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Performance Modifications for the NG900 / Old 9-3 This forum contains PERFORMANCE related Q&A's for the NG900 and 9-3. This may also include suspension.

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Old 07-24-2008, 09:44 PM   #1
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Intake and SMBC

Well i just put the Cold Air Intake and SMBC on my car and wow!!!! You can tell a difference for sure. Though i thought i would just let people with the SMBC's know. If you look at the plastic piece where the SMBC plugged into on the sensor you will see that it has a very small hole!! VERY SMALL!!!! If you make it bigger it will Raise the boost on the Turbo, My Turbo was pushing 15 PSI well after the slight mod i just said i got it to push right at 26 PSI. Now i dont recommend running the Stock turbo that high.... Just Thought i would share what i knew. I will post some pics here soon.
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Old 07-24-2008, 09:47 PM   #2
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how the Air/Fuel ratio?
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Old 07-24-2008, 09:57 PM   #3
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26 PSI and you didn't hit fuel cut?
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Old 07-24-2008, 09:57 PM   #4
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Pictures as Promised.
Attached Images
File Type: jpg air intake1.jpg (64.2 KB, 34 views)
File Type: jpg intake12.jpg (53.5 KB, 21 views)
File Type: jpg SMBC11.jpg (46.1 KB, 34 views)
File Type: jpg smbc22.jpg (41.5 KB, 31 views)
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Old 07-24-2008, 09:58 PM   #5
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Wow, what?
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Old 07-24-2008, 09:59 PM   #6
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It didnt shut off i just know i was over doing the turbo from the sound it made lol.
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Old 07-24-2008, 10:01 PM   #7
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You are pushing more air @ 26 psi than your software and maybe injectors can handle.


You boost like that on stock software you *will* go lean, and melt a piston.

Then it's "big money engine out of the car time"
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Old 07-24-2008, 10:01 PM   #8
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Made one of the ewww grinding type sound so i backed the SMBC down and it runs great!! no turbo lag at all!! 1'st gear pushes about 8-10 PSI then from 2'nd to 5'th pushed about 15-16 PSI.
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Old 07-24-2008, 10:02 PM   #9
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Yea i didnt leave it at the 26 PSI. I turned it back down to its normal Boost. The SMBc just got rid of the slow spool time of the turbo.
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Old 07-24-2008, 10:21 PM   #10
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how the hell did u get 26 psi on t7? i thought t7 was smart!
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Old 07-24-2008, 10:31 PM   #11
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i think when i made that hole bigger on the Sensor it changed that. But then again an Atmospheric BOV on a T-7 is supposed to make the Engine trip out and mine doesn't.
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Old 07-24-2008, 10:38 PM   #12
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Your T7 has a deathwish.

So you enlarged the hole on the BPC sensor, not on the SMBC, right?
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Old 07-24-2008, 10:38 PM   #13
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Then again maybe my T-7 Is dumb??
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Old 07-24-2008, 10:39 PM   #14
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Correct on the BPC Sensor. Not the SMBC.
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Old 07-24-2008, 11:24 PM   #15
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Quote:
Originally Posted by SAAB9-3USA View Post
how the hell did u get 26 psi on t7? i thought t7 was smart!

T7 is smart and would have cut it off eventually....hopefully before it killed the motor.


Do you have any type of Data Logger or wideband on your car?
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Old 07-24-2008, 11:51 PM   #16
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his car is fucked up one way or another.
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Old 07-25-2008, 01:19 AM   #17
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Quote:
Originally Posted by Red DIC View Post
his car is fucked up one way or another.

My car in stock trim would boost 15-17PSI with the SMBC and stock software.... 20+ is not expected for a stock car... that is a stage 4 boost level.


Well we will see how it goes as he dials it in.
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Old 07-25-2008, 04:45 AM   #18
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You ever hear those stories...you know, like Wangan Midnight, Herbie, and the like.......cars that defy all odds, seem to have a deathwish, yet at the same time refuse to die like a good little soldier.?

Meet Inga, a 2001 Saab 9-3 that'll take your girlfriend out to a strip bar, smoke a pack of Evolutions a day, and eat the Dalai Lama for breakfast.
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Old 07-25-2008, 08:45 AM   #19
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See the thing is i didn't mean to make the hole bigger on the BPC Sensor! The tip broke off when i pulled the hose off. Thats how i found out that it will push more boost. Honestly i don't know what has been done to the car. I bought it and i could be other 93 SE no problem. So maybe the owner before me did something to it, Hell i don't know. I just thought i would let everyone know what happened.
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Old 07-25-2008, 08:47 AM   #20
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Beat.
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