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Hey, just a quick question, today I had my spark plugs replaced and gapped at 0.7mm hoping to fix my minor misfiring issue. It still hasn't made a difference so my next and final port of call are coilpacks (after checking everything else) so I was wondering if I got new coilpacks, am I still alright to keep the spark plugs and the gap of 0.7mm?

If it's not alright what sort of problems will I run into if I kept the gap?

Plugs are heat range 6, copper and 0.7mm.

Cheers.

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Thanks for the replies guys.

Sorry, I forgot to mention the car is making 194rwkw @ 12psi (standard turbo).

So should I get new plugs gapped to 0.8mm with a heat range 7 or am I ok to continue using the new ones I dropped in today?

Cheers.

Alright then, no worries.

I'm looking into the Yellow Jackets as they seem to have a pretty good rep and are good value for money. Yeah, I've read that the standard coils are excellent but cos abit over $1k though :(

So if I left it gapped at 0.7mm witht he new coilpacks, is there any sort of negative effects that I might induce (eg. fouled plugs, overheating coilpack etc.)?

Thanks for the replies guys.

Sorry, I forgot to mention the car is making 194rwkw @ 12psi (standard turbo).

So should I get new plugs gapped to 0.8mm with a heat range 7 or am I ok to continue using the new ones I dropped in today?

Cheers.

I'm running a 1mm gap @ 150AWkW & heat range 6 (I think) in my RB25DET, with Splitfire coils. Don't have any sort of problem with misfires or the like.
They aren't hard to remove and regap if you are worried.

I think you can get the stock ones for around $500 from the US.

Alright then, no worries. I just wasn't sure if they're is any negative effects on the car if I ran a close gap with a brand new set of coils.

I prefer something local so I'm pretty keen on the Yellow Jackets :thumbsup:

I'm running a 1mm gap @ 150AWkW & heat range 6 (I think) in my RB25DET, with Splitfire coils. Don't have any sort of problem with misfires or the like.

Cheers for the info. What boost are you running?

The bigger the gap. The better the spark (if the coilpacks are strong enough) bigger gap can increase torque

Ooooo, I see. So let me see if I get this right:

- weak coilacks require a smaller gap so that there can be spark, but itsn't so good for performance (but can eliminate misfire)

- coilpacks with a strong punch can utilise a spark plug with a larger gap (due to being able to create a bigger spark over a larger distance) and can increase torque

- running a small gap (eg. 0.7mm) on a set of new coilpacks isn't "bad", but not doing myself any favours in terms of performance.

Correct?

spend $24 and put BK7RE in . pregapped .8 heat range 7.

Im gonna have to do this and try... siliconed up the coil packs today and not much change in the deadness zone after around 4000rpm+. I pulled the plugs out and cleaned them up while I was at it. (Battery went flat and I wanted something to do while it was charging). Will replace the plugs during the week... might have to try a $20 VN commodore wasted spark setup since I cant justify spending $400 on coil packs for a car im going to sell soon.

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