I just swapped out my 8mm plug wires to 9mm Ford Racing ones and I feel like the car has loss some power. I have NGK TR6 plugs gapped around 32-36 I can't remember the exact number and oem coil packs.
Power loss switching to 9mm wires
- Thread starter Gavinb_SVT
- Start date
a multiple cylinder misfire happens under light acceleration. Under hard acceleration it doesn't miss a beat. And I'm not sure about the fuel filter.
my motor is stock, no boost or nitrous.
Sounds like you have some wires crossed (no pun). At idle will it hiccup or backfire at all?
I did that recently. I had "thought" I put them in the right locations. But found I swapped plugs 2 and 3. Switched them and car purred like a kitten.
-Mark
I did that recently. I had "thought" I put them in the right locations. But found I swapped plugs 2 and 3. Switched them and car purred like a kitten.
-Mark
If your motor is stock, no boost etc., then you need to pull those TR6's out and run a 5 heat range plug gapped properly. I'd give the NGK 3951 a try, gapped at .054 and see if that helps.
^ This is what I was getting at also. Autolite 764's at 0.054 thousands are also an option.
Also, inspect the wires and make sure that none of them are crossed or arching. As the majority of the engine is aluminum which presents an easily accessed conductive path (valve covers).
Realistically, if this was not an issue prior to replacing wires, I would swap the old set back on and see if this issue persists. If not, then you've isolated your problem. Start with the free solutions before spending money. Data-logs would be another great place to start too, if the solutions above are not working out for you.
Also, inspect the wires and make sure that none of them are crossed or arching. As the majority of the engine is aluminum which presents an easily accessed conductive path (valve covers).
Realistically, if this was not an issue prior to replacing wires, I would swap the old set back on and see if this issue persists. If not, then you've isolated your problem. Start with the free solutions before spending money. Data-logs would be another great place to start too, if the solutions above are not working out for you.
I had misfire issues , got ford racing plug wires with motorcraft platinum plugs and msd coil packs. No more issues now. Gapped plugs at 0.54
sent from somewhere,while in my cobra.
sent from somewhere,while in my cobra.
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