Engine break in controversy
- Thread starter KillrV6
- Start date
Before putting too much weight on what a Net Expert says, talk to you machinist, if your having an engine built.
While he talks about 300 engines, that's hardly a days work for some of the Detroit plants. With the EPA mandate now stretched to 100K miles, I'd tend to believe they have taken the time to figure things out for what makes for a good long term engine life.
Like so many articles there is some truth in what he says, but some of it is mere opinion.
While he talks about 300 engines, that's hardly a days work for some of the Detroit plants. With the EPA mandate now stretched to 100K miles, I'd tend to believe they have taken the time to figure things out for what makes for a good long term engine life.
Like so many articles there is some truth in what he says, but some of it is mere opinion.
My machine shop (in biz for 40 years) said if you are using a flat tappet cam to bring it up to 2,000rpm immediately and then cycle it up and down to 3,000rpm repeatedly for 20-30 minutes for proper cam break in. Crank splash lubes the cam.
Immediately thereafter they said to take the car out and make boost controlling the level with your foot (around 10psi). Don't go WOT but 1/2-3/4 throttle accelerating and not taking the engine over 4,000 or so. They said to do this 10 times or so. They said when you make boost those rings will seal very quickly. In addition they did mention that downshifting during decelleration can be a good idea to lube the top end as well but that was after I brought it up. Change oil after doing this.
Then they said take it easy on the motor for 500 miles and don't rev it over 4500rpm or so and don't take long sustained RPM trips.
This has worked for me.
-GNX7
Immediately thereafter they said to take the car out and make boost controlling the level with your foot (around 10psi). Don't go WOT but 1/2-3/4 throttle accelerating and not taking the engine over 4,000 or so. They said to do this 10 times or so. They said when you make boost those rings will seal very quickly. In addition they did mention that downshifting during decelleration can be a good idea to lube the top end as well but that was after I brought it up. Change oil after doing this.
Then they said take it easy on the motor for 500 miles and don't rev it over 4500rpm or so and don't take long sustained RPM trips.
This has worked for me.
-GNX7
