Hi all. I drive a 2009 v6 mustang. Most of you probably know this, but for the sake of conversation, my car has a 4.0 liter SOHC 2v v6 in it with 210 hp and 240 ft.lbs. of torque.

The new sixxer camaro sports a 3.6 liter v6 DOHC 4v with 304 hp and 273 ft.lbs. torque.

So here's my question. I know the mustang engine is a bit dated and the new camaro engine is pretty high tech, but what specifically is squeezing out the extra torque?

I'm not as interested in horsepower. (As legend Carroll Shelby pointed out, "Horsepower sells cars, torque wins races.") Cough::2010 camaro::cough.

 

well we are talking about 2 completely different engines here.they have different heads,cams,intakes,etc i can go on all day long

 

Please do. I'm just very curious as to what specific parts provide the increased torque.

 

Fuel injection directly into the combustion chamber of each cylinder:

http://en.wikipedia.org/wiki/Gasolin...#Later_systems

From what I've read, torque of the DI engine is higher than conventional versions of the same, but it seems to come at a higher peak RPM...

Also other things per Ali's comments...

 

Like Ali said... its apples and oranges... I wish it were as simple as 'GM makes a better product" but its more involved. The heads flow better, distributer is in the correct location, exhaust helps it breathe better, etc... There are no specific parts that cause this, its the whole thing.
For one, one has 2 over head cams while the other has only one. One had 2 valves per cyl while the other has four. This is all part of the breathing, if it breathes better it performs better.

 

yeah theres ALOT that goes together as the items listed above. And here's the very short answer.... GM has usually been better making very well performing naturally aspirated engines.

Ford keeps their costs low to continue to make their cars like the mustang affordable. PART of this cost is research and developement. Its not very hard to take a big
(for a V6 ) 4.0 liter engine and get 215hp out of it. Look at Honda, Nissan, Toyota...they have 3.5L engines that make 250HP-290HP and near the same in Torque but it comes at a pretty high expense and that price transfers to those cars.

The Stangs sixer and the current V8 even look messier than the old LS1 and other makers newer V6's that are nice neat and cleaner

 

It all about production and manufacturing costs. In most cases manufacturing has to catch up with new designs. The know how to build a 300 HP 3.5 V-6 has been around since the 80's back then it was a 4 banger push 200 HP AKA the quad four. You just need a good reason to build it and enough volume to tool it. The fact that this motor was already in the Caddy helps with the tooling cost. Had it not been for the Caddy trying to keep up with BMW we would not have a 300 hp V6

 

Horsepower is a function of torque and engine speed. An engine is basically an air pump and the more air and fuel it can ingest the more power it will make. A high revving lower torque engine can make as much or more power than a high torque low RPM engine, depending on how they are configured. What is really important is the torque available at the wheels. Assuming power is available it can be translated to torque by using the proper gearing.
Going to extremes, a 2005, 3L Formula 1 V10 engine was good for almost 1000 HP @ 19,000 RPM, normally aspirated. How did they do it, titanium and aluminum construction, crazy flowing heads, direct injection, pneumatic valve springs, and tons of money.

 

Well, All of the above and the fact that it has this nifty little bolt on item that the Mustang does not...