zeitronix display question
zeitronix display question
I finally got around to getting the LCD screen for my zeitronix wideband.. I have it hooked up and everything is working great. I also got their boost sensor.
My question is, can I change the 4 inputs on the lcd screen? Since I am not running the EGT I would rather have that has a "user input" so I can monitor knock. And also would rather have RPM or TPS than the lambda display.. Is this possible?
So, I want the screen to display : AFR, Boost, User input (for knock), and RPM.
My question is, can I change the 4 inputs on the lcd screen? Since I am not running the EGT I would rather have that has a "user input" so I can monitor knock. And also would rather have RPM or TPS than the lambda display.. Is this possible?
So, I want the screen to display : AFR, Boost, User input (for knock), and RPM.
You can select the User Input to be displayed on the LCD by connecting the signal harness orange wire to ground (brown wire).
http://www.zeitronix.com/questions/Zt-2questions.htm
We strongly recommend using the EGT input. An inexpensive EGT probe is a great insurance for your very expensive engine. Heat kills engines, the EGT probe will tell you when things are getting too hot.
You have the tach in the car right?
Zeitronix Eng
http://www.zeitronix.com/questions/Zt-2questions.htm
We strongly recommend using the EGT input. An inexpensive EGT probe is a great insurance for your very expensive engine. Heat kills engines, the EGT probe will tell you when things are getting too hot.
You have the tach in the car right?
Zeitronix Eng
So, you are telling me that I can have, Boost, user input, egt, and AFR on the lcd screen all at the same time?
What it looks like to me is that the AFR, Lambda, and EGT are set to be on the screen at all times.. so I can only choose if I want boost/unser input/tps/tach for my fourth display option.
I want the screen to show: User input.... AFR
_______________________Boost...........RPM
Is that possible? I know I have a tach in the car.. but I want to use the feature of the zetron so I can see what my peak rpm was hit during a run.
What it looks like to me is that the AFR, Lambda, and EGT are set to be on the screen at all times.. so I can only choose if I want boost/unser input/tps/tach for my fourth display option.
I want the screen to show: User input.... AFR
_______________________Boost...........RPM
Is that possible? I know I have a tach in the car.. but I want to use the feature of the zetron so I can see what my peak rpm was hit during a run.
Last edited by Bioxide02; Sep 22, 2006 at 11:57 AM.
who uses lambda? are you joking? that IS what the sensor is for. lambda is the tool you purchased the zeitronix system to measure. A/F is only good if you are using 93 octane gasoline with a stoich ratio of 14.7 anything other then that and your AFR value will no be correct. with lambda, it is always measuring the rich/lean value regardless of what fuel you are using.
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Originally Posted by KevinD
who uses lambda? are you joking? that IS what the sensor is for. lambda is the tool you purchased the zeitronix system to measure. A/F is only good if you are using 93 octane gasoline with a stoich ratio of 14.7 anything other then that and your AFR value will no be correct. with lambda, it is always measuring the rich/lean value regardless of what fuel you are using.
Originally Posted by racegate
I've had a bunch of ppl PM me lately on 'tuning' methanol injected cars AFRs. There is some serious confusion surrounding how the wideband measures "AFR'.
Some people seem to think that since methanol and gasoline have a different stoichometric ratio (roughly 6.4:1 for methanol, versus 14.7:1 for gasoline) that the target number on the wideband will be off. This could not be further from the truth. The wideband does not care what type of fuel you are burning as it only measures excess oxygen related to the partial pressures of the gases. Now, the actual air to fuel ratio will need a stoich compensation, but YOU STILL TARGET THE SAME DISPLAY AFR on the wideband. 15% rich of stoich is 15% rich of stoich regardless of the type of fuel used.
Some people seem to think that since methanol and gasoline have a different stoichometric ratio (roughly 6.4:1 for methanol, versus 14.7:1 for gasoline) that the target number on the wideband will be off. This could not be further from the truth. The wideband does not care what type of fuel you are burning as it only measures excess oxygen related to the partial pressures of the gases. Now, the actual air to fuel ratio will need a stoich compensation, but YOU STILL TARGET THE SAME DISPLAY AFR on the wideband. 15% rich of stoich is 15% rich of stoich regardless of the type of fuel used.
thats the point i was making. lambda reads correctly regardless of what fuel you use. AFR does not. if you have a AFR readout that shows 14.7 as stoich, then you fill up with methanol, it will show 14.7 as stoich still which is incorrect. recalibrating the sensor to the correct stoich of 6.45:1 is what must be done to use AFR correctly if you switch or mix fuels. or, simply use lambda and don't worry about AFR.
