Duramax Diesels Forum Truck of the Week
  #211  
Old 02-09-2019, 11:56 AM
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I agree, 2nd gear start for light or no load
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  #212  
Old 02-09-2019, 12:43 PM
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Maybe 1st gear start in T/H only. Assuming it has the ability like the current trans if a completely different shift strategy for T/H VS just drive
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  #213  
Old 02-09-2019, 02:54 PM
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Haven't watched it yet but here it is

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2006 BRM Jetta TDI. Injectors, turbo, Malone custom tuning on ecm and tcm
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  #214  
Old 02-09-2019, 04:04 PM
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I thought the chain was just for the PTO?
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  #215  
Old 02-09-2019, 04:07 PM
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Quote:
Originally Posted by chrisuns View Post
I thought the chain was just for the PTO?
Same here
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285/75/17 Nitto Dura Grapplers, 4.56 gears, Front and rear ARB lockers, Efi Live tuning by me, Raptor 160 LP, Cognito 4-6 NTB Lift, 4" Exhaust, Built Trans by Mike L.

2006 BRM Jetta TDI. Injectors, turbo, Malone custom tuning on ecm and tcm
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  #216  
Old 02-09-2019, 04:11 PM
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In the video interview that I watched with one of the transmission engineers for gm he said that it was a chain driven PTO. Take that for what itís worth
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fleece modded regulator
diamond eye down pipe
bd manifold
airdog 150
custom 5in pipe to 6in powdercoated stack
fleece sc stage 4 . thanks again brayden

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  #217  
Old 02-09-2019, 08:27 PM
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Just got back from the Chicago auto show. Gotta say that Chevy looks much better in person then in the photos without and with the bow tie grille. They had a high country and an ltz up on stage. They even had a work truck version with a v-plow hooked up. That one even looked good paint match front grille and Chevrolet across the front. I like it. The gmc looked really good too. I talked to a guy that works for Allison about the trans he says nothing on the inside looks like an Allison design. They had a cut open one on display at the gmc booth. It literally is just tested by Allison to get the branding. I hope gm did their homework a trans can make or break a really good truck in my opinion.
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  #218  
Old 02-09-2019, 09:35 PM
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The chain is for the PTO. I really don’t like hearing the words “busy tranny”. For some reason the constant shifting of these 8-speeds in the half tons drive me bonkers, I don’t want that in an HD truck pulling trailers.
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  #219  
Old 02-09-2019, 10:42 PM
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Here's a video I found on another site. The pto is chain driven. From what I could find on the lighter duty version 10 speed, I believe they said it uses a variable displacement pump in the trans to control pressure. It also has the option of installing an electric pump to hold it in gear for the engine start stop technology. There's alot going on inside the trans, and it looks nothing like the allison in the 4500/5500 trucks.

https://youtu.be/RdAn1byqQOg
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  #220  
Old 02-10-2019, 06:33 AM
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They arent adding that annoying start/stop to the Dmax trucks, are they? That would absolutely suck.
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  #221  
Old 02-10-2019, 08:41 AM
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Can’t imagine that they would? I’d think it would interrupt regeneration so it would constantly be starting and stopping that function. I could be smoking crack, however.
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  #222  
Old 02-10-2019, 12:25 PM
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Quote:
Originally Posted by dmax_ty View Post
Can’t imagine that they would? I’d think it would interrupt regeneration so it would constantly be starting and stopping that function. I could be smoking crack, however.
Hopefully they will go to an electric dpf in the future, I know they were under development.
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  #223  
Old 02-10-2019, 01:06 PM
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Quote:
Originally Posted by NC-smokinlmm View Post
Hopefully they will go to an electric dpf in the future, I know they were under development.
I think all plans or hopes of an electric DPF are all but gone.
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  #224  
Old 02-10-2019, 05:07 PM
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Damm...
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  #225  
Old 02-10-2019, 05:51 PM
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Quote:
Originally Posted by Hoser View Post
I think all plans or hopes of an electric DPF are all but gone.
I dont see how one would work anyways. How much heating from the electric elements would be required to replace what is normally done by fuel? 3k watts? 10k watts? I think it ended up way to high. Even at 3k watts you would need a dedicated 250 amp alternator at 14.4 volts.

I think the better solution would be to insulate the exhaust and DPF, maybe double walled tubing, and see if passive regeneration could occur more often. Or put it closer up behind the cat to capture some of the heat

Either that or put a chunk of plutonium in the dpf and it would regenerate even when the engine is off. Would suck for those who parked in an enclosed garage
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