1990 T.R. COMPRESSION TEST

  • Tiny
  • jeffcoinc
  • 1990 Ferrari Testarossa
  • V12
  • 2WD
  • 36,000 miles

What should the compression reading be per cylinder on a 90 t.R.

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Tuesday, March 22nd, 2011 AT 3:29 AM

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  • Tiny
  • Packy J
  • Member

Did you ever find out? I'd say a minimum of about 150-160psi but cylinder variance is more important. Its based on compression ration, a '90 shouldn't be to high though. Its not likely all the cylinders are bad, if any, so the highest is probably very accurate, they should be within about 10-15 psi of each other.

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Thursday, December 29th, 2011 AT 6:15 PM

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