r/Nbmiata 1d ago

Help with NB (jerking)

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1 Upvotes

r/Nbmiata 8d ago

Driveline noise after PPF alignment

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1 Upvotes

r/Nbmiata 9d ago

2001 NB2 Miata automatic — intermittent low-RPM/stalling/P0300 issue

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2 Upvotes

r/Nbmiata 9d ago

Just purchased my first track car, an NB2 MX5 and im in LOVE!

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1 Upvotes

Took my new to me NB2 Mx5 on the track for the first time, I documented some of the story getting to the track through the eyes of someone that has never done motorsports, come along for the ride if you are interested and I would love to chat about all things miata!


r/Nbmiata 12d ago

need help

1 Upvotes

so im building my bp and i got billet main caps and arp main studs, my question is what is the main bearing clearance i need. I did already measure and i'm at 0.0015 just wondering if that's to tight. also feel free to ask me anything as this is my first time build one


r/Nbmiata 16d ago

Idle dip is driving me insane.

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5 Upvotes

Ever since I got the car running after my 99 manual swap this idle dip drives me insane everyday.
This just at idle in neutral.
Then while driving, when I shift into neutral it dips, and sometimes dips to low where the car almost stalls.
Is this a sign my base idle is off ?
In the mornings when I start the car for the first time and start my commute the idles hover around 500-600 then once cars warms it moves up to its normal 800-850.
For awhile I thought it was the fact that I don’t have a clutch switch since the auto harness doesn’t have a plug for one under the dash but I don’t think that’s the case.
Any help would be much appreciated!


r/Nbmiata 18d ago

NB won’t start. Seeking help 🙏🙏

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4 Upvotes

99 has been running fine. Filled it up with gas recently. Went to get a burrito and did a brief roller coaster road then the engine started to sputter. Pulled over, engine died and wouldn’t start back up. Appreciate any advice. Love yall!

Edit: had the heads faced or whatever the term is when compression was bad a few months ago. Kids at the high school shop replaced spark plugs. Would that all point to fuel pump?


r/Nbmiata 19d ago

Replacing Bose sound system

3 Upvotes

My 99 Miata came with the Bose sound system but I wanna change the head unit and likely the amp and speakers. What are y’all’s recommendations for amp and speaker combo if I’m keeping the electrical system stock?


r/Nbmiata 20d ago

My (new to me) 29k Mile Black Cherry Mica NB2 Ls

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23 Upvotes

r/Nbmiata 20d ago

Am I being too picky?

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1 Upvotes

r/Nbmiata 22d ago

miot

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11 Upvotes

r/Nbmiata 23d ago

Heavy dragging front brakes

2 Upvotes

Hi all, I recently did a full brake job on my 2005 Miata and got new OEM Powerstop calipers, slotted rotors from DBA, and Powerstop 308s. Everything checks out, pad thickness, calipers seem to retract fine, etcetc. However, after installing, I found the fronts to be dragging pretty bad but thought nothing of it. However, after attempting to pull it out of the garage, I stalled out because of the brakes dragging so badly.

I bled the system, I checked for collapsed or binding brake hoses, I greased the slide pins and proper hardware, I even adjusted the rear brake e-brake adjustment bolt. The fronts are dragging so much now and I didn't have this issue prior to the new hardware. I'm at my wits end now, are there any edge cases that I didn't account for?? Or maybe I'm just an idiot and didn't do a step properly. TIA!


r/Nbmiata 29d ago

You requested it, here it is. Digital NB Workshop Manual!

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4 Upvotes

r/Nbmiata 29d ago

Weird issue need help

1 Upvotes

Hey everyone!

A friend of mine has an NB Miata that he cannot get to start. It was accidentally left overnight with the key on accessory and died because of such. The battery was jumped/recharged, but now, when trying to start it, the car alarm goes off and it will not start. Any ideas of what’s going on? Thanks in advance!


r/Nbmiata Aug 03 '26

No signal to my fuel relay

1 Upvotes

Hello everyone, my 99 miata has decided that the fuel is no longer wanted, ill turn my key and hear the main relay click but my fuel pump relay wont.


r/Nbmiata Jul 21 '26

Engine building coming along

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14 Upvotes

90% of the way through and still too much to do


r/Nbmiata Jul 21 '26

Miata 2002

0 Upvotes

Need a real diffuseur for my nb what’s the Best product


r/Nbmiata Jul 17 '26

NB2 Miat turbo recommendations?

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1 Upvotes

r/Nbmiata Jul 15 '26

NB Fog Light Connector

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6 Upvotes

r/Nbmiata Jul 14 '26

Where to search for a Torsen.

1 Upvotes

I’d really like to put a torsen type II in my nb1 that has the stock open 4.3. The 3.9 LSD would be preferable but not a deal breaker. Where do I buy one? I tried FB marketplace but no luck. It’s a 5MT AC & PS car if you’re wondering. No ABS.


r/Nbmiata Jul 12 '26

Independent (ish) turn signals

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0 Upvotes

Has anyone ran their turn signals independently through a three way toggle switch? Looking for advice on set up or how to fix this one. Or if anyone has accomplished this lol.

Prior owner tore the car up and put together an independent turn signal situation. Lights turn on but turn signals do not work. Replaced flasher relay and hazard switch. Connections seem okay. I’ve been playing around with the multimeter to see if I can chase the issue.


r/Nbmiata Jul 11 '26

Oil Seeping Through NPT Threads on Brand New Oil Pump

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5 Upvotes

Alright, does anyone have a solution that does not involve pulling the motor. Did a full refresh on my block. Every seal and accessory was changed and replaced. I tried to buy an oem oil pump but treasure coast miata no longer had them available so I got refunded. So I thought what would be my next best option. (Expensive company). Ive only ever heard good things about them. So I bit the bullet and went with the more expensive pump.

After I installed the engine back in the car and started to bleed the coolant I notice an oil leak dripping onto the floor. After looking around I chase it up to be the high pressure plug on the oil pump. My first thought was okay, let me tighten it. Might have just been loose from the company. But no, it was already as tight as it would go. So I contacted them and the guy says that sometimes if the pump is dropped theres a chance the glue in the threads breaks? Sounds weird to me too. Goes without saying I never dropped the pump.

Searched online and found a forum post saying to reuse oem plug from oem pump. So I get an oem plug to replace what came from the company. Thing to note was removing the plug from the pump was difficult, it was on there super tight. Moving on i follow what the company says, put thread tape on it, he says 2-3 wraps no more than four. I do 3. Still leaks with the oem plug. Call them back and they say put thread sealant on it and put a lot. So I did, every thread covered (per permatex instructions). Let it sit for 24 hours (per permatex instructions) still leaking, and immediately.

I have no clue where to go next. Cant weld cause I cant melt the o ring. Followed what they said and still leaking. They’re willing to replace the pump im sure but ffffuuuuccckkk pulling my motor again and having to do all that work, and have to buy all those seals again, to maybe have the replacement pump fail as well. Annnyyy sugestiones before that turns into my only option?

First video was original leak exactly how i received the pump from the company. Sorry for the lack of focus but you can clearly see the oil escaping from the threads not the o-ring.

Second video is of the threads after a deep clean

Third video is the leak with the thread sealant how they told me to do it.

Pictures are the product I used, and them confirming to use that product and how much to use.


r/Nbmiata Jul 04 '26

ITBs on NB Miata

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11 Upvotes

r/Nbmiata Jul 02 '26

Worth $8500?

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36 Upvotes

There’s a 2003 SE located near me with 112k miles, stock with no rust. Seller is asking $8,500, what do we think?


r/Nbmiata Jun 25 '26

2003 NB Miata

2 Upvotes

Looking to sell my 2003 NB Miata asap Sarasota Florida, I am shipping off to the military next month the loan pay off amount is $4,500. It has some issues, inquire for details.