so 6 years after my upgreades (stage 3) i felt that the car was not pulling as it should (58000 km on the clock)
i went for a dyno run and the result was dissapointing
220hp at 5750rpm and then the chaos
the diagram was awful with many ups and downs
after valve cleaning with soda blasting and new spark plugs i visited the same dyno
260hp at 6500rpm (50hp more!! than before) full power at high revs, much much better diagram everywhere
in a few words a much faster car from 2000rpm till 7000rpm!!!
from my experience everyone should clean the valves at 50000km the most
it makes a great difference
i went for a dyno run and the result was dissapointing
220hp at 5750rpm and then the chaos
the diagram was awful with many ups and downs
after valve cleaning with soda blasting and new spark plugs i visited the same dyno
260hp at 6500rpm (50hp more!! than before) full power at high revs, much much better diagram everywhere
in a few words a much faster car from 2000rpm till 7000rpm!!!
from my experience everyone should clean the valves at 50000km the most
it makes a great difference