And the problem was found...

[scttydb411]

miro, what you're saying is true when dealing w/ non factory turbo'd cars and/or cars w/ much larger inj and using large correction factors through the afc.

factory turbo'd and moderate correction numbers don't have the same catastrophic results as a honda running 450cc inj w/ an afc. that can also be done successfully if base timing is retarded and a msd btm is used, but then the same or more $$ has been spent and still not as tuneable as a socketed/chipped/tuneable ecu.

but none of this really applies since we're talking about a supra anyway.

[Jaimecbr900]

miro, what you're saying is true when dealing w/ non factory turbo'd cars and/or cars w/ much larger inj and using large correction factors through the afc.

My car is certainly not factory FI. As a matter of fact they don't make my car factory FI even in Japan.

The catch with an SAFC is mainly two fold: The correction factors are not as finite and numerous as say a MAP ECU or obviously a standalone ECU. Also, as has been said, you can't control any type of timing at all. Although, most modern cars you can't control timing except thru the ECU anyway and even then not every ECU can be chipped or reprogrammed just like that.

If I could do it reliably, I'd love to run a simple Hondata, burn a chip, and call it a day. I can't. I can run an AEM possibly, but then that would possibly ruin my daily driveability and that's just not an option for me on this car since it is a DD.

You Honda guys have it pretty easy. Get a Hondata, burn a chip, and you can do quite a bit with FI. It's not mega bucks to do that, and lots of "tuners" are good at it. That's sweet that you guys have that option. Some of us are stuck at the extremes: Low boost w/SAFC or REAL boost w/standalone. It sucks but that's life.

BTW, I have a good buddy of mine that has a very similar setup to mine on the same type of car, except he has a built motor and running a lot more boost than I. He only uses an SAFC and has done well over 500whp. So it CAN be done, but I must admit he's pushing the limits of that SAFC pretty good.

[scttydb411]

My car is certainly not factory FI. As a matter of fact they don't make my car factory FI even in Japan.

The catch with an SAFC is mainly two fold: The correction factors are not as finite and numerous as say a MAP ECU or obviously a standalone ECU. Also, as has been said, you can't control any type of timing at all. Although, most modern cars you can't control timing except thru the ECU anyway and even then not every ECU can be chipped or reprogrammed just like that.

If I could do it reliably, I'd love to run a simple Hondata, burn a chip, and call it a day. I can't. I can run an AEM possibly, but then that would possibly ruin my daily driveability and that's just not an option for me on this car since it is a DD.

You Honda guys have it pretty easy. Get a Hondata, burn a chip, and you can do quite a bit with FI. It's not mega bucks to do that, and lots of "tuners" are good at it. That's sweet that you guys have that option. Some of us are stuck at the extremes: Low boost w/SAFC or REAL boost w/standalone. It sucks but that's life.

BTW, I have a good buddy of mine that has a very similar setup to mine on the same type of car, except he has a built motor and running a lot more boost than I. He only uses an SAFC and has done well over 500whp. So it CAN be done, but I must admit he's pushing the limits of that SAFC pretty good.

i'm not saying afc can't be used...i successfully used the hack at 12psi+ on my honda for a year w/ no issues. the trick to getting around the timing issue crap is to retard base timing some and then for extra added safety, use an msd btm to retard timing under boost. the bad thing is after you've spent the $$ for afc, btm, and installation you've spent more $$ than you could've on a socketed chipped ecu (this is for us lucky honda owners). unfortuneately the same doesn't hold true for the other folks.