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Join Date: Sep 2001
Posts: 265
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What Compression Numbers for the Turbo?
What are the numbers for the turbo compression when it came out of the factory? What are some good numbers to have? Thanks a head of time.
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09-08-2002, 09:53 AM
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around 150 in a healthy engine.
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09-08-2002, 01:45 PM
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Registered
Join Date: Feb 2001
Location: Viera FL
Posts: 5,642
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144 - 152 PSI
AFJuvat
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Es geht nicht darum wie schnell man faehrt, sondern wie gut man schnell fahren kann. Ihr Brunnen der nutzlosen Porsche Information |
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09-08-2002, 02:51 PM
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Registered
Join Date: May 2002
Location: North Carolina
Posts: 123
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If you go by the shop manual it's 10 bar or greater for a fresh engine (145 psi). However, I've compression checked a lot of 944 Turbos and I've never seen anything greater than 135 psi even on a fresh engine. However, on a fresh engine compression numbers will normally improve as the rings become fully seated. From my experience anything greater than 120 psi is acceptable.
The factory wear limit for compression is 6.5 bar (94.3 psi). Regards, Fletch
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Clark Fletcher 1986 2.8L 951 Clark's Garage http://www.clarks-garage.com |
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09-08-2002, 02:53 PM
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1986 superior water-cooled porsche 951 2.5
