That's great if the change in fuel and/or timimg requirements is linear. I just thought I'd put in my 2 cents for an option if it is not linear. I'll defer to the group that's doing the research on this. just throwing out ideas.

 

Jamie, this is "the" holy grail. ultimate meths interactive MAP with great safety in built naturally.

The three chart is exactly what I was hoping for.

 

It would definitely be linear between the high and low set points IMO. Please, keep throwing ideas out, this hasn't come this far by just one individuals ideas, its a community effort for sure.

I'm glad I understood what you were looking for, now only if this is what Tephra has in mind...or if he can even make this work.

 

Are you kidding about the 94170008 or would you use the 94170015 (P300 Fix)? I would hate to miss out on all of the fun

 

Good point. If ratio of fuel flow and meth flow is kept constant, we can work on the stoichiometric ratio of the two fuels. Ignition can almost be differ by a few degrees.

Linearity is something one has to try by practical means but my guess it will not be that far off being linear. It is very new but also exciting.

 

The 94170014 is the P0300 fix for the 0008, which he definitely will be doing.

 

whats 15 for over 14?

anyway I think I will use the "load threshold" for ADC0F switching as well; ie you can't swap to ALTMAP's using ADC0F if the load is over a certain point.

This will stop potential disaster if your methbox is dodgey or whatever..

 

also doing interpolation wont be too hard - essentially :
* have a 2d table for mapping Volts to interpolation factor
* overwrite the octane number with the output from the above
* overwrite the low octane map with the non-alt-map highoctane map
* use the standard fuel+timing routines to do the interpolation for us.

but I wont do it in this release because its still quite of lot of work, background checking on octane value and all

 

I disagree with this because usually when you'd run out of meth or something would fail would be when your at WOT. This is when you want the failsafe the MOST!

 

notice how i said swap "to" altmaps.

swapping back to standard maps wont have any restrictions - it will just do it as soon as the Volts drop below the threshold!

 

Yeah, I just walked away and then realized that was probably your intention,lol. So it can trigger the safer maps but it can't go back to the more aggressive maps under it goes below the load threshold. Gotcha.

 

Also....
I was totally lost here. So is this in agreement that you can have adjustable LOW and HIGH set points in which it interpolates between like the S-AFC works?

 

i will have to re-read what you mean about the S-AFC, but anything is possible

Just getting back to flipping to aggressive maps, should I add a timer so that you need to below that load threshold for XXX ms before it will go to aggressive maps?

if not then you could shift (which would drop your load) and then the ecu would goto aggresive... which would be bad.

So I am thinking of utilising the AutoICS timer for going to aggressive with ADC0f..

u know what I mean?

 

Hmm, good point. Maybe the additional timer would be helpful. If the failsafe triggers reset when everything is fine again, you'd be running meth on a far less aggressive map so if it reset to more aggressive map it might be fine. You'd just feel like you triggered some NOS,lol.

As long as its not switching back and forth a ton of times in a row, I think it would be fine.

 

Yep agreed.

People will just have to treat the "altmaps" as the more aggresive - rather than the other way round!