Ford 7.3 gas chassis dyno

EFI

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....or you can get a 14 year old LS7 and do a cam swap and make 600.

I don’t think this is progress.
It's not progress because it wasn't mean to be progress to begin with. They designed this engine to make the power and torque as needed in a run of the mill (albeit expensive) work truck not an exotic aluminum high revving sports car.

 
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engineermike

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It's not progress because it wasn't mean to be progress to begin with. They designed this engine to make the power and torque as needed in a run of the mill (albeit expensive) work truck not an exotic aluminum high revving sports car.
While I agree with you, there are some that wholeheartedly believe this motor is, in fact, ford’s way of sneaking some sort of race engine-in-disguise out to the public.
 
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engineermike

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From what I understand those LS7s are ticking time bombs. Not enough guide for the exhaust valves, or something? You're probably going to want to fix that issue. And if you are adding a cam with greater lift than stock, beware that not all the fixes will take care of the issues with valves dropping and destroying the engine.
Ok so 14 years later, ford builds an engine with 75 hp less from 20 more cid. Maybe they’ll be more reliable or maybe not, only time will tell. My point is that saying this new ford engine has great potential, all you have to do is change the compression displacement cam porting tune intake manifold and exhaust and boom! 600 hp is a bit ridiculous. The LS7 did it a long time ago with way less parts required.
 

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While I agree with you, there are some that wholeheartedly believe this motor is, in fact, ford’s way of sneaking some sort of race engine-in-disguise out to the public.
I can definitely see them doing something like that, however in this day and age of fancy engines it's hard to see an iron block pushrod engine being this "race engine" in disguise. I could believe the R Voodoo engine as being this.
 

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Ok so 14 years later, ford builds an engine with 75 hp less from 20 more cid. Maybe they’ll be more reliable or maybe not, only time will tell. My point is that saying this new ford engine has great potential, all you have to do is change the compression displacement cam porting tune intake manifold and exhaust and boom! 600 hp is a bit ridiculous. The LS7 did it a long time ago with way less parts required.
I don't know why you think a truck engine and a Corvette engine should be the same. It's obvious that Ford knows how to build engines with 100 hp per liter naturally aspirated as they have done that. The LS7 doesn't make much HP for being 7 liters.
 


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engineermike

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I don't know why you think a truck engine and a Corvette engine should be the same....
I don’t! That’s my point, actually. The 7.3 isn’t a performance engine.
 

I Bleed Ford Blue

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I don’t! That’s my point, actually. The 7.3 isn’t a performance engine.
Correct, it's not, but given the right parts, it could be. And that's all I was trying to say.
 

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The 7.3 engine is so new. I can hardly wait for two more years to see what the 7.3 engine will be like. Be fun to see a race version in a Fox Mustang.
so tell us... instead of trying to sound cool
 

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Ok so 14 years later, ford builds an engine with 75 hp less from 20 more cid. Maybe they’ll be more reliable or maybe not, only time will tell. My point is that saying this new ford engine has great potential, all you have to do is change the compression displacement cam porting tune intake manifold and exhaust and boom! 600 hp is a bit ridiculous. The LS7 did it a long time ago with way less parts required.
what kind of power are gm's truck engines making? Because thats the real comparison.
 
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engineermike

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I agree. Truck motor vs truck motor the 7.3 looks pretty good. But a race motor it is not...
 

Strokerswild

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Did someone say '7.3 in a Foxbody'?

 

I Bleed Ford Blue

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what kind of power are gm's truck engines making? Because thats the real comparison.
Gm also brought out a new gas truck engine for 2020 it's basically a larger displacement LS, it's a 6.6L and it makes 401 hp and 464 tq, slightly less than the 7.3 from ford.
 
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Shifting_Gears

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Did someone say '7.3 in a Foxbody'?

That’s not possible!11

It’ll never work because it’s just a truck motor! That’s fake news and camera magic!



Haha. Cool to see the first (I’m guessing) confirmed swap.
 
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engineermike

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Who said it wasn’t possible?

I suppose installing any ole truck motor into a 2700 lb car makes it an instant race motor.
 

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I wonder how long it will be before we see some aftermarket heads and intake for the 7.3.
 

 
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