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Cylinder Leakdown accept %? #81577 06/29/08 01:20 PM 06/29/08 01:20 PM
Joined: Apr 2008 Posts: 1,195 Snowing in the north! D Dart 340 OP moparts member
Dart 340 OP moparts member D Joined: Apr 2008 Posts: 1,195 Snowing in the north!	Is there a rule of thumb for acceptable leak down pressures? I am within 10% on all 8.

Re: Cylinder Leakdown accept %? [Re: Dart 340] #81578 06/29/08 02:06 PM 06/29/08 02:06 PM
Joined: Apr 2008 Posts: 1,195 Snowing in the north! D Dart 340 OP moparts member
Dart 340 OP moparts member D Joined: Apr 2008 Posts: 1,195 Snowing in the north!	anyone?

Re: Cylinder Leakdown accept %? [Re: Dart 340] #81579 06/29/08 02:17 PM 06/29/08 02:17 PM
Joined: Mar 2004 Posts: 531 SE Michigan F farmington mopar addict
farmington mopar addict F Joined: Mar 2004 Posts: 531 SE Michigan	If its a true street car you're AOK. If its a racer that you're looking for those last 7 horsepower, time for some work. You'd have to spend quite a lot for very little gain.

Re: Cylinder Leakdown accept %? [Re: farmington] #81580 06/29/08 08:45 PM 06/29/08 08:45 PM
Joined: Jan 2003 Posts: 1,278 Mission BC 10sec440 pro stock
10sec440 pro stock Joined: Jan 2003 Posts: 1,278 Mission BC	Generally speaking, under 12% leakdown is ok. 5% is good and under 5% is excellent.

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