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Wasted spark on LH2.4 with stock EZK

Karl Buchka said:
I made a single test board, but no working code.
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Karl
Okay. I you get this right, I'll buy a few of them... I will get my b5244t engine ready for my 245 before the summer.... Would have been nice to test it on that.
Please keep my informed.
Svein
 
I have had no shortage of people offering to test a whiteblock COP board. The main problem is that I don't know anyone local with a suitable car to to do initial testing on. I can't just send these out, completely untested, and hope for the best. I need to be sitting in the car with a computer and a debugger. The other thing is I don't feel like working on this project right now, so I don't.
 
Karl Buchka said:
I have had no shortage of people offering to test a whiteblock COP board. The main problem is that I don't know anyone local with a suitable car to to do initial testing on. I can't just send these out, completely untested, and hope for the best. I need to be sitting in the car with a computer and a debugger. The other thing is I don't feel like working on this project right now, so I don't.
Click to expand...

Karl.
I didn't mean it like that. If when you get it right...sometime in the future. I'll buy a few boards fro you...
:-)
Svein
 
okei, thought you might had discovered something that needed changes with the old boards. :)
 
Would either of these work? And if that answer is a yes, do they provide enough increase in spark output that it's worth the effort over the bosch or miata coils that most are using?

http://www.aemelectronics.com/high-output-igbt-inductive-smart-coil-1240

http://www.aemelectronics.com/high-output-inductive-dumb-coil-1239

Also I have seen a few mention the ability to adjust the stock dwell of the ezk. Is this done through a chipable ezk with the dwell being adjusted on the new chip? I'm sorry if this has been answered earlier in the thread.
 
jay f. said:
Would either of these work? And if that answer is a yes, do they provide enough increase in spark output that it's worth the effort over the bosch or miata coils that most are using?

http://www.aemelectronics.com/high-output-igbt-inductive-smart-coil-1240

http://www.aemelectronics.com/high-output-inductive-dumb-coil-1239

Also I have seen a few mention the ability to adjust the stock dwell of the ezk. Is this done through a chipable ezk with the dwell being adjusted on the new chip? I'm sorry if this has been answered earlier in the thread.
Click to expand...

I don't think they would give you any performance benefit. They would probably work, but the stock dwell is a little on the high side. Of those two, I would recommend the former. It saves you having to use external ignition modules.

You can adjust the dwell in the EZK with a new chip and/or an Ostrich.
 
Base Dwell: 3.0 mS
Max Continuous Dwell: 9 mS but don’t exceed 40% duty cycle
Max Intermittent Dwell: 80% duty cycle, 5 seconds maximum

I assume that base dwell, for this coil, means the min time needed to fully charge the coil. While Max Cont. Dwell would be the time needed to completely fry the coil?
 
It's poorly worded. Base Dwell is probably for normal operating conditions. Intermittent Dwell seems to be some kind of absolute max rating.

The Bosch coils operate around 5mS-6mS, depending on battery voltage. I've been rolling an idea around in my head for doing a firmware version that will cut dwell for coils that require numbers closer to 3mS. We'll see how that pans out.
 
Karl Buchka said:
The Bosch coils operate around 5mS-6mS, depending on battery voltage. I've been rolling an idea around in my head for doing a firmware version that will cut dwell for coils that require numbers closer to 3mS. We'll see how that pans out.
Click to expand...

This would omit the need to make a change to the EZK chip itself?
 
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