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  #1  
Old 07-02-2007, 00:28
ChEsTeR ChEsTeR is offline
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Default Spark plugs

What do u guys do with the exhaust plugs when increasing power. OEM plugs are BCPR5E-11 wich are hotter then theintake ones do u change to ones from the intake side or just leave as it is. I just want 200 hp.
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  #2  
Old 07-02-2007, 08:07
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we only have the 4 plug head, but you need 7's in the intake side.
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Old 07-02-2007, 11:37
ChEsTeR ChEsTeR is offline
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But what about the exhaus side should i change to 7's also or maybe just leavr 6's
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Old 07-02-2007, 12:51
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when i had a twin spark 8 plug motor i ran 1 grade colder on both inlet exh, ie 7s on inlet and 6s on exhaust. i only ran about 10psi boost and UK ambient temps are pretty low (very bloody low today!)
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  #5  
Old 07-02-2007, 19:37
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When you buy them off the shelf the spacing probably wont be correct so check them with feeler gauges.Buy bcpr7es plugs on all 8 plugs spaced to 0.9mm .
These will work easily on a 200hp car
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Last edited by PukkaSilvia; 07-02-2007 at 19:39.
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  #6  
Old 07-02-2007, 19:42
ChEsTeR ChEsTeR is offline
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Thanx man
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