Me Again
AZ - Summer in NW WA
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Joined: 09/26/2012
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Lantley wrote:"Where is it compared? When have you used a gas engine, with same displacement, on same hill with same load?"
It's kind of a mute point. The exhaust brake has become a standard feature on HD diesels. A feature that works well and is a real difference maker.
A feature that HD gassers simply don't have. There is no comparison to be made.
We don't need to get into load, displacement or any other factor.
The gasser does not have an exhaust brake. Ultimately no exhaust break is a deal breaker and a major shortcoming of a gas engine
What he ^^^^^ said!
2021 F150 2.7 Ecoboost - Summer Home 2017 Bighorn 3575el. Can Am Spyder RT-L Chrome, Kawasaki KRX1000. Retired and enjoying it! RIP DW 07-05-2021
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JRscooby
Indepmo
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AND THE GODS HAVE SPOKEN!
Yes, exhaust brakes are now standard on diesel. And it is a very good thing, because without one a diesel hasn't got the ****** of a gas engine half it's size.
But without comparison gas engine, with the standard close throttle, restrict air flowing in does not work as well as restricting the air coming out.
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Samsonsworld
West Texas
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Joined: 06/18/2015
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Of all the reasons I select a tow engine, exhaust brakes aren't even on the list.
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Lantley
Ellicott City, Maryland
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Samsonsworld wrote:Of all the reasons I select a tow engine, exhaust brakes aren't even on the list.
In the flat lands of Texas that is a reasonable thought.
If I were in Texas I may not be an exhaust brake fan either.
However the entire country is not flat. There are places where an exhaust brake is a must have and places where it is nice to have.
Fortunately we all have options and choices.
19'Duramax w/hips,12'Open Range,Titan Disc Brake
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Samsonsworld
West Texas
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Heard the same argument when I had my ecoboost. Towed all through New Mexico and southern Colorado and never had an issue.
Is the argument that the 7.3l isn't adequate or simply mine's bigger than yours? Because I find the whole thing pretty asinine.
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4x4ord
Alberta
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Joined: 12/23/2010
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There isn’t a hill I’ve been on that I would be afraid to descend pulling a 16000 lb rv with the 7.3 gasser. Low gear and 6000 rpm is a lot of engine braking.
2023 F350 SRW Platinum short box 4x4.
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cummins2014
Utah
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4x4ord wrote:There isn’t a hill I’ve been on that I would be afraid to descend pulling a 16000 lb rv with the 7.3 gasser. Low gear and 6000 rpm is a lot of engine braking.
You are a brave lad !!! Can't argue the fact of what a 7.3 gasser will ,or will not do , but I towed a fairly heavy fifth wheel many years with a 7.3 Powerstroke , no EB . Had a few white knuckle experiences coming of some of the hills in Utah, Idaho ,and Montana . Yes learned pretty quickly on how to come down some of those long grades . One example is the one coming from Ennis,MT to Virginia City , MT. It has the runaway ramp if needed .
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JRscooby
Indepmo
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cummins2014 wrote:4x4ord wrote:There isn’t a hill I’ve been on that I would be afraid to descend pulling a 16000 lb rv with the 7.3 gasser. Low gear and 6000 rpm is a lot of engine braking.
You are a brave lad !!! Can't argue the fact of what a 7.3 gasser will ,or will not do , but I towed a fairly heavy fifth wheel many years with a 7.3 Powerstroke , no EB . Had a few white knuckle experiences coming of some of the hills in Utah, Idaho ,and Montana . Yes learned pretty quickly on how to come down some of those long grades . One example is the one coming from Ennis,MT to Virginia City , MT. It has the runaway ramp if needed .
I have no doubt 7.3 gasser will hold back much more than 7.3 diesel with no engine brake. My question is will the Powerstroke, with exhaust brake added, slow any better than the 7.3 gasser.
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FishOnOne
The Great State of Texas
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Joined: 02/12/2011
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cummins2014 wrote:4x4ord wrote:There isn’t a hill I’ve been on that I would be afraid to descend pulling a 16000 lb rv with the 7.3 gasser. Low gear and 6000 rpm is a lot of engine braking.
You are a brave lad !!! Can't argue the fact of what a 7.3 gasser will ,or will not do , but I towed a fairly heavy fifth wheel many years with a 7.3 Powerstroke , no EB . Had a few white knuckle experiences coming of some of the hills in Utah, Idaho ,and Montana . Yes learned pretty quickly on how to come down some of those long grades . One example is the one coming from Ennis,MT to Virginia City , MT. It has the runaway ramp if needed .
There's no comparison of the 7.3 Gas with a throttle body, and transmission grade braking compared to a 7.3PSD that has absolutely no grade braking functions.
Bottom line...I'll take a 7.3 Gas over a 7.3PSD anyday for all towing applications.
'12 Ford Super Duty FX4 ELD CC 6.7 PSD 400HP 800ft/lbs "270k Miles"
'16 Sprinter 319MKS "Wide Body"
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goducks10
There
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Samsonsworld wrote:Of all the reasons I select a tow engine, exhaust brakes aren't even on the list.
It's 50% of why I did. Come down a 10% curvy grade for 5-8 miles towing heavy with a gasser and you might wish for one. Depends on where you tow I suppose. But they do help on the flat. My Ram 3500 CTD EB is pretty strong and even on the flats when hitting the brakes the EB kicks in and I get even more braking. Getting the Rv moving is not a problem with most all tow rigs, stopping or maintaining speed downhill for long stretches is where the EB shines.
If you've never had one then you'll never get it.
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