Next week I will be installing a Surefly ignition, replacing a Bendix mag. I will also be building an auto plug harness from the harness kit G3i offers. I intend to run the timing fixed to start with since I have a solid performance base running on two mags for the past few years. This way I can see if any unusual flags pop up. Later I may add a manifold pressure line and switch it to allow timing advancement. But since most of my flying is at 10k and below, what I have read, your not gaining much from advancement when flying below 0k, but please correct me it this is not the case.
For an IO 54 D4A5 with 9:1 compression, it looks like the best plugs to use are either the NGK BR8ES (#3961) or the Denso IK27 (5312) iridium plugs. The KGK are yearly toss always (based on what I have read). The Denso, being iridium and twice the price, are they keep and reuse for a few years or not. Finally, what is the recommendation for the gap for each type plug. And any advise with the Surefly, the harness, and the plugs.
Thanks …..
For an IO 54 D4A5 with 9:1 compression, it looks like the best plugs to use are either the NGK BR8ES (#3961) or the Denso IK27 (5312) iridium plugs. The KGK are yearly toss always (based on what I have read). The Denso, being iridium and twice the price, are they keep and reuse for a few years or not. Finally, what is the recommendation for the gap for each type plug. And any advise with the Surefly, the harness, and the plugs.
Thanks …..