Big Willy Style
New member
Hey guys what is the best plug to run in a 1998 SRX 700. I am having problems and fouling plugs within the first couple of minutes of the sled running. I am trying to figure out what the hellis going on but getting expensive with buying new plugs! Thanks,
BWS
BWS
harness racer
New member
The BR9ES has a standard non projected firing end and traditional height ground electrode. The firing position will be set at about 1.0mm from the combustion wall.
The BR9EYA has a slightly longer firing position set to 2.0mm and has a V-grooved center electrode for better ignitability and increased performance.
The BR9ECS also has a standard center electrode (non V-power). But it differs in that it has a much shorter and stronger ground electrode that helps to prevent ground electrode failure, especially in high rpm small engines that have a lot of vibration and bad harmonics. It has a much lower firing position at only .3mm.
If an application calls for the BR9ECS I would suggest ONLY using that plug as I have seen the BR9ES/EYA have ground electrode failures when substituted. If the applications for the BR9ES, then the BR9EYA could be used as a better performing option (so long as the engine has clearance for the extra 1mm of projection) as could the BR9ECS (especially in a racing application to be sure you won't have any ground failures, or in a forced induction or nitrous application). Hope this helps, thank you.
Best regards,
Brandon Peeler
Technical Support Representative
Aftermarket Division
NGK Spark Plugs (U.S.A.), INC.
46929 Magellan Dr.
Wixom, MI 48393
The BR9EYA has a slightly longer firing position set to 2.0mm and has a V-grooved center electrode for better ignitability and increased performance.
The BR9ECS also has a standard center electrode (non V-power). But it differs in that it has a much shorter and stronger ground electrode that helps to prevent ground electrode failure, especially in high rpm small engines that have a lot of vibration and bad harmonics. It has a much lower firing position at only .3mm.
If an application calls for the BR9ECS I would suggest ONLY using that plug as I have seen the BR9ES/EYA have ground electrode failures when substituted. If the applications for the BR9ES, then the BR9EYA could be used as a better performing option (so long as the engine has clearance for the extra 1mm of projection) as could the BR9ECS (especially in a racing application to be sure you won't have any ground failures, or in a forced induction or nitrous application). Hope this helps, thank you.
Best regards,
Brandon Peeler
Technical Support Representative
Aftermarket Division
NGK Spark Plugs (U.S.A.), INC.
46929 Magellan Dr.
Wixom, MI 48393