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Old 10-30-2020, 07:10 PM   #1
metros11

 
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Is the Mustang going back to pushrod?

Allegedly...

https://www.thedrive.com/news/37374/...6JtKmH7I_lM2IQ
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Old 10-30-2020, 07:20 PM   #2
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Finally we can lay the "BuT The MUStanG oNLY HAS FiVe LETeRs hurr durr" trend to bed

Last edited by BluinSC; 10-30-2020 at 10:44 PM.
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Old 10-30-2020, 07:46 PM   #3
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Seems like a stretch, given their Ecoboost and downsizing trend.

But at the same time, they are slowly canning the Coyote on F150 and pushing hard on the Ecoboost 3.6, so it's possible that they are using another V8 so they have a V8 Mustang option.
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Old 10-30-2020, 08:27 PM   #4
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What is the benefit of a pushrod motor vs. an overhead cam motor? Seems like a step backwards (although I'm not that well versed on this so I might be way off)...
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Old 10-30-2020, 08:49 PM   #5
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What is the benefit of a pushrod motor vs. an overhead cam motor? Seems like a step backwards (although I'm not that well versed on this so I might be way off)...
Low end torque, weight, size, center of gravity, simplicity (and all their associated ancillary advantages) come to mind.

The only real disadvantage is that they can't rev very high because of the extra mechanical coupling (pushrods), everything else is negative hype.
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Old 10-30-2020, 09:33 PM   #6
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Quote:
Originally Posted by arpad_m View Post
Low end torque, weight, size, center of gravity, simplicity (and all their associated ancillary advantages) come to mind.

The only real disadvantage is that they can't rev very high because of the extra mechanical coupling (pushrods), everything else is negative hype.
Power per litre also tends to be higher from the factory with DOHC engines, which is good for countries with displacement tax. In North America, it's a moot argument.

But yeah, pushrod engines still exist for a reason. Here is an Engineering Explained video for a quick summary:

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Old 10-30-2020, 09:40 PM   #7
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I hope ford does it and forces gm to put the LT3 into production for the camaro.
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Old 10-30-2020, 09:49 PM   #8
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DOHC engines are expensive to make and top-heavy.

The timing chain kit gets very big and complex and the heads are huge with nearly 2x the moving parts.
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Old 10-30-2020, 10:52 PM   #9
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I hope ford does it and forces gm to put the LT3 into production for the camaro.
Baby steps, let's start of with LT2.
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Old 10-30-2020, 11:10 PM   #10
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That’s a good video... how do nascar engines rev so high? I think 9k if I remember
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Old 10-30-2020, 11:18 PM   #11
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Baby steps, let's start of with LT2.
Well I doubt the LT2 would make the power of a ford 6.8?
Anyways, the Camaro is running out time- no more pulling punches.
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Old 10-31-2020, 12:52 AM   #12
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To be devil's advocate for a second, GM themself has made and is making DOHC V8s. Remember the Northstar? Supposedly a pretty solid engine with the correct head bolts. Now we have the Blackwing 4.2TT which looks pretty awesome as well.

Quote:
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That’s a good video... how do NASCAR engines rev so high? I think 9k if I remember
When you don't have to have the engine last hundreds of thousands of miles, be daily-friendly, and the budget isn't an issue, anything is possible.
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Old 10-31-2020, 06:12 AM   #13
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Lubrication is also another challenge with DOHC engines.
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Old 10-31-2020, 04:13 PM   #14
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Coyote engines are garbage anyway. They're tapped out as far as power and reliability. Ford would have to up the displacement again and even then they'll be sacrificing reliability. Look at the Doodoo engine. That thing was swamped with issues at 526 HP. Meanwhile both GM and Dodge at 6.2 and 6.4 respectively are easily in the upper 400 HP range without any of those issues. And they could still go higher in HP or increase displacement. I doubt Ford can push past 480 HP on a non-special edition non-limited production Mustang and get away with it. They'll be blowing up left and right worse than the GT350s did.
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