matter of fact, yeah.. I am really freakin tired

 

Actually the S-AFC can affect low throttle driving and idle. It has 2 settings, low throttle and high throttle. Your "window" of low or high throttle is also controllable. My high throttle is set at 80% throttle or more. Anything under 80% and it is in "low throttle mode", I guess if you want to call it that.

The injector clips for the 720cc denso injectors are available at Autozone...$3.99 for 1 clip.

The resistors are available at Radio Shack...$1.79 for a package of 2.

The guys at rx7.com are great guys, and have some great parts and service, I just don't see it resonable to buy a $10 resistor or $12-$15 injector clip.

 

well when i go BNR Stage II, ill pick up some 680's for the primary and some 890's for the secondary... but right when i get rtek ill just run it with 720's in the secondary. thanks for all your input guys!

 

making relieable power isnt as simple as running the "correct" AFR...

 

Sounds like you didn't read the manual...

The two maps "lo-throttle" and "hi-throttle" both have seperate adjustable throttle opening set-points. Below the lo-throttle set-point (say 50%) the lo-throttle map is used, above the hi-throttle set-point (80% in your case) the hi-throttle map is used, and in between the set-points the unit interpolates between the two curves.

 

The Rtek is superior to an AFC in terms of timing - the false signal the AFC provides the ECU DOES effect timing.

An Rtek 1.7 + an AFC is actually a decent combo for fine tuning your car - since the ECU is already set to run 720 sec's smoothly, the AFC allows you to fine tune this base "map" to your specific car with small changes.

I have an Rtek 1.7 in my car and right outta the box it runs really well with my mods. It's a bit rich, even with 13-14 psi...

With the Rtek 2.0 on the horizon, I'm wondering why anyone would buy an AFC for our cars anymore


Don't get me wrong, the AFC is an AWESOME tool, but you want to be making small changes incrementally. Most people I come across with AFC's do not really know what they're doing...there are some key points to remember with the AFC.

First of all, any one change made at ANY individual rpm point WILL effect the entire curve! In addition, your lo throttle changes DO effect the hi throttle settings, and vice versa. This is a key issue many people have trouble with and alter too many throttle points, with massive changes , too often. It is very easy to get the car to run pretty well and still be WAY WAY out of tune.

The key is to have access to a wideband or some form of data-logging and make small changes (no larger than 2% at a time).

 

i'm sure he probably knew that just didn't say that it is a linear curve between the 2 hi and lo setting points, the point is idle mixture can be controlled with the SAFC.

 

Thanks for clearing that up NZ. I have this sudden urge to re-read my manual. ;-)

So in the event that I have my low-throttle set point set to 80% and I have my high throttle set point set to 80%, my "maps" never interpolate between the two curves?

 

Correct. If you did that, and had different corrections for the same rpm in the hi and low maps, you'd get a stumble as the mixture changed suddenly. So don't do that.