In theory I tried to time the END of injection to the intake valve crack open point, so the full amount of fuel is being injected to the closed intake valve but it may be just beginning to open as the end of injection completes, yes. I did this in attempt to conserve fuel near the valve and keep the reversion effort of upward moving piston while intake valve is open minimized (from about 330* to 365* there is in theory a potential for strong surge of pressure into the intake runner that tries to push air and fuel out of the runner and back into the manifold at low rpm say, 500-1200rpm with mild cam, and higher with larger the cam is).
I use a full 3" exhaust and tune it lean, (14.8-15.2) have had many cars like this and never had any 'smell' from the driver seat to really speak of, with any engine, 2.0, 2.4, 3.0, 5.3, they shouldn't really smell if the exh ends at tail of the car and it's tuned right imo.Hows the idle smell? Do you feel the car runs better right after the IVO or after the EVC?
It stinks with the cutout open though, regardless of injector timing or any other variables. The engine is so old and so full of aged particles that I bet the exhaust would smell even if you spun the engine by hand, without putting any fuel in.
I am more interested in the economy, if any, to be had. I'd sure love to break 25mpg (the stock fuel economy for the stock 4-cylinder 2.4L from this car) at five or six hundred hp in an actually robust, daily drivable config.
From what I can tell so far, If an injector goes 95% duty cycle for example, it will be open all the time right. So it doesn't matter when you "end" the injection spray (after the exhaust valve closes for example) because the injection event starts WAyyyyyyyyyyy before that when it's near 90% duty cycle. So it's going to just be spraying through/during overlap instead of finished spraying before overlap if you move EOIT to past overlap. It might not be an issue with some injectors, but others have this really sharp pin point spray that seems like it would just wash down the cylinder wall with little effort.Im not entirely sure if i like how it runs with it right after the EVC but it did get rid of the fuel smell. But if i move it toward the IVO with better results then i can deal with some smell.
Ill do some calculations later and see what i find out.