11 inch wide rear wheels on FD
03-20-14, 03:17 PM
#29
Sorry for straying off topic a bit...but Blue TII do you experience alot of tramlining or feeling the car tracking the grooves in the road with those width of tyres?...I notice your wheel offsets are +45 which is close to stock so maybe this helps a bit?...Thanks
03-20-14, 03:48 PM
#30
Blue TII do you experience alot of tramlining or feeling the car tracking the grooves in the road with those width of tyres?...I notice your wheel offsets are +45 which is close to stock so maybe this helps a bit?...Thanks
Keeping close to the stock offset really helps cut down on the amount of trammeling.
With new tires (even the DOT-Rs) I was surprised to find almost no ill effects from the extreme width, but as they wore to slicks the car would trammel a bit. Only about as much as when it has stock wheels with V710 slicks though.
I put the pictured wheels/tires on my stock 60k mile RX-8 and it also drove great, but they quickly took out some rear bushings so the RX-8 now trammels in the rear (opposite of normal trammeling).
In my opinion narrower wheels and tires in the wrong (stanced) offset have a worse affect on FD driveability as Mazda really worked on optimizing the suspension, its not stick axle and strut.
I just redid the bushings/pivots in the FD after one season on 18x10.5 +38 265s street tires took them out, but I know racing with this much traction I will be doing them again... soon.
FD had almost 40k on it when I bought it, now at 60k.
The HUGE driveability problem wide wheels/tires has is the car hydroplanes very easily in standing water. I have been caught in monsoon weather on road trips and you just have to drive 45mph on the freeway.
Keeping close to the stock offset really helps cut down on the amount of trammeling.
With new tires (even the DOT-Rs) I was surprised to find almost no ill effects from the extreme width, but as they wore to slicks the car would trammel a bit. Only about as much as when it has stock wheels with V710 slicks though.
I put the pictured wheels/tires on my stock 60k mile RX-8 and it also drove great, but they quickly took out some rear bushings so the RX-8 now trammels in the rear (opposite of normal trammeling).
In my opinion narrower wheels and tires in the wrong (stanced) offset have a worse affect on FD driveability as Mazda really worked on optimizing the suspension, its not stick axle and strut.
I just redid the bushings/pivots in the FD after one season on 18x10.5 +38 265s street tires took them out, but I know racing with this much traction I will be doing them again... soon.
FD had almost 40k on it when I bought it, now at 60k.
The HUGE driveability problem wide wheels/tires has is the car hydroplanes very easily in standing water. I have been caught in monsoon weather on road trips and you just have to drive 45mph on the freeway.
03-20-14, 05:41 PM
#31
trammeling
I was actually wondering about the hydroplaning...such wide tyres on a light car like the fd...thanks for touching on that.
Do you think polyurethane bushings like the Superpro kit would last longer?...what exactly did you have to change in your fd post season?...was it all the bushings?
03-21-14, 01:20 PM
#34
Do you think polyurethane bushings like the Superpro kit would last longer?...what exactly did you have to change in your fd post season?...was it all the bushings?
Yes, I had to change all the bushings and stock spherical bearings- very expensive.
I used the poly bushings to replace stock bushings where appropriate and Mazda Competition "bushings" to replace the bushed spherical bearings. I hope they last longer.
Yes, I had to change all the bushings and stock spherical bearings- very expensive.
I used the poly bushings to replace stock bushings where appropriate and Mazda Competition "bushings" to replace the bushed spherical bearings. I hope they last longer.
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