fi new motor break in ?
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chronic masturbator
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Joined: Dec 2003
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From: massillon, ohio
fi new motor break in ? well my new engine should be finished by the weekend (ls1speed) 
and was wonder what some of you guys did for break in. I was thinking maybe waiting to put the charger on, to keep the pressure off the rings until they break in, maybe im a worry wart but ahwell better safe then sorry also on a side note the xb-1a system might be for sale soon so i can swap over to a f1 ati setup.
thanks
gary
and was wonder what some of you guys did for break in. I was thinking maybe waiting to put the charger on, to keep the pressure off the rings until they break in, maybe im a worry wart but ahwell better safe then sorry also on a side note the xb-1a system might be for sale soon so i can swap over to a f1 ati setup.thanks
gary
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Originally Posted by Pro Stock John
We dynoed my car with like 3 miles on it. I don't use any oil. I have a LS1 Speed 348ci with Diamond 6.0 heads.
modern ring sets seat nearly instantly.. I put my new motor in my car, ran it for about 20 minutes under varying RPM and light load, changed the oil, and went out to beat on it.. 13k miles later its still perfect Granted its a mild street/nitrous motor, but same principles apply.
Granted its a mild street/nitrous motor, but same principles apply. 
TECH Senior Member
Joined: Nov 2001
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From: Chi-Town, IL
Yea, we put about 10-15 miles on my motor before ripping it on the dyno w/the supercharger, I've put more miles on the motor since, probably under 1000 total....
The oil and plugs are changed and its ready to hit the dyno as soon as I get my pulleys in the mail
The oil and plugs are changed and its ready to hit the dyno as soon as I get my pulleys in the mail
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I ran Pennsoil for the inital 20 minutes (throw-away oil), Castrol 10W40 for the first 1k miles, then switched to Mobil 1 10W30. Been running that ever since. I'll be switching to 15W40 soon for the summer months.