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View Full Version : injector basics please trying to setup a tune



Cool28
February 14th, 2014, 11:16 AM
I have the injector sheet for these siemen-deka 80lb injector. Its mostly all greek to me since the numbers don't go with what efilive has or im lacking the formula to covert them. I have this one injector voltage offset. I have the numbers for voltage like 6v is 2.811 offset, 8v is 1.77 offset. where do I put it in at cause the row is manifold vacuum(psi). Do I put these number in the 0 psi one. Is so how would I go about getting the rows setup? Also the row name is alittle weird to me is this for pressure above atmosphere?

I have a tune for the siemen motron 80lb but I don't know if they are the same or not. Looking at that data it becomes even more confusing lol.

I know some of this is guess work but how would I go about making the corrections based off logs?

Cool28
February 14th, 2014, 11:18 AM
16397heres the data sheet im going off of

darcy
February 14th, 2014, 02:02 PM
You need to convert the Ford type data to GM type data.
One of the guys on HPTuners posted a spreadsheet to do all the math for you - SEE HERE (http://www.hptuners.com/forum/showthread.php?45317-Ford-injector-data-to-GM-format-conversion-spreadsheet). It's even prepopulated with the Seimens Deka 80lb data :)
You'll still need to transpose the tables as required to paste into the EFI Live layout though.

Cool28
February 14th, 2014, 02:13 PM
Oh wow thanks a bunch

joecar
February 14th, 2014, 02:52 PM
I'll analyze your spec sheet and I'll get back to you...

joecar
February 14th, 2014, 03:02 PM
The EFILive tunetool has a transposer... see the Conversions tab.

Cool28
February 14th, 2014, 06:54 PM
wow thank you both it helped a lot. B4003 min injector pulse width I figure I just put the data sheet number down the whole way. Is there anything else I need to adjust before I can start tuning?

Cool28
February 14th, 2014, 09:13 PM
hmm so does this look right? If so only thing I need to figure out is small pulse threshold, injection timing and injection timing trim. I want to put 1.2-1.7 as small pulse threshold but that seem low to me