2006 6.6L and 6spd Allison Upgrades?

[hammer69]

Edge doesn't appear to make a product for this powertrain yet.

Does anyone else make one?

[Tank]

www.pacificp.com Try them, Pacific Performance is about the best out there for the d-max, they know how to make some insane power.

[dozerboy]

PPE is one of the one of the top tuners out for the LBZ just remember there #s are at the flywheel not the wheels and they generally have very high EGTs. A few post down I just posted the Predator is out which has always been a solid tuner. And is rated at 120hp IIRC the PPE is 200hp so they are about equal at the rear wheels. Bully Dog, The Duramaxmizer, and I think there is one more but I can't think of it. If you have the LBZ you better only run a tuner on the lowest setting the stock power is all ready straining the tranny and don't be at WOT in the 5th and 6th up shifts. The Edge is supposed to be out in the fall whether that is this year or next we don't know.

[STLCHEVYHD]

Yeah, I read were the Allison 6spd is already at it's limit with the LBZ. That sucks.

[dozerboy]

There are a few guy pushing, I haven't heard of anyone limping one yet. I'm thinking of a 40hp tune mostly to remove the speed limiter, but don't really want to do the tranny yet.

[89stroker]

you would think that GM, or Allison would realize that a large portion of the people buying these new diesels will turn them up, so why can't they just make the stuff stronger from the factory?

[dozerboy]

Most people keep them fairly stock, but it isn't like GM doesn't put TQ management on everything it makes anyways.

[airdeano]

the biggest complaint on the DM 6.6 is fuel economy.. got plenty
of power.. just want a better MPG... getting the torque
improvement does increase the economy, but overfueling for
the hp is the clincher... usually a 60hp 150tq is fine for
economy and not straining the trans. its the 10000lb that
kills and no monitoring.

airdeano

[dozerboy]

Well they tested the big 3 and the Dmax got the best mileage, and a 60 hp tune could put a LBZ into limp mode.

[02hoe]

You will find all you answers here http://www.dieselplace.com

Suncoast does.

[LostBoy]

Originally Posted by 02hoe

You will find all you answers here http://www.dieselplace.com

Suncoast does.

Suncoast does what?

[Back Woods]

17mpg is bad?

[dozerboy]

No but its not very good for an unloaded 2500.

[LostBoy]

Keep in mind poor mileage is typically more of a reflection on the driver than the truck...

[duratothemax]

Originally Posted by 89stroker

you would think that GM, or Allison would realize that a large portion of the people buying these new diesels will turn them up, so why can't they just make the stuff stronger from the factory?

no offence, but do you think that GM even cares or takes that into consideration?? It is not their responsibility to take into account that the owner might make aftermarket changes. They designed the drivetrain to be strong enough for use in original factory configuration. How can you blame GM or any car company for "not making things strong enough when the owner mods the vehicle"?. I ran 52 psi of boost on a stock LLY turbo for a month and guess what, it blew up. It would be ludicrous for me to go off on a rant blaming GM that it blew up. They designed it to run reliably at 24 psi. I exceeded that, so I paid the price. No one is to blame but myself. :)

It is not the hard parts in the Allison that are failing. The clutches simply slip. The hard parts are stronger than pretty much anything else out there in the light-medium duty market. The LCT1000 is physically identical to the Allison 2000/2400, except the gear ratios in the 2000/2400 are different. The 2000/2400 is in pretty much every medium duty truck, school bus (old school busses used 545's), transit busses, etc... The input shaft is about the size of my arm.

just my oppinion..

ben

[LostBoy]

Originally Posted by duratothemax

no offence, but do you think that GM even cares or takes that into consideration?? It is not their responsibility to take into account that the owner might make aftermarket changes. They designed the drivetrain to be strong enough for use in original factory configuration. How can you blame GM or any car company for "not making things strong enough when the owner mods the vehicle"?.

Plus, the factory wouldn't be able to justify the cost of strengthening any further unless they produced higher-output vehicles off the showroom floor that demanded it.

Why would anybody want something built to the limit from the factory? It'd be great, but anybody could buy the exact same truck & yours would be just another one in the pack. The fact that they're made the way they are leaving plenty of room for the aftermarket to improve means you end up w/ a truck you can customize to be uniquely yours.

That, and there are those kooks out there that prefer mediocrity... Any auto manufacturer's goal is to find a happy median

[AzzKicker]

Originally Posted by airdeano

the biggest complaint on the DM 6.6 is fuel economy.. got plenty
of power.. just want a better MPG... getting the torque
improvement does increase the economy, but overfueling for
the hp is the clincher... usually a 60hp 150tq is fine for
economy and not straining the trans. its the 10000lb that
kills and no monitoring.

airdeano

What are you smoking dude? 70mph at 17-18 mpg Is Bad MPG? If so then damn I'm getting bad MPG.

[hammer69]

Ok, forgive my ignorance but what is an LBZ?

[hammer69]

Ah, figured it out with a little research. Three letter engine model designator.
I assume that the LBZ is the newest 6.6L Duramax?

[dozerboy]

Yes, until 1-1-07 then it will be LMM and you don't want one of those.