compression and stuff

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Jul 14, 2003 | 04:26 PM

dubster

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compression and stuff

Does anyone know what the compression should be on a B16A with JE "Blower" pistons. This is in a 2000 civic si. All four cylinders are showing 125psi. This sees to be a bit low. The motor is not sleeved and has gapless rings in it. Any ideas?
-Chris

Jul 14, 2003 | 05:23 PM

dubcac

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From: Westside til I die

Name stealer!!!

h:

Anyways, are you sure you are performing the test correctly? ECU fuse out, throttle held wide open? Gauge is tightened all the way down?

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Jul 14, 2003 | 05:35 PM

dubster

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The ecu isn't controlling the engine anymore...that is left up to an eletromotive TEC3. The TEC3 was disabled but the throttle was not wide open. The tester was seated fully.
-Chris

Jul 14, 2003 | 11:27 PM

dubcac

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From: Westside til I die

Hold the throttle wide open, and do the test over.

Jul 14, 2003 | 11:43 PM

qtiger

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Either those are incorrect numbers or else you get to pull a head! Yay!

Jul 15, 2003 | 05:51 AM

westcoaststyle

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From: CO

My JE/SRP 9.5:1 put out 187psi in all cylinders.
don't know what you should be pushing. Why not call JE and ask them.

Jul 15, 2003 | 08:34 AM

dubster

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the compression is 8.3:1 to be more turbo friendly and allow for high boost levels so I would assume that this would also mean that the reading would be lower but I am not sure how much.