True Horsepower of 991.2?
10-13-2015, 05:13 AM
#16
I read that the European manufacturers' horsepower rating rules allow you to rate an engine with some negative and positive tolerances (say if the engine is rated at 100 BHP any individual engine tested could be anywhere from 98 to 105 BHP for example and still meet the 100 BHP rating).
The same article I think said Porsche picks their rating point so that no engine tested will be below that power level. So in the example above Porsche would have rated that engine at 98 BHP and not 100 BHP (so their rating point has no negative tolerance, every tested engine would meet or exceed the factory power rating). This way they don't get dissatisfied owners saying their car's engine doesn't meet the factory rating.
The same article I think said Porsche picks their rating point so that no engine tested will be below that power level. So in the example above Porsche would have rated that engine at 98 BHP and not 100 BHP (so their rating point has no negative tolerance, every tested engine would meet or exceed the factory power rating). This way they don't get dissatisfied owners saying their car's engine doesn't meet the factory rating.
do your math.
10-13-2015, 09:07 AM
#17
Racer
I didn't have the exact standard in front of me so I couldn't quote it correctly so i used an EXAMPLE to show how the rating could have a negative tolerance but Porsche chooses not to rate their engines with a negative tolerance.
10-13-2015, 06:00 PM
#19
Racer
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Yes, it does not really matter much.
We were just thinking that if BMW M3's 3.0L turbo engine can produce 460HP, Porsche 991's 3.0L turbo engine would be able to match that output.
