Nice! No fuel adjustments?
Builds AUS BJ73 + turbo + arduino (1 Viewer)
- Thread starter 350HJ75
- Start date
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- Thread starter
- #62
Thanks mate, no fuelling adjustments yet still have the factory lock wires on there, I want to do a few data runs without touching the fuel and going to the 18psi spring.(in reality I think it will provide 15psi max)
On a side note before I drove to the exhaust shop today I added another 1mm preload on the 12 psi waste gate spring and it was boosting about 9-10 psi so I think 4mm preload is about right for the mamba unit on my setup. They provided a chart for the waste gate arm movement and the 12psi spring is 1mm @ 10psi and 5mm @ 12 psi, so I am thinking that the flap opening 1mm is enough to limit my boost.
On a side note before I drove to the exhaust shop today I added another 1mm preload on the 12 psi waste gate spring and it was boosting about 9-10 psi so I think 4mm preload is about right for the mamba unit on my setup. They provided a chart for the waste gate arm movement and the 12psi spring is 1mm @ 10psi and 5mm @ 12 psi, so I am thinking that the flap opening 1mm is enough to limit my boost.
- Thread starter
- #63
car came back from exhaust shop yesterday and i am happy with the results, 2.5 inch system with a small hotdog muffler. he also made a flange not too far from the turbo so the dump pipe is short and easy to remove if needed.
very happy with how it has come out and not too noisy at all
very happy with how it has come out and not too noisy at all
Last edited:
- Thread starter
- #64
and today i spent some time fixing the oil leak from the turbo drain
here is the culprit broken gasket
had to remove the turbo to properly clean off the old broken gasket, all done here
high temp RTV used for a gasket maker
and as i am typing this i am waiting for the hour curing time then final torque up. heres hoping that little bug is fixed.
here is the culprit broken gasket
had to remove the turbo to properly clean off the old broken gasket, all done here
high temp RTV used for a gasket maker
and as i am typing this i am waiting for the hour curing time then final torque up. heres hoping that little bug is fixed.
- Thread starter
- #65
the only other issue i am dealing with so far is a noisy turbo, well i think it is noisy!
put a thread with videos in the diesel tech section.
is my turbo just noisy?
put a thread with videos in the diesel tech section.
is my turbo just noisy?
- Thread starter
- #66
went for a drive today to pick up a cheap TD04 which was about an hour away. took the cruiser for a good run on the highway to test it out basically tried to hold 110 km/h with the AC on and see how it performed. I am happy with the power as it holds nicely and inclines don't slow me down anymore!
here is a quick data log of about 20 mins driving @ 110
in summary
EGT held around 550 deg C
oil pressure around 35 PSI
Ambient temp was about 31 deg C
Boost sat around 6 PSI average
Intake air temp held around 110 deg C
Water temp rose from 91 deg to 98 deg
the water temp was my only issue, later on the way home i was flirting with 103 dec C water temps and had to back down to 100km/h to keep it around 97 deg steady.
not sure how to deal with the water temp issue yet, i think i will try more boost first and do a similar run.
here is a quick data log of about 20 mins driving @ 110
in summary
EGT held around 550 deg C
oil pressure around 35 PSI
Ambient temp was about 31 deg C
Boost sat around 6 PSI average
Intake air temp held around 110 deg C
Water temp rose from 91 deg to 98 deg
the water temp was my only issue, later on the way home i was flirting with 103 dec C water temps and had to back down to 100km/h to keep it around 97 deg steady.
not sure how to deal with the water temp issue yet, i think i will try more boost first and do a similar run.
I’ll be interested to see if you notice any difference in fuel economy.
- Thread starter
- #69
driving my usual run to work i have gone from 10L/100km (28MPG) to 12L/100km (23MPG) so far @ 10psi boost and no fueling adjustments.
- Thread starter
- #70
This week i put the 14 psi waste gate spring in and turned the fuel screw out 1/2 a turn. Makes a difference! quite happy with the performance and sitting just under 650C egt (1200F) under load up a hill. I was still having coolant temp issues (creeping up) however so to address that i started with the basics.
I was happy with the coolant itself as it had recently been done recently as well as the thermostat. my only suspicion was the fan clutch as a mechanic who did the AC regas recently told me he was able to stop it by hand when the car was up to temp.
but seeing as i did a fair bit of muddy off roading in winter i thought i would clean out the radiator itself...
well there is my problem
and the AC condenser was the same
this is the aftermath of the cleanout, all this mud from the radiator and AC condenser only!
all cleaned up
Pleased to say that i have not cracked more than 86 deg yet doing 110 km/h @ 10-15 psi boost and 500 deg EGT with the AC on
I was happy with the coolant itself as it had recently been done recently as well as the thermostat. my only suspicion was the fan clutch as a mechanic who did the AC regas recently told me he was able to stop it by hand when the car was up to temp.
but seeing as i did a fair bit of muddy off roading in winter i thought i would clean out the radiator itself...
well there is my problem
and the AC condenser was the same
this is the aftermath of the cleanout, all this mud from the radiator and AC condenser only!
all cleaned up
Pleased to say that i have not cracked more than 86 deg yet doing 110 km/h @ 10-15 psi boost and 500 deg EGT with the AC on
- Thread starter
- #71
and below is a chart of the big hill on the way to work... with 14psi waste gate and fuel screw 0.5 turns out.
note the water temp increase (this is before the above rad clean out) and boost readings fluctuating, this is an issue with the sensor as i think it needs a 'snubber' to smooth out the readings.
the only slightly disappointing thing is that speed dipped to 75km/h, N/A it was 70km/h. but average speed going up the hill was much better as i was 90km/h + much more of the time.
note the water temp increase (this is before the above rad clean out) and boost readings fluctuating, this is an issue with the sensor as i think it needs a 'snubber' to smooth out the readings.
the only slightly disappointing thing is that speed dipped to 75km/h, N/A it was 70km/h. but average speed going up the hill was much better as i was 90km/h + much more of the time.
350hj75, thats a hole heap of Australia, that you cleared out of your radiator!
The weight reduction alone, would have to improve the vehicle performance.
I find it fascinating, being able to log into and record what, where and how your truck has been doing/performing.
Well done 350hj75, for a great job with this conversion, most impressive.
D'oh!
Homer
The weight reduction alone, would have to improve the vehicle performance.
I find it fascinating, being able to log into and record what, where and how your truck has been doing/performing.
Well done 350hj75, for a great job with this conversion, most impressive.
D'oh!
Homer
Hmm shouldn’t it improve? Or just driving it a bit harder now
- Thread starter
- #74
Thanks homer, I'm just your average home tinkerer mate so i think anyone can have a go at something like this !
PATHnz, yeah it is probably influenced by the fact i am expecting more out of the 3B now so probably pushing it a bit harder too, as i do more km i will see how the average values go.
PATHnz, yeah it is probably influenced by the fact i am expecting more out of the 3B now so probably pushing it a bit harder too, as i do more km i will see how the average values go.
Driven it much lately? How’s it running?
- Thread starter
- #76
yeah mate, still my daily to get to work, it has about 3000 km on the turbo system now, put the big tires on and went bush the other weekend too.
just rested it on the bank, passenger got scared and bailed out the window
bit of a hole!
another hill climb out of a creek
impressed with the turbo off road too you can hear in the videos it comes on boost soon enough to be useful.
just rested it on the bank, passenger got scared and bailed out the window
bit of a hole!
another hill climb out of a creek
impressed with the turbo off road too you can hear in the videos it comes on boost soon enough to be useful.
- Joined
- Jun 29, 2013
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How is the Andruino system working ?
- Thread starter
- #79
It has been working well so far, the only issues I am dealing with at the moment are that the boost sensor has too much fluctuation and is in need of a 'snubber' before the gauge, and maybe the screen is slightly too small as it takes a bit of focus to watch say the EGT figure on a hill climb.
other than that I really do like having real values to monitor rather than how the stock gauges are set up.
- Thread starter
- #80
well time for some regular maintenance to happen. the clutch throw out bearing has been making more and more noise so it is time to replace it. picked up the replacement today and it seems it might be a NOS koyo unit as the packet looks pretty old?? not sure but better than ebay cheapie version i guess. going to do the job on saturday so will update then.
