[biggbird72]

Hey TI, I was just curious if anybody here is familiar with the break-in procdure described here:
www.mototuneusa.com/break_in_secrets.htm

I've always known of the "old" ways of engine break in. I'm not sure what to think about this, it makes sense but it also seems risky. My question is, has anybody tried this procedure? Or known somebody directly that has?

P.S. I put this in the performance section becuase of the claim of increased performance. And also, becuase I couldn't think where it would belong, so if I'm wrong I apologize.

 

[Da1witskilz]

I say its worth a try. This does make sense as when i recently rebuilt an engine I leti t idle for a total of probably 10 minutes before It was given a LOT of hard revving, not actually driving but revving, on a block that had over 120k miles on it, and just the new rings sealed a perfect 195-200 psi all across the cylinders which surprised me since i expected the cylinder walls to be fckd up over 120k miles in a car that was definitely not taken care of

 

[4drdb7]

Link for the lazy

 

[biggbird72]

^^How do you make a link like that?

 

[Jake1220]

Hard break-ins FTW

 

[biggbird72]

I say its worth a try. This does make sense as when i recently rebuilt an engine I leti t idle for a total of probably 10 minutes before It was given a LOT of hard revving, not actually driving but revving, on a block that had over 120k miles on it, and just the new rings sealed a perfect 195-200 psi all across the cylinders which surprised me since i expected the cylinder walls to be fckd up over 120k miles in a car that was definitely not taken care of

Did you have the cylinders honed?

 

[Da1witskilz]

no honing at all just new rings put on

 

[biggbird72]

So that works? I've always been told to hone the cylinder walls when installing new rings. So it can work huh? Hmm....*thinking* My friends was going to upgrade pistons but was waiting for the down time becuase of having to hone cylinders....

 

[midwesta]

many many people break in engines like this now, especially shops with dynos.

 

[biggbird72]

I'll say, that makes me excited. We may be able to get those new pistons in sooner. But is there a particular way to go about it? Or is it just a simple, install pistons, rings and then break in?

 

[96teggiehatch]

to bad it doesnt apply to any of us, unless someone driving a new rsx or s2k with only a couple of miles...

 

[GPolo]

ughh not true...rebuild motors or ppl wit new piston rings it does apply

 

[biggbird72]

I wonder if this break-in would still work the same if you didn't hone the walls?

 

[jcavittintegra]

i just did my new/rebuilt engine like that.

 

[biggbird72]

^^You used the motoman break in or without honing the cylinders?