plugs and HT lead upgrade
Dec 7, 2008 | 03:23 PM
Thread Starter
Joined: Jun 2008
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From: In the garage
plugs and HT lead upgrade
wondering which plugs are the best for my WRX running 347bhp, and also is there an HT lead upgrade worth doing
thanks
Iain
Dec 7, 2008 | 03:25 PM
Joined: Oct 2008
Posts: 614
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From: Somewhere in Glasgow
ngk 7b spark plugs are what I bought and im heading for similar power to yourself
Dec 7, 2008 | 08:07 PM
Joined: Jan 2001
Posts: 16,548
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From: ECU Mapping - www.JollyGreenMonster.co.uk
standard ht leads are best and ngk pfr7b as said are best at that level.
Simon
Dec 8, 2008 | 08:49 AM
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Joined: Jun 2008
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From: In the garage
thanks 290 and Simon
Dec 8, 2008 | 01:04 PM
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sorry to jump in but whats the best plugs if aiming for 400bhp on a p1
thanks
Dec 8, 2008 | 01:47 PM
Joined: Aug 2006
Posts: 23,764
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From: Leicester
Quote:
Originally Posted by
stevie1982
sorry to jump in but whats the best plugs if aiming for 400bhp on a p1
thanks
NGK PFR7B (see JGM's post above).
...Which begs the question: at what level are the even colder PFR
8 's required?!
Last edited by joz8968; Dec 8, 2008 at 01:51 PM .
Dec 17, 2008 | 12:57 PM
Thread Starter
Joined: Jun 2008
Posts: 3,927
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From: In the garage
thanks guys - how long do spark plugs last, or before they begin to drop in performance?
next silly question - how easy are they to change, as its a boxer engine the plugs arnt easily accessible ??
Dec 17, 2008 | 01:37 PM
Joined: Aug 2006
Posts: 23,764
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From: Leicester
Quote:
Originally Posted by
IainMilford
...how long do spark plugs last...?
Taken from NorthUrsalia.com: Home ...
Normal rates of gap growth are as follows:
Four Stroke Engines: 0.01-0.02 mm (0.00063-0.000126 ") per 1,000 km (621 m)
NorthUrsalia.com: Reading Spark Plugs
Last edited by joz8968; Dec 17, 2008 at 01:38 PM .
Dec 17, 2008 | 01:39 PM
Thread Starter
Joined: Jun 2008
Posts: 3,927
Likes: 91
From: In the garage
thanks pal
now I just need to get them out, 17mm socket isn;t it??
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