RHO vs Raptor vs Raptor R

[04Ram2500Hemi]

Raptors don't need more power, even a 3.5 EB, it needs stock Fox 3.2s and 804.A option for factory long travel if we are fantasizing. I'd pay for that.

You’re not wrong, but the 12 year old in me would still be ok with a TRX Redeye that puts out over 800hp. If 702hp in the TRX is good, 802hp would be better.

 

[EricM]

There are plenty of times when a 6000 lb truck can use more than 450 HP.

We aren't driving Powerwheels here either, where it's all go or all whoa. You can modulate the throttle on the larger engine to obtain a 600 HP level if desired.

 

[Badgertits]

Well, if you are limited to 6 cylinders, yes.

If you can run a larger engine, that's always going to make more power for less money.

Ford went from 450HP/510TQ on the TT 3.5L V6 to 720HP/640TQ on the S/C 5.2L V8. Using a less efficient power adder as well. The blower is consuming approx 75 HP and the V8 does not have DI either.

Run twin turbos on the 7.3L V8 and Ford could get over 1000 HP on pump gas while meeting emissions and providing a warranty.

GM just did the 1000+ HP TT V8 thing with the ZR1 with only 5.5L.
2025 ZR1 puts out 1064HP/828TQ.

Yeah I’m not arguing the case for it one way or the other, it’s just what IS not what “should be” as far as what’s being offered on the market today for “sport offroad trucks”

Obviously a larger displacement engine usually has the potential to make more power than a smaller displacement engine all else being equal. But there are drawbacks too.

But I mean regardless of displacement an inline 6 engine has historically been proven reliable stout format for performance….& displacement being equal I’m not entirely convinced cylinder count matters as much….6.7L worth of 6 cylinders makes a Cummins purr just fine lol

 

[Badgertits]

A ZR1 motor in a Raptor….now that would be something. I might actually pay R money for that.

Always an issue comparing performance engines used in car vs truck platforms. Usually gotta de-tune/tq mgmt etc to handle the power in combo w/ the added weight & longer/larger/heavier rotating parts all around.

there aren’t too many places/situations I can think of where a stock 3.5HO Raptor, a tuned 3.5HO or a Raptor R don’t have enough power lol, 1064hp in a Raptor truck running hard off-road would be like 4-5mpg…not gonna be able to go too far!

 

[Badgertits]

Well yeah, but they probably aren’t going to put an exact ford GT engine in a 80K Raptor. We can all wish i suppose lol..

Block/heads/forged rotating assembly (crank/pistons/rods) all shared between the GT & the Raptor, GT has notable larger turbos, different intake manifold, different oil system, different ECM & injectors

 

[18RaptorFox]

I am surprised Ford has not added the production 5.0L Ti-VCT V8’s dual direct+port fuel injection system to the 5.2L Predator yet. The DI works quite well at keeping knock down at higher cylinder pressures. I recall the flat plane 5.2 had to bleed off compression to stop knock on the 12:1 compression whereas the Coyote doesn’t need to since the ECU just favors direct injection if it senses too many events at a given load which cools off the intake charge. They could pulley down and add more boost to the 5.2 with pump gas if they added the gen 4 coyotes newer fuel injection system.

 

[EricM]

1064hp in a Raptor truck running hard off-road would be like 4-5mpg…not gonna be able to go too far!

Your typical family boat will burn a whole tank of fuel in 2 hours run WOT non-stop. Nobody does that though, and the tanks last more than a day.

Again- a turbo V8 is not a Powerwheel where it's either 1000 HP or nothing. The entire range of power is available to the driver. There has never once in my entire life when I thought to myself, "This vehicle I'm driving- it has too much power."

 

[EricM]

I am surprised Ford has not added the production 5.0L Ti-VCT V8’s dual direct+port fuel injection system to the 5.2L Predator yet. The DI works quite well at keeping knock down at higher cylinder pressures. I recall the flat plane 5.2 had to bleed off compression to stop knock on the 12:1 compression whereas the Coyote doesn’t need to since the ECU just favors direct injection if it senses too many events at a given load which cools off the intake charge. They could pulley down and add more boost to the 5.2 with pump gas if they added the gen 4 coyotes newer fuel injection system.

DI causes problems with the deposits on the valves.

It also makes it hard (or impossible at some point) to get more fuel delivery when you turn it up.

The GT500 Mustang guys didn't want either one of those "features" holding them back.

 

[EricM]

Obviously a larger displacement engine usually has the potential to make more power than a smaller displacement engine all else being equal. But there are drawbacks too.

What are the drawbacks other than more fuel consumed at WOT and more engine weight?

There are plenty of outlaw racing series out there and nobody runs I4s, I6s, or V6s. Cars, boats, trucks- when it's max effort and you can run any powerplant you want, they all run big displacement V8s, V10s, or V12s with boost.

 

[Nex]