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View Full Version : Cant boost over 1.5 bar...


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tpunx99GSX
04-28-2008, 11:01 AM
I agree with Scheides...

If you are not 100% use to the settings on the AVC-R, unhook it and get a MBC.

The duty cycles on the AVC-R arent the easiest to get down and most likely are your problem. If you really want to use the EBC, set your duty to 100% and your boost to where you want it. Do a pull but be ready to let off because you will overshoot your "set boost". This would be only to test if the duty is too low.

What is the "duty" at right now?

You could also try raising the percentage 5-10%, doing a pull, raising, doing a pull... Until you get to the boost you want to be at. Continue raising it until you over shoot the set boost by 2-4psi and dial it back a few percent on the duty.

Currently the duty is at 40% and the boost is at 1.9 kg/cm (or whatever) I have turned it to 2.3 kg/cm and it still only boosts until 1.5
The wierd thing is i have not heard the wastegate open at all. Tonight im going to replace that gasket and make a pull to see if that corrects it. Other then that ill work on the other things.

tpunx99GSX
04-28-2008, 11:05 AM
Could you go a little in detail about your wg setup? External/Internal and where/how it's mounted.

I had an external wg setup on my mani and had the top part of the exhaust housing welded shut. I blew that weld and my fiddy spooled slow as nuts. 20 psi by 7000 rpms lol

SCM6152E, External Tial 38mm wastegate mounted on the O2 housing. Mounted with gasket no visable/audible leaks, dumping to atmos.

EclipseGST
04-28-2008, 11:06 AM
40% is your problem... Go turn it up to 70%. Seriously.

Do it slowly, just keep an eye on your boost gauge so you dont blow anything up. But you should be around 65-75%.

EclipseGST
04-28-2008, 11:09 AM
SCM6152E, External Tial 38mm wastegate mounted on the O2 housing. Mounted with gasket no visable/audible leaks, dumping to atmos.

You are running both lines on the w/g right? 1 coming from the intake manifold going to the w/g and the boost solenoid, the other just coming from the boost solenoid.

EclipseGST
04-28-2008, 11:21 AM
This is how you should have the solenoid hooked up with your w/g.

If its not like that, you could also be having issues.

tpunx99GSX
04-28-2008, 04:09 PM
Yes i have it hooked up like the diagram. Ill try the higher settings.

Project2G
04-28-2008, 05:52 PM
I cannot boost over 1.5 bar, my target boost is around 30 psi (~2.xx bar).
Stock head studs. Ouch:bullrider: