Electrical help with coils

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NICO
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Post by NICO »

Legacy777 wrote:Did the miss happen just revving the engine when the car is sitting, or did you notice it while driving?

What exactly is the J&S monitoring or displaying? I thought it's supposed to detect knock....or does it notify you on misfires as well?

Do you mean you have to run the BKR7E-11 because of the newer heads, or is there another reason?

What kind of boost are you running? What do your plugs look like, do they look fouled or like they're running how they should be? You could probably gap them a little more.
it did it at the track when reving real high, and i could do it while driving.

j&s safe guard is a knock system it retards timeing at will on any cyc, it also has a dash light that will dim red for knock trace.

19psi going to 25psi and tune, plugs looks brand new and running strong with new coils. gap 25.

should i try gap 30mm?
1993 Subaru Legacy 44B STi 4Cam 16Valve Turbo Intercooled AWD
EJ22T, STi EJ207 DOHC, Vi-PEC (Spare Autronic) @ 426.20HP / 394.94ft lb @ 00psi
Tuned By: Franz Diebold ( DIEBOLD AUTOSPORT ) @ NVauto
Legacy777
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Post by Legacy777 »

What do your plugs look like? With that much boost, going too large you could risk blowing the spark out. However too small and you could be frying the electrode on the plug, which is why I asked what the plugs look like. If the electrode looks badly worn/fried, you could probably bump the gap up.

I'm also assuming you're talking about .025"/.030". The owner's manual calls for a 1.0mm to 1.1mm gap on the plugs, which equates to about .040" to .044"
Josh

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1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

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NICO
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Posts: 2013
Joined: Fri May 09, 2003 10:41 pm
Location: Hamilton Ontario Canada

Post by NICO »

Legacy777 wrote:What do your plugs look like? With that much boost, going too large you could risk blowing the spark out. However too small and you could be frying the electrode on the plug, which is why I asked what the plugs look like. If the electrode looks badly worn/fried, you could probably bump the gap up.

I'm also assuming you're talking about .025"/.030". The owner's manual calls for a 1.0mm to 1.1mm gap on the plugs, which equates to about .040" to .044"
ya sorry i messed up the gap you got it right, also my plugs at gap 25 all ways look nice and clean no black rich just nice white and everything in order, evrey time i take them out i show my dad and he says its burning perfect. i think i can try maybe just a little bit more of a gap i guess, i will report back see what happens.
1993 Subaru Legacy 44B STi 4Cam 16Valve Turbo Intercooled AWD
EJ22T, STi EJ207 DOHC, Vi-PEC (Spare Autronic) @ 426.20HP / 394.94ft lb @ 00psi
Tuned By: Franz Diebold ( DIEBOLD AUTOSPORT ) @ NVauto
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