h22_crx

what the best way to break in a new motor

H22-VTEC

Is it a BRAND NEW motor or is it a new motor (as in new to the car with low miles)????
IMO.. dont drive it hard. just drive it normal for a couple weeks. This will give you enough time to get all the bugs out without breaking something.
anyone else?

BB4

i gave mine about 500 easy miles after the swap

2lude4u

I've studied this issue a fair amount and am fairly convinced that the best way to break a newly built motor in is hard. Not meaning to simply go out & drive like crazy, but a steady method of pushing it hard then letting it coast in gear (engine brake). Push it to 30% for a few pulls, then 50%, then 75% then 100%. Inbetween each pull let it coast in gear. Some rolling hills would be a great place to do it (from what I understand most manufacturers have rolling hill type courses to break in their motors), or just a good flat. Don't forget to change the oil right after this process.

4bidden

Read it

http://mototuneusa.com/break_in_secrets.htm

AzCivic1.6

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 4bidden &raquo;</TD></TR><TR><TD CLASS="quote">Read it

http://mototuneusa.com/break_in_secrets.htm</TD></TR></TABLE>

ditto

mototune

rawNArsxS

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 4bidden &raquo;</TD></TR><TR><TD CLASS="quote">Read it

http://mototuneusa.com/break_in_secrets.htm</TD></TR></TABLE>

i saw this a while ago...i that really true? id have a hard time doin that n god forbid somthin happens n i blow my $10k motor.

rawNArsxS

bump

syntax.

yes its true. yes it works.

2lude4u was right on. If something is going to break or you have clearance issues, then it is going to be a problem no matter how hard or soft you drive it.

plikit

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 4bidden &raquo;</TD></TR><TR><TD CLASS="quote">Read it

http://mototuneusa.com/break_in_secrets.htm</TD></TR></TABLE>

this is what i went by after my rebuild.

l2yanE

a 70+ year old engine builder once told me, break it in like your gonna run it, thats what i did- 6,000 miles later runnin strong

h22_crx

now my car is turbo

P73typeR

if ur car is turbo i wouldnt drive it unless it is getting tuned on the dyno right away....but i broke my all motor in by first letting it warm up then give it a good 3rd gear power pull then after that i would just cruis in second at 30mph then hit it to 60mph and let it engine brake itself back to 30 then back to 60 and so on i did it 10 times and then i just drove it how i wanted too and my compression is perfect.

Acura_I-RS

that mototune site is great!!