Going to make my own WI kit
02-18-10, 12:06 PM
#151
Thought I would post some pics of the kit I made for Rdahm. He's also going to be making a video on his install and such. He has a youtube channel and a site called www.raceandreplace.com with some pretty cool how to vids, so that should come out pretty cool.
The changes made to this kit are: Push lock fittings used all around, different type of hose, solenoid is mounted directly to the nozzle to eliminate any drips when the water shuts off, nozzle was drilled out a bit more to have higher flow capacities, and a meter valve was added to fine tune water flow. I took several closeups of the solenoid and how it's mounted. Came out nice.
The changes made to this kit are: Push lock fittings used all around, different type of hose, solenoid is mounted directly to the nozzle to eliminate any drips when the water shuts off, nozzle was drilled out a bit more to have higher flow capacities, and a meter valve was added to fine tune water flow. I took several closeups of the solenoid and how it's mounted. Came out nice.
02-22-10, 02:33 AM
#155
I am very excited for this kit! My engine bay is waiting for my water injection setup. I have the twin power so I can run AI.
Brent has been very professional and quick to communicate this whole time. I will gladly give him further business as I continue to improve my car. The kit comes in end of this week.
Rob
Brent has been very professional and quick to communicate this whole time. I will gladly give him further business as I continue to improve my car. The kit comes in end of this week.
Rob
02-22-10, 07:42 PM
#158
Sandro Did you ever find a good sensor for pre-intercooler testing? It would need to be fast and withstand the higher temps. Some logging would have to be done to compare it to the Fast reacting IAT sensor. (rdahm is running the Fast IAT)
Or maybe run a second identical sensor post intercooler. That way the measurements are taken with the same style sensor. The results should be more accurate and consistent.
Or maybe run a second identical sensor post intercooler. That way the measurements are taken with the same style sensor. The results should be more accurate and consistent.
02-23-10, 05:20 AM
#159
I just got this Omega K T/C, the unit with the exposed tip TC-K-1/8NPT-E-72
http://www.omega.com/ppt/pptsc.asp?ref=TC-NPT
http://www.omega.com/Temperature/pdf/TC-NPT.pdf
But have not tested it yet. As always, I fell well behind my schedule...
As for the signal conditioning and 0-5V analog output, I got an AEM unit from this guy http://cgi.ebay.com/ebaymotors/New-A...Q5fAccessories
price is good
http://docs.google.com/viewer?a=v&q=...K86bSAv9h3i8eA
The thing is the voltage range is minuscule in the expected temp range - see page 4 - I am doubtful about the relative accuracy. But, anyhow, it may be good enough for comparison.
I also just bought these inexpensive things http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWNX%3AIT
Also, I will install an other T/C at the intake. That - together with your fast AIT sensor - should hopefully put some lights on what will be going on...
- Sandro
http://www.omega.com/ppt/pptsc.asp?ref=TC-NPT
http://www.omega.com/Temperature/pdf/TC-NPT.pdf
But have not tested it yet. As always, I fell well behind my schedule...
As for the signal conditioning and 0-5V analog output, I got an AEM unit from this guy http://cgi.ebay.com/ebaymotors/New-A...Q5fAccessories
price is good
http://docs.google.com/viewer?a=v&q=...K86bSAv9h3i8eA
The thing is the voltage range is minuscule in the expected temp range - see page 4 - I am doubtful about the relative accuracy. But, anyhow, it may be good enough for comparison.
I also just bought these inexpensive things http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWNX%3AIT
Also, I will install an other T/C at the intake. That - together with your fast AIT sensor - should hopefully put some lights on what will be going on...
- Sandro
02-23-10, 01:29 PM
#161
I never actually checked that. It's probably a 5v signal that the ecu intercepts. The sensor check screen should tell us for sure. In any case you can log the temperature with the datalogit without adding any additional connections. If you're thinking of running 2 fast iat's or moving one back and forth this would't work because the fast iat sensor range won't go high enough for logging preturbo temps. You need a sensor with a range between about 50* f and 300* f. The fast iat sensor maxes out long before that, it would probably damage the sensor if it was exposed to that kind of heat. So post intercooler is the only way to run that sensor.
02-23-10, 01:35 PM
#163
crossing our posts...
The IAT sensor is just a 2-wire with a thermistor at the junction. The thermistor electrical resistance varies with temperature. If you measure it, you can find the relationship - which is highly non-linear by the way.
The thermistor is powered from the PFC. I believe the PFC must "read" the resistance as the current value will vary, interpret it and feed it into the calculations. My guess...
You can't log it directly. By itself, the IAT sensor does not generate any voltage signal.
- Sandro
The IAT sensor is just a 2-wire with a thermistor at the junction. The thermistor electrical resistance varies with temperature. If you measure it, you can find the relationship - which is highly non-linear by the way.
The thermistor is powered from the PFC. I believe the PFC must "read" the resistance as the current value will vary, interpret it and feed it into the calculations. My guess...
You can't log it directly. By itself, the IAT sensor does not generate any voltage signal.
- Sandro
02-23-10, 01:49 PM
#164
I wondered about that. I wasn't sure if the ecu sent 5 volts through the sensor and the resitance changes adjusted the voltage or if the ecu read the resistance and assigned temp values on this. Thnking more about it the latter makes more sense. Otherwise it would be configured more like a map sensor with 3 wires.
02-23-10, 01:57 PM
#165
That's right. That is how e.g. the 3-wire MAP sensor works. The PFC supplies the 5V power (that is the "V" wire), the "O" wire carries the 0-5V analog signal, which goes to the PFC as a voltage signal. The wire in the middle is the ground.
If you supply your own 5V power to a sensor like that, then you can log 0-5V directly.
- Sandro
If you supply your own 5V power to a sensor like that, then you can log 0-5V directly.
- Sandro
02-24-10, 04:56 PM
#167
Nothing will stop rotaries from blowing apex seals, but water will sure help hold them together, my car is proof of that. As well as the others on here, and other forums that have pushed way more boost into these engines on pump fuel then what was ever considered "safe"
You will always have bad tuners, and components that fail without warning leading to a blown engine, but doing things smart and adding reliability mods such as AI will minimize the risk.
You will always have bad tuners, and components that fail without warning leading to a blown engine, but doing things smart and adding reliability mods such as AI will minimize the risk.
02-25-10, 09:20 PM
#171
I love it! I did a little intro video.
http://www.youtube.com/watch?v=myl1Jc0ttew
Ill do another when i install it. and another when i use it. Im waiting on oil feed and return lines for my turbo. seems like the hardest thing for me to get from vendors. :-(
http://www.youtube.com/watch?v=myl1Jc0ttew
Ill do another when i install it. and another when i use it. Im waiting on oil feed and return lines for my turbo. seems like the hardest thing for me to get from vendors. :-(
02-25-10, 09:37 PM
#172
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I love it! I did a little intro video.
http://www.youtube.com/watch?v=myl1Jc0ttew
Ill do another when i install it. and another when i use it. Im waiting on oil feed and return lines for my turbo. seems like the hardest thing for me to get from vendors. :-(
http://www.youtube.com/watch?v=myl1Jc0ttew
Ill do another when i install it. and another when i use it. Im waiting on oil feed and return lines for my turbo. seems like the hardest thing for me to get from vendors. :-(
No sleeping until you get it installed & go for a rap.
Can't wait to see your testing results for air temps with/without WI.
02-25-10, 10:03 PM
#173
One ting i just cannot get over is how big everythin is and you have to put it right in front of the turbo. there needs to be littler nozzels i think. maybe before winters over someone will come up with more supplies. I love mechanical inj. hopefully mine turns out alright...Dudemaaanownsanrx7, what do you think the outcome would be if i tryed to use a 2 gallon tank or something, keep in mind mines in the trunk
02-25-10, 10:40 PM
#175
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True EGT analysis would be awesome to see aswell. I beleive Rice Racing has quoted exhaust temp drops of around 100 deg celcius - I don't know what the exact fuel/water ratios and load and rpm conditions were however. I would imagine though that the benifits of reducing combustion/exhaust temps would be expenential for increasing the fatigue life/reliability if the engine & turbo. ie, even a small decrease in combustion & exhaust gas temps would have a measureable, possibly significant, benifit in engine component life/reliability.