Having trouble finding correct NGK plugs. Help
Having trouble finding correct NGK plugs. Help Hey guys,
I've been running BR7EF NGK plugs with no issues with the old nitrous setup but since then I've changed everything 408, E85, +20# of boost and my tuner suggests 8's or 9's no problem other than I can't find them and need help.
I can find BR8ES - 5422 or BR9ES - 5722 but not sure if that would be same since the "F" means "tapered seat"
I also found B8EFS - 1049 or B9EFS - 1085 but I believe those are non-resistor plugs and assuming that wouldn't work with stock GM computer and other electronics?
The weirdest part is NGK suggested R5724-8 - 7317 and those are projected tip and no resistors......WTF....
Anyway hopefully you guys can help. Thanks!
I've been running BR7EF NGK plugs with no issues with the old nitrous setup but since then I've changed everything 408, E85, +20# of boost and my tuner suggests 8's or 9's no problem other than I can't find them and need help.
I can find BR8ES - 5422 or BR9ES - 5722 but not sure if that would be same since the "F" means "tapered seat"
I also found B8EFS - 1049 or B9EFS - 1085 but I believe those are non-resistor plugs and assuming that wouldn't work with stock GM computer and other electronics?
The weirdest part is NGK suggested R5724-8 - 7317 and those are projected tip and no resistors......WTF....
Anyway hopefully you guys can help. Thanks!
Try this , This is what I use (R5671A-10) (5820) these are nitrous plugs But I have AFR Heads, You need a non projected plug for nitrous
https://ls1tech.com/forums/forced-in...ard-plugs.html
NGK%20Spark%20Plugs.pdf
NGK race R5671A-7 vs NGK BR7EF
https://ls1tech.com/forums/forced-in...ard-plugs.html
NGK%20Spark%20Plugs.pdf
NGK race R5671A-7 vs NGK BR7EF
Last edited by Randy WS6; Aug 20, 2015 at 11:52 PM.
ok thanks,
Robs the B8EFS & 9's I show as no resistors, does that cause issues with electrical noise with stock GM computer etc?
Randy, thanks for the links I agree on the projector tip vs non in a nitrous/boosted engine, don't want to blow out the spark
Robs the B8EFS & 9's I show as no resistors, does that cause issues with electrical noise with stock GM computer etc?
Randy, thanks for the links I agree on the projector tip vs non in a nitrous/boosted engine, don't want to blow out the spark
