Basically Mazdaspeed7 mods. But I have a S-AFC and am leaning out a big. All the manifold Porting has been done. Thnx.

89GXL

 

Because you have it leaned out some, youll need to run higher octane or run less advance than you could without the S-afc. I would advance it a few degrees, to maybe 23-25 total advance, and see how your car does. If you feel a loss of power in the low to mid range RPM's, and/or hear a faint crackling sound(kinda like popcorn popping) back the timing off a little, or put higher octane in.

 

Man, adjusting ignition maps and leading/trailing split is an art that very few people know.

For my TII, as an example:

In the high load areas in the meat of my powerband I havet the timing around 20. In the higher rpm at low loads its up 34.

Anyways, what I'm trying to say is that with a TII, you can advance it pretty far...

 

At high rpms Im sure thiers lots of load when your flooring it

 

whats S-afc?

 

Apex'i Super Air Fuel Controller. It modifies the AFM signal to increase or decrease the injector pulsewidth. The rx7 store sells it if you want to check it out more.

Evilrotor, calm yourself He's talking about advancing the base timing on the stock ECU by turning the CAS.

 

AIR FLOW CONVERTER!!!!

 

oops.....i was pretty close though...