Can't get over 32psi of boost???

[Dragbear]

Last year I ran a Mini Max and in the hottest setting the turbo maxed out at 32psi. This was the reading on the Mini Max
This year I change to EFI Live and it also maxes out at 32psi.
I just installed a Fleece 63mm cheata turbo at it also maxes out at 32psi.
I am looking for 42psi and after 3 tuning updates it still sits at 32psi.Danville gave up and says that is all that turbo will make. Brayden from fleece just sent me a tune to see if he can get it up to 42.

I can't help but think the issue is somewhere else!! I Get all of my turbo boost readings from the data port under the dash with the H&S last year and the CTS Insight now. I think it gets its reading from the Map sensor.

If the ecm is not getting the right information it could over boost and damage the engine. I may hook up a manual gage to check it.

Rick Abare

[Quinton]

Boost leak?

[kbracing96]

Possibly its only a 4 bar MAP sensor and 32 is as high as it will read???

[Dragbear]

Yes that was exactly right!!!.
I installed a 0-100 pressure sensor for my insight and found the turbo boost was 50psi. That explains the 1800deg exhaust temps. Need to back it back down.
I guess I should have told Mike I was getting the boost reading from the data port.
Has anyone installed a 5 bar map sensor? You would think the computer would need the correct information for tuning.
Rick

[Dragbear]

Well I guess that was not the issue. The manual gage reads exactly the same as the boost reading from the data port under the dash. total boost is 35pis.

[Wheelz]

Do you have an exhaust leak? Saw a cummins with the same problem and he finally found his exhaust manifold bolts were backing out