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Old 02-02-2015, 07:04 PM   #11
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Not a simple answer as the ECM will control boost levels to make the desired TQ value it is programmed with.

Ive seen ~165kPa maybe 170kPa on my 13 RS 6MT, take ~101 as atmospheric so thats ~65-70kPa (9.5-10psi) of actual boost. I live in Seattle so I'm at sea level or a few hundred feet above.
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Old 02-02-2015, 09:29 PM   #12
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I bump 11-12 SOMETIMES (I'm in an LTZ)...but mostly 10 when I punch it.
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Old 02-02-2015, 10:32 PM   #13
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Search over on cruzetalk it's a few post stating up to 18 was seen but I'm having issues loading the site

Max I ever got stock was 16.5 on my cruze
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Old 08-20-2016, 11:34 PM   #14
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Im at Mile high in Thornton, CO. before I was tuned I would hit 16lbs. that's peak boost in third gear. the ecu doesn't give full boost till 3rd gear because of danger of damaging axles/ transmission, ect...
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Old 08-21-2016, 08:16 AM   #15
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Quote:
Originally Posted by Tyler13999 View Post
Im at Mile high in Thornton, CO. before I was tuned I would hit 16lbs. that's peak boost in third gear. the ecu doesn't give full boost till 3rd gear because of danger of damaging axles/ transmission, ect...
Hello fellow CoSonic! I'm in Littleton, work at Century in Broomfield. Stop in some time and say hey!
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Old 08-21-2016, 08:20 AM   #16
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Quote:
Originally Posted by carsNskis View Post
Hello fellow CoSonic! I'm in Littleton, work at Century in Broomfield. Stop in some time and say hey!
I have man! The orange lt on cruze Eco wheels and E85. Let's cruise peak to peak soon. I've got Tuesdays and Sundays off! Pm me

Sent from my SM-N910T using Tapatalk
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Old 11-05-2017, 11:36 PM   #17
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So I just did some logs with the Torque app and a bluetooth OBD2 adapter and only got 9.8psi peak, and 9psi hold. Does this seem right?

Specs:
2018 RS Hatch, 6-speed, with the GM Performance exhaust and tune
Outside temperature was just above 0 C / 32 F.
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Old 11-06-2017, 11:24 PM   #18
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See my previous post #11 in this thread.

I'm close to sea level and see anywhere from 9-14psi depending on spark timing and fuel I'm running. Seems close to me for a stock ECM calibration. You have the GM exhaust one, I don't know what that does as far as adjusting the desired TQ value (which adjusts desired boost).
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