So Mike, What's this new 9 speed?

[NC-smokinlmm]

Wow, that's gonna be a big gas engine. I'd like to know more about it?

 

[NC-smokinlmm]

That means the Allison will be a hybrid with throttle off battery recharge.

So probably no more Allison in 2500? Or no more L5p in 2500?

 

[chrisuns]

So probably no more Allison in 2500? Or no more L5p in 2500?

Looks like the 3500 gasser is getting the allison too? If I am understanding that correctly

 

[ZeroGravity58]

Looks like the 3500 gasser is getting the allison too? If I am understanding that correctly

The 3500 gasser and all the Duramaxs are getting the 9 speed Allison. The 2500 gasser is getting the 8 speed

 

[Bdsankey]

Wow, that's gonna be a big gas engine. I'd like to know more about it?

How do you figure? We had the 7.4L for decades, then went to the 8.1L gas/allison combo that was phenomenal in motorhomes.

Dodge had a gas 8.0L V10 from 94-03.

Ford had the 6.8L V10 up until a few years ago BUT I think they are bringing it back for the medium duty market. After it left the pickup truck scene they kept it around as it was apparently sought after in the medium duty market.




That said, with today's technology I don't see why it can't be done.

 

[Mike L.]

There is a lot of talk at Ford about a new 427 ci engine coming for trucks. Supposedly the plant is being tooled for it.

 

[JoshH]

Gasoline: the current models’ 6.0L V8 L96 will be replaced with a new 6.6L V-8 gasoline engine making around 400 horsepower and 450 pound-feet of torque, mated to:
A new GM 8-speed heavy duty automatic transmission for Sierra 2500HD models
A new 9-speed Allison heavy duty automatic transmission for Sierra 3500HD models
Diesel: the 6.6L Duramax Diesel L5P engine introduced for the 2017 Sierra HD will likely carry over with 445 horsepower and 910 pound-feet of torque mated to a new 9-speed Allison heavy duty automatic transmission


Read more: http://gmauthority.com/blog/gm/gmc/sierra/2020-gmc-sierra/2020-gmc-sierra-hd/#ixzz5YCzzqd3o

I wouldn't take any of that as gospel truth.

Following is speculative and unconfirmed information about the 2020 GMC Sierra HD. This page is a continuous work-in-progress and will be updated on a regular basis as we await official details from General Motors and GMC.

 

[Chevy1925]

I wouldn't take any of that as gospel truth.

its on the internet, josh. its f**king true ok!!! :roflmao:

 

[JoshH]

its on the internet, josh. its f**king true ok!!! :roflmao:

Well, I'm a french model. You can ask the Cokers.

 

[Chevy1925]

Well, I'm a french model. You can ask the Cokers.

must be the hair that gives them that idea :hug:

 

[LBZ]

How do you figure? We had the 7.4L for decades, then went to the 8.1L gas/allison combo that was phenomenal in motorhomes.



Dodge had a gas 8.0L V10 from 94-03.



Ford had the 6.8L V10 up until a few years ago BUT I think they are bringing it back for the medium duty market. After it left the pickup truck scene they kept it around as it was apparently sought after in the medium duty market.









That said, with today's technology I don't see why it can't be done.

Ford has always had the v-10 available in cab and chassis models. We’ve been running them at work for years.

 

[Bdsankey]

Ford has always had the v-10 available in cab and chassis models. We’ve been running them at work for years.

Hmm, thought they did away with it a few years ago. Anyway, larger displacement gas motors are not out of the realm of feasibility, especially with direct injection. The emissions levels are now achievable with these larger power plants.

 

[NC-smokinlmm]

How do you figure? We had the 7.4L for decades, then went to the 8.1L gas/allison combo that was phenomenal in motorhomes.

Dodge had a gas 8.0L V10 from 94-03.

Ford had the 6.8L V10 up until a few years ago BUT I think they are bringing it back for the medium duty market. After it left the pickup truck scene they kept it around as it was apparently sought after in the medium duty market.




That said, with today's technology I don't see why it can't be done.

That was only so they could acheive desired torque and horsepower way back when. I was hoping Detroit would get away from high horsepower low displacement engines they have been trending to is all I was thinking. I'm excited about it.

 

[juddski88]

I was hoping Detroit would get away from high horsepower low displacement engines they have been trending to is all I was thinking

Can you elaborate on your reasoning for this?

 

[Mike L.]

The manufacturers are going to start moving away from turbos on the smaller cars and start using twin screws.

 

[joshd472]

Excuse my ignorance but what is a twin screw.

 

[NC-smokinlmm]

Can you elaborate on your reasoning for this?

Ford eco boost. I hate those things for some reason, it's not a rational dislike, but still...:rofl:

If I'm not mistaken GM was playing with a few as well.

 

[NC-smokinlmm]

Excuse my ignorance but what is a twin screw.

Twin screw supercharger aka Eaton or roots type aka power displacement. Your choice

 

[joshd472]

I thought that is what he was referring to but I couldn’t understand stand why they would want to go to those.

Don’t hate on an ecoboost. Ha I own one and it’s the best truck I’ve ever had. Minus the fact you can’t you can’t make them sound good. Why ford doesn’t have forced induction on a 5.0 to slap in a raptor is beyond me.

 

[NC-smokinlmm]

I thought that is what he was referring to but I couldn’t understand stand why they would want to go to those.

Don’t hate on an ecoboost. Ha I own one and it’s the best truck I’ve ever had. Minus the fact you can’t you can’t make them sound good. Why ford doesn’t have forced induction on a 5.0 to slap in a raptor is beyond me.

I get really good economy with my tvs1900 on my 5.3 and they make a smaller displacement engine feel lager, especially in the torque department down low. My 5.3 acts more like a 402 than it does a 326. I like them, pro chargers are cool also don't get me wrong, just diffrent power band.

The way they sound is the major reason I dislike them, tuned/exhaust Eco boost are everywhere here.