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96 trying to keep it street legal.

 
Old 07-27-2018, 03:44 PM
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Default 96 trying to keep it street legal.

I want to turbo it real bad, currently building the engine for boost. Is getting a stand alone Ecu like a hydra of megasquirt the only real way to go? If so I would have to go back to stock once a year for state inspection. What about the FM voodoo box? Haven't found too much data on it but from what I understand it's maybe good for the power I want to make. About 200hp. Thanks
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Old 07-27-2018, 04:41 PM
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Was gonna suggest historic tags, but wow—upon research, NC requires such vehicles to be 1981 or older!
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Old 07-27-2018, 04:44 PM
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Which sounds better to you? Choose one.

A) One weekend of sadness for 363 days of happiness

B) 364 days of sadness for 1 day of happiness
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Old 07-27-2018, 04:48 PM
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Originally Posted by huesmann View Post
Was gonna suggest historic tags, but wow—upon research, NC requires such vehicles to be 1981 or older!
yeah... kinda a predicament
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Old 07-27-2018, 04:50 PM
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Originally Posted by concealer404 View Post
Which sounds better to you? Choose one.

A) One weekend of sadness for 363 days of happiness

B) 364 days of sadness for 1 day of happiness
Option A sounds good.
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Old 07-27-2018, 04:57 PM
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Smart man. Sounds like you'll make the right decision.

Protip: The right decision never involves Hydra, though.
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Old 07-27-2018, 05:12 PM
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Originally Posted by concealer404 View Post
Smart man. Sounds like you'll make the right decision.

Protip: The right decision never involves Hydra, though.
Okie, thanks for that tip.
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Old 07-27-2018, 05:54 PM
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I used to swap maf and ECU every year...
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Old 07-27-2018, 06:04 PM
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Originally Posted by Stealth97 View Post
I used to swap maf and ECU every year...
so you just make adjustments to not throw codes? What are the steps to make sure it passes?
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Old 07-27-2018, 11:41 PM
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FM sells CARB legal turbo for all miatas.
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Old 07-29-2018, 08:34 PM
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Originally Posted by Kronikmstrb8r View Post
so you just make adjustments to not throw codes? What are the steps to make sure it passes?
leave all factory sensors. Just swap in ECU, set timing and drive. I kept stock injectors to make it simple.
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Old 07-30-2018, 09:02 AM
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Originally Posted by Ted75zcar View Post
FM sells CARB legal turbo for all miatas.
Those use the voodoo box. Which isn't toooooo bad if you soend the time to dial it in. But then you need another thing to adjust timing... And then you are stuck with stock/only slightly larger injectors and... Yeah...

Having worked with both, I would just do megasquirt, then swap injectors abd MAF/AFM on before the turbo and tie the waste gate open for inspection. Or can get some 280cc EV14 injectors or something and a RRFPR to bump fueling (still tuning with MS) if you want to avoid swaping injectors.
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Old 08-01-2018, 10:53 PM
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OP I've got a Voodoo II box I'll sell you for cheap, PM if interested. I used it on my 96 with the FM kit for a couple years when I lived in TN and had to do emissions, and it worked great for what it is. I made 174whp on stock injectors and it was dead reliable. The problem for me came when I decided I needed more power. Don't think I could have gotten to 200 at the wheels on the Voodoo box.
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Old 08-02-2018, 12:09 PM
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Looking up NC regs looks like you have three options:

​​1. Change to stock ECU to do emissions test, can leave turbo in place just open wastegate and drive slowly.

2. Sell the 96 and get a 95 or older Miata which will not have to pass any OBD checks.

3. Come to Colorado and get emissions tested here and then use that certificate in NC. Looks like that is allowed see "out-of-state emissions testing in North Carolina" on the NC DMV webpage. In CO, OBD function is not required to pass.
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Old 08-03-2018, 11:33 AM
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You can also use the Xede on a 1996 and not have to swap parts. Injectors can stay in, but you may need to adjust the tune a little leaner at idle.

That said, most of my customers will swap the MSPNP and injectors to the stock ECU/Injectors/MAF and go pass emissions. Then swap it back.
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