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MagnaCharged 122HH TBSS at 15 PSI of Boost

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Old 11-13-2007, 01:57 PM
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I think the velocity of air across the sensors changed greatly when I descreened it and installed the 4" intake. My readings at the time went from the 440's to the 370's (g/sec) with that change alone. I also need to run some logs and see where it is hitting and to see if it is maxed out already and where, I will keep all posted. I will be installing the 100mm MAF in the next week or two and will post up the changes.

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Old 11-13-2007, 07:58 PM
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I am staying tuned for the results..
Old 11-14-2007, 01:25 AM
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Originally Posted by 03sierraslt
I am staying tuned for the results..
You ought to be shot for that pun!
Old 11-14-2007, 07:04 AM
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Originally Posted by GMC_DUDE
You ought to be shot for that pun!
Easy there...
Old 11-14-2007, 07:31 AM
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Originally Posted by 03sierraslt
I am staying tuned for the results..
That is a very fitting response.
Old 11-14-2007, 03:19 PM
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Originally Posted by 03sierraslt
Gotcha, I was just wondering the difference because my stock MAF maxed out pretty quick as far as boost is concerned.
Same here. Mine is maxed out above 5000rpm with only 6lbs. I am curious to see how the 4" maf works out as I still tring to decide if I want to go that route or go 2bar SD. Very nice results so far with the TBSS though.
Old 11-14-2007, 03:50 PM
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Originally Posted by thunder550
What about the PCM hard coded airflow limits? Is it still 512 g/s in that truck or is that one of the new ones that supports up to ~1000 g/s?
What is happening on his setup is similiar to what some guys were doing adding resistors to the MAF to lower the reported airflow. I think Parish even tried this a while back. By reporting lower airflow values to the computer you can stay within the 512g/s limit, just have to adjust fuel/timing accordingly.
Old 11-14-2007, 03:59 PM
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I am staying SD but it never hurts to try to learn more ya know....
Old 11-14-2007, 06:07 PM
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I heard Joe's truck today, very badass sounding indeed!
Old 11-14-2007, 09:29 PM
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The 07 TrailBlazer SS uses the (2) low and high frequency table for the MAF where as the '06 and older trucks have the single MAF table. I am sure that this has something to do with it also.


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