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Old 27 July 2009, 01:46 PM
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jason and his scooby do
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What gap do you guys set your plugs 2 my ngk pfr7bs have come pre gapped at 0.8mm is this right or do i need to re gap them is for a 2004 sti running 331bhp cheers
Old 27 July 2009, 01:51 PM
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scooby546
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I have these installed on my classic, and they are set to 0.7mm, seem to run fine (they were set to this out of the box, but I checked just to make sure) - I would suspect yours should also be set to 0.7mm but not 100% sure mate
Old 27 July 2009, 01:58 PM
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coops1
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They come pre-set at 0.7 (but always check them first) and will be fine but ideal if you can re-gap them to 0.65 it will run better.
Old 27 July 2009, 02:00 PM
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jason and his scooby do
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cheers guys for that i will re set the gap to 0.65mm
Old 27 July 2009, 03:14 PM
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scooby546
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Should I re-gap mine to 0.65mm as well?
Old 27 July 2009, 03:21 PM
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JohnD
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They should run fine at 0.7mm but if you're running more than stock boost (as you are if you've re-mapped to get 331 - 1.4 bar?) then 0.65mm gives less chance of spark blow-out

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Old 27 July 2009, 03:25 PM
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scooby546
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Cool, thanks - I'll do that. Still running standard at present (OP running 331, mine is standard V4 sti classic), but looking for re-map soon so it will be worth doing

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Old 27 July 2009, 04:16 PM
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dave_garrett
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I'm running 1.5bar with standard gaps (0.7mm) with no problems what so ever . My 7's came with 0.7 gaps, are you sure there set to 0.8?
Old 16 October 2012, 04:10 PM
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littlebit
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Dave is that on standard internals I have a turbo 2000 runing 1.5 bar runs fine just a bit concerned as I think the boost is high
Old 16 October 2012, 05:43 PM
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95turbowagon
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Just fitted some, mine were gapped to .8mm and regapped them to .65mm
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