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Old 03-08-2020, 09:20 PM   #1
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THOR #18179
New 7.3 Liter Thoughts?

Iíll be purchasing a Thor Windsport or Hurricane 33x within the next 10 months, so I figure Iíll have a choice between the known V10 and the new 7.3-liter V8 with the new suspension package. I like the idea of the new suspension but am a little leery about an unproven power plant. However, from what Iíve read the 7.3 liter is a revamp of an older pushrod engine. So, Iíd like your thoughts and opinions on buying a new motorhome with a first-year power plant. The V8 is supposed to get better gas mileage, but I canít see that happening without the newer 10 speed gearbox that motorhomes will not be getting on the new 2020 F53 chassis.
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Old 03-08-2020, 11:39 PM   #2
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the new 7.3 is not revamp. its a new engine, yes it has pushrods but ford explained it had to do with the requirements for the engine. its designed to be a heavy duty engine.


google it . just one below


https://www.roadandtrack.com/new-car...details-specs/
https://media.ford.com/content/fordm...ty-pickup.html
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Old 03-09-2020, 12:19 AM   #3
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THOR #1150
There is a very lengthy discussion on that engine on the forums here:
https://www.thorforums.com/forums/f1...ons-15530.html
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Old 03-09-2020, 12:50 AM   #4
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i imagine sales people, not being the best informed are a reason for the revamped remark


or a way to sell out the v10 stock units.


its a whole new enchilada and is designed for heavy duty constant high power use. it will be interesting to see how it farms out in new coaches

plus add in the new f53 chassis.
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Old 03-09-2020, 01:47 PM   #5
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THOR #17954
Quote:
Originally Posted by Thor71 View Post
Iíll be purchasing a Thor Windsport or Hurricane 33x within the next 10 months, so I figure Iíll have a choice between the known V10 and the new 7.3-liter V8 with the new suspension package. I like the idea of the new suspension but am a little leery about an unproven power plant. However, from what Iíve read the 7.3 liter is a revamp of an older pushrod engine. So, Iíd like your thoughts and opinions on buying a new motorhome with a first-year power plant. The V8 is supposed to get better gas mileage, but I canít see that happening without the newer 10 speed gearbox that motorhomes will not be getting on the new 2020 F53 chassis.
Well there eventually won't be a choice here. The new V8 is Ford's future. Time will tell us about reliability. One thing the public is missing is the emissions issue. The new V8 is a much cleaner burn. Now the speed torque curve also set much lower when it comes to RPM. Thus the claim for better fuel milage. As with the reliability issue time will be the judge.
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Old 03-09-2020, 02:33 PM   #6
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Fuel economy should be better at least due to higher compression ratio and lower friction.

Low RPMs is often a means to an end, not what causes engines to run more efficient in itself. Higher RPMs can be more efficient given other conditions. We should not conclude much based on RPMs alone.
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Old 03-30-2020, 11:27 PM   #7
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Originally Posted by Chance View Post
Fuel economy should be better at least due to higher compression ratio and lower friction.



Low RPMs is often a means to an end, not what causes engines to run more efficient in itself. Higher RPMs can be more efficient given other conditions. We should not conclude much based on RPMs alone.


True Chance. I wonder if the new V8 had anything to do with the long needed F53 chassis change. Have you heard or read anything about it???
Be safe, God bless
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Old 03-30-2020, 11:32 PM   #8
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well i drove a f350 the other day crew cab with the 7.3 in it. TQ is pretty awesome, as in really good seat of pants grunt. smooth to,
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