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Trying to decide on Ecoboost or 5.0

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Old 11-10-2017, 06:02 AM
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The 3.5 eco boost made it's debut in the 2011 f150 just like the 5.0 coyote. Or if you want to try to group all eco boosts together from cars to trucks. Then you can also group the 5.0 in with all the other modular Motors that ford has been building since the mid 90s. But once again the eco boost and the coyote have been out the same amount of time in the f150.

Originally Posted by Mark Miller
No kiddingSome one said the 5.0 Coyote has been around forever and would trust it more then the Eco Boost.When in fact the Eco Boost was out in 2010 before the Coyote 5.0 understand?
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Old 11-10-2017, 06:10 AM
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I didn't say anything bad about the eco boost. I said eco boost owners get pissy about everything. Two different things. Eco boost owners argue about what grade of fuel to run in their truck. Haha you Know the truth!!!!!! You sound like a nut job. Dude it was a joke. Take the tinfoil off your head and take a cold shower. Haha




Originally Posted by Mark Miller
Problem is you never have anything nice to say about the Eco Boost,the old saying goes " Can't say anything nice don't say anything at all ".So you say you were joking but i and others know the truth!!!!The 3.5 is based off the 3.7?How would that be the 3.5 was around before the 3.7 came out in the 2011 F-150?

Last edited by 69587; 11-10-2017 at 06:16 AM.
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Old 11-10-2017, 07:20 AM
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Originally Posted by Bobcat
As pointed out , the 5.0 has been around forever , and to me , the 3.5L is an unknown . I`ve had several turbo engines in the past and the biggest problem I`ve seen is people driving them hard or on the highway , getting off and shutting the engine down w/o letting the turbo spool down or cool down for several minutes . I always waited and that`s probably why I had no turbo problems .
The truck I`m looking at is a new 2017 model , so the Ecoboost should be the latest version .

Thanks for the links to the various threads .... now to do more homework and test drives.
Why would you need to let it idle? I can see doing this historically before turbos were water cooled, but the Ecoboost has coolant flowing thru the turbos
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Old 11-10-2017, 10:14 AM
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My feeling is that if a turbo has been run hard and then is shut down without a cool down period , the heat generated isn`t dissipated . When the engine is shut off , obviously all coolant and oil flow stops and there is nothing to carry off any heat . If the turbo has been used hard , letting it idle for a minute or so also lets the turbo spool down to "normal" idle rpm . You wouldn`t shut your engine off while its still at 3000 rpm . A turbo runs at much higher rpm and for longevity , I feel it should go back to idle rpm before shutting down.
Will it fail for certain if you don`t do that ? No , but it will help the turbo life by doing that . As pointed out , most turbos are now water cooled and don`t need to be "babied" like the oil cooled ones , however , I still let them come back to idle before shutting the engine off . Just my belief based in 200,000 + miles on turbo engines.
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Old 11-10-2017, 10:25 AM
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Originally Posted by leje0306
Why would you need to let it idle? I can see doing this historically before turbos were water cooled, but the Ecoboost has coolant flowing thru the turbos
The old thinking of turbo timers and allowing a cool down does not apply anymore. Besides who goes from full boost to shutting off anyway? No one.
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Old 11-10-2017, 10:35 AM
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Originally Posted by Bobcat
My feeling is that if a turbo has been run hard and then is shut down without a cool down period , the heat generated isn`t dissipated . When the engine is shut off , obviously all coolant and oil flow stops and there is nothing to carry off any heat . If the turbo has been used hard , letting it idle for a minute or so also lets the turbo spool down to "normal" idle rpm . You wouldn`t shut your engine off while its still at 3000 rpm . A turbo runs at much higher rpm and for longevity , I feel it should go back to idle rpm before shutting down.
Will it fail for certain if you don`t do that ? No , but it will help the turbo life by doing that . As pointed out , most turbos are now water cooled and don`t need to be "babied" like the oil cooled ones , however , I still let them come back to idle before shutting the engine off . Just my belief based in 200,000 + miles on turbo engines.
You certainly won't hurt anything by letting the truck idle for a few minutes, but our turbo's are water cooled and the system is valved so that coolant can still circulate and continue to cool the turbo's after the engine is shut off.
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Old 11-10-2017, 10:05 PM
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Bobcat, welcome to the F150 forum.

I haven't read all 50+ posts in your thread, here, but the 5.0 in these trucks is an all-new design released in production vehicles in 2011, and an engine which borrows the best from famous racing V8s and which for 2018 makes 400HP!... DOHC cylinder heads, 4 valves per cylinder, 4-bolt mains (some say a total of 6! the last two of which are cross-bolted), all-aluminum block and heads, a forged crankshaft, sintered-metal conrods, hypereutectic slugs, a baffled, 8-quart sump, coil-on-plug ignition and port fuel injection.

Once I'd read the story of the Coyote's development, I tossed the idea of purchasing an EcoBoost, a terrific engine in it's own right especially if you're fond of turbocharging. There are two Ecos offered in the F150; a 2.7 and the 3.5.
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Old 11-11-2017, 01:59 AM
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Originally Posted by MR.TOPAZ06
I didn't say anything bad about the eco boost. I said eco boost owners get pissy about everything. Two different things. Eco boost owners argue about what grade of fuel to run in their truck. Haha you Know the truth!!!!!! You sound like a nut job. Dude it was a joke. Take the tinfoil off your head and take a cold shower. Haha
You have said you wouldn't buy a Eco Boost F-150 why is that?I sound like a nut job do you re read stuff you say on here?
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Old 11-11-2017, 02:21 AM
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Originally Posted by MR.TOPAZ06
The 3.5 eco boost made it's debut in the 2011 f150 just like the 5.0 coyote. Or if you want to try to group all eco boosts together from cars to trucks. Then you can also group the 5.0 in with all the other modular Motors that ford has been building since the mid 90s. But once again the eco boost and the coyote have been out the same amount of time in the f150.
4.6L 4 valve Modular and 5.0 Coyote are not nearly as identical as a 3.5L Eco Boost Taurus SHO and 3.5L Eco Boost F-150 engine are!!!5.0 Coyote has VVT does the 4.6 Modular 4 valve?Are the 5.0 and the 4.6 the same cubic inch?
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Old 11-11-2017, 02:32 AM
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Isn't this thread about which motor and not about the Titan or Tundra or...

Folks that brag on the Titan should go buy one and participate on the Titan forum so those with questions about an F150 can discuss them here on a F150 Forum.

Mark Miller: Quit feeding the troll please.

Last edited by idrive; 11-11-2017 at 07:32 AM.
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