anybody know the compretion 5.7 hemi???
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Joined: Oct 2003
Posts: 406
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From: NW Florida
RE: anybody know the compretion 5.7 hemi???
If you're asking for compression ratio it is 9.6:1
If you're wanting to check for combustion pressure leakage try this:
Calibrate the tester according to the manufacturer’s instructions. The shop air source for testing
should maintain 483 kPa (70 psi) minimum, 1,379 kPa (200 psi) maximum and 552 kPa (80 psi)
recommended. (7) Perform the test procedures on each cylinder according to the tester
manufacturer’s instructions. Set piston of cylinder to be tested at TDC compression, While testing,
listen for pressurized air escaping through the throttle body, tailpipe and oil filler cap opening.
Check for bubbles in the radiator coolant. All gauge pressure indications should be equal, with no
more than 25% leakage. FOR EXAMPLE: At 552 kPa (80 psi) input pressure, a minimum of 414 kPa
(60 psi) should be maintained in the cylinder.
The rearend is 9.25"
If you're wanting to check for combustion pressure leakage try this:
Calibrate the tester according to the manufacturer’s instructions. The shop air source for testing
should maintain 483 kPa (70 psi) minimum, 1,379 kPa (200 psi) maximum and 552 kPa (80 psi)
recommended. (7) Perform the test procedures on each cylinder according to the tester
manufacturer’s instructions. Set piston of cylinder to be tested at TDC compression, While testing,
listen for pressurized air escaping through the throttle body, tailpipe and oil filler cap opening.
Check for bubbles in the radiator coolant. All gauge pressure indications should be equal, with no
more than 25% leakage. FOR EXAMPLE: At 552 kPa (80 psi) input pressure, a minimum of 414 kPa
(60 psi) should be maintained in the cylinder.
The rearend is 9.25"
