New engine break-in....what to do, and what not to do?? - Page 2 - GTcarz

Mar 24, 2005 | 12:43 PM

#16

NOTORIOUS VR

user

Joined: Feb 2005

Posts: 1,153

From: T.O.

Rep Power: 801

NOTORIOUS VR will become famous soon enough

Nothing anyone will tell you is 100% right, because there is NO tried and tested way to break-in an a engine.

Mar 24, 2005 | 09:41 PM

#17

l_bilyk

Junior GTcars Poster

Joined: Feb 2005

Posts: 235

From: Missassausage

Rep Power: 781

Quote:

Originally Posted by supra_DT

This recommendation goes against what everyone is saying:

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

This method seems to be the one most high horsepower cars have adopted.

there is alot of truth to this, BUT it's also possible to overdo it
while he's right about the cylinder pressure actually putting the loading on the rings, if you have TOO much pressure on a fesh hone, it will not only seat the ring, but chew away too much
if you chew away too much of the ring, you open up the end-gap too much, allowing for MORE blowby

there is really no one best method for it... it really depends on the type of rings used and the type of hone