Info: Allison VS GM transmission tuning

[MAXX IT OUT]

I heard that Gm did there own tuning for the transmission, but Allison has there own that works better then the Gm tuning. I figured someone should know something about this on here. This is coming from a guy that did a Allison conversion on a cummins. Any thoughts?

 

[Mike L.]

Allison only has medium duty tuning . That's all they ever had. If you like driving in T/H all day long and have the Alli downshift every time you let go of the pedal, go for it.

 

[CaptPhil]

I read that post also and was curious about it.

Mike L., does it shift any better/faster/more consistently than the GM tuning?

 

[02greysixer]

All the medium duty trucks I've driven with the Allison 1000 the down shifting is way more aggressive than I could put up with in my dd

 

[Mike L.]

I read that post also and was curious about it.

Mike L., does it shift any better/faster/more consistently than the GM tuning?

It sucks as far as I'm concerned. Go drive a Kodiak and see how you like it. You may love it. It will down shift every time you let off the pedal. It feels like T/H on steroids.

 

[lts1ow]

Friends flatbed has a A1000 and its def something.. would not wanna DD that thing

 

[MAXX IT OUT]

What about the hole learning side of the adaptive shifting? I figured we can modify it to make it shift better , but I was more wondering if the foundation of the tunes were different or the same.

 

[PACougar]

Honestly if you have a alli built right, they shift awesome.

 

[MAXX IT OUT]

Honestly if you have a alli built right, they shift awesome.

Read my signature and you tell me, it works but not great.

 

[PACougar]

Read my signature and you tell me, it works but not great.

Oh I did Time to ditch that purple scrap metal and have one built right. You need to ride in a new Suncoast or Mike L equipped truck, I think you'll be very impressed.

 

[Evan@InglewoodTrans]

Honestly if you have good tuning and a alli built right, they shift awesome.

Fixed it for you.

 

[PACougar]

Fixed it for you.

Haha, I use the same tuning as you so I guess I can say you're definitely right!

 

[Mike L.]

I'm only in this to get my post count higher.:roflmao:

 

[othrgrl]

Daily drove a Kodiak quite a bit and if I was keeping that truck I would have made some major tuning adjustments. It drags out every shift way too far and like Mike said it will downshift if you come off the throttle at all.

 

[Noreaster]

Allison only has medium duty tuning . That's all they ever had. If you like driving in T/H all day long and have the Alli downshift every time you let go of the pedal, go for it.

wasnt that what the Kennedy TCM was?

 

[Mike L.]

wasnt that what the Kennedy TCM was?

Yes. I think John had it modified. McRat had one on Casper.

 

[MAXX IT OUT]

Fixed it for you.

I know tuning will not fix mine, I really want to get mine more consistent. WOT it shifts great or seems to, part throttle shifts are not the greatest all the time. Is putting in a one of Mikes new springs and ditching the copilot a good idea?

 

[Mike L.]

I know tuning will not fix mine, I really want to get mine more consistent. WOT it shifts great or seems to, part throttle shifts are not the greatest all the time. Is putting in a one of Mikes new springs and ditching the copilot a good idea?

If you do that, you must drill the 2 holes in the plate.

 

[mike diesel]

Someone also said the allison tuning does not go to neutral in between shifts..he says gm programmed allison to do it. He said you can shift an allison as fast as you want without tieing up gears. Is this true? I find it hard to believe.

 

[56taskforce]

Someone also said the allison tuning does not go to neutral in between shifts..he says gm programmed allison to do it. He said you can shift an allison as fast as you want without tieing up gears. Is this true? I find it hard to believe.

Not the way the Allison shifts you can't.