I have a 93 Miata that I will eventually be turboing. In the meantime, I am going to convert it over to run on a standalone system and get all the bugs out first. The standalone I will be using will be similar to a PROEFI
In any case, I am researching options for crank trigger wheels. I have done some searching, and have found the few people on MT that have made their own adapters. Looks like some have adapted EDIS wheels, while others have taken a mill to the stock 96 and up crank trigger wheel and cut their own teeth, and still others have used a DIYAUTOTUNE wheel with a custom machined adapter.
Here is my criteria:
- At least 12 teeth although more is desirable. 36-1 would be best. The ECU has a limited list of possible teeth patterns that will work.
- Able to fit on the crank nose somewhere - using some sort of adaptor maybe?
- Does not require machining - as I don't have a mill or lathe at my disposal.
- Can be Welded on, but I'm worried about lateral runout and my ability to minimize it.
-I will weld up some sort of custom bracket for the speed sensor (will probably be a hall effect sensor).
So far, based on my criteria, I have narrowed it down to:
The trackspeed engineering 12 tooth crank wheel.
So, I have a few questions:
-Am I missing anything cheaper and/or easier than this? Also, would prefer more teeth.
-Does anyone sell an off the shelf adaptor to use a DIYAUTOTUNE wheel with a miata?
-Will the trackspeed wheel work with a stock 93 crank pulley? If not, and I have to use a 96 crank pulley, what do I do about the v belt versus multirib? I don't have power steering or AC, so just the water pump and alternator to worry about.
Any help / advice would be appreciated.