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b17a1 compression

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Old Feb 24, 2014 | 12:54 PM
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Default b17a1 compression
So I ran a test On my b17a1 and got 150 across the board. Should I be worried? Seems a tad low to me. Thanks in advance
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Old Feb 24, 2014 | 01:10 PM
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Default Re: b17a1 compression
as long as it's consistent i wouldn't worry too much. was the throttle all the way open?
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Old Feb 24, 2014 | 01:12 PM
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Default Re: b17a1 compression
No didnt touch the throttle, does that make a difference? And also I believe that the valve seals are getting worn because it smokes a little after vtec
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Old Feb 24, 2014 | 04:53 PM
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Default Re: b17a1 compression
Do it again with the engine at operating temp with the throttle all the way open
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Old Feb 25, 2014 | 06:02 AM
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Default Re: b17a1 compression
Originally Posted by doood
Do it again with the engine at operating temp with the throttle all the way open
Alright sounds good, ill see what happens, should I just be worried about inconsistent numbers? Thank you
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Old Feb 25, 2014 | 06:13 AM
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Default Re: b17a1 compression
the engine can't make any compression if it can't get air in. that's why the throttle has to be wide open.
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Old Mar 1, 2014 | 08:16 AM
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Default Re: b17a1 compression
Finally got around to re doing the test and got 205psi in all cylinders, much better than 150! Thanks everyone!
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