Boost numbers

[pandonsf]

I'm getting similar numbers on my stock Gen 3, will hit 19 - 20 sometimes, but mostly 17ish redline. Wonder if I have something wrong too if most people hitting 20 constantly. I'm on 91CA, so maybe that's it

I’m seeing roughly the same 16-17 and random spikes to 19-20 on 91CA

 

[nate_13]

I think i found the issue i usually fuel up with 93 but the little town outside my ranch only has 89 and i think ot was bad fuel i fueled up with 93 and i was hitting 19-20psi, just went to the ranch again this weekend and fueled up with 89 and bam! Same thing boost topped out at 14-16psi, so it must be an octane related issue. Thanks to all!! P.s. the AFE intake is solely for noise! i had an 04 twin turbo mach one and i sure miss the jet sound when the twins would spool up! that was the reason for the intake mod.

 

[nate_13]

Ive noticed on 91 i top out at 18-19 psi but 93 it will spool up to 20

 

[SouthernPerformance]

Just put our new 2022 on the dyno today.
422 miles on the odometer
87 octane still in the tank
19psi at peak torque and it fell to 16.5psi by 5800rpm
359whp
430wtq
5th gear pull

 

[Bluu]

Just put our new 2022 on the dyno today.
422 miles on the odometer
87 octane still in the tank
19psi at peak torque and it fell to 16.5psi by 5800rpm
359whp
430wtq
5th gear pull

6500 miles on the odometer
91 octane
19psi peak and 15-16psi at redline
399whp
493tq
5th gear

Same boost as you, only difference would be a few points of octance and whatever the UEC is doing with timing, but i highly doubt its making THAT much of a difference.

 

[WireNutz]

Was one on a mustang dyno vs maybe a dynojet ? That might explain the number difference too.

 

[Bluu]

Was one on a mustang dyno vs maybe a dynojet ? That might explain the number difference too.

Could be, mine was on a dynojet. 4,900ft elevation and 44* ambient temp outside

 

[SouthernPerformance]

6500 miles on the odometer
91 octane
19psi peak and 15-16psi at redline
399whp
493tq
5th gear

Same boost as you, only difference would be a few points of octance and whatever the UEC is doing with timing, but i highly doubt its making THAT much of a difference.

will find out shortly. 38 miles to empty and this 87 octane is gone. Truck saw negative timing up until peak torque. 2 degrees of timing at 4000rpm and 4 degrees at 5800rpm. We'll see what kind of timing it will allow with proper 93 octane in the tank. Should find out next week

 

[nate_13]

After installing the cobb intake bracket it solved the boost issue!! I am 100% my intake was collapsing, now im seeing fullboost and staying pegged at 19-20psi

 

[nate_13]

After installing the cobb intake bracket it solved the boost issue!! I am 100% my intake was collapsing, now im seeing fullboost and staying pegged at 19-20psi