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i was looking through a forum for 1/8th scale rc car racers and read a good tip i thought we could all use. if you have a tuned pipe with a dent in it, plug the stinger and pressure fitting, fill with water and prop up in the freezer with header end up. allow it to freeze and it will push the...

irwin (cooper) .21 "rpm" pipe length i recently purchased the .21 "rpm" pipe from cooper, formerly irwin. i will be using it with a nova rossi header on an o.s. rz-m that has been warmed up a bit. anybody have experience with this pipe? how much should i cut off the header for starters? thanks

i have noticed that a "standard" o.s. glow plug is a couple millimeters shorter than a mccoy mc9 plug. the question that arrises as being the o.s. head button is designed with the o.s. plug length in mind, should i put 2 copper washers on a mccoy plug to raise the plug so it potrudes the same...

any tips for using k&b ultrapoxy? thanks

who has experience with this? results? problems?

i am prepping a new o.s. o/b i picked up for dirt cheap at our local hobby shop. while i know i should sharpen the leading edge of the skeg and keep the trailing edge square, im not sure what to do with the bottom of the skeg. it comes from the factory flat. should i leave it or should i sharpen...