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| AndyEMG |
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Hi just got myself a series one EB XR8 and added a couple of things and was wandering how far I can open up the spark plug gap.
Added the following: 9mm Queensland ignition leads, MSD Blaster coil, Champion Niridian spark plugs. Also did the thermo fan conversion and added sports panel filter. The standard gap range is 1.2-1.4 i think... I have 1.6 on it at the moment but I was wandering if i can go more? Any help will be much appreciated.
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| EBXR8380 |
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Trouble with going more is they wear further apart ..I doubt you'll have issues with Iridiums though...Wider gap gives you the potentual to have bigger spark but a smaller gap gives you a stronger spark..Fitting a cdi would help....
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| Waggin |
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I didnt think you could re-gap the iridiums ?
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| EBXR8380 |
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Some came out with approx 2mm gap and had issues with high rpm miss..The fix was to close gap down to 1mm
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| dodgie |
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NGK recomend closing the gap 0.004" (0.1mm) for every 50 hp over stock your engine has.
I had mine iridiums gapped at 1.4 (stock gap) with no problems, but I am trying a 1.25 gap now. I think the platinums are gapped 1.1mm stock..
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| EBXR8380 |
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On a hi performance engine without cdi the gap has to come down to .030 approx .7mm
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| AndyEMG |
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i have taken the gap down to 1.29mm. and the fuel consumption isn't as good and there is a slight miss i think.... It also doesn't have as good throttle response now..
The champion gold plugs were stock gapped at 1.4, i think i might take them back up to that?
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| TerroristGHIA |
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Ditch the iridiums, they are crap on the 5.0. Mine had a slight miss on the dyno above 4000rpm, and a change to stock plugs gapped to 1.1mm and with a good retune from Autotech, i picked up 12rwkw down low and 10 rwkw up top.
Brett
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