joyride5

I have a durametric tool. What values should I log so I can see my AFR's and injector duty cycle is within range?

dantzig

Log rpm, injection time and O2 sensor lambda values. AFR = lambda*14.7, and duty cycle (%) = (inj time)*(rpm)/1200.

While you are there, you might as well log engine load, MAF, air temp, ignition angle, boost pressure, boost pressure setpoint too.

Jon

joyride5

Thanks Jon!

Joe Weinstein

This is my old list from Kevin:

RPM
Engine Load
Mass Air Flow
Air intake temp
ignition angle
injection time
oxygen sensing bank 1 lamda value
oxygen sensing bank 2 lamda value
boost pressure of sensor
setpoint boost pressure
boost pressure control P/D factor
correction factor for b/c w/ knock control

TrackDays247.com

7500 is insane on these engines. Yikes.

prche951

Sad to see this happen to anyone. But a good lesson for all of us.

Os Inspector

Wow Kevin im glad you got ahold of that motor and not me as i was trying to buy it when he called you that morning=)

i wondered how bad it was because i knew what could happen.

Im interested in your datalog tool.

William,

Kevin

William, I think that your money was better staying in the Bank vs getting this motor. You most likely would have been disappointed. I'll put you on the datalog tool "list" Thanks..

Os Inspector

i agree i have my eye on two other motor but car should be apart by next week, hoping to get out of it witha new gasket and decking the heads while i build a spare block on my time. at this point i just wanna drive it stock motor would be fine even =)

Thanks for the info Kevin

puma

Kevin, is it going to cost around the same as the durametric? If we already have the durametric, is your program going to be still worth buying?

Kevin

Puma, price will be the same.. Worth buying>> faster logging, more values, individual knock (this alone is worth the price) Do you remember your failing fuel pump ordeal? Knock is key to preventing these engine failures.

Joe Weinstein

Kev, you should include a writeup on how to interpret the numbers, so when we all
buy your unit, we're not all emailing you our results every hour, asking what they
mean!
Joe

puma

do you mean there is a knock sensor for every cylinder? Or is the program going to be able to interpret at which cylinder the knock is coming from?

can't wait to see what it will look like.

Kevin

The engine has one Bosch knock sensor per bank. With the crank sensor and each camshaft sensor the ECU knows which cylinder is firing thus giving us Individual Knock resolution.

puma

nice, that is great, is your program going to be limited to a couple of cars (VIN) like the durametric or will it be free of use? What type of cars is it going to be working on?