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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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Jim where were they installed, right @ the head or down closer to the turbo?

is there a web site or page with pictures of your setup on it?

thanks
Bob
 

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Bobalos said:
I know it would be ugly, but couldent you run a tube off of the header & put the transducer 2 or 3 feet off of the header?

Bob
The tap was in the y-pipe at the turbo inlet. I ran about 3 feet of stainless tubing, put a few bends in it, and put the sensor in a spot where it wouldn't see a lot of heat. All per RacePak instructions. Couldn't get one to live and I've heard of others having the same problem.
 

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Discussion Starter #8
Does anyone know if anybody has had success with one? I know one guy that says he has. He said he was using a 12" pc of 1/4" steel tubing with a loop bent into it but it was mounted in the crossover tube.
 

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I dont see any reason why it would not work in the cross over. its one complete system & the pressure should be pretty even all the way across it.

one of the guys on the Turbo Rustang site, did a bunch of testing on his setup with different mufflers & such to see how it affected boost & backpresure on the turbo. maybe do a search there & see if that comes up with anything.

Bob
 

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I was thinking that if I ever put another sensor in I would make is as far away from the engine and the turbo as possible. Half way between both. Somewhere in the crossover tube. Then run a bunch of tubing with loops and bends. Then make sure the sensor gets aome air flow to cool it off. It is good data to have but melting sensors every 5 passes is killing my wallet.
 

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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.
 

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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.
 

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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.
 

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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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