would it be posible to use a miata maf sensor with an s5 ecu? would it work?

 

no, an air flow meter and mass air meter are totally different

 

the s5 rx7 has a hotwire sensor doesn't it?

 

no it uses an air flow meter like i said.

 

when did rx7s switch over to hotwire?

 

never, they went from air flow meter to speed density.

 

oh, ok then, i guess ill just upgrade the afmn then... and 86 afm is plug and play right?

 

The AFM isn't much of an issue. The slow, nasty, non-programmable ECU is your main problem. Your best bet for an upgrade is to use a good modern speed-density standalone EMS that will work well on an NA rotary engine. The Wolf3D works very well with its stock MAP sensor, and the Haltech computers would be good with the 1 Bar MAP sensor option. This will let you throw the AFM in the garbage, and with proper tuning you will have more power, better throttle response, and better gas mileage.

 

how much is the wolf 3d? where can i get one?

 

In the US they sell for a little over $1,400 USD for the full setup. I'm not sure about dealers and pricing in Canada. Here is a link to the Wolf website:
http://www.wolfems.com.au/home

If you want something less expensive, a used Haltech E6K with a 1 Bar MAP sensor would work just fine.

With any standalone EMS, plan on spending about $500 USD on professional tuning. If you can buy an EMS from an authorized dealer who will give you a package deal that includes installation and tuning, this is even better. EMS installation is similar to installing an advanced stereo system, but tuning is extremely difficult, if not impossible, for the average person. Once the EMS is tuned, most people with a little background in internal combustion engines can make fine adjustments on their own.

 

im not ready for standalone yet i dont think...1400 is out of my budget for now.