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Backpressure sensor

3782 Views 18 Replies 4 Participants Last post by  Six_Shooter
Anyone here running a backpressure sensor? If so, how do you have it hooked up to keep from burning up the sensor from the extreme heat?
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Ok, for you guys that have had this sensor, what did you use the data for after logging it?

Did you make changes to lower the pressure? Did your car perform better?
Jim Monson said:
I just watched to see if the backpressure was too high. I've been told that if the backpressure gets much more that twice the boost pressure your turbo is less efficient. So if you have 20lb of boost and 40lb of backpressure you're ok. If you have 20lb of boost and 60lb of backpressure something is wrong. Changing the a/r ratio can raise/lower the backpressure.

On my car I have a 1:00 a/r ratio. I want to watch the backpressure to see if a 1:3 or 1:5 a/r would help.
I've heard the same about double the boost pressure.

But I guess what I was getting at, was is it needed to watch the exhaust back pressure every run? I would think that if you had it set up with one or two passes, then only when something drastic was changed in the set-up to use the sensor again, prolonging the life of the sensor.
Jim Monson said:
I want all the data, all the time. I'm greedy. I need all the help I can get. I also wanted to monitor how well the exhaust was sealed. If the backpressure dropped off it's time too look for leakers.
Good point, I hadn't thought about breakage. :lol:
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