Break In Period?

GT-R man

break in periods are not there so your car can produce higher RPMs break in are for making your car last longer.. yes engines that are abused from day one will have a tendency to put out more power due to the computer systems in the car such as VVT system will learn the way the owner drives and when it comes testing time it will replicate the way the driver uses the car. If someone babies that car the computer will do the same on the test because it is used to using less power and making better MPG... does this sound logical to anyone? I would hope so

JoeyD

Higher RPMs? I'm pretty sure that regardless of how your cars computer learns your driving style when you push the pedal all the way down the same thing happens. I won't go in to open loop vs. closed loop because I don't know where the ECM makes the switch on this car. But, in your car that has been babbied carbon deposits are EVERYWHERE (robbing power and economy). Higer revs means more, faster air moving through the engine. This keeps things cleaner and working better. Maybe the cummulative load of driving like you stole it over say 100K miles might weaken something like a connecting rod or valve spring but probably not to the point of failure.

Anyway the reason that engines that have been driven hard make more power at WOT (there is only one WOT setting regardless of if you drive like grandma) is because the motor is clean(er).

Studdies have proven that the ideal engine RPM for longevity is 1500. So if longevity is all you care about enjoy driving your new 40K sports car like a lawnmower.

That being said it won't hurt anything to obey the published break in procedure. It will give you peace of mind and a chance to learn your new car. If you shorten it up a bit it's at your own risk but odds are it won't hurt anything.

I remember reading horror storries about Evo's not breaking in properly and leaking constantly. But I never came accross anything like that on a VQ.

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When was the last time you did 230MPH in something with 4 seats?

WShade

As a prior Mitsubishi owner, they leak as a brand due to improper engineering

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Q50S
Q60 RS400

bboypuertoroc

Yeah not quite. I have not one leak and I beat the **** out of my Evo.

On topic, your engine is broken in the first time it warms up. The only reason you should be easy on the car when it's brand new is because the clutch needs to be broken in.

I beat the piss out of my Evo on it's maiden voyage (test drive with 2.3 miles on the clock)... had it up to 150mph and launched it four times. The only issue I've had with the car in 42,000 miles is that I smoked my stock clutch at 8,000 miles due to a bad launch.

Don't be scared to run it like you plan to during the so-called break-in period. Just be mindful of your clutch.

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zero

I didn't know ECU has the AI capability.

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