The car sees a bit of track work so has some negative camber - more on the rear than the front, so the rears have proportionally more wear on the inside edges. Also naturally more overall wear on the rears than the fronts.
Will swapping the fronts with the rears to even out the tyre wear cause any problems other than having less front grip due to less remaining tread?
Swapping fronts with rears to even out the wear?
Moderators: timk, Stu, zombie, Andrew, -alex, miata
- davekmoore
- Speed Racer
- Posts: 4681
- Joined: Thu Apr 30, 2009 1:53 am
- Vehicle: NC
- Location: Esprick, UK
Swapping fronts with rears to even out the wear?
UK since return: Standard NC2 (horrid), C200K, ND2 BBR, NC2 BBR200 (loved it), NC BBR300 (better than BARMY), V-Special, turbo NB8B (my 84th car)
- NitroDann
- Forum sponsor
- Posts: 10280
- Joined: Thu Nov 05, 2009 12:10 pm
- Vehicle: NA6
- Location: Newcastle NSW
- Contact:
Re: Swapping fronts with rears to even out the wear?
Less remaining tread=/= less grip.
Dann
Dann
http://www.NitroDann.com
speed wrote:If I was to do it again, I wouldn't even consider the supercharger.
- bruce
- Speed Racer
- Posts: 7708
- Joined: Fri Apr 25, 2003 11:00 am
- Vehicle: NA8 - Turbo
- Location: Victoria
- Contact:
Re: Swapping fronts with rears to even out the wear?
I'd swap 'em. If the tyres are not directional, you should do them diagonally (I think?)
- davekmoore
- Speed Racer
- Posts: 4681
- Joined: Thu Apr 30, 2009 1:53 am
- Vehicle: NC
- Location: Esprick, UK
Re: Swapping fronts with rears to even out the wear?
NitroDann wrote:Less remaining tread=/= less grip.
Dann
Fair comment Dann. Just trying to wear them out evenly.
UK since return: Standard NC2 (horrid), C200K, ND2 BBR, NC2 BBR200 (loved it), NC BBR300 (better than BARMY), V-Special, turbo NB8B (my 84th car)
- NitroDann
- Forum sponsor
- Posts: 10280
- Joined: Thu Nov 05, 2009 12:10 pm
- Vehicle: NA6
- Location: Newcastle NSW
- Contact:
Re: Swapping fronts with rears to even out the wear?
My reply was basically saying that there is no concerns with swapping tyres regarding balanced grip so go for it.
Dann
Dann
http://www.NitroDann.com
speed wrote:If I was to do it again, I wouldn't even consider the supercharger.
- taminga16
- Speed Racer
- Posts: 3617
- Joined: Thu Aug 06, 2009 12:22 am
- Vehicle: NC
- Location: Central Victoria
Re: Swapping fronts with rears to even out the wear?
bruce wrote:I'd swap 'em. If the tyres are not directional, you should do them diagonally (I think?)
I do not believe that it is recommended practice to diagonally rotate radial tyres, I rotate mine front to rear at 10,000 klm intervals.
Greg.
When you turn your car on, does it return the favour?
- davekmoore
- Speed Racer
- Posts: 4681
- Joined: Thu Apr 30, 2009 1:53 am
- Vehicle: NC
- Location: Esprick, UK
Re: Swapping fronts with rears to even out the wear?
Gotcha Dann. Job done with the directional roadies which had been used for a few track days as well as plenty of road miles. Should mean they all wear out roughly at once, although not much left now on the inside edges of what were the rears.
The track tyres are not directional. I can see the sense in swapping them diagonally if I was doing it fairly regularly and starting with new tyres. How well would it work though starting with used R specs and with a car that mostly goes round anti-clockwise circuits?
bruce wrote:I'd swap 'em. If the tyres are not directional, you should do them diagonally (I think?)
The track tyres are not directional. I can see the sense in swapping them diagonally if I was doing it fairly regularly and starting with new tyres. How well would it work though starting with used R specs and with a car that mostly goes round anti-clockwise circuits?
UK since return: Standard NC2 (horrid), C200K, ND2 BBR, NC2 BBR200 (loved it), NC BBR300 (better than BARMY), V-Special, turbo NB8B (my 84th car)
- Jeo
- Speed Racer
- Posts: 3648
- Joined: Thu Jun 26, 2008 9:33 am
- Vehicle: NB8B
- Location: Canberra
Re: Swapping fronts with rears to even out the wear?
Depends on the track really. Some corners will see more wear than others.
-
- Speed Racer
- Posts: 3722
- Joined: Sun Jan 18, 2009 10:16 pm
- Vehicle: Non MX-5
- Location: Glasshouse Mountains, QLD
Re: Swapping fronts with rears to even out the wear?
davekmoore wrote:NitroDann wrote:Less remaining tread=/= less grip.
Dann
Fair comment Dann. Just trying to wear them out evenly.
you'll never wear them out evenly. but you'll slow down the inside wear issue.
- davekmoore
- Speed Racer
- Posts: 4681
- Joined: Thu Apr 30, 2009 1:53 am
- Vehicle: NC
- Location: Esprick, UK
Re: Swapping fronts with rears to even out the wear?
So the track tyres are non directional. They are used ones, which is what I normally buy (they'll never be the fastest option but they're cheap and, unlike even very good road tyres they stay consistent for 10 laps instead of overheating after 3). There was no noticeable camber wear when I got them. The MX5 has 2 degrees of negative camber on the rear and one degree on the front. The rear tyres seem to have worn a great deal more on the inside edges than just 2 degrees would suggest. The fronts seem to have hardly any camber wear.
So putting the rears diagonally across to the fronts will help even out the camber wear and what seems to be a 75% rear:25% front wear differential.
But it will also mean the wear on the fronts will be at least 3 degrees the opposite way to how the tracking is set up.
Is there any problem with that?
If so should I just do the rears to the fronts without going diagonally and suck up the extra camber wear?
So putting the rears diagonally across to the fronts will help even out the camber wear and what seems to be a 75% rear:25% front wear differential.
But it will also mean the wear on the fronts will be at least 3 degrees the opposite way to how the tracking is set up.
Is there any problem with that?
If so should I just do the rears to the fronts without going diagonally and suck up the extra camber wear?
UK since return: Standard NC2 (horrid), C200K, ND2 BBR, NC2 BBR200 (loved it), NC BBR300 (better than BARMY), V-Special, turbo NB8B (my 84th car)
- Luke
- Racing Driver
- Posts: 781
- Joined: Sat May 23, 2009 1:11 am
- Vehicle: NC
- Location: Wetherill Park NSW
Re: Swapping fronts with rears to even out the wear?
You must be spinning up the rears way too much to wear them out quicker than the fronts. I wear the fronts on my SE quicker than the rear.
Also, I have 1.2 degrees of camber, front and rear. I didn't see much of a point in increasing the rear any further than fronts would go.
I have noticed if I start sliding around, I do start cooking the insides of the rears though, comes with power.
As for rotating tyres around, never had an issue doing it. Didn't notice any impact on lap times either. I wouldn't say you would have lack of grip either, as it is only a marginal difference.
I just rotate tyres to get the maximum life out of them.
I also rotate them based on what tracks I will be doing, as I have a fair idea of which tyre will take the most punishment. ie Wakefield Park kills the front left tyre.
Have done it with asymmetric KU36's, which is easy as, as you can put them on any corner you want since they are non-directional.
Also have done it with directional Achilles 123S.
Could only do front to rear on these to keep them pointed the right way.
After a while I got the tyres flipped on the rims, so a left/right swap could be done, as you tend to hurt only your left tyres at Wakefield.
My main tip would simply be, look at how they are wearing, and put your best tyre on the one that will wear most, and worst on the one that will wear the least.
Also, I have 1.2 degrees of camber, front and rear. I didn't see much of a point in increasing the rear any further than fronts would go.
I have noticed if I start sliding around, I do start cooking the insides of the rears though, comes with power.
As for rotating tyres around, never had an issue doing it. Didn't notice any impact on lap times either. I wouldn't say you would have lack of grip either, as it is only a marginal difference.
I just rotate tyres to get the maximum life out of them.
I also rotate them based on what tracks I will be doing, as I have a fair idea of which tyre will take the most punishment. ie Wakefield Park kills the front left tyre.
Have done it with asymmetric KU36's, which is easy as, as you can put them on any corner you want since they are non-directional.
Also have done it with directional Achilles 123S.
Could only do front to rear on these to keep them pointed the right way.
After a while I got the tyres flipped on the rims, so a left/right swap could be done, as you tend to hurt only your left tyres at Wakefield.
My main tip would simply be, look at how they are wearing, and put your best tyre on the one that will wear most, and worst on the one that will wear the least.
2022 BRZ 10AE
2021 GR Yaris
2008 Peugeot HDi Lemans, Number 1027/2000, White with Red stripes
2021 GR Yaris
2008 Peugeot HDi Lemans, Number 1027/2000, White with Red stripes
Return to “MX5 Wheels, Suspension, Brakes & Tyres”
Who is online
Users browsing this forum: No registered users and 220 guests