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-   -   NA Front Brake Upgrades? (https://www.miataturbo.net/wtb-7/na-front-brake-upgrades-111085/)

JohnnyOTS Jan 26, 2026 04:22 PM

NA Front Brake Upgrades?
 
Anyone got any bits to upgrade the front brakes on an NA Miata? Bigger rotors? Bigger/better calipers? I'm good on braided lines and I've got a spare pair of sport rear calipers with brackets, but I can't even consider rear brake upgrades without getting something better on the front.

No this isn't for my white NA track car...
https://cimg4.ibsrv.net/gimg/www.mia...71088cf8fc.jpg
>.<


Fireindc Jan 26, 2026 08:53 PM

That car looks sweet! What are your plans with it? Typically N/A cars get away with stock 1.8 brakes and some mean pads. If you are interested I'd sell you some front 1.8 NB sport brakes though, I ran them on my turbo car for a season before upgrading.

JohnnyOTS Jan 27, 2026 11:58 AM


Originally Posted by Fireindc (Post 1674049)
That car looks sweet! What are your plans with it? Typically N/A cars get away with stock 1.8 brakes and some mean pads. If you are interested I'd sell you some front 1.8 NB sport brakes though, I ran them on my turbo car for a season before upgrading.

Fire, that would Rock! I'll PM you.
I guess I'll need to start up another build thread, but here's how it happened:
1) I've been rather unhappily watching my white track car become increasingly unusable on the street as it moves more towards full racecar. It's definitely the right thing to do for track use, but I was losing the ability to just putz around locally when the weather is nice which is sooo much fun in the Miata. With a full cage going in I really shouldn't drive it at all without a helmet. :cry:
2) I've been amassing this pile of perfectly good NA parts as they come off of the white miata. I don't like seeing them just sit in storage, but they don't have a place on a track car.
3) You are very aware I've been looking for parts to build out a BP4W engine to go with that screamer head I bought from sixshooter, since I keep hitting you up for advice. (Thank you for that by the way!!)

So I've been trolling the local online resources looking for a reasonably priced engine when I came across the ad for this car - a red 1990 Miata, owned by a guy who used to autocross, who had swapped in...wait for it...
a BP4W engine. The car had been parked for 5 years. He had to move in the next three weeks and was doing a fire sale on the car. I called my Boss, took a half day, hooked up the trailer, went to the bank, and bought the car the same day. I couldn't have asked for a more perfect fit.

The plan is to make this the street car first and foremost, and probably do some autocross with it as well. It's got what appear to be the stock 1.6 brakes currently; the whole brake system is in terrible shape and I'm a huge fan of good brakes anyway so upgrading to sport brakes seems like the perfect solution, especially with the plans for the future. The AC is long gone so it's not going to see much use in the worst part of summer, but for the rest of the year, yeah baby!
Future plans are to swap the 1.6 into the red miata, build up a turbo-ready BP4W with the engine out of the red miata, drop that in the white miata and then it's zoom zoom on the track and in town.


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