fix it till it's
Join Date: Jul 2008
One thing regarding spool or responsiveness.
Keep in mind you are on a dpf mapping. This slows down response quite a lot compared to the euro3 stuff on the 156.
On euro3 it's like: i need power, pres the pedal, fuel is injected, boost comes on, fly away
Dpf ecu: i need power, pres the pedal, a little fuel is injected, boost get's a tad higher, airmass measured....lean mix ensured, a little more fuel is injected, boost raises a little more, again airmass/mix checked.....
In other words the ecu map will try to maintain lean mix (like 18:1) even under acceleration ...... so the key question is : how can you speedup the gasflow in the turbine and away from it.
Heat wrap the stuff maybe?
Get bigger diameter exhaust after the turbo.
Closing egr will help spool too... (guess you already did that?)
Oh and have you had your intake cleaned?
Just my 2 cents.