Confused with which spark plugs

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Aug 13, 2014 | 01:55 PM

SAM-UK300

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From: Hoddesdon, Hertfordshire

Confused with which spark plugs

Hi All,

I've got a 2002 Bug WRX running approx 340-350bhp, can someone please point me in the direction of the correct spark plugs, done loads of searching on here but struggling to find the answer.

Aug 13, 2014 | 02:15 PM

domino46

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NGK pfr7b

Aug 13, 2014 | 02:28 PM

Milneragain

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Quote:

Originally Posted by domino46

NGK pfr7b

Aug 13, 2014 | 02:30 PM

wrxyz

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Quote:

Originally Posted by Milneragain

Aye, mine is running about the same, and I agree with the above, unless your mapper says different.

Andy Forrest's website is good for this kind of info - just google it.
Plug gap is 0.7mm BTW.

Aug 14, 2014 | 07:16 AM

SAM-UK300

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Ok excellent cheers guys... will I need a map tweak after if it turns out I have different plugs in there currently?

Aug 14, 2014 | 08:26 AM

Lone_Urban_Wolf

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Quote:

Originally Posted by wrxyz

Aye, mine is running about the same, and I agree with the above, unless your mapper says different.

Andy Forrest's website is good for this kind of info - just google it.
Plug gap is 0.7mm BTW.

No need to gap them down if your on newage coil packs.

Aug 15, 2014 | 07:31 AM

wrxyz

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Quote:

Originally Posted by Lone_Urban_Wolf

No need to gap them down if your on newage coil packs.

As I said - unless your mapper says otherwise, also you do need to gap down if the boost you are running dictates...
My gap advice comes from Andy Forrest - so if you want to debate the point with possibly the best mapper around.... I would like to sit in.