So the more i read the more i go back and forth. everyone says the supermiata one it the damper to have but since its no longer available is it worth getting the bhj or just stick with the tried and true ati? Also do i want a 36-2 trigger wheel? its a 1990 chassis with a 95 block and a 02 VVT head? and as far as sequential fuel is it worth all the effort or just run batch fire?

Get the ati and 36-2. Why not?

Isn't the bhj one more expensive?

Seq is just 2 extra wires on 1.6 cars. Everything else should already be wired for it.

With your 90 chassis you will need to run a couple extra wires for it.

BHJ Dynamics harmonic dampers MAZDA - MiataRoadster - High-performance service...and parts for Mazda Miata Roadsters

Hopefully the link works this time.

the ati is 530 shipped with a 36-2
The bhj damper is 516 with 36-2 supermiata trigger wheel

ATI is tried and true - I'd go with that one. I wasn't aware the Supermiata one was no longer available - what happened there?

The supermiata one had quality control issues from bhj. And emilio was sending too many back to bhj because his quality control was catching issues. But the ones that were shipped from 949 are supposed to be the sweet ones to have.

Why would you want to buy a bhj unit if they had qc issues. I'd presume that they're not up to par outside of the shipped units otherwise they'd be selling them now, right?

If I am ordered to go back to PSNS for another week late Novermber, I can lend a hand with assembly or wiring.

That would be much appreciated! Machine shop should be done with the block but still waiting on them to balance the rotating assembly. Then hopefully catch some black Friday deals on all my head parts

As stated a few times in this forum, we did not ship any bad dampers to the best of our knowledge. We returned a bunch to BHJ for rework or scrap though. The percentage of dampers that failed our QC here was appalling. New issues popping up every other production batch, the old issues resurfacing. Besides the regular delays in getting adequate stock, I was paranoid that we would miss something and have a bunch of bad dampers bolted to expensive engines in the field. So we discontinued the damper altogether. If any BHJ Miata dampers show from another vendor, caveat emptor. And no, we can't coach you on our QC checklist ;)

Thanks for this response Emilio, however, I was referring to dampers that were currently being sold (i.e. by other vendors) after you pulled them for QC issues.

I have heard of no issues with the ATI damper. It's just kinda expensive. On the flipside, it is rebuildable which ours wasn't.

I see another vendor has picked up every variant of BHJ damper we dropped. Judging by the prices, they are not actually stocking them in quantity.

Ugh. Again. I'm trying hard to make sense, but this lack of sleep thing isn't helping.

I was referring to the other variants of the BHJ damper that you dropped. I hope that clears it up. Sorry for the convoluted conversation.

If you are asking a question to me please just state it clear and unambiguous with all pertinent details and context.

Regarding any BHJ dampers, regardless of where they come from, what versiln or what engine they are designed for; caveat emptor. I have seen enough to understand that they have clear problems with process control, actually it was clear with several issues that they have no process control.

I'm not asking a question, I was merely responding to the OP who seemed to be considering a BHJ damper currently being sold by another vendor vs. the ATI. My point was that the models that you sold were good, but you pulled them due to qc issues. If the on the market BHJ dampers met your standards, then you'd be selling them. I was basically issuing a 'caveat emptor' re: the BHJ dampers currently on the market.

To clear things up. I'm currently in possession of a supermiata damper. I have no doubt that it is totally fine because you have said multiple times that anything that shipped met your qc process.

So tldr:

1) If op is considering a new BHJ damper sold by another vendor, I'd reconsider
2) There were no issues with 949 dampers that were sold because they passed in house qc. There are multiple places where this has been addressed on this forum and elsewhere.

I hope that clears things up. I can communicate slightly better with sleep. It's quite remarkable.

Note: Mod can delete my posts if they're cluttering up the thread here and causing some confusion.

Talked with the machine shop today and crank is no good. Does anyone have a crank I can buy and ship early next week

@Shibby

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When i drop off the new to me crank to the shop do they need a damper to balance the rotating assembly too. from the recent engine balancing thread it seems that they only need rods pistons and crank and wont need my clutch, flywheel, and damper. Am i on the right track or a swing and a miss (still in food coma so forgive me if im making a dumb right now)

Call your shop and ask. They will have the best answer.

The shop wants everything but they send it to another shop to have balanced. Also would like to twin disk next summer and then bmw the summer after so clutch and flywheel will change a bit until final configuration

Added a volvo 850 Fan on a custom shroud that is fully sealed to the core. For those who dont know the volvo electric fans run 2500cfm on low and 3500-4000cfm on high.

And still have room for a 25 row setrab oil cooler

https://cimg2.ibsrv.net/gimg/www.mia...cec4b41a92.jpg
https://cimg3.ibsrv.net/gimg/www.mia...9bef909aa5.jpg