Quote:
Originally Posted by nastynate_03
they told me to beat on mine from the get go  but every builder has their own opinion. mmr said 1000 miles??? ask m1m hell set you straight on how to help seal the valves and what not. thanks
nate |
JPC, in Maryland, pulled my car apart and put it back together. I asked Justin (owner/racer) what the break in was? He just smiled a bit then told me it was already broken in and it's good to go. They did a couple of oil changes, threw it on the dyno, did some data logging when they test drove it a bunch etc.
Quote:
Originally Posted by Scott McClure
That was a big mistake. When breaking in a new motor you never want to use any kind of synthetic or synthetic blend. Mineral oil for 500 miles would be a better decision. And I beat on mine from the get go.
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My shop put regular 5w30 oil in it now and later on I could go full synthetics if I wanted.