Ask the engineer for the new 6.2l gas engine!
Junior User
Joined: Feb 2010
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Tom - the shape of the 6.2L torque curve is slightly more peaky. Peak torque is at 4250rp, and red line is at 6000rpm.
However, the 6.2L torque is much higher than the 5.4L throughout the engine speed range.
At no point do they cross.
The VCT is different. The modular engines use a dual equal oil pressure actuated VCT mechanism, while the new 6.2L uses a dual equal cam torque actuated VCT mechanism.
However, the 6.2L torque is much higher than the 5.4L throughout the engine speed range.
At no point do they cross.
The VCT is different. The modular engines use a dual equal oil pressure actuated VCT mechanism, while the new 6.2L uses a dual equal cam torque actuated VCT mechanism.
New User
Joined: Apr 2009
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Hi Mike! And welcome! I just had to ask, why was the decision made to fade the monster 6.8L V10 out! I mean, like you stated you can't replace displacement! For a gas motor i thought it was the perfect fit for the superduty! And is there any future plans for a larger gas engine bigger than the 6.2L?
Super Moderator
Joined: Aug 2003
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From: Isanti, MN
Also, why the change in technology? Reliability? Capability? Speed?
Senior User
Joined: Aug 2009
Posts: 246
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From: Westerville, Ohio
Hi Adrian - thanks for the welcome. It's 8:50pm here in SE Michigan.
To answer your questions.
To answer your questions.
- The new 6.2L is all new. It shares nothing with any of the other V8 or V6 engines in the Ford Powertrain line up. The bore centers are 115mm, compared with the Modular 100mm bore centers. This allows us to have a relatively large 102mm bore, and make decent power from a 2 valve per cylinder engine.
The 6.8L started out as a 2 valve per cylinder and was later upgraded to a 3-valve which created more power. Wouldn't this reasoning hold true for the 6.2L as well?
Thanks,
Stew
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Lead Driver
Joined: Jul 2007
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From: Rhode Island
Does the 6.2 use the "cam-within-a-cam" technology like the GM and Chrysler OHV V8s to achieve independent exhaust/intake timing with just one cam per head, or is it just standard non-independent VCT?
So the way I understand it, the engine is a SOHC, 2 valve per cylinder, 2 sparkplug per cylinder engine?
@Ex03AK, Chrysler and GM have proven its possible to get tremendous power out of their 2 valve OHV V8s. I think it will be interesting to see just how much power Ford can extract from this design.
So the way I understand it, the engine is a SOHC, 2 valve per cylinder, 2 sparkplug per cylinder engine?
@Ex03AK, Chrysler and GM have proven its possible to get tremendous power out of their 2 valve OHV V8s. I think it will be interesting to see just how much power Ford can extract from this design.
Junior User
Joined: Feb 2010
Posts: 84
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Tom - the VCT system (cam torque actuated) is used on the 3.0L Escape and Fusion engines currently. Because the system used camshaft torsional energy to phase the cams, rather than oil pressure, you can run with a smaller oil pump on the engine, reducing engine friction and therefore improving fuel economy. The cams can also be phased a lower engine speeds.
Junior User
Joined: Feb 2010
Posts: 84
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Stew, anything is possible. Horsepower is directly correlated to airflow, which is strongly governed by valve area. The more valve area (lift/valve diameter/number of valves) the more airflow, and the more power you get. Torque doesn't really respond much though, and is more a function of tuning (cam phasing and runner lengths) and displacement.
Junior User
Joined: Feb 2010
Posts: 84
Likes: 3
Bruce, click on these links (or cut and paste);
2011 FORD SUPER DUTY BOASTS 6.2-LITER GAS ENGINE .: News
Product Press Info | Ford Motor Company Newsroom
2011 FORD SUPER DUTY BOASTS 6.2-LITER GAS ENGINE .: News
Product Press Info | Ford Motor Company Newsroom