Is this ok?

Wheels, Suspension, Brakes & Tyres questions and answers

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

RS2000
Racing Driver
Posts: 680
Joined: Mon Nov 25, 2013 7:38 am
Vehicle: NB8A
Location: Newcastle

Is this ok?

Postby RS2000 » Wed Mar 05, 2014 10:12 pm

Hi,

The track NB I bought came with new eccentic superpro bushes. The lower arm rear bracket side plates don't have a great amount of material on the outside (see photo). However the front mounting covers the whole bush even with max. eccentricity. Camber is 2.8 neg

Does this allow unwanted movement / premature bush wear ?

DSC01712 (1024x683) (800x534).jpg


Thanks & Cheers
You do not have the required permissions to view the files attached to this post.

manga_blue
Forum Guru
Posts: 4897
Joined: Mon Apr 24, 2006 7:27 pm
Vehicle: NA8
Location: Moruya, NSW

Re: Is this ok?

Postby manga_blue » Wed Mar 05, 2014 10:32 pm

That's fine. The bolt holds and locks a steel centre pin to the chassis. The lower control arm holds the poly bush very tightly (you could regard the poly bush and the lower control arm as almost being fused together). The bush assembly works by having the poly rotate (with the control arm) around the steel centre pin.
’95 NA8

project.r.racing
Speed Racer
Posts: 3722
Joined: Sun Jan 18, 2009 10:16 pm
Vehicle: Non MX-5
Location: Glasshouse Mountains, QLD

Re: Is this ok?

Postby project.r.racing » Thu Mar 06, 2014 9:48 am

just like the other 1000s of eccentic bushes out there. normal.

RS2000
Racing Driver
Posts: 680
Joined: Mon Nov 25, 2013 7:38 am
Vehicle: NB8A
Location: Newcastle

Re: Is this ok?

Postby RS2000 » Fri Mar 07, 2014 9:28 pm

Ok, all good then

Thanks manga b & project r

speed
Speed Racer
Posts: 3471
Joined: Sun Jan 19, 2014 9:52 am
Vehicle: NA6
Location: Lugarno, Sydney

Re: Is this ok?

Postby speed » Sat Mar 15, 2014 7:11 am

The bolt appears to be set for maximum negative camber (The mark points left in the pic)
Mine currently point upwards. If I change my settings as per this pic, will it reduce the gap in the wheel arch any?
NA6 turbo - 140kw atw - not the most powerful but so much fun :D

User avatar
hks_kansei
Speed Racer
Posts: 6154
Joined: Tue Feb 03, 2009 10:43 am
Vehicle: NB8A
Location: Victoria

Re: Is this ok?

Postby hks_kansei » Sat Mar 15, 2014 7:39 am

no

Camber is just how the wheel tilts, it has nothing to do with static height.
1999 Mazda MX5 - 1989 Honda CT110 (for sale) - 1994 Mazda 626 wagon (GF's)

wade
Fast Driver
Posts: 151
Joined: Fri Mar 14, 2014 3:09 pm
Vehicle: NA6

Re: Is this ok?

Postby wade » Sun Mar 16, 2014 4:07 pm

speed wrote:The bolt appears to be set for maximum negative camber (The mark points left in the pic)
Mine currently point upwards. If I change my settings as per this pic, will it reduce the gap in the wheel arch any?


Yours is probably set for max caster then ..... Which is a good thing.

If you turn it around it may increase the gap in the front of the wheel arch (ie less castor)

RS2000
Racing Driver
Posts: 680
Joined: Mon Nov 25, 2013 7:38 am
Vehicle: NB8A
Location: Newcastle

Re: Is this ok?

Postby RS2000 » Tue Mar 18, 2014 6:27 pm

wade wrote:
speed wrote:The bolt appears to be set for maximum negative camber (The mark points left in the pic)
Mine currently point upwards. If I change my settings as per this pic, will it reduce the gap in the wheel arch any?


Yours is probably set for max caster then ..... Which is a good thing.

If you turn it around it may increase the gap in the front of the wheel arch (ie less castor)


No, max castor is achieved with the lower rear mount fully towards the outside (as per photo) plus the front mount fully towards the centre of the car. However, moving the front mount in, then reduces the camber - it's a compromise.

Cheers


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

Who is online

Users browsing this forum: No registered users and 348 guests