ITB's with turbo

[Denmark]

Hi all

I''m going to build a 4age 20v engine with turbo ,
I have many years ago build one were i used speedensity to run it it worked okay when running low load and fuld boost , but it used the ego control to remowe fuel when running high rpm and low load ,
As this was the only Way i could get it running okay

The q is now , is it possible to map it right now ,
Or is it better to use the ITB's on a NA Car and make a inletmanifold with a regular throttlebody and run it on SD like normal boosted ?

Thanks
Skassa

[MWfire]

Use alpha/n with map multy (map sensor is connected between IC and ITB-s).
For good ign table you need 1.2.32 firmware.
Ign+Lambda Kpa use: For Alpha-N with boost compensation on firmware >= 1.2.32 a new Y axis using calculated load is available which smooths out the transitions when using ITB's VE(Alpha-N) and Turbo, normal users use KPA (or TPS)
kPa, Kpa (or TPS depending on Hybrid MAP/TPS threshold) as Y axis on Ignition and Lambda table.
Load, Calculated load (airflow) as Y axis on Ignition and Lambda table.
See http://vems.hu/vt/help/v3/v3_alphan_settings.html

With that you can make perfect tables for fuel and ign. I use that type on bmw m3 e46 turbo engines.