Duramax 2 step

[RickDLance]

Not the dance. Anyone make one yet??? I thought Ben or Fingers might be playing with one.

 

[JoshH]

I sort of made one using a DSP switch.

 

[gmduramax]

Can’t it be done in the brake torque management?

 

[N2BRK]

I thought there was one years ago that plugged into the OBD2 port

 

[N2BRK]

https://www.dieselperformance.com/s...ng-limiter-chevy-2008-2018-6-6l-duramax-16525

 

[IdahoRob]

https://www.dieselperformance.com/s...ng-limiter-chevy-2008-2018-6-6l-duramax-16525

I tried that one on my race truck and it didn't work well. The boost would keep rising along with the HP and basically blow past any setting on the thing. I didn't spend much time with it, so maybe it'd be possible. I may still have it somewhere if you want it Rick.

 

[Tothemax]

bd staging limiter works good for me. lets me hold 30# boost with the diesel pedal to the floor while the brake pedal is applied

 

[SSchmi5519]

If you use the OEM ECU it's too slow for competition. IMO.

 

[Ne-max]

Would be bad ass to find something that works. It's tough trying to watch tach and lights at the same time.

 

[SSchmi5519]

BD makes one yeah?

 

[rfletes79]

My lb7 has a 2 step.... I use the pto feature in the tune, hook the ecm wire to my trans brake wire and adj according to track conditions. Works extremely well.

 

[rfletes79]

Here’s a video of my car on the brake, bumping in and getting on the 2 step (pto). I only adjust the rpm setting up or down. Small increments go a long way. The rpm keeps boost in check and makes it very easy to stage/launch.

If you want more info I can email it over, logs, diagrams, videos.... whatever you need.

https://youtu.be/c2qILo1UJWQ


Sent from my iPhone using Tapatalk

 

[PureHybrid]

Is the DSP staging limiter not a viable option?

 

[IdahoRob]

What model engine/ecm will you be using Rick?

I used a DSP2 setup on Max'd Out (LBZ), the dsp2 could be hooked to a trans brake and should work fine with some trial and error.

 

[RickDLance]

LBZ ecm.

 

[JoshH]

What model engine/ecm will you be using Rick?

I used a DSP2 setup on Max'd Out (LBZ), the dsp2 could be hooked to a trans brake and should work fine with some trial and error.

That's basically what I did with mine except I used a relay wired to my trans brake switch and a DSP5 switch.

 

[RickDLance]

Cool. Thanks guys!

 

[Tothemax]

surprised no one else has used the bd staging limiter its been out for several years

 

[JoshH]

We have a customer with one, but it wouldn't work for him. The RPM just kept climbing regardless of how it was set.

 

[Tothemax]

mine took some work to get it to play nice. if i remember correctly i hooked it up to my crank sensor. i know it tricky tho i have to push the throttle slowly and get it to my target boost then hold it to full throttle or it will over shoot. you can just smash the pedal down it will over shoot them back it self down to the target but then your usually past the staging beams