Boganspeed Will do skids for food Silver Donating Members 1,177 Member For: 13y 7m 2d Gender: Male Location: Perth SOR Posted 02/10/12 12:41 PM Share Posted 02/10/12 12:41 PM So I've wheeled the big banger up onto the work bench.The trouble with this one is it makes a bit too much boost and overpowers the fuel pump and boost sensing fuel pressure reg for the carbs.So I'm backing off the waste gate actuator (mitsubishi turbo with internal waste gate) to when it's just holding the wastegate closed and installing a Turbosmart boost tee.I'm trying to come up with a simple way to accurately test the cracking pressure of the diaphragm actuator thingy.I can turn my compressor pressure adjuster right down but I'm sure that's not accurate enough.Any idea's ?I do have a boost guage laying around.But what can I use to make the pressure and hold it ? Maybe a large syringe ?Chemists dont sell them, I tried.A little hand pump would be great, if I could buy one. Link to comment https://www.fordxr6turbo.com/forum/topic/82204-help-checking-the-wastegate-cracking-pressure-on-my-bike/ Share on other sites More sharing options...
Paulie2256 Donating Members 7,441 Member For: 16y 6m 15d Gender: Male Location: SE Melbourne Posted 02/10/12 09:19 PM Share Posted 02/10/12 09:19 PM Haha I was reading this and thinking great, this is going to be a galant or van or something. Link to comment https://www.fordxr6turbo.com/forum/topic/82204-help-checking-the-wastegate-cracking-pressure-on-my-bike/#findComment-1303690 Share on other sites More sharing options...
400KwXr6t Member 129 Member For: 17y 9m 21d Gender: Male Location: Perth Posted 02/10/12 11:01 PM Share Posted 02/10/12 11:01 PM Tyre pressure gauge maybe. With reg turned right down. An old inner tube inflated to a set psi could do it to with the gauge in line. Link to comment https://www.fordxr6turbo.com/forum/topic/82204-help-checking-the-wastegate-cracking-pressure-on-my-bike/#findComment-1303724 Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 17y 6d Gender: Male Location: Adelaide Posted 03/10/12 04:23 AM Share Posted 03/10/12 04:23 AM Bike + boost = winning in a very big way Link to comment https://www.fordxr6turbo.com/forum/topic/82204-help-checking-the-wastegate-cracking-pressure-on-my-bike/#findComment-1303909 Share on other sites More sharing options...
ms700 Moderating Team 10,170 Member For: 22y 4m 6d Gender: Male Location: Sydney Posted 03/10/12 07:39 AM Share Posted 03/10/12 07:39 AM Syringe wont help, as they dont hold pressure.Better off trying to pressurise it somehow using a regulator.....maybe a oxy bottle? Link to comment https://www.fordxr6turbo.com/forum/topic/82204-help-checking-the-wastegate-cracking-pressure-on-my-bike/#findComment-1304040 Share on other sites More sharing options...
bionicxr6t05 Bronze Donating Members 2,216 Member For: 13y 10m 10d Gender: Male Posted 03/10/12 07:41 AM Share Posted 03/10/12 07:41 AM go buy a mightyvac from repco, one with a gaugeSent from my T01A using Tapatalk 2 Link to comment https://www.fordxr6turbo.com/forum/topic/82204-help-checking-the-wastegate-cracking-pressure-on-my-bike/#findComment-1304046 Share on other sites More sharing options...
bionicxr6t05 Bronze Donating Members 2,216 Member For: 13y 10m 10d Gender: Male Posted 03/10/12 07:45 AM Share Posted 03/10/12 07:45 AM failing that buy some vacuum line and a t piece, t your boost gauge into the vac line and plug an air blower into the other end and gently increase the pressure til it opens while monitoring your gaugeSent from my T01A using Tapatalk 2 Link to comment https://www.fordxr6turbo.com/forum/topic/82204-help-checking-the-wastegate-cracking-pressure-on-my-bike/#findComment-1304052 Share on other sites More sharing options...
Boganspeed Will do skids for food Silver Donating Members 1,177 Member For: 13y 7m 2d Gender: Male Location: Perth SOR Posted 03/10/12 08:34 AM Author Share Posted 03/10/12 08:34 AM On 03/10/2012 at 7:45 AM, bionicxr6t05 said: failing that buy some vacuum line and a t piece, t your boost gauge into the vac line and plug an air blower etc etcThat's something I can do with what I've got now.Will see about the repco vac thing too as I like that idea. Link to comment https://www.fordxr6turbo.com/forum/topic/82204-help-checking-the-wastegate-cracking-pressure-on-my-bike/#findComment-1304092 Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,332 Member For: 19y 8m 14d Gender: Male Location: Perth Posted 03/10/12 09:44 AM Share Posted 03/10/12 09:44 AM Set the Al function on the eboost to your desired cracking pressure, then use one of these :Tee'd into the wastegate line and pressurised by an elcheapo Superchump air compressor.Adjust the wastegate actuator rod until the Alarm sqwarks ands the gate begins to open at the same time. 1 Link to comment https://www.fordxr6turbo.com/forum/topic/82204-help-checking-the-wastegate-cracking-pressure-on-my-bike/#findComment-1304135 Share on other sites More sharing options...
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