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Old May 13, 2009 | 04:59 PM
  #61  
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From: Virginia Beach, Virginia
Originally Posted by silver9mr
boost leak test i have not done but i would think al would have told me if i had one or no cuz my car holds boost fine.

and compression test is 125 across all 4
that's pretty low, is that on a cold motor?
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Old May 13, 2009 | 05:14 PM
  #62  
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From: lowell,MA
Originally Posted by Mellon Tuning
that's pretty low, is that on a cold motor?
no it was not cold but i was assured that that # is not bad because it was a consistant #
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Old May 13, 2009 | 05:17 PM
  #63  
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From: CT
Originally Posted by silver9mr
lol how far into ct
PM'ed
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Old May 13, 2009 | 05:22 PM
  #64  
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From: Virginia Beach, Virginia
Originally Posted by silver9mr
no it was not cold but i was assured that that # is not bad because it was a consistant #
I'm sorry to inform you that 125 is not very good...next time, put a teaspoon of clean oil on top of the piston and check the compression again on a warm motor...if the compression shoots way up towards 155 or so, then you'll know the rings are likely worn.

you can still make good power on a low compression motor but you'll need a lot of turbo to make up for it.
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Old May 13, 2009 | 05:26 PM
  #65  
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Originally Posted by Mellon Tuning
I'm sorry to inform you that 125 is not very good...next time, put a teaspoon of clean oil on top of the piston and check the compression again on a warm motor...if the compression shoots way up towards 155 or so, then you'll know the rings are likely worn.

you can still make good power on a low compression motor but you'll need a lot of turbo to make up for it.

I agree.

Consistant or not, those numbers are low for a stock motor. Some times compression number vary from tester to tester so I would sugguest you do another test with another gauge with the car warm.

Another thing is, i do not know why people are quick to run to a dyno and not make sure the car is in tip top shape before going. Don't you people know you are throwing your money in the garbage??
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Old May 14, 2009 | 12:46 AM
  #66  
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From: long island,ny
Originally Posted by Mellon Tuning
that's pretty low, is that on a cold motor?
Mivec?
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Old May 14, 2009 | 12:48 AM
  #67  
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From: long island,ny
Originally Posted by Remy
I agree.

Consistant or not, those numbers are low for a stock motor. Some times compression number vary from tester to tester so I would sugguest you do another test with another gauge with the car warm.

Another thing is, i do not know why people are quick to run to a dyno and not make sure the car is in tip top shape before going. Don't you people know you are throwing your money in the garbage??
Some of the less informed guys think a tune is the end-all to getting the car right,,,, Not everyone has your dsm skills Remy!!!...lol
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Old May 14, 2009 | 04:09 AM
  #68  
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From: Virginia Beach, Virginia
timing belt could be off too I suppose...either way, it needs attention.
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Old May 14, 2009 | 04:45 AM
  #69  
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From: lowell,MA
Originally Posted by Remy
I agree.

Consistant or not, those numbers are low for a stock motor. Some times compression number vary from tester to tester so I would sugguest you do another test with another gauge with the car warm.

Another thing is, i do not know why people are quick to run to a dyno and not make sure the car is in tip top shape before going. Don't you people know you are throwing your money in the garbage??
hey come on be easy with me im an electrician not a mechanic lol i didnt know befor i went for a tune that my compression was at that # or that their "may" be a possibility that my timming is off, the only way id ever know is if my car could talk to me hahaha so this is a few things imma have to look into now and thnaks for bringing it to my attention becaouse id never of think of looking at those factors cause my car runs fine while driving normal.
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Old May 14, 2009 | 04:47 AM
  #70  
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From: lowell,MA
Originally Posted by Mellon Tuning
I'm sorry to inform you that 125 is not very good...next time, put a teaspoon of clean oil on top of the piston and check the compression again on a warm motor...if the compression shoots way up towards 155 or so, then you'll know the rings are likely worn.

you can still make good power on a low compression motor but you'll need a lot of turbo to make up for it.
what would the teaspoon of oil do if i compression test with it?
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Old May 14, 2009 | 04:47 AM
  #71  
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there's no shame in not knowing that, most people aren't born with the knowledge I'm pretty sure but now you know and you can't look into.
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Old May 14, 2009 | 04:48 AM
  #72  
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Originally Posted by silver9mr
what would the teaspoon of oil do if i compression test with it?
it would temporarily help seal any gaps around the piston rings if they are worn or there are grooves in the cylinder walls. If there's little to no change in compression before and after the oil trick, that would indicate to me that the rings are fine and the issue is elsewhere.

Last edited by Mellon Racing; May 14, 2009 at 04:53 AM.
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Old May 14, 2009 | 04:50 AM
  #73  
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From: MA
Tony, Who did your compression test? I'm thinking of having one done before I go to Ivey or I'm just gonna have it done at Ivey. I'm gonna schedule the appointment today.
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Old May 14, 2009 | 05:02 AM
  #74  
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From: lowell,MA
Originally Posted by Mellon Tuning
it would temporarily help seal any gaps around the piston rings if they are worn or there are grooves in the cylinder walls. If there's little to no change in compression before and after the oil trick, that would indicate to me that the rings are fine and the issue is elsewhere.
ok dumb question for you but iv never done that but how would i go about putting oil on my piston? poor the teaspoon amount through the spark plug hole?
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Old May 14, 2009 | 05:03 AM
  #75  
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From: Virginia Beach, Virginia
Originally Posted by silver9mr
ok dumb question for you but iv never done that but how would i go about putting oil on my piston? poor the teaspoon amount through the spark plug hole?
yep, it's a simple as that, but you may want to find a good tutorial so you don't miss a step.
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