For those with rebuilt engines!
12-28-2003, 03:08 PM
#11
1.0 BAR
Thread Starter
Join Date: Nov 2003
Posts: 290
Re:For those with rebuilt engines!
Thanks for all the input and like always I appreciate it. 
I will do the break'in and then straight to the track ill let you know how my HMT setup does at the track and at the dyno at 10 psi 
I will do the break'in and then straight to the track ill let you know how my HMT setup does at the track and at the dyno at 10 psi
12-28-2003, 03:13 PM
#12
0.5 BAR
Join Date: May 2003
Posts: 189
Re:For those with rebuilt engines!
When I started up my rebuilt engine for the first time, I let it idle for about 20 mins while I looked around and checked everything out, making sure it's all good. Then I took her out on the road, for about a mile just to make sure everything is driving well, then I couldn't hold back and let her loose and raped her good. She's been running fine to this day and just passed smog with flying colors.
12-28-2003, 03:14 PM
#13
1.0 BAR
Join Date: Oct 2003
Posts: 520
Re:For those with rebuilt engines!
There are two very well documented methods of breaking in an engine:
1.) First few minutes of running, after its warmed up idle the engine 2000-2500 rpm for a lil while to seat in the rings. Then very easy the first 1500-2000 miles, no long duration RPM levels (as in dont drive it 500 miles somewhere on the interstate for now). I change the oil every 1000 miles for the first 3000 miles on an engine to make sure she isnt putting ---- in the pan. Use this method if you intend to drive this motor for a long period of time.
2.) Run the ever loving **** out of it out of the box. This will probobly yield you the most power, but the durability of the engine wont be there. This is what they do with race engines, but rememebr those engines arent built with running another 150,000 miles in mind!!!
edit: I forgot to add that it really depends on the engine too. The generic / oem rings dont take too long to seat in... they design them like that cuz they know gimps will be ragging on it ASAP. If you've built up a really nice motor w/crome moly rings yadda yadda those take a lot longer to seat! Sometimes if you're too hard on them during break in they never seat.
Always make sure you keep an eye on your oil!!! New engines will burn a bit until rings etc are seated.
1.) First few minutes of running, after its warmed up idle the engine 2000-2500 rpm for a lil while to seat in the rings. Then very easy the first 1500-2000 miles, no long duration RPM levels (as in dont drive it 500 miles somewhere on the interstate for now). I change the oil every 1000 miles for the first 3000 miles on an engine to make sure she isnt putting ---- in the pan. Use this method if you intend to drive this motor for a long period of time.
2.) Run the ever loving **** out of it out of the box. This will probobly yield you the most power, but the durability of the engine wont be there. This is what they do with race engines, but rememebr those engines arent built with running another 150,000 miles in mind!!!
edit: I forgot to add that it really depends on the engine too. The generic / oem rings dont take too long to seat in... they design them like that cuz they know gimps will be ragging on it ASAP. If you've built up a really nice motor w/crome moly rings yadda yadda those take a lot longer to seat! Sometimes if you're too hard on them during break in they never seat.
Always make sure you keep an eye on your oil!!! New engines will burn a bit until rings etc are seated.
12-28-2003, 08:14 PM
#14
3.0 BAR
Join Date: Mar 2003
Posts: 21,479
Re:For those with rebuilt engines!
A friend of mine built his 350 TPI and broke it in driving no different than he always does. He ------- raped that thing like you wouldn't believe. The first ~200 miles he "kinda" took it easy, but after that he ------- abused that -----. It's still running strong to this day about 3 years later. We even took it on a 200 mile road trip with long spurts of 150mph+. ------- insane. When you pass people that are doing 80-85 like they aren't moving, it kinda scares you. 
When I rebuild my bike, I take it easy for the first ride, don't hold it at any rpm for long periods of time, take it through the entire rpm band, let it cool down, then ride it like I stole it. They always turn out perfect like that. Right this minute my bike has a fresh top end with the assembly lube still in it just waiting for me to rape it.
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When I rebuild my bike, I take it easy for the first ride, don't hold it at any rpm for long periods of time, take it through the entire rpm band, let it cool down, then ride it like I stole it. They always turn out perfect like that. Right this minute my bike has a fresh top end with the assembly lube still in it just waiting for me to rape it.
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12-28-2003, 10:23 PM
#15
0.0 BAR
Join Date: Dec 2002
Posts: 0
Re:For those with rebuilt engines!
Originally Posted by GimpyCivic
There are two very well documented methods of breaking in an engine:
1.) First few minutes of running, after its warmed up idle the engine 2000-2500 rpm for a lil while to seat in the rings. Then very easy the first 1500-2000 miles, no long duration RPM levels (as in dont drive it 500 miles somewhere on the interstate for now). I change the oil every 1000 miles for the first 3000 miles on an engine to make sure she isnt putting ---- in the pan. Use this method if you intend to drive this motor for a long period of time.
2.) Run the ever loving **** out of it out of the box. This will probobly yield you the most power, but the durability of the engine wont be there. This is what they do with race engines, but rememebr those engines arent built with running another 150,000 miles in mind!!!
edit: I forgot to add that it really depends on the engine too. The generic / oem rings dont take too long to seat in... they design them like that cuz they know gimps will be ragging on it ASAP. If you've built up a really nice motor w/crome moly rings yadda yadda those take a lot longer to seat! Sometimes if you're too hard on them during break in they never seat.
Always make sure you keep an eye on your oil!!! New engines will burn a bit until rings etc are seated.
1.) First few minutes of running, after its warmed up idle the engine 2000-2500 rpm for a lil while to seat in the rings. Then very easy the first 1500-2000 miles, no long duration RPM levels (as in dont drive it 500 miles somewhere on the interstate for now). I change the oil every 1000 miles for the first 3000 miles on an engine to make sure she isnt putting ---- in the pan. Use this method if you intend to drive this motor for a long period of time.
2.) Run the ever loving **** out of it out of the box. This will probobly yield you the most power, but the durability of the engine wont be there. This is what they do with race engines, but rememebr those engines arent built with running another 150,000 miles in mind!!!
edit: I forgot to add that it really depends on the engine too. The generic / oem rings dont take too long to seat in... they design them like that cuz they know gimps will be ragging on it ASAP. If you've built up a really nice motor w/crome moly rings yadda yadda those take a lot longer to seat! Sometimes if you're too hard on them during break in they never seat.
Always make sure you keep an eye on your oil!!! New engines will burn a bit until rings etc are seated.
the only reason anyone "breaks in" an engine is to seat the rings
20mins about @ 2000rpms, change the oil. and drive it like you stole it. bottom line. dont listen to anything else. this has been the way its been since the 50s.
anyone who drives their car for 2000 mile without gettin on it to "break it in" is a moron. sorry but the only people i ever hear saying this are ricers.
12-29-2003, 01:19 AM
#16
1.0 BAR
Join Date: Oct 2003
Posts: 520
Re:For those with rebuilt engines!
Well then I guess I'll just have to be a "stupid ------- ricer" because thats how I've broke in the 3 engines I've built and will continue to do so. I don't spend a shitload of cash on parts and machine work to possibily **** it all away. The ------- machine shop who does my work is who tells me to break these in... I believe them a lot more than some internet assclowns.. no offense.
So you do it your way, I'll do it mine.
So you do it your way, I'll do it mine.
12-29-2003, 05:10 AM
#17
0.0 BAR
Join Date: Dec 2002
Posts: 0
Re:For those with rebuilt engines!
Originally Posted by GimpyCivic
Well then I guess I'll just have to be a "stupid ------- ricer" because thats how I've broke in the 3 engines I've built and will continue to do so. I don't spend a shitload of cash on parts and machine work to possibily **** it all away. The ------- machine shop who does my work is who tells me to break these in... I believe them a lot more than some internet assclowns.. no offense.
So you do it your way, I'll do it mine.
So you do it your way, I'll do it mine.
i did NOT even break my engine in when i honed the cylinders and put new rings in. no smoke no nothin. good compression...
i railed the ---- out of it after the first 10 mins of runnin it... and its been about 10k miles since i did it... and 2 oil changes...
12-29-2003, 07:05 AM
#18
3.0 BAR
Join Date: Mar 2003
Posts: 4,217
Re:For those with rebuilt engines!
some people gets lucky, but some people have to be carefull, like I'm broke as ---- no because spend all my money to rebuild my blown engine with all the big names je, eagle, cometic speaking of cometic I went all way from germany to miami and spend $150 for a head Gasket, so I will make sure I break mine in the professional way, 500 miles its on papers, and I trust eric aquilar, in honda tuning, a guy who built the fastest Na civic know what he is talking about, I would not call him a stupid ricer, He is the man!!!!
12-29-2003, 10:39 AM
#20
1.0 BAR
Join Date: Oct 2003
Posts: 520
Re:For those with rebuilt engines!
Originally Posted by rudebwoy
some people gets lucky, but some people have to be carefull, like I'm broke as ---- no because spend all my money to rebuild my blown engine with all the big names je, eagle, cometic speaking of cometic I went all way from germany to miami and spend $150 for a head Gasket, so I will make sure I break mine in the professional way, 500 miles its on papers, and I trust eric aquilar, in honda tuning, a guy who built the fastest Na civic know what he is talking about, I would not call him a stupid ricer, He is the man!!!!
I'm also broke as ---- and the last motor I built myself was a 351W for my 95 Mustang. I saved up for a year for the rotating assembly components, machine work, balancing and all those other goodies. And for me to possibly throw it all ------- away by 'railing on it in the first 10 mins' was not an option. I let it get settled in for a good 1000 miles of light driving and its been going for 70,000 miles supercharged and not the slightest hint of trouble or performance loss.
So anyway my point of this post is, to issue a blanket statement that people who throughly break in their engines (which took a lot of hard earned money to build 9 times out of 10) are stupid ricers is retarded. I simply posted what *has* worked for me after PERSONALLY (except for the machinework.. but who has a boring bar, etc in their house?) building 3 of my own engines. If you don't like it, go rail on it 30 seconds after its started... its all you baby.
