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Old 12-25-2012, 09:15 PM   #1
fr0st
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Default boost lower in colder weather ?

We have 10 degree F weather here and for some reason the boost onmy WRX is lower ??? (on my previous turbo car it would go higher in cold weather)

I'm running the same stage 1 91 Low wastegate as before, did a reflash, put on a normal wastegate map, atill the same..

all of them gave me a lower boost setpoint of around 10 psi instead of the rock solid 13.1 psi i would see on it during summer..


what gives ?
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Old 12-26-2012, 02:08 PM   #2
Airboy
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In the newer cars, boost target drops by quite a bit once temperature drops to 32F and below.
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Old 12-26-2012, 04:22 PM   #3
Tripintaz
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IAT Boost Target and IAT WGDC comp tables pull out boost when the intake air temp starts getting below 65F. They get really aggressive at such cold temps as 10F. I would imagine Cobb did not have much ability to tune their OTS maps optimally for such cold temps.

Your choices are to have a protuner tune it, or get ATR and adjust it yourself if you dare.
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Old 12-26-2012, 04:55 PM   #4
fr0st
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checked it out in accesstuner and it's is that.

and no i won't play with fire...Id need a winter map and a summer map... and in winter having full boost won't change much when there 6 feet of snow everywhere.

better to have lower boost in winter than ring lands popping.

Last edited by fr0st; 12-26-2012 at 05:31 PM.
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Old 12-27-2012, 02:05 AM   #5
Allen Horton
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OP, I was having the same question. Thanks for posting, and finding the answer. I wound up talking to Dom at Maxwell power and he echoed about the same as you just said. What a relief.
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Old 12-27-2012, 05:28 PM   #6
fr0st
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Quote:
Originally Posted by Allen Horton View Post
OP, I was having the same question. Thanks for posting, and finding the answer. I wound up talking to Dom at Maxwell power and he echoed about the same as you just said. What a relief.
Well i give credit to Bill @ Cobb. I posted on their forum and he answered to me about this.

i went in access tuner and saw that i could disable it but i would need to check afterwards that i don't max out my injectors and run lean..

better off having less boost at -10 or -20 .. don't drive that fast anyways and besides, the 4 wheels spin anyways with 10 psi of boost o snow.. What would i do with the extra HP?


Last edited by fr0st; 12-28-2012 at 05:38 AM.
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Old 12-29-2012, 08:38 AM   #7
Allen Horton
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Make more noise lol, and be sideways
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Old 12-29-2012, 12:22 PM   #8
Tripintaz
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Quote:
Originally Posted by fr0st View Post
Well i give credit to Bill @ Cobb. I posted on their forum and he answered to me about this.

i went in access tuner and saw that i could disable it but i would need to check afterwards that i don't max out my injectors and run lean..

better off having less boost at -10 or -20 .. don't drive that fast anyways and besides, the 4 wheels spin anyways with 10 psi of boost o snow.. What would i do with the extra HP?


Good point but I'm OCD enough to where I would have to fix the tune. I mean what would you want if you had zombies chasing you in ice cold temps during the winter? I would want that extra 3 PSI!
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Old 01-06-2013, 07:56 AM   #9
fr0st
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Quote:
Originally Posted by Tripintaz View Post
Good point but I'm OCD enough to where I would have to fix the tune. I mean what would you want if you had zombies chasing you in ice cold temps during the winter? I would want that extra 3 PSI!
Because their blood freezes, zombies run slower in very cold weather so you don't need more boost
You just need a wagon to carry more stuff like that RPG that's in a wooden crate
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Old 01-06-2013, 08:01 AM   #10
Tripintaz
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Quote:
Originally Posted by fr0st View Post

Because their blood freezes, zombies run slower in very cold weather so you don't need more boost
You just need a wagon to carry more stuff like that RPG that's in a wooden crate
Touche lol
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