Julian's dyno  

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(@bmgjet)
Dyno Wizard Moderator

If you can wait until monday, Took tomorrow off work and dont want to go in just to take a picture lol.
But its dead simple. Looks like something that was made in the 60s and wouldnt be supprised if it was since it came with a old 5 gass analyser.

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Posted : 25/04/2019 8:45 am
(@julian-edgar)
Member

That would be great - no hurry. Sounds like I could make it easily enough, but a pic is like 1000 words, etc. 

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Posted : 25/04/2019 8:50 am
(@julian-edgar)
Member

Bought a couple of these to act as water traps for the MAP sensors. 

Also bought a pair of 150mm analog gauges - they measure minus 100 kPa to plus 150 kPa. They're for MAP and exhaust back-pressure. I am logging and displaying that via the MAP sensors and YourDyno, but I decided I wanted the immediate visual reassurance of good old Bourdon tube pressures gauges.

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Posted : 06/05/2019 8:48 am
(@bmgjet)
Dyno Wizard Moderator

Ops sorry I forgot I was going to take a picture for you.

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Posted : 06/05/2019 9:14 am
(@mach_1)
Member

Best Wishes to you and family Julian hope things are working out for your wife.

NOW THATS A NICE PRESSURE GAUGE !!! Has positive and negative pressure reading values.

Has a nice narrow range 150KPa (21.75 psi ) for measuring exhaust backpressure. Not good for manifold vacuum specially on deceleration will be off the scale totally.

This post was modified 3 weeks ago by Mach_1
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Posted : 06/05/2019 10:10 am
(@julian-edgar)
Member
Posted by: Mach_1

Best Wishes to you and family Julian hope things are working out for your wife.

NOW THATS A NICE PRESSURE GAUGE !!! Has positive and negative pressure reading values.

Has a nice narrow range 150KPa (21.75 psi ) for measuring exhaust backpressure. Not good for manifold vacuum specially on deceleration will be off the scale totally.

Thank you - she is getting better, but slowly.

My engine management maps only down to -100 kPa (ie -14.7 psi) and on my dash when driving the car I don't see more than 20kPa absolute (ie minus 80 kPa)  so so I would have thought the gauge range is more than adequate?

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Posted : 06/05/2019 10:18 am
(@mach_1)
Member

That is great, good news that your wife is making a recovery.

On my 600BHp V8 engine I see over negative  30 inHG on deceleration ( intake  manifold Vacuum)  

Like you siad that plenty I made a  error before   30 inHG = 13.75 PSI which is plenty

 

This post was modified 3 weeks ago by Mach_1
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Posted : 06/05/2019 10:46 am
(@jca-dyno)
Member

Hi julian , im also located in aust just wonder where u sourced the retarder control electrics

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Posted : 08/05/2019 10:41 pm
(@julian-edgar)
Member

I built my own retarder power supply (parts are are readily available). I use YourDyno for control. 

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Posted : 08/05/2019 10:54 pm
(@jca-dyno)
Member

Ok thanks did u source local 

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Posted : 09/05/2019 12:05 am
(@jca-dyno)
Member

Ok thanks did u source local 

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Posted : 09/05/2019 1:51 am
(@julian-edgar)
Member

Yes

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Posted : 09/05/2019 2:12 am
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