Why no powerglide trans in diesel comp trucks?

[swinky]

There is no reason a 5r couldn't successfully run 2nd gear start. After that they run a very similar gear ratio to a 48re. It would require a little different gearing setup. They weekend warrior 3.55 or 3.73 truck on 35's would not be able to gain anything from second gear start. On a truck that really wants to go fast it would definitely be a good starting point to make a 5r quicker.


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It can't be done through tuning is the main issue.

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[Morgan@Midwest Diesel & Auto]

It can't be done through tuning is the main issue.

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Sure it can. It's no different than on a 6.7. I do those all the time.


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[swinky]

Sure it can. It's no different than on a 6.7. I do those all the time.


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That's not what matt told me.

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[swinky]

Sure it can. It's no different than on a 6.7. I do those all the time.


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[Morgan@Midwest Diesel & Auto]

That is their opinion. But it's very much capable of it. When I get my crew cab back running next month I would be glad to prove it.


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[Dzchey21]

yeah I had my race truck set up like that but I never made it to the track to try it. At first I couldn't do it with H&S because the tables wouldn't allow for a negative value. I thought it actually drove really well on the street as well. Loaded the turbos better ect just crusing around.

 

[78f100]

How did you guys select 2nd, or did it always start in 2nd on the tune?

 

[swinky]

That is their opinion. But it's very much capable of it. When I get my crew cab back running next month I would be glad to prove it.


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If you guys can help guide me to a 2nd gear start tune I'd appreciate it. Keep in mind this is for a 6leaker.

yeah I had my race truck set up like that but I never made it to the track to try it. At first I couldn't do it with H&S because the tables wouldn't allow for a negative value. I thought it actually drove really well on the street as well. Loaded the turbos better ect just crusing around.

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[Morgan@Midwest Diesel & Auto]

All it take is to change the 1-2 up shift value to 0mph. Then change the 2-1 downshift value to 0 as well. You put it in gear and roll forward it will go to 2nd and then never go lower.

At least that's what it does for me.


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[Dzchey21]

If you set the upshift/down shift to a negative value it wont ever go into first.

 

[swinky]

When the injectors come back I'm just going to put the lever in 2 and see how it launches. If I like it I'll look further into it. Might be time for some elite or ********** tunes.

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[sootie]

When the injectors come back I'm just going to put the lever in 2 and see how it launches. If I like it I'll look further into it. Might be time for some elite or ********** tunes.

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i dont know if the TC will lock if you do it that way...

 

[swinky]

i dont know if the TC will lock if you do it that way...

I have a lockup switch. I just want to see how it moves out the first 20 or 30ft anyway. I feel like this should work but at the same time wouldn't jesse warren and Jaran holder be doing it already?

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[sootie]

I have a lockup switch. I just want to see how it moves out the first 20 or 30ft anyway. I feel like this should work but at the same time wouldn't jesse warren and Jaran holder be doing it already?

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ah 10-4. It will likely come down to calculating gearing and tire size to achieve what you want.

 

[swinky]

ah 10-4. It will likely come down to calculating gearing and tire size to achieve what you want.

Some 30 inch slicks would be perfect I think.

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[swinky]

A 5r in 2nd with 30 inch tires and a 3.73 identical to a 48re with 33.108" and a 3.73 in first.



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[sootie]

what is jesse and jaran's setup

 

[swinky]

what is jesse and jaran's setup

5r 3.73s and like a 32 inch slick.

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[ckrueg]

i dont know if the TC will lock if you do it that way...

Why wouldn't the converter lock? I have stuck mine into 2nd and punched it from a roll and it locked right up at the right mpg

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