Are the NA8 front calipers the same as the NA6?

Discussions relating to MX5 Tyre choice, Wheels, Brakes Suspension components and other items to keep you going around corners, stuck to the ground or stopping on a dime.

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Mikkels
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Are the NA8 front calipers the same as the NA6?

Post by Mikkels » Sun Feb 24, 2013 9:30 pm

I have used my NA6 front calipers with 1.8 rotors and mounts and just wondered if the NA8 front calipers are in fact different even though the NA6 bolt up OK?

Don
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Angreal
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Re: Are the NA8 front calipers the same as the NA6?

Post by Angreal » Sun Feb 24, 2013 10:14 pm

Mikkels wrote:I have used my NA6 front calipers with 1.8 rotors and mounts and just wondered if the NA8 front calipers are in fact different even though the NA6 bolt up OK?

Don
The NA8C ones are bigger

brownie
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Post by brownie » Sun Feb 24, 2013 11:38 pm

Calipers between NA6C and NA8C are indeed identical,It's just the cradles(brake pad holder) and rotors that are different

siren676
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Post by siren676 » Sun Feb 24, 2013 11:57 pm

damn it mark quit giving me things to add to my to-buy list :twisted: :lol:
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brownie
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Post by brownie » Mon Feb 25, 2013 10:20 pm

What...you haven't done the "BIG" brake conversion yet ?.
Your safe for a bit,Our part's procurement guy is home at the moment,Not due back in Japan for another month yet.
And then 6-8 weeks before the next container,
Just hope the Japs are stock piling Roadsters for us.They usually do.

siren676
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Post by siren676 » Mon Feb 25, 2013 10:36 pm

First time i'd heard you only needed the carrier to upgrade them
Thought you had to swap callipers and everything so threw it in the cbf basket.

Ive got a few things to sort out before doing any more mods, mainly cert related stuff. But you will hear from me at some point
1990 NA6C MX5

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Post by MrGrey » Sat Jul 06, 2013 6:29 pm

I picked up some brake calipers from a 2004 NB today. (thank you Donovan!) I just need to track down a set of new rotors and I will then be able to go from 9.25" rotors to 11" rotors :)
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and I had the pleasure of experiencing the awesomeness of Donovans V8 stealth monster..... OMFG ME WANT NAO!
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Post by Snapfrozen » Sat Jul 06, 2013 7:29 pm

brownie wrote:Calipers between NA6C and NA8C are indeed identical,It's just the cradles(brake pad holder) and rotors that are different
100% correct. That's all I bought to do the swap.

Donovan
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Post by Donovan » Sun Jul 07, 2013 4:37 pm

Snapfrozen wrote:
brownie wrote:Calipers between NA6C and NA8C are indeed identical,It's just the cradles(brake pad holder) and rotors that are different
100% correct. That's all I bought to do the swap.
be very careful that we are all talking about the same thing, the brakes that MrGrey got from me are from a 04 Sport NB, which I am pretty sure are a different unit from the NB 98-02 non sport brake

See link below,

http://forum.miata.net/vb/showthread.php?t=24822

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Post by Snapfrozen » Sun Jul 07, 2013 5:00 pm

I didn't even mention his post in my reply? Was replying to the OP

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Post by MrGrey » Sun Jul 07, 2013 5:00 pm

indeed, Donovan is right, the 98-02 uses a 10" rotor while the 04 sport I have uses an 11"

sure, some may say that the extra inch doesn't count for much, but thats usually what people with little rotors say :wink:

if you know what I mean :wink:

Donovan
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Post by Donovan » Sun Jul 07, 2013 6:54 pm

Snapfrozen wrote:I didn't even mention his post in my reply? Was replying to the OP
Sorry, my mistake, just assumed you were following on from the post an hour before rather than the one 6months ago.

Guess the old saying is right, never assume anything, as end up making an ass out of u and me. :lol:

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Post by Snapfrozen » Sun Jul 07, 2013 9:00 pm

Donovan wrote:
Snapfrozen wrote:I didn't even mention his post in my reply? Was replying to the OP
Sorry, my mistake, just assumed you were following on from the post an hour before rather than the one 6months ago.

Guess the old saying is right, never assume anything, as end up making an ass out of u and me. :lol:
My bad, didn't read the dates :P :lol:

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Post by MrGrey » Sun Jul 07, 2013 10:52 pm

well, technically speaking its my bad for dredging up a 6 month old thread, but I figured the content was similar so I would just use this thread instead of starting a new one.

in retrospect I should have at least made mention it was a thread necro :wink:

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Post by Donovan » Tue Jul 09, 2013 10:35 am

let's all feel the love, everyone is to blame, and we all take responsibility.

Don't ever let it be said that petrolheads are a bunch of uncaring hicks.

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Post by MrGrey » Tue Jul 09, 2013 4:54 pm

he's right..... I'm a hick but I care :)


group hug!
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Post by marcellarius » Tue Sep 10, 2013 6:21 pm

The calipers are NOT identical. Having been burned by this today, I thought I'd set this straight.

The front calipers have a big slider and a small slider. On my 1.8, the small slider is at the top, the big at the bottom. This is reversed on the 1.6 caliper. Not identical.

I suspect if you have a pair, you could swap the left/right brackets and make them work.
Attachments
brake_caliper_comparison.jpg
Comparison of an NA6 and NA8 caliper

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Post by SLYDIT » Tue Sep 10, 2013 7:26 pm

its common knowledge that you have to swap sides when doing the conversion.
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Post by Snapfrozen » Tue Sep 10, 2013 7:29 pm

SLYDIT wrote:its common knowledge that you have to swap sides when doing the conversion.
This. The piston diameter and all hydraulics are the same between them. You will have the same braking power no matter which caliper you use. You need to swap left to right but otherwise only the rotor and the pad retainer change

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Post by marcellarius » Tue Sep 10, 2013 7:31 pm

I recall reading that now, but it doesn't make the calipers identical.

In my situation I couldn't find a replacement NA8 caliper in Hamilton so assuming that they were "identical" I bought an NA6 caliper (the much cheaper option..)

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Post by Snapfrozen » Tue Sep 10, 2013 7:56 pm

Just replied on facebook - assuming that's you. Sorry! :(

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Post by hlau028 » Fri Sep 05, 2014 2:59 pm

On the topic of NA6 and NA8 front brake calipers.

If they are the "same" as stated, does that mean both share the
same brake pads?

Thanks :)

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Post by marcellarius » Fri Sep 05, 2014 3:18 pm

No. The pads are held in place by the caliper bracket. The NA8 bracket holds a larger pad and accommodates a larger diameter brake rotor.

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