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Measuring back pressure with 38 lbs of boost.

Old 02-08-2016, 08:50 PM
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Default Measuring back pressure with 38 lbs of boost.

We're heading to GA next weekend for lights out 7. We're going to run ODR. Finally installed back pressure sensors to find out what we have going on. How efficient we are also if we're out of turbo.

Can't wait to find out how are new RPM Transmission works out , really excited to have them on board. We also switched to a air shifter . Looking to go a little quicker.
Old 02-09-2016, 05:59 PM
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Make sure to test the sensor against your map sensor, so at least you know the two are calibrated together.
Or if there is a discrepancy you cant adjust for, at least you know how much it is

Running similar boost on a friends 4cyl car a few years ago with an old 6262 it was seeing around 58psi pre-turbine.

It still performed great though. Change to a 6266CEA did transform it though, spooled the same, but made a load more power and it dropped closer to 1:1
Old 02-09-2016, 09:27 PM
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Awesome, I will see you there!
Old 02-09-2016, 09:43 PM
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Originally Posted by stevieturbo
Make sure to test the sensor against your map sensor, so at least you know the two are calibrated together.
Or if there is a discrepancy you cant adjust for, at least you know how much it is

Running similar boost on a friends 4cyl car a few years ago with an old 6262 it was seeing around 58psi pre-turbine.

It still performed great though. Change to a 6266CEA did transform it though, spooled the same, but made a load more power and it dropped closer to 1:1
Will do. I really want to find out, nobody has any info with my set up and T4 flanges.
Old 02-10-2016, 07:11 AM
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Very cool let us know! We only had 40psi BP at 52psi in the manifold with twin 111mm turbines.
Old 02-10-2016, 08:27 PM
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Originally Posted by hellbents10
Very cool let us know! We only had 40psi BP at 52psi in the manifold with twin 111mm turbines.
That's awesome! I think I'm going to have more trying to make the boost I am with the small flanges.


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