Max size of wheels

Wheels, Suspension, Brakes & Tyres questions and answers

Moderators: timk, Stu, zombie, Andrew, -alex, miata

User avatar
d-mag
Road Track Rally
Posts: 529
Joined: Fri Jun 27, 2008 9:34 am
Vehicle: ND - Turbo
Location: Melbourne

Max size of wheels

Postby d-mag » Sat Jan 24, 2009 7:50 pm

30 series tyres are VERY low. If your in Sydney....forget it. The rims wouldn't last a couple of months.

I agree with you greggtr, I like the look of bigger wheels on smaller cars (I wouldn't go above 15" personally but I like looking at other peoples rides :) )
When I was looking for an NA I test drove one with 17's and one with 18's.
The 17's were acceptable but the 18's (18 x 7.5, not sure of the offset) were wrapped in rubber bands that that rubbed the guards going over any bumps. They'd be hard to live with day to day.
MX5 Wanted. SE or NC (forced induction preferred :twisted: )

Wivvix
Fast Driver
Posts: 226
Joined: Tue Jun 24, 2008 3:30 pm
Vehicle: ND - RF
Location: Perth, WA

Max size of wheels

Postby Wivvix » Sat Jan 24, 2009 7:59 pm

Well greg it sounds like you want some serious responses.

All I have to say is that if you enjoy actually driving your mx5, then you're better off reconsidering 17's, 18's at the absolute most.
In my opinion 17's totally screw with the handling on an NA, 18s would be abominable, 19s would be ridiculous but fine for a show car, but the impracticality of having painted on tyres on street roads, well you'd be replacing the wheels in 6mo-1yr if it's a daily driver.

What wheel size are you running at the moment? 17s look nice but yeh, they make the car behave much more clumsy, sorta like walking around in clogs...

User avatar
meanmx
Racing Driver
Posts: 1493
Joined: Mon Aug 14, 2006 11:41 pm
Vehicle: NB8B
Location: Point Cook, Melbourne

Max size of wheels

Postby meanmx » Sat Jan 24, 2009 10:28 pm

Wivvix wrote:Well greg it sounds like you want some serious responses.

All I have to say is that if you enjoy actually driving your mx5, then you're better off reconsidering 17's, 18's at the absolute most.
In my opinion 17's totally screw with the handling on an NA, 18s would be abominable, 19s would be ridiculous but fine for a show car, but the impracticality of having painted on tyres on street roads, well you'd be replacing the wheels in 6mo-1yr if it's a daily driver.

What wheel size are you running at the moment? 17s look nice but yeh, they make the car behave much more clumsy, sorta like walking around in clogs...


Makes me believe you haven't actually dríven a 5 on 17's. A few people who actually have will tell you that reasonably light weight 17" wheels are not so bad handling wise. In fact I can't say that I have been on many club runs where I have been out cornered by someone with the same skill level which according to everyone must happen because I have 17's. Now chromies are a different matter completely. Tried chromies for a bit and couldn't wait to get rid of them.

Now to the original posters questions-the largest I have seen on an NA is 18's and that was only one I have ever seen. I think you are going to have a hard time trying to find an answer to this question as they don't seem to go any larger than 16" here. I can't see a reason why 19's wont fit with the right offset but I don't think you will be able to get the car very low over them. If you do them please send me a pic as I have often contemplated doing this. And you're right, there is a lack of forebearence on this forum for different styles but they are nice guys and generally mean well as long as you don't push the boundaries. I mean why else would someone buy an MX5 apart from handling, couldn't be because it is a good looking convertable could it???? :shock:

Ben
2014 VW Mk7 Golf R
2001 Black NB8B viewtopic.php?f=57&t=58136
1986 Mazda Luce Royal Classic (13BT Mazda 929)

User avatar
Matty
Racing Driver
Posts: 1652
Joined: Wed Apr 23, 2003 11:00 am
Vehicle: NB8A
Location: Melbourne
Contact:

Max size of wheels

Postby Matty » Sat Jan 24, 2009 10:38 pm

I'm guessing that most people around here haven't been around long enough to know/have met Greg. He's quite familiar with MX-5s and their handling, and has turned in some fairly handy lap times too. And he's been nice enough to clearly state his goals (ie, street, looks).

Honestly I don't know if the tyres will fit. 215 as a width is fine (guys in the US are running 225s and 245s without much issue - but the offset has to be just right...)

But the overall diameter in combination with that might be an issue, particularly on an NA (NBs have a bit more clearance). Just because you can lower the coilovers doesn't help if the tyre is rubbing the guard.

User avatar
bigdog
King of the kennel
Posts: 2233
Joined: Wed May 25, 2005 3:07 pm
Vehicle: NB SP
Location: Blue Mountains
Contact:

Max size of wheels

Postby bigdog » Sat Jan 24, 2009 11:35 pm

Ok, this is what the tire size calculator tells us:

Current Tire New Tire Difference
Diameter inches (mm) 23.26 (590.9) 24.08 (611.6) 0.82 (20.7) 3.5%
Width inches (mm) 8.07 (205) 8.46 (215) 0.39 (10) 4.8%
Circumference inches (mm) 73.09 (1856.37) 75.65 (1921.4) 2.56 (65.03) 3.5%
Sidewall Height inches (mm) 3.63 (92.25) 2.54 (64.5) -1.09 (-27.75) -30%
Revolutions per mile (km) 866.93 (538.36) 837.59 (520.14) -29.34 (-18.22) -3.4%

So it looks dooable to my inexperienced eye. I would cut a plywood disc the right diameter and bolt it up on the front and check your clearances. As you've said you're not concerned with handling, just looks and basic driveability this would be the easiest way to assess the situation.
Image
Marvin - '02 Silver SP - BD, PSS9, Guru, Build #62 Cardomain

Wivvix
Fast Driver
Posts: 226
Joined: Tue Jun 24, 2008 3:30 pm
Vehicle: ND - RF
Location: Perth, WA

Max size of wheels

Postby Wivvix » Sun Jan 25, 2009 2:42 am

meanmx wrote:Makes me believe you haven't actually dríven a 5 on 17's. A few people who actually have will tell you that reasonably light weight 17" wheels are not so bad handling wise. In fact I can't say that I have been on many club runs where I have been out cornered by someone with the same skill level which according to everyone must happen because I have 17's. Now chromies are a different matter completely. Tried chromies for a bit and couldn't wait to get rid of them. And you're right, there is a lack of forebearence on this forum for different styles.

Breaking News: Recent study suggests people have differing opinions!


I've dríven NA's on 14s, 15s, 16s, and 17s. I also own full sets of 14's, 15's and 17's which i've swapped several times over the past 6 months. It's a matter of personal taste, and how you expect the car to drive/feel especially through corners and such. I didn't say anywhere that driving with a particular size wheel/tyre would have the effect of reducing cornering capability, I just said I personally don't like how the NA feels on 17s. It doesn't feel as poised as on 185/195's.

Greg isn't talking about 17" though anyway, he's talking about 19". Sure it might be physically possible to fit 19's, but to someone who appreciates the handling of an mx5 on 14's or 15's, its going to drive and feel VERY different on 19s. The wheels might look good to his eye but unless he's got some high end suspension kit, it'll be a pretty harsh ride.

Lack of forbearance for different styles? That's rich considering you're pretty intolerant yourself of differing, yet valid opinions.

greggtr

Max size of wheels

Postby greggtr » Sun Jan 25, 2009 8:19 am

Ok...

Firstly thanks for the people who submitted "value add" comments... I like the idea of a creating a dummy wheel from MDF/ply , will give it a go.

And Gday Matty.. its been a while

I have been around the MX5 scene for a while now....

I know what’s its like to corner quickly and what good handling is.... As I own a full time Mx5 race car that laps Philip Island in the mid 1.40's running 255/40/17 (shock horror). How many of you with 14"/15" wheel guys can say that?

I recently bought another one just for everyday running around taking corners at under 15km/h, which a hyundai can do. Lets face it, the MX5 at the best of times is not a good looking sports car, and until most people drive one think it a girls car or for Gays (not offence intended). I personally like the car's character (not just handling) but I think it can be improved by larger wheels. With 14" they look ridiculous like a shopping trolley or a dodgem-car.

The question was not whether you would like the look or handling but will they fit....

Thanks again for those that tried to help...

G.

User avatar
Mr_Q
Racing Driver
Posts: 814
Joined: Tue Aug 10, 2004 4:41 pm
Vehicle: NB SE
Location: Sydney, Australia
Contact:

Max size of wheels

Postby Mr_Q » Sun Jan 25, 2009 9:12 am

greggtr wrote:Lets face it, the MX5 at the best of times is not a good looking sports car

Are you sure it's an MX5 you're talking about here? :shock:

As for the rims - you should be able to squeeze 19" rims in there, but it really won't be a car you'll want to drive much. "Uncomfortable" will take on a whole new meaning. :)
Mister Q
Had: Red 2004 SE, Red 1993 NA8 Clubman, Green 1991 NA6 LE

Fatty
Speed Racer
Posts: 3175
Joined: Fri Feb 03, 2006 10:39 am
Vehicle: NA6
Location: Melbourne

Max size of wheels

Postby Fatty » Sun Jan 25, 2009 9:20 am

without knowing your background or experience, we can only offer as much information as possible to try and help you make a good, informed decision.

you may not like some of the answers, or the humour that goes along with it, but hey at least we're trying to be helpful.

sounds like you've got a pretty nice race car there, sorry for going OT but you got any pics of it? sounds like a beast.

User avatar
Hellmun
Racing Driver
Posts: 979
Joined: Sat Feb 10, 2007 1:15 pm
Vehicle: NB8B - Turbo
Location: Wollongong,NSW

Max size of wheels

Postby Hellmun » Sun Jan 25, 2009 12:30 pm

I'm currently trying 225/50/15's on the track. They're dunlop D01J's and they're on +36 offset wheels. With camber and the guards rolled they fit. Those are 1.2 inches taller than standard and I got them to fit on an NB8B. Those should be much worse than what your suggesting and it didn't cause much trouble to get them to fit.

User avatar
16bit
Speed Racer
Posts: 2346
Joined: Wed Nov 29, 2006 1:51 pm
Vehicle: NB8A - Supercharged
Location: Brisbane Southside

Max size of wheels

Postby 16bit » Sun Jan 25, 2009 1:42 pm

i have a set of 225 50 15s aswell. I have cut guards though so should not be that much of a drama. either way its you car do as you wish I still stand by that its a bad idea.
98 evo gold - rotrexed and loving it.

This post has been printed using recycled pixels

User avatar
Matty
Racing Driver
Posts: 1652
Joined: Wed Apr 23, 2003 11:00 am
Vehicle: NB8A
Location: Melbourne
Contact:

Max size of wheels

Postby Matty » Sun Jan 25, 2009 1:56 pm

greggtr wrote: Lets face it, the MX5 at the best of times is not a good looking sports car...

Not with a Veilside kit, anyway! :P

You might find some answers on miataforum, but I suspect you'll have to wade through a lot of the same "OMG too heavy/handling/too big/won't someone please think of the children!" type responses.

wun911
Speed Racer
Posts: 2114
Joined: Tue Sep 11, 2007 12:13 pm
Vehicle: ND - 2 GT
Location: Melbourne

Max size of wheels

Postby wun911 » Sun Jan 25, 2009 3:43 pm

Soz I dont know how you got the numbers but can some one tell me the standard size of SE with the 17" rims??
every ounce counts

User avatar
meanmx
Racing Driver
Posts: 1493
Joined: Mon Aug 14, 2006 11:41 pm
Vehicle: NB8B
Location: Point Cook, Melbourne

Max size of wheels

Postby meanmx » Sun Jan 25, 2009 5:58 pm

Wivvix wrote:I didn't say anywhere that driving with a particular size wheel/tyre would have the effect of reducing cornering capability


Wivvix wrote:In my opinion 17's totally screw with the handling on an NA


hmmmmm

Wivvix wrote:Lack of forbearance for different styles? That's rich considering you're pretty intolerant yourself of differing, yet valid opinions.


That's funny considering I have one of the most individual cars in this place. Besides which you aren't offering a different opinion you are just regurgitating the same thing I have heard from a million other people on here over the last 2 1/2 years when talk turns to larger than 16" on an NA. I wasn't personally having a go at you anyway about lack of forbearance, just the general forum theme. Sorry if you took it that way. Personally I can't wait to see 19's on an NA but that's the autosalon side of me coming out

Ben
2014 VW Mk7 Golf R
2001 Black NB8B viewtopic.php?f=57&t=58136
1986 Mazda Luce Royal Classic (13BT Mazda 929)

Fatty
Speed Racer
Posts: 3175
Joined: Fri Feb 03, 2006 10:39 am
Vehicle: NA6
Location: Melbourne

Max size of wheels

Postby Fatty » Sun Jan 25, 2009 6:24 pm

i know this is one of those topics that gets meanmx hot under the collar, as he's had more than his fair share of comments about his larger wheels.

i have dríven fatfreddy's car on 17's and i must admit i was surprised at how well it handled. i guess it comes down to the weight of the wheels, everyone assumes big wheels are going to be very heavy but that's not always the case. also, his car has power steering. with my car, wth no power steering, even my 16's were too heavy for day to day driving. and they were pretty light (for their size) too. in my case the oem na8 clubman 14's have proven to be the best rim for my car, after trying about 5 different options.

anyway it's not my intention to start the debate up again... this post is more along the lines of... can't we all just get along? :lol:

for example, meanmx's car is just about polar opposite to what i have done to my car. we both have done a lot of mods to our cars, but just with a different goal in mind. it doesn't change the fact that he is one of the guys i have the most respect for, and the most admiration for his car.

and i know he was scratching his head and thinking "wtf?" when i fitted the manual window winders to my car, but he respects my goals , even tho they are different to his own. we seem to have a mutual respect even tho our cars are so completely different.

so greg, please stick around. we all have different goals with our cars but at the end of the day we're all just trying to help each other out.

ok, group hug everyone, ok? :lol:


Return to “MX5 Wheels, Suspension, Brakes & Tyres”

Who is online

Users browsing this forum: No registered users and 114 guests