breakin recommendations

nandos_z28ss · 10-10-2005, 12:30 AM

hello everyone i was wondering if any one has any break in recommendations for my new motor.i bought a long block from central coast mustangs and was told by several diff people that i didnt need to break it in and others said i did so i was wondering if any one could help me out,
thanks

Jeff Chambers · 10-10-2005, 07:41 AM

10 minutes at 2000 rpm with no or light load on the engine. Preferably light load, say in third gear on the highway. That should be sufficient to set the rings. Change the oil after the break-in and cut the filter apart for inspection.

bmxmon · 10-10-2005, 05:36 PM

I was told when you first get it running to get the engine revved up, fluctuating between 2000-3000rpm, for about 20 minutes. Then change the oil, and an easy 500-1000 miles after that. Then flog it, lol. It worked for me.

Gearhead999 · 10-10-2005, 06:34 PM

After the intial start up and cam run in, if it is a flat tappet cam, not a roller. Then run it like you would any other time. If you run'm hard....."drive it like you stole it". If you want to "baby" it, so be it. Personally.....myself.....I run the cam in, if it's a flat tappet. Then I just drive it normally, not letting it idle and get hot. Just drive the darn thing.

Jeff Chambers · 10-10-2005, 08:44 PM

Like I said, 10 minutes at 2k with light load. After that, we'll take em straight to 7000rpm on the engine dyno. Once the rings are seated, that's all that is necessary if the engine has been built correctly.

nandos_z28ss · 10-12-2005, 08:38 AM

ok thanks guys just dropped it in yesterday and fired it up jus need a few minor things and thanks for the replys

10-10-2005, 12:30 AM	#1
nandos_z28ss Registered Member Join Date: Sep 2005 Posts: 11	breakin recommendations hello everyone i was wondering if any one has any break in recommendations for my new motor.i bought a long block from central coast mustangs and was told by several diff people that i didnt need to break it in and others said i did so i was wondering if any one could help me out, thanks

10-10-2005, 07:41 AM	#2
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	Re: breakin recommendations 10 minutes at 2000 rpm with no or light load on the engine. Preferably light load, say in third gear on the highway. That should be sufficient to set the rings. Change the oil after the break-in and cut the filter apart for inspection. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"

10-10-2005, 05:36 PM	#3
bmxmon Registered Member Join Date: Mar 2004 Location: Minnesota Posts: 950	Re: breakin recommendations I was told when you first get it running to get the engine revved up, fluctuating between 2000-3000rpm, for about 20 minutes. Then change the oil, and an easy 500-1000 miles after that. Then flog it, lol. It worked for me. __________________ Alex

10-10-2005, 06:34 PM	#4
Gearhead999 Registered Member Join Date: Sep 1998 Location: Oviedo, FL Posts: 992	Re: breakin recommendations After the intial start up and cam run in, if it is a flat tappet cam, not a roller. Then run it like you would any other time. If you run'm hard....."drive it like you stole it". If you want to "baby" it, so be it. Personally.....myself.....I run the cam in, if it's a flat tappet. Then I just drive it normally, not letting it idle and get hot. Just drive the darn thing. __________________ "Support our Troops" Dave 1968 Cougar 2004 Thunderbird 2007 F150 Harley-Davidson, SuperCrew 1986 LTD 1997 Ranger 1992 Honda Civic

10-10-2005, 08:44 PM	#5
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	Re: breakin recommendations Like I said, 10 minutes at 2k with light load. After that, we'll take em straight to 7000rpm on the engine dyno. Once the rings are seated, that's all that is necessary if the engine has been built correctly. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"

10-12-2005, 08:38 AM	#6
nandos_z28ss Registered Member Join Date: Sep 2005 Posts: 11	Re: breakin recommendations ok thanks guys just dropped it in yesterday and fired it up jus need a few minor things and thanks for the replys

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