Just bought OFNA hyper 7 PBS from a friend. He has pushed 2 tanks of fuel through it but he doesn't remember what brand or % it was. He has only really run it through running idle I should imagine & it still needs a full break in by the sounds of it.
My questions are......what advice would anyone have for the fuel I should use, given the circumstances above? Is it safe to choose a good brand at say....25-30%, given that it has already had an unknown % & brand through the engine. Can I start the break in process off again from scratch, as it were, with 25-30% byron?
Any advice would be appreciated as the motor is aparantly a high performance & must be handled with care!
It will not be a problem running 25-30% in the engine. And go ahead and start the whole break in over if you like it won't hurt it. And I'd go by the engine manufactures break in procedure. Many like the heat cycle method as do I but sounds like your first nitro so go by the book. You should be able to find the engine on towers website, then go to the manufacturer page and should be able to find a manual for it to read or download.