smaller wheels
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smaller wheels
so i got the 8 running well (omp replaced from rx specialist in coventry , nice guy )
the wheels were crap so were the front tyres (autoguard) so i put my spare winter set on there 17" with winter tyres wow what a diff , noise ride and roadholding . Has anyone else gone down to 17" ...if so any pics
the wheels were crap so were the front tyres (autoguard) so i put my spare winter set on there 17" with winter tyres wow what a diff , noise ride and roadholding . Has anyone else gone down to 17" ...if so any pics
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Re: smaller wheels
Mazda offered 17" wheels specifically for fitting winter tyres.
Has the added benefit of being slightly less likely to damage the rims by kerbing.
With the correct 225/50R17 tyres fitted, the rolling diameter is almost identical to 225/45R18, at least close enough to keep the speedo and gearing happy, though you can't mix front/rear without upsetting ABS/TCS/DSC .
The higher sidewall complies better over snow and 17" winter tyres are much cheaper and more available than 18".Has the added benefit of being slightly less likely to damage the rims by kerbing.
With the correct 225/50R17 tyres fitted, the rolling diameter is almost identical to 225/45R18, at least close enough to keep the speedo and gearing happy, though you can't mix front/rear without upsetting ABS/TCS/DSC .
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Re: smaller wheels
my mazda 3 has 17 inch rims as std with the same pcd as rx8 rims,not sure on width though...they have 205/50 17s on as std.
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Re: smaller wheels
Have a look at MX5 NC also.
If the rolling circumference changes, you can reprogram the PCM to the new value with Forscan.
And yes you cannot mix front and rear sizes. Even having different brand tyres front to rear was upsetting my DSC.
If the rolling circumference changes, you can reprogram the PCM to the new value with Forscan.
And yes you cannot mix front and rear sizes. Even having different brand tyres front to rear was upsetting my DSC.
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Re: smaller wheels
Those will have a smaller rolling radius than the standard RX8 tyres & will likely only be 7J on the width
You also need to look @ offset as well as PCD when considering swapping wheels over
If you gave some more details on your Mazda 3 (age/model) it would help
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Mandy's : 2019 30th Anniversary Mazda MX-5 RF # 1761/3000.
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Re: smaller wheels
its a 2005 mazda 3 sport with the twin cam 16valve 2.0 litre 150 bhp engine.
im not sure of the offset but my pz rims fit perfectly on it.
im not sure of the offset but my pz rims fit perfectly on it.
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Re: smaller wheels
just looked in the manual... 61/2 j rims. not really wide enough for the 8.
i wonder what rims went on the turbo version like carl the manc has?
i wonder what rims went on the turbo version like carl the manc has?
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Re: smaller wheels
The following I think...
Wheel
7Jx18 ET50
Tyre
215/45ZR18 91W
Mark's : 2023 Misano Blue BMW M135i XDrive.
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Mandy's : 2019 30th Anniversary Mazda MX-5 RF # 1761/3000.
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Re: smaller wheels
Carl (TheManc) doesn't get on here much these days but Nigel had a 2011 Mazda 3 MPS & would be able to confirm
Mark's : 2023 Misano Blue BMW M135i XDrive.
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Re: smaller wheels
I have set of 17 with winter tyres I won't use.
All 4 tyres are superb wheel could do with refurb but perfectly straight.
All 4 tyres are superb wheel could do with refurb but perfectly straight.
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Re: smaller wheels
my track wheels are 17" 17x8 front and 17x9 rear running a 235/45 17 all round.
Thanks, Stu
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Re: smaller wheels
Mix and match I have my PZ alloys on the car 225 40 18 on the front and 224 45 18 at the rear.The fronts aren't the correct tyre but more or less the same radiusMARKTHOMASBRAND wrote: ↑Sat Oct 26, 2019 2:08 pmCarl (TheManc) doesn't get on here much these days but Nigel had a 2011 Mazda 3 MPS & would be able to confirm
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Re: smaller wheels
So with reference to design 34 in the image, does that mean those wheels had a staggered setup front to rear tyre size wise.
Or did you just have the option of 235/40r18 on that wheel?
Thanks in advance
Or did you just have the option of 235/40r18 on that wheel?
Thanks in advance
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Re: smaller wheels
Staggered doesn't work on the 8.
Must be the same all round.
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Must be the same all round.
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Re: smaller wheels
sweeping statement is sweeping.
I've run staggered on an 8 and it works just fine, ta. You have to be careful in choosing the tyres so that the rolling diameter isn't a problem, but to say "It doesn't work" would be a bit over board.
The only other point that is worth taking note of is the suspension geometry of the 8. As standard it was designed for a square tyre setup, so you may find that putting wider boots on the rear may unbalance the handling, cause a little more understeer etc. etc. - as long as you are aware of this, and either accept it or make other changes to facilitate it, then crack on. I've tracked an 8 with staggered tyres a few times, I didn't like it, but as always others mileage will vary.
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Re: smaller wheels
Dan, out of interest what did you mix? I'm toying with the idea of trying out the replacement of one pair of OEM size (225/40) with 235/45, with a second pair to follow later on (essentially as a partial upgrade to spread the cost on my poor wallet).
I'd be interested to hear if you did similar - Bearing in mind I'm on the PZ geometry (or at least should be barring what the local potholes have to say about it), so your findings may not be as applicable if you were on coilovers at the time etc., but I'd be interested nevertheless.
I'd be interested to hear if you did similar - Bearing in mind I'm on the PZ geometry (or at least should be barring what the local potholes have to say about it), so your findings may not be as applicable if you were on coilovers at the time etc., but I'd be interested nevertheless.
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Re: smaller wheels
Go 235 x 40 all round
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Re: smaller wheels
I used 245/35R19 and 225/40R19. Something like a 0.4% difference so practically negligible in terms of rolling diameter and caused no issues for the TCS etc., but it did make the car want to understeer a little which wasn't to my taste.
Now I'm running 255/35R19s all round - because they were cheaper to buy and offer some rim protection - and find the turn in better and the balance mid-corner to be very good. I can tweak it with a bit of left foot braking and can also pivot on the throttle a bit too.
It is worth noting that the suspension on my car isn't standard, neither are the ARBs which will of course affect the balance of the car at the limit. I'm running standard R3 shocks, Eibach lowering springs and Racing Beat ARBs - although at the time of the test I was running stock ARBs.
Now I'm running 255/35R19s all round - because they were cheaper to buy and offer some rim protection - and find the turn in better and the balance mid-corner to be very good. I can tweak it with a bit of left foot braking and can also pivot on the throttle a bit too.
It is worth noting that the suspension on my car isn't standard, neither are the ARBs which will of course affect the balance of the car at the limit. I'm running standard R3 shocks, Eibach lowering springs and Racing Beat ARBs - although at the time of the test I was running stock ARBs.
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Re: smaller wheels
Staggered were fine on mine and on many others cars, 245 35 and 255 35 18. Not one issues, didn't try and kill me or destroy the handling of the car.
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RRP Parts: Full bridge, long tube header, cofs + tanks, pulleys, engine mounts, oil injectors, remap, race cat.
Other: Greddy sump, Autoexe exhaust, autoexe brake brace, ingalls engine brace, ultra racing f+r strut brace, hsd coilovers, whiteline Arbs, 4 pot brakes, r3 Diff, r3 interior and lots more
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