Additional Power After Break-in?
1 - 20 of 20 Posts
I assume that's from a dyno test. I only have about 800 miles on mine but have edged up to around 6K rpm for a short period--you can definitely feel the power come on compared to 4K and below.
Interesting you mention the oil issue. I think I read on this forum with the earlier engines that it is not unusual to see a drop in oil level in the first 1K miles---I'm approaching that and it's at the full level. If I was at 9K it would make me a little nervous in that the mechanic at the dealership mentioned they had only one with an oil sensor failure that showed full but ultimately was low and burned up the engine. Having said that the new engine is a different design.
Joined
·
71 Posts
At 1,500 hundred miles, I noticed a distinct change in the car. Everything seemed to loosen up and the engine felt more free-revving. In other thread, someone actually suggested that Porsche had engineered some features into the DME that protects the car during the break-in period. I don't really know about that, but it does seem to get smoother with age.
Same here for my 07 CS. Keep the RPM's in the 2800-3000 range for the best power in normal driving.
Joined
·
1,502 Posts
I'm getting better fuel economy now on the CS than my 2007 Golf GTI DFI :crazy:
Joined
·
570 Posts
6K miles with a couple of track days on my '09 CS. Car needed 1/4 qt right when i bought it (maybe they were being careful not to overfill on the PDI?). No oil consumption at all since. The engine definitely is feeling stronger with more miles. Love this car.
Joined
·
358 Posts
I'm a great believer in the placebo effect, and that actually taking measurements (e.g., on a dyno) is hard work and not something we people are inclined to do. That said, I suppose it's possible the engine has loosened up a little but without a dyno reading, the scientist/engineer in me assumes that it's all our heads 
Joined
·
2,563 Posts
I would agree........smoother and more flexible power delivery. I also think I saw a bit better fuel mileage on my daily commute, running in the same amount of traffic.
It's reduced friction of all the bearing surfaces in the drivetrain and better
sealing of the cylinder/piston interface which gets smoothed out after the
first few hours of running.
When you're breaking in the engine you want to slowly vary the RPM range
and dynamic pressure levels in the cylinders, slowly increaing both over
time. You don't want to get to upper RPM ranges or higher pressures until
over 1000 miles. It helps to do this in very low or ideally no traffic because
you can speed up and slow down without bothering anyone and to your
liking. THe breakin procedure in the manual is just about the worst thing
you can do because if you do what it says, the first time the engine sees
4000, 5000, 6000, 7000, and redline is all at the same time. Very bad.
And it says nothing about cylinder pressure levels (=torque, really). But
the published break-in procedure is too complicated for most. So a proper
one would make everyone get really confused.
I broke in a bike once very
carefully - the first 1000 miles each ride was planned what I would do and
I drove it in sparse traffic so I could achieve what I wanted. Contrast with
a friend who bought an identical bike at the same time. His first act while
riding was to pin his throttle at about 800 RPM and he was redlining his
bike in the first couple miles. Months later he could never beat me in a drag
race, even if he had a better launch. My bike would just walk away from
his every single time.
1 - 20 of 20 Posts
Join the discussion
