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  #11  
Old 22-01-2009, 11:42 AM
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Quote:
Originally Posted by mark
Sounds very similiar to what I was told when I first signed for the car and made enquiries.. but at hand over was told to do the 1800km thing.
I specifically asked at hand over if i should drive a particular way for a certain period and thats when he said no need to drive any differently than normal...(Obviously people's 'normal' driving can differ greatly )
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  #12  
Old 22-01-2009, 11:46 AM
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I dropped skids on the way out of City Subaru when I picked up MY06 WRX STI and never had one issue with that car.
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  #13  
Old 22-01-2009, 12:08 PM
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I bounced it off the rev limiter & asked "is this ok?"
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  #14  
Old 22-01-2009, 12:13 PM
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there is a guide to breaking in engines by a guy who did racing bikes, his method to get the best piston ring seal was to warm up the engine by puttering around and then when it was up to temp pretty much thrash the tits off it.

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

there is the link.
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  #15  
Old 22-01-2009, 12:27 PM
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I don't agree a single bit with that guys method, flogging the hell out of cars straight off is not good on things like bearings and the like, the other issue i have with his method is looking at all the different pistons hes got, especially the ones that have been running race fuel and are shiny ally, he has been running his mixtures too lean and pretty much at the point of melting, a properly tuned car should still have some brown/black on the crowns, not a big thickl layer, but a small amount, if its just bright clean ally, you need to get more fuel in there pronto...

the best method ive found, and its worked every time for me is as follows
0-200 km drive it below 5k, minimal or no boost
200-500km keep it below 5k, but drive it a bit harder so it gets boost in there, this will get the rings sealing to the bore properly
500-1000km gradually as you get more km on the motor start winding it out to red line and giving it a harder time, by the 1k mark you ready to have traffic light drags

and thats the way to do it, it gives the motor time to seat and settle initially without risking the rings not sealing properly, works a charm..
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  #16  
Old 22-01-2009, 12:54 PM
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from that link -"There's a very small window of opportunity to get the rings to seal really well ... the first 20 miles !! "

i have never bought a new car, but id say that most of those 20 miles would get used during shipping the car, and in the car sales yard etc...
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  #17  
Old 22-01-2009, 02:18 PM
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Quote:
Originally Posted by Jim621
from that link -"There's a very small window of opportunity to get the rings to seal really well ... the first 20 miles !! "

i have never bought a new car, but id say that most of those 20 miles would get used during shipping the car, and in the car sales yard etc...

And i've lost count of the number of times i've seen brand new cars getting thrashed around with dealer plates on.

I wouldn't stress too much about the run in period. I took it fairly easy for the first 500 on my 07Xt and then let it rip. Now on 70k and runs great with little oil usage.
Motors are pretty good these days. You very rarely see a car smoking compared to 10 years ago.
Much more likely to end up with a stuffed motor from a failed cooling system, timing belt or fueling rather than rings or bearings.
Although subaru have had some well publicized bearing failures over the last few years, at least they seem to honouring all warranty claims.
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  #18  
Old 22-01-2009, 03:29 PM
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The secret is load. Moderate RPM, lots of throttle everywhere for the first 1000km....this loads the engine up fairly well and beds rings in.
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  #19  
Old 22-01-2009, 03:42 PM
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Quote:
Originally Posted by BALISTC
The secret is load. Moderate RPM, lots of throttle everywhere for the first 1000km....this loads the engine up fairly well and beds rings in.
Never has a truer word been spoken. Get some fat mates to sit in it and drive up greenmount hill in 4th gear. No need for high speed but you want to make the engine work.
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  #20  
Old 22-01-2009, 03:58 PM
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Works well for me My dads LS1 Commodore when he had it, never ever ever burned a drop of oil....it was run in using this method.
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