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car misfires at high RPM

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Old Jan 29, 2015 | 07:16 PM
  #1  
evo8-1479's Avatar
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From: georgia
car misfires at high RPM

alright so here is the deal i was trying to go from 2nd gear to 3rd gear wide open throttle but instead it shifted back into 1st from wide open throttle in 2nd and car reved out to 9000RPM. so here is the deal i heard it could be bent valves but they car runs perfect and great but when you add boost and get to a higher rpm car looses power and bust up really bad i can't figure out what is going on HELP PLEASE

i did a compression test here is what i got

cylinder 1 - 140
cylinder 2 - 150
cylinder 3 - 138
cylinder 4 - 150
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Old Jan 30, 2015 | 01:18 PM
  #2  
Ev0ikon's Avatar
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From: 3rd Rock {from = sun}
As I said on previous post. You now need to do a leak down test to pinpoint where the problem may be.
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Old Jan 30, 2015 | 02:50 PM
  #3  
RussellDaniel's Avatar
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From: hinesville
Hey jordan! Go ahead and build that 2.3
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Old Jan 30, 2015 | 06:36 PM
  #4  
slvrevo84's Avatar
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From: colorado
check/replace your spark plugs first as I had break up in high boost but ran fine other wise.. if that doesnt help than ya you probably bent a valve and its leaking..
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