Surface Discharge Spark Plugs. - Page 2

Engineer · Jan 29th, 2006, 19:57

Thanks for the interest guys, originally posted to fish for some feedback on their usage in current turbo engines having only used Champion Racing surface discharge plugs to good effect in high compression B230 and B21 Turbo engines. One of my considerations was that the Champion and NGK racing SDP is not a resistor plug and would/could cause a problem with ECU interference.

The nearest resistor plug that comes close to the above and fits Volvo heads would appear to be a Brisk road or racing spec plug, unfortunately Brisk sparkplugs quality is suspect. Champion has recently developed a resistor SDP for Ducatti’s 999 Superbike which would support their advantages in high compression normally aspirated engines but these do not fit due to plug design.

I have now received feedback from someone who has experimented with SDP’s in high boost turbo engines and he has indicated their unsuitability due to spark blow out. Which I guess answers my original question unless anyone knows different?

Picture of Champion / NGK SDP.

Jan 29th, 2006, 19:57	#11
Engineer Rubbing son is racing.... Last Online: Jan 18th, 2017 14:26 Join Date: Nov 2004 Location: London	Thanks for the interest guys, originally posted to fish for some feedback on their usage in current turbo engines having only used Champion Racing surface discharge plugs to good effect in high compression B230 and B21 Turbo engines. One of my considerations was that the Champion and NGK racing SDP is not a resistor plug and would/could cause a problem with ECU interference. The nearest resistor plug that comes close to the above and fits Volvo heads would appear to be a Brisk road or racing spec plug, unfortunately Brisk sparkplugs quality is suspect. Champion has recently developed a resistor SDP for Ducatti’s 999 Superbike which would support their advantages in high compression normally aspirated engines but these do not fit due to plug design. I have now received feedback from someone who has experimented with SDP’s in high boost turbo engines and he has indicated their unsuitability due to spark blow out. Which I guess answers my original question unless anyone knows different? Picture of Champion / NGK SDP. __________________ Engineer Last edited by Engineer; Apr 3rd, 2010 at 23:43.

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