Originally Posted by
Maximo
The OD99 may work, as I have some guys who have used them...however in the higher compression modifieds they tend to wear our pretty quickly.. I think the filaments are maybe a little too thin for the applicationm, the OS plugs seem to be built a little beefier and seem to last a fair bit better....But the OD99 is definitely a step in the right direction and at least worth trying...However I may be speaking a little off base, as I have no experience with the JS engine...JPalesi is the guy to know for sure if the OD99 is compatible.....
on a main the p4 is 7 bucks so its 2 bucks more... lol... anyways, on a side note..
i run od 97t in my alpha engines. one plug was used to break in one motor then went about a gallon after that.
and is now in my other alpha that is being broken in. but i am changing it out before i start race tuning it..
i have had GREAT luck with the odonnell plugs lasting a while..
it dose not mean that os plugs are any less though. i just have motors that run well on the cheaper plugs..