Originally posted by jhigga15
How should I break it in, I have been reading all of this stuff to bring it up to HIGH RPMs...I have been breaking in engines by letting them idol, should I open it up when I do the Break in?
This is what Rody Roem (owner of RB) suggests as a Break-In method for his engines. Follow carefully his instructions and you'll have a good engine:
This is what Rody said about this method of WOt Break-In on a Break-In bench with a 7X4 propeller on the motor.
BTW Serpent sells that bench.
"Before you start to run in an engine I suggest you cover the cooling-head with something so the engine heats-up properly(without the cover the engine will stay too cold).
Then start the engine and let it run with the HSN very rich at full throttle (WOT) but avoiding 4 stroking for:
2-tanks at a temperature of about 80°C.
Then 2 more tanks at 90°C.
Then 1 more tank at 100°C.
After this your engine is almost run-in, however you need to finish the rest of the running-in in the car at the track for about 2 more tanks and you are then ready to go.
With the engine at full-throttle (WOT), you are asuring that the idle needle is not in front of the spraybar and so you are running the engine really on the setting of the main-needle and so are also sure the engine will run rich.
Also more fuel/air will go through the engine with full throttle so a better lubrification.”
And I may add that the first two tanks be done "Heat Cycling" every 2 to 3 minutes, and after every full tank afterwards, you let the engine cool down completely before restarting (Heat Cycle).