I understand about the no further need for speculation but you should go to the dyno with certain expectations.
Here is the compressor map for your turbo. It is more aggressive than the GT2860R turbo that was originally discussed
[image]https://www.dropbox.com/s/mfi43f26qdb9pnt/TO4E-50%20Comp%20Map-2.jpg?raw=1[/image]
The red load line represents 15 lbs of boost from 3000 to 5500 rpm. 380 HP @ 5500
The orange line represents 10 lbs of boost from 3000 to 5500 rpm. 330 HP @ 5500
This is assuming a very high VE at 5500 rpm due to the long duration cam you presently have along with an air to air intercooler with at least a 50% effiency.
What is important and expected from looking at the load line is that full target boost can be aquired by 3000 engine rpm. (Or close to it)
If you have to wait past 3000 rpm to get full boost then the cam profile is a mismatch.
You are looking for the widest power band possible and should use as much of the dynamic range of the turbocharger as possible
Also note that running the engine rpm much past 6000 will drive the turbo close to the choke zone.
We all will be anxiously waiting for dyno results.
You are doing an Outstanding Job!
Here is the compressor map for your turbo. It is more aggressive than the GT2860R turbo that was originally discussed
[image]https://www.dropbox.com/s/mfi43f26qdb9pnt/TO4E-50%20Comp%20Map-2.jpg?raw=1[/image]
The red load line represents 15 lbs of boost from 3000 to 5500 rpm. 380 HP @ 5500
The orange line represents 10 lbs of boost from 3000 to 5500 rpm. 330 HP @ 5500
This is assuming a very high VE at 5500 rpm due to the long duration cam you presently have along with an air to air intercooler with at least a 50% effiency.
What is important and expected from looking at the load line is that full target boost can be aquired by 3000 engine rpm. (Or close to it)
If you have to wait past 3000 rpm to get full boost then the cam profile is a mismatch.
You are looking for the widest power band possible and should use as much of the dynamic range of the turbocharger as possible
Also note that running the engine rpm much past 6000 will drive the turbo close to the choke zone.
We all will be anxiously waiting for dyno results.
You are doing an Outstanding Job!