It used to be frequent to use the NA8 brake system in NA6 cars. It was possible when one obtained NA8 used parts.
However, it is not that easy to get those parts.
Together with Maruha’s original strengthened pad we set up an NA8C rotor conversion kit.
For further information on the price of the set parts check out this page.
To the conversion we basically need these things:
If one has these four items a conversion without processing is possible.
The problem is the metal fitting item.
This item cannot be bought from Mazda as a separate item.
Furthermore, if one needs only this item, one has to purchase the Mazda genuine pad. This is useless spending of money.
That’s the reason, why we prepared the following:
The metal fitting that is over and under the caliper support can be used for NA6 and NA8 too.
However, the back plate’s shape that is on the back side of the pad is different in the case of NA6 and NA8, that’s why it cannot be reused.
The pad’s back plate has a thermal insulation effect and makes it difficult for the frictional heat to get from the pad to the caliper piston. Furthermore, through the grease it suppresses the noise coming from the pad. We recommend the usage of the metal fitting for the front.
The rear’s fitting’s shape is totally different in the cases of NA6 and NA8 and so it cannot be diverted.
We at Maruha prepared the metal fitting as a separate item, so you don’t waste your money.
The rotor’s diameter is different in the case of NA6CE and NA8C.
| NA6CE | F 235mm | R 230mm |
| NA8C | F 255mm | R 250mm |
As you can see, the NA8 rotor’s diameter is bigger.
This difference changes the efficiency.
When we talk about the rear, we have to note that the back plate at the rotor’s back needs to be undercut.
We recommend to make small cuts on the plate and widen it this way.
As for the front, if we bend the back plate to the inside, we can process it quite easily.
The genuine caliper pistons in NA6 and NA8 are completely the same.
In other words, if you reuse the caliper, the brake system will have the same effectivity as in the case of NA8C.
The target is NA6CE, so even the brake line and the caliper itself need an O/H. As we are already doing conversion, we could freshen up everything.
Maruha’s set includes all necessary parts and it is very convenient and reasonable.
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