Any one know of a good online how to about tuning &

[rakkasan]

timing? I understand adding/subtracting fuel, but I don't firmly understand all of the aspects of timing.

TIA

 

[figgie]

not so simple

www.efi101.com/forums

 

[mattjk]

also checkout www.openecu.org lot's of good info there.

 

[themadhatter]

Its not an online resource but i sugest buying and reading a book called "How to Tune and Modify Engine Management Systems" it explains how the euc works why it does what it does and how to tune an engine plus it has lots of projects in the back of the book

 

[toyman1987]

If you go to AEM's website forum, you can download the EMS software, and in it is a EFI 101 file (pdf) that has a lot of good stuff, fuel requirements, pump sizing etc. some is geared towards the AEM EMS but a lot of general info also.
and it's free.

http://forum.aempower.com/forum/index.php?topic=17194.0