Quick question: running in a new engine
 

10 years ago when I bought my first and only scoob (2002 bugeye STi) I had to run the engine in for the first 1,000 kilometres. I seem to remember I wasn't supposed to exceed 4000 rpm.

Does anyone know if this is still the case for 2011/2012 STi's? Or has engine technology moved on sufficiently that this is no longer required?

Thanks in advance.

Hello Stranger :)

Thats still the case I believe, certainly was with my WRXD. Will point a friendly Subaru techie at this thread for you.

I thought it was 1000 miles not 1000km which is only 620 miles.

Hi Simon :) Yeah it's been a while since I was in this corner of the interweb! It's still the place to go for answers...If you had to run in your WRX then it's almost certain to be the same for the new ones.

@Chopperman, you could be right and maybe I did 1500kms or so before the first service. I'll look in the log book later.

Cheers!

Built my new engine and run it in on a dyno at WG pressure for 50-100 miles, dropped the oil, changed filter, and then threw some boost through it to bed the rings in.

Been fine so far running at 500+

Usually Run them up to 4000 rpm varied throttle and load for 1000 miles, drop the oil then open the taps

Like it.

run it in WOT :norty:

http://www.mototuneusa.com/break_in_secrets.htm

Thanks a lot guys! Much appreciated.

same here, my builder told me the same, boost helps the rings bed in