Rate my oil filter (is it good or bad?)
08-13-2021, 12:30 AM
#18
Bore score on 987.1’s isn’t an issue.
08-13-2021, 10:05 PM
#19
Instructor
08-14-2021, 09:46 AM
#20
Nordschleife Master
Join Date: Oct 2015
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Only on the base model 2.7L engine, not the S model. The S model engines in the Boxster/Cayman are showing a trend of scoring cases just the like the 911 variants in the M9X family.
And for the record, it doesn't mean you'll never see bore scoring on a 2.7L, it just means that they have shown to be less susceptible to cylinder bore scoring and the main reason is the piston composition.
And for the record, it doesn't mean you'll never see bore scoring on a 2.7L, it just means that they have shown to be less susceptible to cylinder bore scoring and the main reason is the piston composition.
08-14-2021, 10:50 AM
#21
Rennlist Member
Only on the base model 2.7L engine, not the S model. The S model engines in the Boxster/Cayman are showing a trend of scoring cases just the like the 911 variants in the M9X family.
And for the record, it doesn't mean you'll never see bore scoring on a 2.7L, it just means that they have shown to be less susceptible to cylinder bore scoring and the main reason is the piston composition.
And for the record, it doesn't mean you'll never see bore scoring on a 2.7L, it just means that they have shown to be less susceptible to cylinder bore scoring and the main reason is the piston composition.
Beautiful math, if you will.
Last edited by Snakebit; 08-14-2021 at 10:51 AM.
08-14-2021, 03:31 PM
#22
Nordschleife Master
Join Date: Oct 2015
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I agree that the piston composition gets a lot of credit on forums for the reason that the 2.7 has this issue so rarely, but there's another aspect that makes a lot of sense when I was told by a flat6 builder. He stated that the motor is basically square at that size (2.7) and so the geometry on the piston stroke is different enough along with the piston being understressed relative to the bigger motor(s). Or in layman's terms, the piston in the 2.7 has a less stressful life. In fact being basically a "square" motor, it's the dream life for a piston. Beautiful math, if you will.
Beautiful math, if you will.
