break in period
 

I just finished a complete re-buildi my D16a6, and I plan to add boost next. How many miles should be clocked before boost can be added.

Re: break in period
 

one good burn out >:D

Re: break in period
 

I think its best to break in the motor with boost if you are going to be boosting it

Re: break in period
 

No, its best to put as less stress as possible on a freshly rebuilt engine on its first test run.

This is how you break it in, put in engine oil, idle engine for quite a bit, 1 or 2 heat cycles, change engine oil and take the car out for a spin when its up to operating temps.

Drive it for a bit, then do some 3rd gear pulls and then for the next 200 miles drive it normally I guess.

but you definetly dont want to be driving it like a granny going to church.

Re: break in period
 

boosted motor gets a boosted breakin. common knowledge. Ive done it twice

Re: break in period
 

I've heard ur supposed to drive it hard while breaking it in so the rings seat and seal good.

Re: break in period
 

Your going to find a million different answers from good engine builders on this one. Some are going to say a few thousand miles, some are going to say a few hundred miles, and some are going to say a couple miles. My advice would be do some research and decide on your own. Personally I would make sure it's tuned right away the first time you start it. The nest best thing would be to run it on stock injectors and the stock ecu until broken in. I have read the rings are broken in within the first few miles anyways, but I'm not an engine builder, so don't quote me on that. I would probably just run it a few miles and do a hard break in and boost the fucker, just depends on what I am using the car for.

Re: break in period
 

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

think of the fresh hone on the bores as a filing surface that wears with use. If you don't apply the ammount of pressure you will be using before this surface is gone the rings will not have a chance to wear to fit.

Re: break in period
 

That article is very interestion and a 180 from what I have read, would the same prinsaples apply considering this article is based on a brand new factory motor and mine is not nad has been overbored.

Re: break in period
 

Thanks for the link, been looking for it before i have my stuff back from the machine shop