Measurement on a mechanical system, especially a complex one, is always difficult! You might look at EGT, and monitor the oxy sensor for changes; with, and without. The manifold vacuum should change with more power, and the RPM should increase slightly when you add the water.
Can you find any documantation on the war birds? That should show (for pilot training purposes) what to look for in a boost situation.
The Oxy sensor is a must look variable, because the computer uses it as a feedback controller. I know with HHO (Brown gas) it has to be fooled, or the car's computer will add fuel to try to fix the change in exhaust gas composition.
Hi @smithlabs, again many thanks for your valuable contributions.
I'll see if the Carista OBD dongle in unison with my android phone running the 'Torque' app will allow me to view the data in real-time. When I was playing around with the unit a few weeks ago I quickly set up a boost gauge and air intake temp gauge.
If I can view the oxy sensor data what options do you think may be possible to be able to do in terms of a hack/fix? I've seen Snow Performance and other commercial water/methanol systems including VAG group cars and I don't recall any mention of the oxy sensor.
I'm running pure water at the moment but might start introducing methanol. I don't want to add too much as I'm not sure if it will 'eat' through the section of silicone tubing from the screenwash feed through to the pump. Also, I have the option of swapping the 0.6mm nozzle for a 0.8mm one (280ml/min to 380ml/min).
I have seen the dongles, but haven't needed to play with one yet. How does it measure torque?
The oxy sensor may not enter in. But I would bring a lead in, and put a meter on it to be sure. Additionally, if you cheat with an opamp (off the posting I just did), you can make the computer think it needs more gasoline, by amplifying the existing signal. It will hurt your gas milage, but should give more power. So cut it in when you want more.
I wouldn't worry about the methanol in the washer reservoir, most of the washer fluid uses alcohol for antifreeze.
The methanol addition would act as more 'fuel' would it? All I can think of is that water/meth injection displaces the existing mix in the combustion chamber....... a correct assumption?
Measurement on a mechanical system, especially a complex one, is always difficult! You might look at EGT, and monitor the oxy sensor for changes; with, and without. The manifold vacuum should change with more power, and the RPM should increase slightly when you add the water.
Can you find any documantation on the war birds? That should show (for pilot training purposes) what to look for in a boost situation.
The Oxy sensor is a must look variable, because the computer uses it as a feedback controller. I know with HHO (Brown gas) it has to be fooled, or the car's computer will add fuel to try to fix the change in exhaust gas composition.
Hi @smithlabs, again many thanks for your valuable contributions.
I'll see if the Carista OBD dongle in unison with my android phone running the 'Torque' app will allow me to view the data in real-time. When I was playing around with the unit a few weeks ago I quickly set up a boost gauge and air intake temp gauge.
If I can view the oxy sensor data what options do you think may be possible to be able to do in terms of a hack/fix? I've seen Snow Performance and other commercial water/methanol systems including VAG group cars and I don't recall any mention of the oxy sensor.
I'm running pure water at the moment but might start introducing methanol. I don't want to add too much as I'm not sure if it will 'eat' through the section of silicone tubing from the screenwash feed through to the pump. Also, I have the option of swapping the 0.6mm nozzle for a 0.8mm one (280ml/min to 380ml/min).
Much appreciate your time bud :)
Rob.
I have seen the dongles, but haven't needed to play with one yet. How does it measure torque?
The oxy sensor may not enter in. But I would bring a lead in, and put a meter on it to be sure. Additionally, if you cheat with an opamp (off the posting I just did), you can make the computer think it needs more gasoline, by amplifying the existing signal. It will hurt your gas milage, but should give more power. So cut it in when you want more.
I wouldn't worry about the methanol in the washer reservoir, most of the washer fluid uses alcohol for antifreeze.
LOL, sorry, the app is called torque.
https://play.google.com/store/apps/details?id=org.prowl.torque&hl=en
The methanol addition would act as more 'fuel' would it? All I can think of is that water/meth injection displaces the existing mix in the combustion chamber....... a correct assumption?
It's all fun @smithlabs :)
Thanks again.
No, as I understand it, the extra input is burned in addition to the normal injected fuel load.
MORE POWER!
:) :) :)Cheers :)
A bit of an update on the car soon, not SH2OMI related but I was panicking this morning.
What happened (when you have time)?
:O