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Wastegate duty cycle thoughts

Started by autox4fun, October 07, 2019, 10:57:45 PM

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autox4fun

Tuning folks, this one is for you..
10-12 ecu flex/sho
As I request throttle, wastegate duty cycle pins full on.  99.99%
This is light throttle or more.
From a stop or a roll.
Acts as if it's trying to clear the exhaust/or any current boost.
This is for a few ms to a full second, then gets back to pwm for the rest of the drive.
This is a tune, but acts the same throughout different tunes
So, is this a normal act?
If you have more questions please ask..
Screen shots of the logs can be posted if needed.

Randy
 
Ported - Heads, EX manifolds, and turbine housings, GH - turbos, TQ, & IC, EPP intake and hotpipes w/Tial (11lbs), x35 spacer, MSD coils, PPE catted DP, Magnaflow exhaust, DW in tank, Livernois Hpfp, Fuel-IT e-sensor, AEM WMI, SHO trans cooler, Megan Coilovers, Retrofitted Headlights, TSW wheels

StealBlueSho

Would need to see logs... are you tuning this car? The WGDC will ramp up quick in order to quickly spool the turbos to hit desired load...

76fomoco

2013 PP AJP E30 160 TS, sp542 plugs, 3 bar, PPE catted DP's, GH IC, GH turbos, XDI-35, EPP hot and intake
Best 3-29-21  11.85 with 3000 DA
DA trap best 117.96
E30 = 492 whp, 536 wtq
E30+meth 498 whp, 539 wtq

autox4fun

Well, I had my thoughts 180'D
As I was reading it, I thought 100% was fully opening the waste gate. 
100% is a full boost request, less duty cycle is to throttle the flappers open
Ported - Heads, EX manifolds, and turbine housings, GH - turbos, TQ, & IC, EPP intake and hotpipes w/Tial (11lbs), x35 spacer, MSD coils, PPE catted DP, Magnaflow exhaust, DW in tank, Livernois Hpfp, Fuel-IT e-sensor, AEM WMI, SHO trans cooler, Megan Coilovers, Retrofitted Headlights, TSW wheels