Approved Data P-Series/JPI Instrument Installation and Use

[Kevin McDole]

Originally posted by Bob Cook Some people will use the PEAK on the JPI/Gem to determine peak but there are *5* more cylinders to LEAN before you are LOP.

Bob,
Agreed. LeanFind mode tells you the first to peak - and for LOP operation you need to know which peaks last (i.e. the richest cylinder).

Here's two thoughts about how to deal with this:

1) Use the LeanFind mode "in reverse." If you use LeanFind beginning from LOP and richen the mixture, the first cylinder to peak will be the richest - so you can use that as the reference, and lean out the misture until you've hit your desired delta LOP temp.

2) Or, JPI offers a $100 update to the EDM-760 to give it the “Overlean” feature, which is an icicle display that helps you setup LOP.