LMM: LMM Tow tune

[CDR]

I been trying all week to make a turbo brake tune with only some luck... could anyone provide me with a example of one they made that worked? Thanks so much

Dave

 

[CDR]

anyone

 

[nar]

Posting from my phone so can't show you the tune. Go search on dieselplace, there are a couple example tunes for it.

 

[quinton]

set turbo vane at 99 across the top two lines

 

[catman3126]

and set the boost table to 30psi or so in the corresponding cells to the vane cells. LMM's will acheive the desired boost that is in the stock boost table in the higher rpm cells of the boost table by doing the exhaust brake function when you are decelerating so you have to raise the boost to an unachievablelevel to make the turbo keep try to make the boost by closing the vanes.

 

[catman3126]

 

[quinton]

and set the boost table to 30psi or so in the corresponding cells to the vane cells. LMM's will acheive the desired boost that is in the stock boost table in the higher rpm cells of the boost table by doing the exhaust brake function when you are decelerating so you have to raise the boost to an unachievablelevel to make the turbo keep try to make the boost by closing the vanes.

Is this just on the lmm's or is it Lbz's also?

 

[catman3126]

lmms make the boost the easiest because they have the tightest housing and differnt vanes

 

[CDR]

So you only do it on turbo vane position "C"?

 

[quinton]

So you only do it on turbo vane position "C"?

On a lmm you should have three tables high, med, and low altitude. Change all three.

 

[CDR]

ok that makes more sense thanks!

 

[catman3126]

yeah i was just using that table to show an example

 

[CDR]

I CAN NOT GET IT TO WORK!!! :violent: I played with it for the last two days. It worked once when the motor was cold the vane position got to 75% and one it was warmed up it wouldn't go above 55% could you guys take a peek at this and tell me what i'm doing wrong?

 

[catman3126]

somebody will probly get it before I do but when i get home if its not fixed then I will.

 

[CDR]

somebody will probly get it before I do but when i get home if its not fixed then I will.

Thanks! I owe you! this is driving me NUTS!!

 

[x MadMAX DIESEL]

table b2225 set the minimum to 95 with 0 mm3 from 1600rpm to 3600rpm. try that

 

[CDR]

table b2225 set the minimum to 95 with 0 mm3 from 1600rpm to 3600rpm. try that

great can't wait to try this tommorrow! whats the significance of 95? Did everything else look ok?

 

[jwrkansas]

You need to adjust all of your desired boost tables. Yours all look stock, the vane pos tables look ok

 

[x MadMAX DIESEL]

That's the minimum vane position table. Not much of a difference between 95 and 100, but gives it alittle wiggle room. Pretty much the vane max and min is what you need to tune by, the desired boost really doesn't work very well.

Sent from my PC36100 using Tapatalk 2

 

[jwrkansas]

And fwiw ive never had to adjust b2225 in any of my tow brakes and they all work great. But who knows, maybe its just another method of doing it that i dont know about. The first screen shot catman posted should get ya there.