Can anyone walk me through which tables I need to change to help my turbo brake work better?
Thanks
Can anyone walk me through which tables I need to change to help my turbo brake work better?
Thanks
Blown 2011 SS Camaro, 2008 LMM Diesel truck,
3 Harleys.
I am not sure if I can help you exactly with your request, but the tables in question are called turbo vane control. The values in the table are percent closed. 90% closed would have the tip of the vane close to the turbine wheel. 0% would have the tip of the vane far from the turbine wheel. When you want to maximize the affect of the exhaust on to the turbine wheel you use a high percentage. Such as when you want the turbo to spool faster and create a lot of boost. When you want to increase exhaust efficiency you use a lower percentage. I haven't used vane control to create a turbo brake, but I imagine you would raise the percentages in the higher RPM range and lower fuel quantity. You might try adding boost in the same range.
2005 Silverado 3500
LLY Duramax
Replaced injectors @ 128k miles
Removed EGR
PCV reroute
LBZ turbo mouth piece
3" intake bridge with 3" intercooler piping
LBZ injection pump
Custom GT4094VA
Custom 3.5" down pipe
Boost and EGT gauges
Thanks, Makes sense
Blown 2011 SS Camaro, 2008 LMM Diesel truck,
3 Harleys.
close the vanes at 5 and 10 mm3 from about 1600 rpm to max
97 k2500 ecsb 5.7l/4l80/4x4 0411 pcm,thorley tri-y's,true duals(no cats),msd ign.,zz4 cam, tuned with efi live
x2 on closing vanes, i closed mine to 98 percent in the higher rpm range down to around 1200 rpm and desired more boost in the areas i wanted more braking it should work good if its all done correctly if i recall when i scanned it after setting it all up on deceleration in tow haul and downshifting manually it hit around 11psi, hope this helps