6.2 test drive

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Aug 19, 2016 | 04:37 PM

#16

SDDL-UP

Laughing Gas

Joined: Sep 2013

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From: North Idaho

Gen2 6.2?

I'm glad there has been a performance improvement in the 6.2L Super Duty but I think that's 100% attributable to the new transmission. I think both horsepower and torque are exactly the same as last year.

Aug 19, 2016 | 05:43 PM

#17

AZFordLover

Tuned

Joined: Jun 2016

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Peak numbers are roughly the same but I believe the shape of the torque curve has improved. Someone said peak torque now occurs 700 RPM earlier, IIRC.

Aug 20, 2016 | 12:08 AM

#18

RainDesert

Cargo Master

Joined: Jan 2015

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From: Boise

Quote:

Originally Posted by SDDL-UP

Gen2 6.2. Max torque up to 430 at 3800 rpms as opposed to 405 at 4500. Done with larger valves and different cams. IMO this is the best improvement. The new F250 tranny will help, especially with MPGs.

Aug 20, 2016 | 05:13 AM

#19

tseekins

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Joined: Jan 2008

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From: Maine, Virginia

Quote:

Originally Posted by RainDesert

Sounds about like the 6.2L that was briefly used in the F-150. The 6.2L and the 3.5L ecoboost laid down very similar numbers.

Aug 20, 2016 | 05:51 AM

#20

troverman

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Joined: Apr 2013

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From: NH

Quote:

Originally Posted by RainDesert

Rain, curious where you got your info about bigger valves and different cams? Current 6.2 didn't seem to have additional room in the head for larger valves.

Aug 20, 2016 | 07:06 AM

#21

T diesel

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Joined: Nov 2011

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I'd like to see the head changes as well.
Wouldn't valves be considerd "core architecture?"

Aug 20, 2016 | 07:40 AM

#22

RainDesert

Cargo Master

Joined: Jan 2015

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From: Boise

Here is a link that mentions it. We have talked about the larger valves for months in various threads. I have not spent much time digging for the info about it, but just know it has been reported for a while and folks have been talking about it.
The 2017 Ford Super Duty - Will History Repeat Itself?
As far as cams, I know the raptor had different cams and I'm not sure how this new version of the 6.2 would not.

Aug 20, 2016 | 07:42 AM

#23

RainDesert

Cargo Master

Joined: Jan 2015

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From: Boise

Quote:

Originally Posted by T diesel

I'd like to see the head changes as well.
Wouldn't valves be considerd "core architecture?"

I would think so too, but it has been reported. Maybe it isn't true. One thing I know is that the new 6.2 will be even better.

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Aug 20, 2016 | 07:49 AM

#24

RainDesert

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Joined: Jan 2015

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From: Boise

Quote:

Originally Posted by troverman

Rain, curious where you got your info about bigger valves and different cams? Current 6.2 didn't seem to have additional room in the head for larger valves.

Just found this right off of Ford site about the cams:
Torque rules when pulling big loads. And no other gas-powered full-size pickup can match the 430 lb.-ft. of torque of the Super Duty® 6.2L flex-fuel V8.* Improved tuning and camshaft configurations increase peak torque at lower rpm, enabling the 6.2L to generate higher torque throughout the midrange and operate more efficiently at lower speeds. Power delivery is more responsive. And shifting is more seamless with the new Ford TorqShift® G 6-speed transmission in the F-250. And more good news: For the first time, the optional Live-Drive Power Takeoff (PTO) Provision with Mobile Mode is available with the 6.2L engine (F-350 models). Now you can have PTO capability in a Super Duty with either diesel or gas power

Aug 20, 2016 | 08:02 AM

#25

RainDesert

Cargo Master

Joined: Jan 2015

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From: Boise

I just saw this in a Truck Trend write up:
Ford hasn’t released many details about improvements or power outputs of these engines, but we do know that the SOHC 6.2L V-8 will benefit from larger intake valves and dual-equal variable cam timing.
UPDATED w/ Video: 2017 Ford F-Series Super Duty - First Look

Aug 20, 2016 | 09:01 AM

#26

troverman

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Joined: Apr 2013

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From: NH

Quote:

Originally Posted by RainDesert

Rain, thanks for the research. I had seen the Ford & Truck Trend articles. The Truck Trend is garbage because of course the 6.2L had dual-equal variable cam timing (De-VCT) right from the start in 2011. The 2011 article also mentions large valves. Much of the 6.2L's design is based upon the large valve design. They are canted to allow room for a larger diameter. This is why the dual plugs are required.

I believe Ford when they say the cams are changed. The old F-150/Raptor 6.2L used different cams to make more power.