Originally Posted by
jersey
Another club member at my track got a barely used car with grp engine. It’s his first nitro track car and I’m gonna tune it for him. I was wondering what plugs does this engine take that it will run good and not strip the head button due to different threads.
looking for plugs that are available preferably in USA.
read a couple different things throughout this post.
For anyone that ran this engine help is appreciated thanks
I believe GRP made their own, as well as to other brands, but I can't recall which. Just look at the plug to see that the threads doesn't bottom out, some is threaded all the way and others isn't, make sure it seats well as well.
If nothing else maybe you could send a PM to Rody (believe he's called VS Racing here now) as his Tecnopower engines was based on this design, maybe he at least knows what doesn't work.