EBC issue - Miata Turbo Forum - Boost cars, acquire cats.

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Old 08-28-2009, 09:44 AM   #1
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Default EBC issue

I tried to tune a mates 5 last night with a MSPnP installed, he has the later variant of the EBC valve.

Unfortunately with all the cells set at 100% the turbo only span up to around 155kpa. With all the cells set at 0% it hit it's max wastegate pressure of 135kpa, so the valve is working.

Does anyone have any ideas of what might be wrong? I had a thought that the VTA DV might be leaking, but it doesn't seem consistent with the way it makes boost, it's a completely flat line once 155kpa is reached. if the DV was leaking I'd expect the turbo to sound like it's going to implode attempting to reach an unattainable target, but it doesn't...

We were aiming for a 10psi peak so have the boost cut set at 188kpa, it's not that which is causing the issue
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Old 08-28-2009, 10:13 AM   #2
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i would guess its the bov?
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