Originally Posted by Evan_P

Where did this thread come from? A turbo gas engine will probably make more HP than a turbo diesel, but no way in hell will it make more torque. With a truck application, HP really isn't on most people's minds. For a truck it more about torque and producing torque at lower RPM's. That's what most people look for at least. This brings me to your point of 20 PSI of boost in a gas engine and 20 PSI in a diesel. You may get more HP out of the gasser, but almost guaranteed you won't come close to that 800ft-lb of torque. And even if it did it wouldn't be making it till much higher in the RPM range. That 800ft-lb in the diesel, which I assume is pointing towards the 6.7 powerstroke, is there at 1600 RPM. In a gasser the turbo wouldn't even be close to spooling up. The other thing to think about is the other work required to run these boost levels. With most diesels, other than some tuning, and maybe injectors, you can run that turbo at 20 PSI all day long and still get decent fuel mileage. Withe that gasser, in most engines, you will be rebuilding the entire bottom end to handle that much boost at the RPM's that would produce power like the diesel. Not to mention, once the turbo is spooled up to that 20 PSI the engine will be at a much higher RPM requiring much more fuel to be used. So at the end of the day, diesel's do NOT suck. They have their well earned place. Saying that they need turbo's to make power is valid. HOWEVER, the trend of today's gas engines seems to be creating power with turbo's as well so you can't just dog of the diesels anymore.

Originally Posted by 85e150six4mtod

You are moving into troll territory.

Your other post is a fine display of your genius and broad understanding of the internal combustion engine, on par with your understanding of the English language and it's uses.

https://www.ford-trucks.com/forums/1...ine-power.html

My guess is that you are 14.

Originally Posted by 85e150six4mtod

You are moving into troll territory.

Your other post is a fine display of your genius and broad understanding of the internal combustion engine, on par with your understanding of the English language and it's uses.

https://www.ford-trucks.com/forums/1...ine-power.html

My guess is that you are 14.

Originally Posted by tjc transport

20 lbs of boost on a 4 cylinder will give you 400 hp and 200 lbs torque at 9,000 rpm.
a naturally aspirated 7.3 only makes 185 hp at 3000 rpm, but it also makes 360 lbs torque at 1400 rpm. so while it is not a race car, it will do anything you ask it to do. just not fast.

Originally Posted by Texas Chain Ring

1/4. who races 1/8th of a mile? aha!! 14 year olds. <snicker>

jk.

Originally Posted by jrwhitmire

Really talking about 2 forms of power. An engine with torque down low is better for a truck, that's why the 4.9 six is so much better in a truck than a 5.0, unless you're using the truck as a car.

I have an old ('89) international with the non-turbo 7.3 IDI, (same as the Ford pickups of this era) and regularly make the rum between Philly and DC @ 25,000 lbs. with 185 HP.

Also have some experience with installing turbo's on gas engines, and I can tell you fuel mileage will decrease, due to the exhaust restriction caused by the turbine at low throttle openings and no boost. A larger turbo will be less restrictive, but then it will come on boost later. Proper turbo sizing is a very important step, and probably the first step skipped on most installations.

Originally Posted by 92blue on uhhhh blue

a lot of people around my parts as we dont have enough room for a full 1/4 mile strip. and **** u im not 14

Originally Posted by 92blue on uhhhh blue

a lot of people around my parts as we dont have enough room for a full 1/4 mile strip. and **** u im not 14