Ebc Issues

[Kiwi_Phil]

Hi I suspect I have a faulty EBC but not sure, just ironing out the bugs with this car since I have purchaced it

here is the hardware involved

Gizzmo MS-2 EBC

GCG High Flow turbo

Stock ECU

Engine full rebuild around 10,000km ago (decked and o-ringed)

With the MS-2 off always boosts to 7psi without fail, I can up the duty cycle (0-100) upto about 50 without any changes, between 50 and 65 raises nicely upto 11psi , above that I get nothing and hard pulls in 3rd or 4th gear I occasionally get drops back to 7 psi, no matter how high I raise the duty above 65 the boost will not raise any higher than 11 psi.

I started messing with the gain and got a nice point around 50% where I like it but tried it at 70 to force some short overboosting and sure enough it will spike briefly to around 16psi ......

I am guessing the solenoid is faulty but is there something else I should be checking? I am aiming for around 14psi .....or is it the stock wastegate sticking? Not sure how far I can go on the stock one or what else could be causing it. I have no idea of the age of the MS-2 I have been told its approx 18 months installed by a professional by the last owner but the lines were cable tied onto the solenoid and were not even trimmed lol.

Edited January 19, 2013 by Neckface

[GTSBoy]

Regardless of whether there is actually a problem with your EBC, you do know that you shouldn't really be aiming for high boost levels with a stock ECU don't you? Especially with a highflow turbo. The ECU could well be cauing your inability to gain more boost be shutting down the engine's power through R&R.

Oh, and trhere's nothing wrong with cable ties for vacuum/boost hoses. They nip up nice and tight.

[Hadouken]

I would not be messing around with high boost levels and a stock ecu on a nice rebuilt engine

[Hadouken]

Oops

[DVS JEZ]

Best advice. Get rid of the gizzmo poo

[Kiwi_Phil]

found out what the issue was, it was configured for "open" mode, switched to "Closed" and it all works as it should, no idea of the difference between these 2 tbh, the manual is terrible and makes no sense.

might not be stock ECU after a bit more playing today as it will boost to 15psi without fuel cut, ah the joys of second hand car buying, no idea of the prievious mods ....

And Jez I eventually will, just working out my options of a custom tune, but thats a discussion for another thread