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Old 09-24-2022 | 12:03 PM
  #882  
Glowgeek
 
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Originally Posted by 1967brutus
No, it would not... It would provide variable fuel pressure, but NOT like the muffler does. The difference is that the electronically controlled pressure does not follow the RPM (unloading), ONLY the throttle position. It would basically be the same as a fuel curve without muffler pressure.
This is an important difference.
The thing is, there are TWO corrections on fuel: One for the throttle position, which is now our fuel curve, the other correction is "automatic" by means of the muffler pressure, and it corrects for unloading. The issue with that one is, that I have no idea how that "unloading-correction" works WRT numericals. I know it works, but I have no idea if that pressure is linear to RPM, squared to RPM or maybe even cubed. Or maybe it is none of the above. So I would not know how to describe that correction mathematically. And that is a problem, which can only be solved with LOTS of testing, and it might even require a LUA script ecause a Taranis can do a lot, but it does not have mathematical functions.

And let's face it, that craptrap, it really is not such a monstrosity that avoiding it would justify all that testing and programming. One of the principal goals was mainly to keep things SIMPLE...
Well, I don't understand why not. With a variable speed pump (engine) pushing some air into the tank and some air through a needle valve (solenoid), it seems logical that more pressure would develop in the tank as rpm increases. I can't see how it would simply push all that extra air out through the solenoid without some kind of rise in pressure. I thought we had seen Chris prove that theory just a few days ago by varying the speed of his air pump while using a needle valve tee'd into the line. All I'm proposing is to try the solenoid as an air bleed instead of the needle valve.

I'll do some pressure testing tomorrow.

Last edited by Glowgeek; 09-24-2022 at 12:09 PM.