Leafy

iTrader: (1)

Wait we cant compare products of vendors with non-vendors? We better close that thread about the keisler LCAs.

Which connectors? The ones for the COPs? The ones that mate to the harness are a piece of cake to get new.

Erat

iTrader: (5)

The connector that mates to the stock harness making it a P&P setup.

Also, the other problem is that the connector is insulated. Requiring a special expensive tool to pin / depin it. *So i'm told.

To be honest, i don't know the logistics of his business. I'm leaving that completely up to him.

18psi

iTrader: (76)

You can't compare because you don't have all the info, you're just guessing, and he can't come here and post up because that'd be advertising or something.

I don't care.

I'm actually kinda hoping for an in depth comparison, but doubt it will happen any time soon.

But yeah, Bryan is doing this full time now and I'm kinda surprised he's not become a vendor already. I'm guessing (and HOPING) that its because he wants to really prepare everything and have a legit company ready to ship orders this time around so the huge delays and lack of communication doesn't happen like with the intercoolers.

Leafy

iTrader: (1)

At least for the 94-95.5 setup its no big deal. I've already made a pnp toyota setup for those years, takes about an hour to make the harness with the more labor intensive but significantly cheaper tool. I really should figure out where I threw that setup and sell it.

Erat

iTrader: (5)

Well, what's the tool?

Ben

iTrader: (33)

I had never heard of the FAB9 coil before, so I looked it up. It appears to be motorcycle CDI pencil cops (Honda CBR I think) with an ordinary 4-channel Bosch inductive igniter. It is probably a decent solution, but I doubt it will match a coil near plug.

The fact of the matter is that no coil on plug coil is particularly hot. The beefiest coils are too large to be packaged as a coil on plug and are instead packaged as coil near plug. They're also inductive. A cheap but good coil near plug example is GM LSx style coils. I have 6th gen 6.0 truck coils on my turbo Miata. More spendy, but the IGN-1A is even hotter, used in the highest boost applications.

The benefit of CDI is short dwell time, useful on a 15k RPM sport bike, but not really something we need to worry about on a 7k rpm Mazda B-series. The tradeoff is very short spark duration. Inductive can have a much longer spark duration, making it more likely to ignite the fuel/air mixture. I'll take inductive all day long.

hector

Ben, the cbr coils are not cdi. Well at least not the ones I'm using.

I'm running them from the igniters you sell for the diypnp without a cdi box. So they can be run inductive.

I did put an AEM cdi box on but it would overheat and shut off at highway cruising speeds. Like a dumd *** I haven't sent the box in for repair but even if it were fixed I don't see a reason to use it now for a NA application.

JasonC SBB

CBR coils require a very short dwell.

hector

Yes 2.5 ms at ~12v. Most aftermarket ecu can handle that.

And apparently using the bosch module that fab9 uses makes it a moot point?

Ben

iTrader: (33)

There is a car here with the same solution: CBR coils and our QuadSpark 4-channel igniter, triggered off MS3-Pro.

Some CDI coils can be used with an inductive igniter, some can not. Our IGN-1 coil can be used with either an inductive or CDI igniter.

I thought the CBR coils were CDI from Honda, but I could be wrong. I don't have easy access to bike wiring diagrams.

kman456

What about AEM pencil COPs?

hector

I got the coils from a friend that works for a honda dealer so maybe he can get me a wiring diagram.

The AEM coils are propriotery copies of the honda coils. They have them made to their specs but the only thing different i could find researching it was the primary resistance at 0.9ohms as opposed to the honda coils at 1.5ohms. Also the AEM coils dont need sparkplugs with removable tips. That and the AEM coils are more expensive.

After some more reading I stumbled across an old thread on some honda forum that went into a discussion about the coils. Concensus was that they are indeed induxrive but work extremely well as a cdi coil for reasons I can't recall right now.

raybrant

Slightly necropost and asking a possibly dumb question but...

What's the benefit from going from the OEM Miata coil and plugs to a COP design? Is it just longevity/reliability of the COP?

18psi

iTrader: (76)

better spark

ScottyP3821

iTrader: (2)

Also cheaper to replace and did I mention cheaper to replace. I got 4 Denso COPS for 40 bucks and if you go to the salvage yards they are really easy to swipe.

LukeG

I searched all your posts and couldn't find anything more on this. Also, no luck in google for dsm miata coils. I'm assuming you have done this. Please give more details.

borka

iTrader: (1)

way to bump a 3 year old thread. if you dont know he was being sarcastic.

best of the best is GM LSx coils, search google for Miata GM coils. not plug and play, but best spark, and what all the MT.net cool kids run.