The ever persistant "Engine Break-in" question...
5/15/10, 09:48 PM
#22
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5/15/10, 09:54 PM
#23
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to proper break in procedures. It's progress. Really!My take is that by the time we get the cars, the rings have been mostly seated. In order to really break a car in hard, you'd need to take it as it rolled off of the line.
5/15/10, 10:08 PM
#24
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Don't be. I think it's a good topic. Enough people are getting their cars that we've moved on from WTF IS MY F'N CAR OMFG OMFG OMFG to proper break in procedures. It's progress. Really!
My take is that by the time we get the cars, the rings have been mostly seated. In order to really break a car in hard, you'd need to take it as it rolled off of the line.
to proper break in procedures. It's progress. Really!My take is that by the time we get the cars, the rings have been mostly seated. In order to really break a car in hard, you'd need to take it as it rolled off of the line.
It really isn't going to make any difference whether you break it in by running it hard or going easier on it. The rings will be seated in either way, one way just takes a bit longer than the other more fun way to do it.
5/15/10, 10:11 PM
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My hope, and I guess it was too much to hope for, was that everyone would not get hysterical over ANOTHER non-issue.
It really isn't going to make any difference whether you break it in by running it hard or going easier on it. The rings will be seated in either way, one way just takes a bit longer than the other more fun way to do it.
It really isn't going to make any difference whether you break it in by running it hard or going easier on it. The rings will be seated in either way, one way just takes a bit longer than the other more fun way to do it.
5/15/10, 11:24 PM
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Ok, one more time without the neon green font. "Smaller Intake Ports Gain 7 % More Power !! Never Before Seen in Magazines"
Do you want to listen to this guy, or do you want to listen to the advice of highly trained automotive engineers that work for all the major car companies?
Do you want to listen to this guy, or do you want to listen to the advice of highly trained automotive engineers that work for all the major car companies?
Lighten up until you can cite some flow characteristics.
Last edited by cdynaco; 5/15/10 at 11:26 PM.
5/15/10, 11:48 PM
#29
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5/16/10, 01:50 AM
#31
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Ok, one more time without the neon green font. "Smaller Intake Ports Gain 7 % More Power !! Never Before Seen in Magazines"
Do you want to listen to this guy, or do you want to listen to the advice of highly trained automotive engineers that work for all the major car companies?
Do you want to listen to this guy, or do you want to listen to the advice of highly trained automotive engineers that work for all the major car companies?
5/16/10, 05:03 AM
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Last edited by krnpimpsta; 5/16/10 at 05:04 AM.
5/16/10, 05:11 AM
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Picked my 2006 up right off the rail car in Jackson MS, had 2 miles on it. Broke it in with the whip. Full power run ups in 4th gear from 1500 rpm to rev limiter about 10 times. Runs 13.1 @ 106.7 with a tune and xpipe on the stock Pirellies, and gets 28 mpg at 70 mph, and dosen't need to have oil added between oil changes at 5K miles. The car is at 50K miles currently. Think of every drag car purposly built, they don't get broken in with a gentle run in either, if it made them faster, they would be. I've built a lot of motors, long time ago piston ring boxes actually said to do this on the label.
Very good advice, give it the whip.
Very good advice, give it the whip.
5/16/10, 05:17 AM
#34
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Anytime air passes through a smaller area, it must speed up, but the increased pressure in the narrow area (which is causing it to go faster), will cause less air, overall, to move through that opening.
5/16/10, 05:21 AM
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5/16/10, 05:23 AM
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My hope, and I guess it was too much to hope for, was that everyone would not get hysterical over ANOTHER non-issue.
It really isn't going to make any difference whether you break it in by running it hard or going easier on it. The rings will be seated in either way, one way just takes a bit longer than the other more fun way to do it.
It really isn't going to make any difference whether you break it in by running it hard or going easier on it. The rings will be seated in either way, one way just takes a bit longer than the other more fun way to do it.
I agree that it won't make a huge difference how you break in a modern car, but that "moto man website" does say some extremely controversial things, but I think that's why it's good that we talk about it and see other perspectives..
5/16/10, 05:24 AM
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I agree, but "increasing the speed of the air (ft/s)" and "increasing the volume of air actually passing through the port (cfm)" do not mean the same thing.
Anytime air passes through a smaller area, it must speed up, but the increased pressure in the narrow area (which is causing it to go faster), will cause less air, overall, to move through that opening.
Anytime air passes through a smaller area, it must speed up, but the increased pressure in the narrow area (which is causing it to go faster), will cause less air, overall, to move through that opening.
5/16/10, 05:28 AM
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Another counter-intuitive example has to do with turbulent flow. While turbulence generally would mean more drag (because more energy goes into 'spinning' the air), golf ***** have dimples to create turbulence because it reduces drag.
5/16/10, 05:32 AM
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