Spark plug info needed
Thread Starter
Race Director
Joined: Feb 2004
Posts: 12,518
Likes: 19
Spark plug info needed
Oem 87's called for an fr3ls
Oem 88's called for an fr5ls
5 is hotter than 3, so I have been successfully using fr3ls with a 150 shot.
Ac-delco has converted over to dififferent numerical system. You cannot use it as you did the old system (heat range etc).
The new system assigned numbers *****, nilly and state not to try to cross heat ranges. This does not help me.
My 87 now uses an 41-629 to superceed the fr3ls.
My question is: Does anyone know whick plug is a heat range below the 41-629? I spent a ton of time on the phone with ac-delco, webite too. It was a total waste of time. Hopefully someone here can help. My odds are much better here.
Switching brands is not a problem, I am just trying to restore my combination for a decent baseline.
Oem 88's called for an fr5ls
5 is hotter than 3, so I have been successfully using fr3ls with a 150 shot.
Ac-delco has converted over to dififferent numerical system. You cannot use it as you did the old system (heat range etc).
The new system assigned numbers *****, nilly and state not to try to cross heat ranges. This does not help me.
My 87 now uses an 41-629 to superceed the fr3ls.
My question is: Does anyone know whick plug is a heat range below the 41-629? I spent a ton of time on the phone with ac-delco, webite too. It was a total waste of time. Hopefully someone here can help. My odds are much better here.
Switching brands is not a problem, I am just trying to restore my combination for a decent baseline.
Drifting
Joined: Jun 2001
Posts: 1,704
Likes: 459
From: Mass Mass
I can't help you directly, but here are some links.
Large NGK cross reference spreadsheet in Excel format
http://home.att.net/~ngkaz/wsb/Maste...ce_Charts4.xls
http://ngkaz.home.att.net/wsb/html/v...ome.html-.html
You can look up plugs by number and get cross refernces here to.
http://www.sparkplugs.com/default.asp
Hope this is a little help
Large NGK cross reference spreadsheet in Excel format
http://home.att.net/~ngkaz/wsb/Maste...ce_Charts4.xls
http://ngkaz.home.att.net/wsb/html/v...ome.html-.html
You can look up plugs by number and get cross refernces here to.
http://www.sparkplugs.com/default.asp
Hope this is a little help
Thread Starter
Race Director
Joined: Feb 2004
Posts: 12,518
Likes: 19
Originally Posted by SuperL98
I can't help you directly, but here are some links.
Large NGK cross reference spreadsheet in Excel format
http://home.att.net/~ngkaz/wsb/Maste...ce_Charts4.xls
http://ngkaz.home.att.net/wsb/html/v...ome.html-.html
You can look up plugs by number and get cross refernces here to.
http://www.sparkplugs.com/default.asp
Hope this is a little help
Large NGK cross reference spreadsheet in Excel format
http://home.att.net/~ngkaz/wsb/Maste...ce_Charts4.xls
http://ngkaz.home.att.net/wsb/html/v...ome.html-.html
You can look up plugs by number and get cross refernces here to.
http://www.sparkplugs.com/default.asp
Hope this is a little help
