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one of my winter upgrades is to log backpressure. I'll be using the 0-100psi 4.5v ebay sensor and logging in HP Tuners.
here's my hotside
from what I have gathered, people are tapping into the hotside all over the place..at the exhaust port, right before the turbine, middle of the long side in a single...
is there a place that will give me the best overall picture of what the turbine is seeing both with the w/g open and closed?
Something to consider when running the China sensors on a BP gauge is heat. They might not be as resilient. With that said I ran china pressure sensors with co2 and fuel and they worked well.
The only problem I ever had with them was the connection between the plug. On the dome pressure sensor the female end wasn't making good contact. I chased a massive boost fluctuation problem for months Becuase of it.
Keep in mind that most of the "brand name" stuff is China made. The real difference is quality control. This means that some people may get cheap-*** China knock-offs that are absolutely just as good as the best name brand, while others may receive a steaming pile of ****. The difference in price often comes down to the fact that the name brands sort out the good ones and toss the shitpiles.
Keep in mind that most of the "brand name" stuff is China made. The real difference is quality control. This means that some people may get cheap-*** China knock-offs that are absolutely just as good as the best name brand, while others may receive a steaming pile of ****. The difference in price often comes down to the fact that the name brands sort out the good ones and toss the shitpiles.
We all know that name brands sub contract to china. That doesn't change the fact that generally you have a higher likely hood of success sticking with a domestic supplier or name brand. As you stated they have better QC.
With that said I still bought China sensors and had relatively good luck with them.
the way i see it, this is just my hobby.
these parts are for a car, not a boat or airplane
so if i have a failure its probably not gonna kill me or maim me so bad i can't work.
i havent had a honeywell sensor in my hand but from the pics i see on the internet it looks identical to the SSI unit. Is czech made. Good, strong, like Russian t34.
A guy could use a resistor and a capacitor to slow down the time constant on the lead that feeds the VCM scanner.
I log fuel pressure using the PCM oil pressure input. Its quite lumpy. Rather surprised me.
But at the shop we've done a few cars that use the Innovate setups that log fuel pressure, and they are all over the map as well. one would think fuel pressure would be more smooth.
Nice setup Doug. I haven't seen many photos of it.
10-21-2016, 10:04 AM
best location for backpressure sensor 
