wheelhead

iTrader: (1)

I have an sts.12rs and looking for some help on witch plug i should use. I think a had a os5r in it but not sure. The plug is all black. Just got a race coming up and want to get some new plugs for it. Any help would be great.

rcdude69

iTrader: (17)

As a rule of thumb, the higher the nitro content the cooler the plug. If your running 30% nitro you'll want to run a med. to med. cold plug. Run a plug that is too far down on the cold scale and you'll have trouble with idling and getting it tuned properly. Running a plug that is too hot and you'll have detonation problems. If the detonation is severe enough, it will burn a hole in the piston. You can also fudge a little in either direction depending on the weather conditions. I prefer to run a med. plug because the engine idles and tunes good plus it doesn't cause detonation problems

wheelhead

iTrader: (1)

As of right now its running on traxxas topfuel 33 but it will be going to sidewinder race blen 20 after that. Iwas was wondering if i should go if a short plug like the os's or a mcoy8/9 plug. Ido live in Michigan were the temp can get into the 90's too