how do most of you do it? at the dealer we breakin motor before the custom have their car back .. we have the motor idle just to set timing and rev to 2500 rpm for 5 min and drop idle for a minute or two and rev again about 3500rpm for 5 minute or so and give a quick steady rev to 4k and drop down too idle ,continue for about 25 minutes..and tell customer to go easy on pedal for the first 500 miles.
my question is how do you guy break in a race motor with out having to drive a car around town . i did my race motor like that but wondering if there's a better way.? thanks

 

do a search this was covered not to long ago in a thread ...it explains a few different methods ...alot of usful info

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM2ndGen &raquo;</TD></TR><TR><TD CLASS="quote">do a search this was covered not to long ago in a thread ...it explains a few different methods ...alot of usful info </TD></TR></TABLE>

I think that thread was in the Tech forum, if I'm not mistaken.

 

thanks for advice but i did the search ..nothing about race motor (can't drive around town ) do not have dyno near by to do dyno breakin..

 

Search for anything that has to do with break ins, or break in, or breakin, or break-in, or anything else that seems appropriate.

 

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

this was a very interesting article. probably how i'm gonna break in mine if i ever get that far .

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jwn7 &raquo;</TD></TR><TR><TD CLASS="quote">http://www.mototuneusa.com/break_in_secrets.htm

this was a very interesting article. probably how i'm gonna break in mine if i ever get that far .</TD></TR></TABLE>Yes, that is a very interesting article

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jwn7 &raquo;</TD></TR><TR><TD CLASS="quote">probably how i'm gonna break in mine if i ever get that far .</TD></TR></TABLE>
no kidding im neck deep in my ls/vtec build and ive been getting so anxious and worried that im never gonna finish

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondavtecfanatic &raquo;</TD></TR><TR><TD CLASS="quote">
no kidding im neck deep in my ls/vtec build and ive been getting so anxious and worried that im never gonna finish</TD></TR></TABLE>Yeah, doesn't it feel like when you think you've got everything to finish your build, there's always something else you might need just in case or for the hell of it. There's always something else you need because it's a neverending money pit!

 

lots of ppl been talking about runing it really hard to break it in and stuff but personally i would never do that

i would never pass 4k untill after 3,000 miles
change oil after 1,000 miles
just run it real easyand baby it untill 3k

 

Personally. I let it idle for 20 minutes.
Drive it. 50% throttle runs to 5000-6000rpms, letting off so the piston rings get bathed in oil. Come back after 20 miles of this. Change oil. Drive for 500 miles, not passing 65% throttle and 6000rpms. Change to synthetic. 100% throttle 8-10k rpms..

 

3 cold starts with wesco rings

 

good link

http://m24x.zeroforum.com/zerothread?id=13

 

I did the whole idle rev thing for 20 min, changed the oil , then took it out of the garage and drove it fr 5 miles making changes with my fuel curve via the wideband o2. then cracked it open to 8 grand. Made 40 pulls on the dyno the next day. Firts time i did it this way , I usually do the whole 1000mile slow way, but the car wasnt registered or insured so this is the way I did it.


Modified by Tbone at 2:53 PM 2/2/2004

 

break it in on the dyno

 

thank you all for your inputs..thanks again

 

why not break in a motor on the engine dyno?

 

not one near by