I have been running the latest Beta 411 a and I just changed to the 411b moderate tq management... I was hitting and holding 45 psi @ around 1250 deg. at wot. That was on sw2 with my doc. performance box...
Now with the latest 411b same settings I can only hit 35 psi and I have to let off as my egt guage is aproaching 1500-1550.,...
I know these are supposed to be the same but what the *ell??
Can I go back to the 411 a or is it too late....
What is the difference between the two other than the tq. management, there has to be something.... My egt gauge used to crawl to 1250 now it goes from 800- 1500 in 2 secconds.....
Somebody help me I am pulling my hair.....
I think i have the version numbers right, correct em if there wrong, The beta that I am refering to is the latest one with less heat and smoke.....
Brian

 

I believe you can go back on the '06-'07 trucks since no reflash exists for them.

 

anbody know the difference between the two?

 

Post the exact file versions...i think when you downloaded the new version with diff tq mgmt, that you didnt get the aftermarket turbo version and this limits boost to low 30s....

 

The last 4.x that was going around was stock injectors with stock turbo. Tat on sw2 with my pressure box I was hitting 45 psi.....

 

all the beta's I received use aftermarket turbo

 

Aftermarket Turbo is the norm for beta's....from beta 4.4 to the latest versions....