I can see myself asking to test the gate using your vac if possible.

I am likely to put the 17psi spring in the gate too as I agree with what you have said in that the ebcs allows you to run above gate pressure and not below it.

Hows this coming along Brett?

yeah. sure can mate. its easier to do it off the car.so if you want to bring it round and we can pump it up.

*ps sorry i only just saw this post after your thread was bumped.

Pm me and we can sort out a time / numbers etc.

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Doing it for all the wagons out there

It is getting there. The previous round of maps felt quite good and boost was starting to respond. The latest map feels good still but on WOT is a bit rich. Will hopefully sort it out over the next day or two.

Fuel economy is pretty average. I haven't measured it as yet but I doesn't sound like I am going to be winning any green comps.

Here's something to aim for, my current tune is averaging 12.6L/100km on E85 - built motor, 272 cams

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[CENTER][SIGPIC][/SIGPIC][/CENTER]
[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]

Isn't that a 2.0? Once I am finished tuning I will do some proper calculations with a regular mix of driving styles. I will be pleased to have 12 l/100 on 98. On e85 that is very good going.

You obviously need a bigger turbo!! ;-)

Finally found some time to start testing some more potential causes of my lack of boost and response to electronic boost control.

I checked for boost leaks and it all seems fine. I then decided to isolate the ebcs from the equation by connection the compressor boost nipple directly to the wastegate actuator. The actuator has a 24psi Spring fitted but boost was still only hitting 17psi.

I then had the wastegate actuator pressure tested and low and behold...it was starting to crack open at 16psi.

We wound up the actuator arm to 21psi and did another test drive. Still only boosting the 18psi for some reason.

Next thing we did was to fit a manual bleed valve to see how the boost reacted. First drive gave me 18psi. I stopped and added a few more clicks and had 21psi. At least it was reacting properly. AFRs were still overly rich.

So, knowing that I didn't have any boost leaks and that the turbo did function correctly, I reconnected the ebcs. Sport now gives 18psi and sharp is giving 20psi.

I sent off some logs last night to have the AFRs cleaned up.

My only other issue is possibly a fuel hesitation stumble at around 2800-3100 rpm. I am going to add a fuel dampener to the supply line so that I have one on each supply and return and see if that solves my issue. I would prefer to get rid of the problem with a mechanical fix rather than just tune it out.

At last I feel like the end is in sight.

Told you that was probably the case. Glad to hear your making progress.

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Doing it for all the wagons out there

Thanks mate.

I also fitted a second fuel dampener tonight. It has made it slightly smoother again and got rid of the roughness at 2800-3000 that sounded like a dsg gearbox.

Overall it is starting to feel nice but when on a gentle throttle I can feel the driveline torque up in stages. Not sure what this is. For normal driving it is not really detectable.

Insufficient actuator preload as I said ages ago......

Glad it's finally getting sorted.

Still far from a fan of Email tuning, but whatever floats ya goat

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[CENTER][SIGPIC][/SIGPIC][/CENTER]
[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]