Hey all, recent learner here not one to usually chime in as I am a noob and don't want to give improper info but would like to start based on the 2 swaps I have done with my boy and the tweaks that worked for our builds, the norm 2.3 Mazda converted with a 2.5 fusion running great and the most recent we did a swap 2.3 Turbo head on a 2.5 Fusion Block. Been running fantastic for past 6-weeks however, just had P0300-P0302 codes and I have check all the norms and swapped a bunch of stuff still issues and working through yet my question on the 2.3/2.5 swaps which I cannot seem to find anywhere is this:
What should the spark plug gaps be set to since its either a 2.5 engine on a 2.3 pcm'd system or a 2.3 head on a 2.5 block with a 2.3 pcm coding?
2.3 Gap of .024 - .027 or 2.5 Gap of .049 - .053 ? ?
Just wondering if my misfires are related to a slightly bigger bore and also a slightly longer stroke of the pistons which would require a greater gap ensuring a bigger bang.
Now I could be wrong here but seeing as the firing is married to the harmonic balancers position related to the cams position there is a possibility that the gap should be greater to accommodate the extra sized volume of the 2.5's block even though its marginal it still is a difference in volume.
ANY advice would be greatly appreciated.
Cheers
What should the spark plug gaps be set to since its either a 2.5 engine on a 2.3 pcm'd system or a 2.3 head on a 2.5 block with a 2.3 pcm coding?
2.3 Gap of .024 - .027 or 2.5 Gap of .049 - .053 ? ?
Just wondering if my misfires are related to a slightly bigger bore and also a slightly longer stroke of the pistons which would require a greater gap ensuring a bigger bang.
Now I could be wrong here but seeing as the firing is married to the harmonic balancers position related to the cams position there is a possibility that the gap should be greater to accommodate the extra sized volume of the 2.5's block even though its marginal it still is a difference in volume.
ANY advice would be greatly appreciated.
Cheers
