Just replied to your email. Yup, they're the same fitment

Ok. I do not want to risk missing one of these. Maybe I should get my brother to cover the order. Thanks

How would one get this to play nice with an NA speedo?

Use a VSS from an NB and a programmable speedo converter box.

--Ian

I've received a few PM's from people asking if we still have these available. As of this moment, we still have 2 sets left in stock

4.1 speedo sender and a scaled speedometer face from Revlimiter

If you run out of stock in the next week, how long until it will be available again? Waiting on a new 0% Apr card to arrive this week 😀

The current batch is a limited run, and we still have 2 sets left from over the past few weeks, so whether we make another batch or not will depend on the interest. If we do, it will probably be in pre-order format as I don't want to be sitting on 20+ sets of final drives and not knowing if/when they will sell.

One left.

Chrome kept kicking back security warnings, so I had to use Edge, but I think that was related more to PayPal than to your website.

The only SSL part of our website is when you go to PayPal, so yeah, something must be up with their certificate...

We are now completely out of the final drives. I want to thank everyone here for their support :)

Depending on interest, I "may" start a pre-order for a new batch, but not 100% confirmed yet, as we have other projects that I need to put up on this forum for you guys later this month (i.e our mid-range coilovers, our carbon propshafts etc)

Put a pre-order together before I buy a 3.63 R&P!

Official Pre-Order now posted up: https://www.miataturbo.net/group-buy...4/#post1499358

I linked the GB post to some friends, they are asking what conditions the test vehicles were in (power figures, testing time) if you have that information.

For this, you would need to check with Emilio/949 Racing as it was tested in their own car

MF 3.3 R&P Test Conditions
 

3.3 test conditions. I believe we are the only folks who have actually track tested this R&P. That it was on what is probably the fastest track Miata ever built should cover the "test conditions" validation.
400whp, sequential trans, Hoosier A7's, 1500lbs downforce, wheel to wheel racing.

MF 3.3 R&P is noisy. Noise = heat. Fine for track, too noisy for street if NVH matters to you. Don't ask me "how noisy?" R&P should not be audible. If I can hear it, it's too noisy.
Run a diff cooler if you plan to run this R&P at high power for sustained periods. Don't whine about blowing up your diff if you track over 350whp without a diff cooler. Also suggest dropping fluid after brief break in and 1-2 full heat cycles. Does not require special fluid, just whatever GL5 equivalent you choose for the diff.

We paid for ours and are not a dealer.

Thanks for clarifying, I expected as much myself but they asked me to check.

Small correction: Not really. There's more noise because of the way the gears are cut, it's not going to add heat though.

But as you stated, if you're seeing high heat in the diff, you should be running a cooler either way.

Would these gears benefit from micropolishing? I have a shop that can do it, but is it worth the extra few benjamins

Was surprised to o have received my gear set today! Was expecting them to show up in a few weeks at best! Sending them out for micropolishing and assembly. Will update in a few weeks
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