Hey all, I run a rb ws7 in utah and am looking for the best glow plug. The air temp is 75 @ 8 am and is 95 @ 100 pm. The humidity is 20-30%. Any suggestions? Thanxxx for your help!

The ws7 is a standard plug right. I would use a McCoy mc-8.

Turbo Plug.

The OS P3 is the best plug for them, but you can't switch back to NR plugs.

Why is that? Does the O.S. plug re thread the head button or something?

i didn't know they made a new ws7. my bad. if it's a turbo I would run a Novarossi c6tgc.

Odonnell 99 plug works well.

The OS plug is beveled a hair different. If you use an OS plug your fine, but when you switch back to NR or RB plugs, the head will leak.

I don't know why anyone would switch back to anything other than an OS plug though.