No Replacement For Displacement?

[Blmpkn]

Cosworth isn't really Ford though.

True, but they both could of made some money off selling us crap they gave europe!

 

[Dirtman]

Like 38 bucks?

 

[Blmpkn]

I'd guess 40 minimum.

 

[cbxer55]

Stickers and cup holders

Don't forget BIG wings and splitters.

 

[85_Ranger4x4]

Like 38 bucks?

It would have probably been easier/cheaper to tweak the Cosworth setup than to devise the SOHC timing chain setup...

Or just dump the whole thing for V6 Duratec.

 

[Broosedamoose]

The Highlander is a 2008. So in todays engines with modern technology that saying is no longer true. A 4.0L is 4 liters of air and 3.8L is only .2 liters difference. Isn't displacement the amount of air the piston displaces? Her Highlander kills my truck on acceleration! I understand that hers has DOHC but displacement is displacement! Adding turbos or super chargers changes the playing field. I just think it sucks my 4.0L has so much less Hp. than her 3.8L! Ford could have done better I think. Thanks for all the input!

 

[Dirtman]

The Highlander is a 2008. So in todays engines with modern technology that saying is no longer true. A 4.0L is 4 liters of air and 3.8L is only .2 liters difference. Isn't displacement the amount of air the piston displaces? Her Highlander kills my truck on acceleration! I understand that hers has DOHC but displacement is displacement! Adding turbos or super chargers changes the playing field. I just think it sucks my 4.0L has so much less Hp. than her 3.8L! Ford could have done better I think. Thanks for all the input!

The cylinder displacement doesn't mean anything if the heads aren't capable of flowing that air through them. This is where quad cams and variable valve timing comes in real handy. Also compression ratio, the more you can squeeze that air the better. Vvt systems can run with higher compression and still use regular gas.

 

[RonD]

Air fuel ratio is still the limiting factor
Larger displacement engines generate more power because they can pull in more air so can burn more fuel and release more energy
Boost forces in more air so in effect increases the displacement allowing the engine to burn more fuel and release more energy

In either case "there is no replacement for displacement" because that's how you release energy from fuels

 

[Ranger850]

Wouldn't gearing also be a factor? 4.10:1 vs 3.33:1 or whatever the Highlander is vs whatever the Ranger is

 

[holyford86]

Air flow efficiency is a thing too, ford was making 3 liter naturally aspirated engines in the late 80s and early 90s that were around 200hp. I've got a supercharged 4.0 OHV that is around that horsepower. It's way more useful in a truck than that 3.0 would ever think of being because of the powerband though. (I'll find out if this is actually true soon enough, haha)

 

[Snoranger]

I was going to try to prove a point about the advancements in technology, but I don’t think the 2.9L ever got any better...

 

[alwaysFlOoReD]

Where is PJ?....lol

 

[Snoranger]

Where is PJ?....lol

I haven’t talked to him in about a month... I sent him a few mom jokes last week, but he never responded.

 

[dvdswan]

Everybody knows that its chrome that gets you home. Not cubic inches.

 

[Eddo Rogue]

My Yamaha R1 is 998ccs (.98L) and makes 158hp. The power starts to really come on around 7,000rpm. I usually shift around 13,500 rpm. Torque is dismal.

Displacement is just the easy, lazy way to power. Its kind of like a trained and tuned lil skinny guy lifting the same weight as a regular big fat guy.