NGK or Denso Spark Plugs?
- Thread starter Gebo
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I use NGK Laser Iridium on everything. For some reason RA has the best prices for NGK plugs.
I use NGK because Denso gaps are too large for my application.
Originally Posted By: UG_Passat
I use NGK because Denso gaps are too large for my application.
On Gen Coupe 2L turbo it came with Denso TT from the factory. Official gap is ~0.040". The came at 0.028" or so from the factory and the engine for me runs best at 0.032". If you run at the factory spec you get spark blowout when in high boost.
You can always regap the plugs closer.
I use NGK because Denso gaps are too large for my application.
On Gen Coupe 2L turbo it came with Denso TT from the factory. Official gap is ~0.040". The came at 0.028" or so from the factory and the engine for me runs best at 0.032". If you run at the factory spec you get spark blowout when in high boost.
You can always regap the plugs closer.
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Both my Forester and the Ducati both call for NGK as the OE plug.
In many Japanese cars, the owners manual will have 2 spark plug part numbers, one for NGK and one for Denso.
That makes me think that one brand is not any better than others.
LEO99, some Toyota models left the factory with NGK plugs. The 3VZ-FE had 3 Denso spark plugs and 3 NGK spark plugs.
I buy NGK plugs because typically the perform the same way as OE, and many cars leave the factory with NGK.
That makes me think that one brand is not any better than others.
LEO99, some Toyota models left the factory with NGK plugs. The 3VZ-FE had 3 Denso spark plugs and 3 NGK spark plugs.
I buy NGK plugs because typically the perform the same way as OE, and many cars leave the factory with NGK.
If you are not price sensitive, I would stick with OEM, period!!!
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