jdmh22bubble

my friend just got a b20b put in his 95 civic.The motor is built and he wanted to know how many miles does he need to drive it easy to break it in,The man that did the swap told him 1500 miles,is this true,The motor is built for turbo and the man told him not to put the intake pipe from the turbo kit on until the 1500 miles is up so it wouldn't have any boost,is this true or is it **** and how long of a break-in period do you recommend.

Irishweird00

I would treat it the same as a new car, 3K miles, then time to beat on it.... i would give it some time to break in fully.

J2turbo21

Here ya go and check out the other link also.

https://honda-tech.com/zerothread?id=510738

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

Paranoid Android

yea man

hes not lying.

600 for new clutch
1500 for new engine

dunno bout turbo upgrades, i would just wait 1500. do what the man says, hes a professional.

Chris Benoit

What all did your friend have done to his engine? if you dont mind me asking

acydphryck

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Paranoid Android &raquo;</TD></TR><TR><TD CLASS="quote">yea man

hes not lying.

600 for new clutch
1500 for new engine

dunno bout turbo upgrades, i would just wait 1500. do what the man says, hes a professional.</TD></TR></TABLE>

"wtf??? who told the **** you that??? ****....give me the keys and i'll break it in right now!"

courtesy of Jerry...

iNfAmOuS_E46

i thought break in time was 4k

rodrez.

There really is no official length of time to break in a motor. Different builders have different opinions. My friend/mechanic suggests not letting the car idle often, and not cruising at any set rpm, keep the needle moving. After 500 miles, he changes the oil, and puts on another 200 miles before really abusing the motor. It's worked for me in the past, and just this month.

Gravy

it doesnt take that long for the rings to seat. i say 500 and go have some fun.

J2turbo21

PM earl or ninesecrx and ask for there opinions.They have a low 9second crx drag car and i dont think they take it out for 1000+miles and mild driving for another 500.Just post what they say.

RedlinedVTEC

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by J2turbo21 &raquo;</TD></TR><TR><TD CLASS="quote">PM earl or ninesecrx and ask for there opinions.They have a low 9second crx drag car and i dont think they take it out for 1000+miles and mild driving for another 500.Just post what they say.</TD></TR></TABLE>

It's also a race motor, not daily driven and will not last as long before needing a rebuild unlike a motor broken in using normal techniques for break in. Cmon.

Evs-One

There are so many rumors about "breaking in engines".

It comes down to this.... every engine's rings need to seat...which, depending on how much you coated the cylinders with oil/lube, can take 10 minutes or up to an hour to burn off the oil and get the rings nice and seated.

After this....break it in how you're gonna drive it. If you're gonna baby your car forever, then baby it on break in.

If it's a race car which will get pushed EVERY tie it runs, then break it in hard or don't even break it in.

But typically, you need to let the rings seat( drive slow, put car on ack stand and drive in 3rd gear for about 10 minutes, or keep the revs at 3 grand until it sounds good)

Then, change the oil and get all that residue out, with the assembly lube. Then, take it easy for 500 miles and let the bearings break in, change the oil, then you're good to go.

And what you said about turbos....turbos are actually BETTER for break in because it raises the cylinder pressure, helping the rings seat sooner. Just don't be boosting until you're all broken in.

underrated99si

1500 miles

96BlackHB

Emerika,
What's your opinion on this dude's break-in method?
http://www.mototuneusa.com/break_in_secrets.htm

Evs-One

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 96BlackHB &raquo;</TD></TR><TR><TD CLASS="quote"> Emerika,
What's your opinion on this dude's break-in method?
http://www.mototuneusa.com/break_in_secrets.htm </TD></TR></TABLE>

I couldn't agree with the guy more. This is exactly why turbo engines are much better on new engines. Greater cylinder pressuer equals a better break-in.

Usually, when I break in a new engine, this is what I do....

Get it started and check over for any leaks, mishaps, etc for like 2minutes. If this is all good, I hold the throttle open at about 3k rpm for about 5 minutes. Then I'll do full throttle revs to about 5 grand, again, making sure all is good. The I'll take her out for a spin...usually WOT to about 1/2 - 3/4 redline.

It is good to kind of push your car on break in if you want best performance.

Like what I said earlier, break it in how you want to drive it. Just make sure you cange your oil often to get pieces of rings, and bearings and assembly lube out of the oil system

rodrez.

Good info Emerika.

For me, with my rings just being replaced this month, I haven't been able to keep off of the freeway because of work etc, so I would get on it from 3000 - 5500, let off, and allow the motor to slow itself back down to about 3000. Seems to be working well, not burning/smoking. This worked for my old built motor a long time ago as well.

Evs-One

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rodrez &raquo;</TD></TR><TR><TD CLASS="quote">Good info Emerika.

For me, with my rings just being replaced this month, I haven't been able to keep off of the freeway because of work etc, so I would get on it from 3000 - 5500, let off, and allow the motor to slow itself back down to about 3000. Seems to be working well, not burning/smoking. This worked for my old built motor a long time ago as well. </TD></TR></TABLE>

Thats exactly what you do. Avoid constant revs for a long period of time(freeway driving etc). JUst go in 3rd or 4th gear, WOT from 2 grand to 5 grand, and let it engine break back down, then up again...go from like 20 to 60 mph forr about 30 minutes....this is what all the old schoolers told me how they do.

Did so on my first engine build (70 Chevy pickup with a built 350), and drove it across state with 700 miles on it....still in tip top shape

ERA

Here are my coins....

On mine, after the build, just like Emerika said you gotta look it over for leaks and all of that.. let idle for 10 min or so. Take if for a drive and start break in like this.... Start by only taking the ride to 3g never staying constant at RPM.. up and down up and down. Every hundred miles bump it up 500 rpm... up and down etc. Once you get to about 4500-5000 start bumping up every 50 miles/ 500 rpm. after you hit 6g, hold there till you got about a thousand miles on it. After that, rip on it. I suggest oil change at around the 300 mile area.

EddieHatchBlack

i'd do 500 miles under 4500 rpm.

than drive it how you are going to drive it.