sure if that will change much?
I did have a look at the inner clearance today just felt it and it seemed like between the rims and the strut i could just fit my index finger in. So i dunno if 235s will scrub or not.
After looking at the USA forums, a few punters there are running 245s on the same setup?? Kinda confusing the hell outta me.
What does people think??
Easy.
225 --> 235 adds 5mm either side of the tire when you compare fitment to the same rim.
If you can fit any finger in the space, well, you're finger is a good deal more than 5mm so...my bet would be a tentative ok on the inside, although what happens through the full length of suspension travel needs to be considered.
I find it hard to imagine it not rubbing on the guard though; with 225 I can just see it staying clear, maybe. With 235 my bet would be on rubbing quite a lot, even if it's not now.
---------- Post added at 10:46 PM ---------- Previous post was at 10:44 PM ----------
Actually. Even easier.
RX-8 +50 with 235/40R18 fit on the inside (struts).
Therefore you're proposed 235/40 @ +45 should be well clear of the struts. It's the gaurds you'll have to worry about.
"Blue Meanie" 2007 Aurora Blue MPS 3 - 18x8.5+44 SSR GTX01 - 235/40R18 Michelin PS5 - 3.5" ETS TMIC - CPE stg 2 mount - HKS/CPE BPV - 2XS inlet - 2XS short shift - Corksport turbo manifold - HT 98 octane tune - Leather/Aluminium handbrake - Momo shifty knob - 7" touchscreen - JDM Mazda Retractable dashtop screen assembly - Bespoke Raspberry Pi Android based GPS/Carplay and instrumentation - 36AH reserve battery and C-TEK isolator - TEIN Street Advanced coilovers 1" drop - Superpro bushings - 220Kw/410Nm.
"Lipstick" 2013 Velocity Red MPS 3 - 18x7.5+48 Enkei RPF1 -225/40R18 Federal RS-RR - CPE TMIC - COBB inlet - CPE stg 2 mount - COBB Stage 1 98 octane tune - COBB shifty knob - 2XS short shift - 2XS turbo manifold.