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Old 09-18-2010, 02:26 PM   #1
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Default Test wastegate actuator base pressure, help

I thought my WG issues were over, but it appears that they are still there. I ordered a 11psi WG can.

My open loop settings for testing are...
(diy ebc)
19.5Hz
10ms
inverted
closed duty% 0
open duty % 100

boost control duty table has every cell set to zero. I am under the impression that this should let me rely entirely on the WG can to control boost.

EBC is plumbed correctly and I am taking boost reading from after the IC and before TB.

I hit my boost overshoot limit at 17psi. IS it common to overshoot this much? I was datalogging at the time and the graph doesn't show the WG opened even slightly.

Last edited by miatauser884; 09-18-2010 at 03:41 PM.
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Old 09-18-2010, 04:23 PM   #2
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I set all of my duty cells to 100%, and this worked. Boosted to 1psi more than rated.

12psi feels slow compared to 16psi. Now I am ready to tune next weekend.
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Old 09-18-2010, 08:56 PM   #3
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be careful you dont overload it.... most ebc solinoids like mac solinoids operate at maximum duty cycle of 90% and you just modulate the PW.

but if its working i guess dont mess with it...just set overboost protection.
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