Boosted engine break-in

[Blown353]

I'm with Jody, no "black magic boosted taboo" break in is needed, leave the blower connected. If you have a flat tappet cam you had best do the 2000-2500 rpm for 20 minutes routine. If you're running roller, you don't need the lifter break in routine so start it up, make sure everything is in order, maybe let it high idle at 1500-2000 rpm for 5 or 10 minutes to make sure everything is working, timing is OK, oil pressure is OK, there are no leaks, get it tuned well enough then go drive it. I do easy short trips for the first 3-4 times for things to heat cycle everything then go back and retorque stuff (intake, headers, etc). After than I start driving harder (getting into the boost, but not beating on it and staying under ~5K rpm) for the first 50 miles or so. Then I change the oil, cut open the filter and look, and if things look good put fresh oil in and go out and beat on it.



:3gears:

Oh, and I probably don't need to say it, but don't go doing anything stupid when the engine is cold! Let the coolant and more importantly the oil warm up before you go thrashing on it.