If I were you then I would keep it stock b/c that is what is recommended by the person who actually manufactured the car

 

my theory, use your best judgement....

 

I don't know. Seems a bit unorthodox to me.

 

i have been building race engines for years and we engine dyno all of our engines in this matter:

wot UNDER load...the engine is struggling to reach redline with this process. we do this for about 30 minutes. we then let it cool, open up the Oberg oil filter housing and check the screen for any un-wanted metal particles, drain the oil then do the power runs. another interesting note...we always break in engines with high quality dino motor oil then use full synthetic Motul 300V when installed in the car.

when i was working on Champ cars the engines where broken in the same way. this is why i have do this since i have been building my own engines.

winston

 

My experience has been that anyone who uses the word "whatsoever" is full of ****.

 

Well your not me so don't recoomend something to me unless i ask. I gave my opinion on the topic of the thread. Isn't that the whole point of this website? Helping people out

 

Not a big deal. Just seemed like you were saying the manual was the gospel.

 

I love busting open a Oberg after the run in, all the crap you find is hilarious...paint, metal chips, plasti-gauge, and some sort of gray sludge. No mater how many times you wash a block the filter is always full of crap

 

yeah...sometimes we find little red fibers from shop towles too.

winston

 

we always broke in our race car motors on the dyno, doing power/tuning pulls!

touring cars, Lemans cars, American Iron series, and even a couple big power street cars (like our 91 porsche 911 with a 383chevy v8TT!)

 

Aside from that, the engines are tested at the factories and i'm sure they are beaten to hell before put into the cars. As for my car I took it easy for 500 miles, which I then took it up to 140. I then took it easy for another 500 miles untill 1k miles and took it up to 160. I've been driving it like I stole it ever since with no problems.

 

This technique is proven. Before i bOUGHT MY atv I read this page and figured it was in perfect time so i printed it out. I used the Dyno technique and about Four months later I pulled out the piston and it look nothing like what a four month year old piston looked like. I t looked more like a two week old piston. So I definetly recommend it.

 

I got my Evo two weeks ago and had been babying it ever since. Is it too late to try the "hard way" now that the engine has 220 miles in it?

 

I broke in my Evo and R1 by the book but now after reading that article I dont know what to think. I do know that if you go to NHRA they build an engine, put it in the car and let it rip down the track. Then they rebuild it again