96 ultra fi,replaced stock pistons with keith black hi comp ones.retarded 4 degrees as per kb specs.but pings really bad starting off. I always run 94 octane.so no fuel problem.question is,should I try retarding a little more,or do I need a fuel management system.
Both.
You can Try 2-3 more degrees retard without harming anything.
That PING will be the KILLER...
How are you Retarding the EVO motor?
Also fuel should have an affect on the Ping... ESP 94 octane... BUT ? on an EVO FI tuner?...
Been a long time since I had my hands on an EVO... I did a build up my Bought new 97 FXDS... I just can't for the life of me Remember how the timing was done. Mine was a Carb...
I think your ping can be elevated with Retard.
What Cranking pressure is it running? Do a compression test and post back, then we can see what you are up against.
Fuel management system ? on which one to use.
I use a SE off road Tuner for fuel and timing on my newer TC 103" but that is a different dog to put into your fight.
There are several EVO owners on this site and they will refresh My Memory also... :rofl
Maybe my Brother from another Mother will come by... Breeze3at, he still has the EVO beast...
I'll send him a PM... and a Link...
signed....BUBBIE