Spark Plug Info...Part #'s
For those interested I have found the crossover number for the Ralliart racing plugs made by NGK. There has been info on this before but hopefully this will clear things up a bit. Ralliart plugs are NGK ....
# R7376-7
#R7376-8
#R7376-9
#R7376-10
$29.06 ea from ...yes that is very expensive but about 25% less than the Ralliart set.
sparkplugs.com
denso's are...
IW01-24 these are equiv to heat range 8 (or 1 number colder than stock, a good choice for modded cars).
$35.30 ea
sparkplugs.com
They both feature an iridium electrode and platinum gound but denso's electrode is even smaller than ngk (they claim a superior iridium material is used). Your choice but these plugs are made to last a long time. For those wanting to squeeze that last bit out of their cars, this might help. I plan on the Denso's run at an .030 gap. I will post after I try them.
# R7376-7
#R7376-8
#R7376-9
#R7376-10
$29.06 ea from ...yes that is very expensive but about 25% less than the Ralliart set.
sparkplugs.com
denso's are...
IW01-24 these are equiv to heat range 8 (or 1 number colder than stock, a good choice for modded cars).
$35.30 ea
sparkplugs.com
They both feature an iridium electrode and platinum gound but denso's electrode is even smaller than ngk (they claim a superior iridium material is used). Your choice but these plugs are made to last a long time. For those wanting to squeeze that last bit out of their cars, this might help. I plan on the Denso's run at an .030 gap. I will post after I try them.


