Need Help To Find/Make Base Map For 1994 1.8 Roadster - Miata Turbo Forum - Boost cars, acquire cats.

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Old 07-21-2011, 05:16 PM   #1
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Default Need Help To Find/Make Base Map For 1994 1.8 Roadster

After much searching over the last few weeks on the differences in wiring an EManage Blue harness to a 1994 1.8L NA8C Eunos Roadster's harness, tonight I finally wired it into the car.

I have set the switch settings to 3A0 (which is ment to work), but this is for a NB8C with a BP-ZE engine.

The bonnet sticker says the NA8C Roadsters engine is a CE04D16.


The thing I don't know is any difference in the two cars engines, therefore if the injector or ignition map is going to be way out?


I am planning to check the EManage Blue is working NA (Natrually Aspirated) first, then install the secondhand 315cc 3SGE Pink injectors I have and do a quick tune. If all is ok I then have a secondhand Sebring (pre-JRSC) Supercharger kit to install (sorry no turbo as I have never had a supercharger, time will tell if it goes turbo in the end).

Unfortunately I have not been able to find a NA base map to start with (or one for the boosted setup), any ideas please.
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Old 07-22-2011, 07:25 PM   #2
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I might be over thinking this one.

All I really need to do is make sure the ignition map is zeroed and go for a drive with my det cans on I guess.


It would be good to see an Eaton supercharger map though as I have only mapped turbos before and don't know what to expect the rate of increase in boost to look like.
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Old 07-22-2011, 07:39 PM   #3
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The piggyback just allows you to increase or decrease timing/fuel from the stock map. If everything is at 0 then you should be running entirely off your stock ecu. As long as you've got the base timing set right you should be good to go.
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Old 07-22-2011, 07:52 PM   #4
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Thanks pdexta, I was thinking that should be the case.

I'm still not sure if the EMB just works from the cars NA8C ECU map or if when I set the EMB up for a NB8C as I need to due to the Hotwire AFM, the EMB uses a NB8C map loaded onto the EMB? This therefore even with zeroed values would be wrong for a NA8C engine.
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