Stock Spark Correction tables - Tuning Forum

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Stock Spark Correction tables
Tuesday, February 10, 2009 5:05 AM

I need your help guys.

Can anyboby with HPT and a ECO L61 to post pics or values with Axis of this tables.?

Spark Control -> Spark Advance ->Spark Correction

IAT Spark vs ECT vs MAP
IAT Spark Advance Correction Mult
ECT Spark vs ECT vs MAP
ECT Spark Advance vs ECT vs MAP
ECT Spark Advance Correction Mult

Thank you very much in advance.

Re: Stock Spark Correction tables
Tuesday, February 10, 2009 3:05 PM


you asked for 5 tables, but I think you asked for the same one twice. This is all there is

if you want higher resolution, or more accuracy in the numbers just ask.





Re: Stock Spark Correction tables
Tuesday, February 10, 2009 4:15 PM
Question how do you post them like that?



FU Tuning



Re: Stock Spark Correction tables
Tuesday, February 10, 2009 4:34 PM
John Higgins wrote:Question how do you post them like that?


prntscrnsysrq key on the keyboard, then I use MS paint to crop the picture. save as .jpeg, upload to photobucket, post.

its just a regular screen shot that I crop, thats all.





Re: Stock Spark Correction tables
Thursday, February 12, 2009 4:11 PM

Nice, Thank you very much for the pics.

Now, I'm running my megasquirt fuel only and looking to retard timing. Let me know if I'm in a mistake. I will put a resistor in place of IAT sensor about 300 to 400 ohm so ECU will think it's @111 degrees F and retard 2 to 3 degrees. I have one already but ECU reads 86 F. and the original sensor connected to MS. This way I don't need a complete MSD to just retard 2 degrees.

Any complication you may think that could rise.?

I'll be testing tomorrow with a 150 N2O shot. I'm running a 100 shot right now with stock timing.

Thanks again.
Re: Stock Spark Correction tables
Thursday, February 12, 2009 4:51 PM
I believe IAT comes into play with commanded AFR, so screwing with it may make the ECM change things for the worse.

While I can't find any specific IAT- related fuel tables, its well documented that HPT doesn't interface with all of our tables.. in other words, there may be an IAT multiplier for injector pulsewidth that we cannot see.

However, if you're giving your MS full control of the fuel system then I don't really see any negative effects other than timing being retarded all the time.. meaning power loss whenever you aren't spraying nitrous.





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