Capt Slow Dork
March 8, 2011 5:44 p.m.

This is a stupid question that I probably already know the answer to but I just wanted to check in with the hive mind before I plunked down some cash.

I have a NA miata with a nearly dead top.

I acquired a NB top frame that I intend to retrofit onto the NA. I need to order a new fabric top for the frame. I am planning on ordering a top for an NB since I have an NB frame. Is this correct?

Will the NB rain rail work in an NA?


Type Q HalfDork
March 8, 2011 7:10 p.m.

I think the answer is yes, but we should wait for Keith or someone like to confirm.

If you are putting NB top on the car, we can threaten protest you for update/backdate rules violation if you entered in STS with it.

Keith SuperDork
March 8, 2011 7:16 p.m.

You should, they're lighter!

Yup, use all NB parts on the NB frame. It's a nice upgrade.

unevolved Dork
March 8, 2011 11:38 p.m.

Yep, just did this exact swap a week or two ago. Went from this:

to this:

Glass window FTMFW.

Capt Slow Dork
March 9, 2011 12:11 a.m.

I could see where you would want too. I know my super trick stock suspension and FM sway bar setup proved pretty dominant sunday

That being said if I decided to run it in sts you wouldn't have to wait for me to install my top to protest me. My car has a torsen so it is not sts legal.

Type Q HalfDork
March 9, 2011 10:55 a.m.
Capt Slow wrote: I could see where you would want too. I know my super trick stock suspension and FM sway bar setup proved pretty dominant sunday That being said if I decided to run it in sts you wouldn't have to wait for me to install my top to protest me. My car has a torsen so it is not sts legal.

If you told me about the Torsen, I forgot about it. As for my times at last Sundays autox, that was all me. My driving sucked.

Capt Slow Dork
March 9, 2011 12:33 p.m.
TypeQ said: ...My driving sucked.

Yea everyone has days like that. That course was not an easy one to string together.

I had a really hard time driving the first 3 corners smoothly. Andre figured out that we could wait to shift into second until well after the 2nd corner, but when doing that I would tend to mash on the gas and get loose.

Andre had a hard time with the bumpy offsets through the middle of the course, I felt like I busted those out pretty well. Going up the hill 3 out of four times I think I tracked out too far at the start and ended up in the gravel which made that corner difficult to get anywhere near the apex.

The finish was glorious though I love the way the course ended with the fast slalom into the tight kink just after the timing lights. That was fun.

Another thing that I think benefited us was the insane rate they were cycling cars through the two driver line. We had the Kumo XS's off the MR2 on the Miata and they should have been squirley and lame in the damp cool conditions but after the first two runs they were great!

Capt Slow Dork
July 25, 2011 2:13 p.m.

I have to be the worlds biggest procrastinator. I have finally started working on the top

After drilling out the rivets holding to top to the frame I started looking at them. I have two different sizes of pop rivets at home and neither one of them looks right. Does anyone know what the correct size rivets are?

Woody SuperDork
July 25, 2011 3:22 p.m.
Keith wrote: You should, they're lighter!

An even lighter option is to remove it altogether!


Keith SuperDork
July 25, 2011 3:43 p.m.

Yes, but that tends to be less waterproof

Captain, memory tells me it's a 5mm rivet. Just drill the hole to the one you have that's a bit bigger and you should be fine.

Capt Slow Dork
July 25, 2011 5:32 p.m.

got it! Thanks guys!

ZOO SuperDork
July 26, 2011 12:25 p.m.

Anybody have the part number for the cables that run inside the top? I didn't have any luck finding it.

You'll need to log in to post.

Also on Grassroots Motorsports

MX-5 Cup Racing: Live on Your Screen This Friday and Saturday

1 day ago in News

Catch all the action of the Global MX-5 Cup race at Road America live this weekend.

How to Run Compressed Air at Home

1 day ago in Articles

A guide for installing an air compressor and air tools in your home garage.

2017 Volkswagen Golf SportWagen TSI 4Motion

1 day ago in New Car Reviews

Say hello to the Volkswagen Golf SportWagen TSI S with 4Motion. It comes with a turbocharged 1.8-liter engine that is ...

You Need This: $1600 Street Racer Ford Festiva

2 days ago in News

It already has a GRM sticker and everything.

Get Your Subscription Combo Deals!

2 days ago in News

Get both our magazines for the price of one!

Your Projects: smokindav’s VW GTI Project

2 days ago in News

Love a good MK5 GTI? You might enjoy this build thread.

Wing It: Simple Talk on the Complex Subject of Aerodynamics

2 days ago in Articles

Whether sleek, boxy or somewhere in between, all cars interact with the air while racing down the track.

2018 Acura TLX V6 A-Spec

2 days ago in New Car Reviews

Acura is introducing something new for the 2018 model year: the Acura TLX V6 A-Spec. It's the highest trim level ...

You Need This: 1989 Suzuki Swift GTi

3 days ago in News

For sale: one of Suzuki's under-appreciated hot hatches.

Buyer's Guide: Chevy Cobalt SS

3 days ago in Articles

All the information you'll need on GM’s entry in the sport compact wars.

Wednesday Night GRM Live: Are You Using the Right Chemicals for the Job?

3 days ago in News

What do all these cans even do!?!?

Project SVT Focus Gets Caught Up on Maintenance

3 days ago in Project Cars

Once again, some off-road action sent our project focus under the knife.


Grassroots Motorsports Magazine

Subscribe Today

Also get your instant access to the digital edition of Grassroots Motorsports Magazine!

Learn More