2005-2014 Mustangs Discussions on the latest S197 model Mustangs from Ford.

new short block help

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Old Sep 18, 2010 | 05:22 AM
  #11  
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graygt07
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its the 302 forged sb from JDM with 9.8 cr.
I drive the car 1005 miles then changed the oil ran another 200 had it tuned then put 500 more and tuned again.
Old Sep 18, 2010 | 06:01 AM
  #12  
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How did you break it in???
Old Sep 18, 2010 | 01:06 PM
  #13  
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Sounds like the piston rings.
Old Sep 18, 2010 | 04:43 PM
  #14  
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broke it by starting it and letting it run 15 minutes checking everything and making sure things were good. Then i drove it around town for 50 miles. Then drove mostly in town but some highway miles. For the first 800 miles never saw boost. From 800 to just over 1000 miles i saw 2# boost twice for about 3 seconds.I used vr1 oil with high zinc. Just as JDM asked.
Old Sep 18, 2010 | 09:08 PM
  #15  
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Did you change the oil after the 15 minute burn in session?
Old Sep 18, 2010 | 09:33 PM
  #16  
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really sounds like 2 problems man.

White smoke screams water, and thus head gasket.

Oil soaked plugs indicate bad piston rings.... OR if your lucky.... do you have a catch can installed? with that much boost you might as well be squirting oil down your valves.
Old Sep 19, 2010 | 07:51 AM
  #17  
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didnt change the oil after the 15 minutes. JDM said that is not needed.
no i dont have a catch can
Old Sep 19, 2010 | 09:46 AM
  #18  
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Originally Posted by graygt07
didnt change the oil after the 15 minutes. JDM said that is not needed.
no i dont have a catch can
Well with that amount of boost, the oil on the plugs could easily be associated with not having one. I can not believe no one has told you to get one with the money you have put into that, or the power level your at. A stock car will pass oil back to the intake, any boosted application should have one, and the higher boost you go, the more oil is going to come back in your intake. I'm leaning toward head gasket caused the white smoke, and plugs MAY be coincidental, that were only found cause you went looking.
Old Sep 19, 2010 | 12:29 PM
  #19  
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graygt07
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i hope that is the case
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