Backpressure Sensor

[sackracing]

I haven't been able to get over 30. Too much backpressure.

 

[sackracing]

 

[sackracing]

Made a harness to pull the 5 volts out of the map plug

 

[nat86]

What is everyone using for a backpressure sensor with an XFI?

Looks awesome sackracing !! What turbo are you running?

Sent from my SM-N910T using Tapatalk

 

[sackracing]

68/70 3 bolt

 

[forcefed3.8's]

I misread this earlier. I really don't know what the backpressure ranges will be on my car. I know how much c02 I need to make what Boost I run, and it's a lot. A whole lot.

45 pounds of c02 to make 28 pounds of intake boost.

This is going to be interesting. I was running 36lbs to the wastegate to run 29psi with the old 7675 turbo, and I have a 4lbs spring in the gate.

 

[nat86]

Ok maybe I'm misunderstanding I thought that the more back pressure you have the harder it is to control boost like as in lower boost levels not higher maybe I'm misunderstanding

Sent from my SM-N910T using Tapatalk

 

[sackracing]

More backpressure pushes harder on the gate, I have trouble keeping the gate closed enough to build boost. It's a balancing act.

 

[nat86]

More backpressure pushes harder on the gate, I have trouble keeping the gate closed enough to build boost. It's a balancing act.

Ok that makes sense

Sent from my SM-N910T using Tapatalk

 

[sackracing]

It's honestly a balancing act. There's a lot of factors that go into it.

 

[nat86]

It's honestly a balancing act. There's a lot of factors that go into it.

Please keep us posted on your results

Sent from my SM-N910T using Tapatalk

 

[sackracing]

I will. I hope to test this month. Waiting on plug wires and a hood right now.