How much strain is it on a 5.0 to drive it 8hrs?

TheUNZippee! · November 13th, 2011, 10:43 PM

Fuck bearings!

Durr4456 · November 13th, 2011, 10:45 PM

Originally Posted by TheUNZippee!

Fuck bearings!

If your bearings heard you say that they'd be disappointed and maybe fall out

TheUNZippee! · November 13th, 2011, 10:46 PM

Originally Posted by Durr4456

If your bearings heard you say that they'd be disappointed and maybe fall out

Bring it! I beat the piss out of mine every time I'm in it- when it finally pops, it'll be the excuse and impetus to rebuild and improve.

69fastback · November 13th, 2011, 10:55 PM

Zip, I'm relatively sure your mod motor has slightly better oil control than our old turds...lol

Durr4456 · November 13th, 2011, 10:55 PM

Touché

TheUNZippee! · November 13th, 2011, 10:57 PM

Originally Posted by 69fastback

Zip, I'm relatively sure your mod motor has slightly better oil control than our old turds...lol

I know. Unfortunately

69fastback · November 13th, 2011, 11:03 PM

I drive mine down the highway a lot. A lot of weekends, I may put 300-400 miles on it, and with my 4 speed, and 4.10s, I do 57 MPH the whole time...lol. That's 2800-2900 RPMs. My engine has good bearings, modified oil galleys, and all that BS to help improve oil control, but a constant 3500 RPMs is hard on them.

Notcho · November 13th, 2011, 11:46 PM

Originally Posted by 69fastback

I drive mine down the highway a lot. A lot of weekends, I may put 300-400 miles on it, and with my 4 speed, and 4.10s, I do 57 MPH the whole time...lol. That's 2800-2900 RPMs. My engine has good bearings, modified oil galleys, and all that BS to help improve oil control, but a constant 3500 RPMs is hard on them.

True, newer engines are built and assembled with much better precision than was possible back in the '60s and '70s.

But still, a lot of the older stuff was built from the factory with low gears and no overdrive, so by design they turned a lot of RPMs on the highway.. not just cars, but heavy trucks too. Gas was cheap, so high gears and overdrives weren't necessary. And yet the engines held up to the highway speeds, as well as people running the shit out of them..

I'd say the rod bearings really catch the most hell when you run too low octane fuel and it pings. It will ping even more when it's under a load. I've seen bearings worn down to the copper without many miles on them... newer engines have anti knock sensors, and will pull timing so that it doesn't ping.

69fastback · November 14th, 2011, 08:42 AM

Originally Posted by 89 5.0 LX

True, newer engines are built and assembled with much better precision than was possible back in the '60s and '70s.

But still, a lot of the older stuff was built from the factory with low gears and no overdrive, so by design they turned a lot of RPMs on the highway.. not just cars, but heavy trucks too. Gas was cheap, so high gears and overdrives weren't necessary. And yet the engines held up to the highway speeds, as well as people running the shit out of them..

I'd say the rod bearings really catch the most hell when you run too low octane fuel and it pings. It will ping even more when it's under a load. I've seen bearings worn down to the copper without many miles on them... newer engines have anti knock sensors, and will pull timing so that it doesn't ping.

I'm fully aware of how old cars perform down the highway....lol. Just because people drove them like that, does it mean it wasn't hard on it? I mean I beat the crap out of mine on the street, and track, but do it with the understanding that it does reduce the life. Also keep in mind that the speed limit was 55 back then. As I said, I can do 57 and keep it under 3000. People didn't drive around at 80 MPH like they do now.

extended periods of high RPM driving is hard on bearings. That's why a lot of the big horsepower builds use a different journal. So they can slow the bearing speed for a given RPM.

WickedSnake00 · November 14th, 2011, 09:22 AM

If my puny Dodge 2.0 SOHC can take 10 hours running at 2500 RPM, I think your 5.0 can handle it.

Plus as others said, these engines were designed to take a beating. We have engines here at work they run for 50 hours straight at full rated power. We're talking big engines running at WOT, 400+hp, 1500+ft-lb, and often they intentionally cause them to detonate just to see if they'll keep kicking.

And guess what. They do.

Hopefully Ford designs them to the same standards we do.

69fastback · November 14th, 2011, 09:27 AM

^^^^^^^ that's like comparing apples to oranges.

But at 2200 RPMs, drive that thing coast to coast 10 times without stopping, and you won't have any troubles. I'm talking about high RPMs for extended periods.

95Slobra · November 14th, 2011, 01:28 PM

i plan on not ever goin over 2300rpms..hopefully il be at 2k which is my fav to cruise on since i have 373 gears. Thanks guys for all the feedback

November 13th, 2011, 10:55 PM	#44
69fastback Premium Member 1969 Mustang Mach 1 6.824@101.61 Join Date: Aug 2006 Location: Oklahoma jackass, get to driving Posts: 5,573 iTrader: 0 reviews	Zip, I'm relatively sure your mod motor has slightly better oil control than our old turds...lol __________________ ./___ _ ____ ___ \. ( ]]] _ _ O _ _ [[[ ) \_ o _ _____ _ o _/ \|___\| ......... \|___\| http://www.youtube.com/watch?v=HyYU3...e_gdata_player

November 13th, 2011, 10:55 PM	#45
Durr4456 Zip wants me 2005 Mustang GT, 1967 GT Join Date: Mar 2011 Location: New Orleans Posts: 5,260 iTrader: 0 reviews	Touché __________________ The day I finish paying for my mustang will be a great day. Although I'm more likely to die before it happens. Don't be stupid like me! Zip loves my penis.

November 13th, 2011, 11:03 PM	#47
69fastback Premium Member 1969 Mustang Mach 1 6.824@101.61 Join Date: Aug 2006 Location: Oklahoma jackass, get to driving Posts: 5,573 iTrader: 0 reviews	I drive mine down the highway a lot. A lot of weekends, I may put 300-400 miles on it, and with my 4 speed, and 4.10s, I do 57 MPH the whole time...lol. That's 2800-2900 RPMs. My engine has good bearings, modified oil galleys, and all that BS to help improve oil control, but a constant 3500 RPMs is hard on them. __________________ ./___ _ ____ ___ \. ( ]]] _ _ O _ _ [[[ ) \_ o _ _____ _ o _/ \|___\| ......... \|___\| http://www.youtube.com/watch?v=HyYU3...e_gdata_player

November 14th, 2011, 09:22 AM	#50
WickedSnake00 MM's king of Neon's 404 - car not found 17.81@87 Join Date: Aug 2010 Location: Diesel Engine Capital of the World, Columbus, IN Posts: 7,376 iTrader: 0 reviews	If my puny Dodge 2.0 SOHC can take 10 hours running at 2500 RPM, I think your 5.0 can handle it. Plus as others said, these engines were designed to take a beating. We have engines here at work they run for 50 hours straight at full rated power. We're talking big engines running at WOT, 400+hp, 1500+ft-lb, and often they intentionally cause them to detonate just to see if they'll keep kicking. And guess what. They do. Hopefully Ford designs them to the same standards we do. __________________ Official Secondhand Snake Build Thread Here Looks Like a Cobra, Sounds Like a Cobra, Tastes Like a Cobra, Not a Cobra. For Sale: P71 Interceptor motor

November 14th, 2011, 09:27 AM	#51
69fastback Premium Member 1969 Mustang Mach 1 6.824@101.61 Join Date: Aug 2006 Location: Oklahoma jackass, get to driving Posts: 5,573 iTrader: 0 reviews	^^^^^^^ that's like comparing apples to oranges. But at 2200 RPMs, drive that thing coast to coast 10 times without stopping, and you won't have any troubles. I'm talking about high RPMs for extended periods. __________________ ./___ _ ____ ___ \. ( ]]] _ _ O _ _ [[[ ) \_ o _ _____ _ o _/ \|___\| ......... \|___\| http://www.youtube.com/watch?v=HyYU3...e_gdata_player

November 14th, 2011, 01:28 PM	#52
95Slobra Regular 1995 Mustang Gt Join Date: Sep 2011 Location: raleigh Posts: 218 iTrader: 0 reviews	i plan on not ever goin over 2300rpms..hopefully il be at 2k which is my fav to cruise on since i have 373 gears. Thanks guys for all the feedback __________________ *95' GT, Trickflow setup, Aluminum heads with 1:6 roller rockers, e303 cam, BBK shorties into Magnaflow exhaust, BBK cold air intake with 75maf, Highperformance waterpump w/ electric fans*

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