anyone have a stock magnuson tune for a 2003 5.3?
10-25-2015, 07:45 PM
#1
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anyone have a stock mp112 magnuson tune for a 2003 5.3?
I just installed my used maggie and I am having trouble getting the tune correct. I am using hp tuners. I am going lean under medium throttle. i just installed a new racetronics fuel pump and hotwire kit also have a fuel pressure gauge installed so i know the fueling is not a issue. We went through the maf and ve tuning procedure by the book. under boost i start off fine and then all of a sudden jumps from around 11- 12 up to 14-15 on the wide band. I would like to have the tune that comes with the supercharger to have a better starting point. Or if somebody would like to take a look at my tune and a log i can email it. thanks.
Last edited by Mr_Safety; 10-25-2015 at 10:06 PM. Reason: Left out info
10-26-2015, 04:24 PM
#3
I'm assuming you are still running the stock operating system (1bar, maf, closed loop)? How did the timing look where it went lean? How about calculated airflow? Map reference?
For a Magnuson file to compare, I am sure you could fine one in the HPT tune repository... https://www.hptuners.com/customers/tune.php You will have to be logged into HPT site to use it.
For a Magnuson file to compare, I am sure you could fine one in the HPT tune repository... https://www.hptuners.com/customers/tune.php You will have to be logged into HPT site to use it.
10-26-2015, 04:24 PM
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here is one I have for a 05 im not sure if its a stock magnacharger file but its atleast something to compare yours to
05 5.3l magnacharger maf.hpt
05 5.3l magnacharger maf.hpt
10-26-2015, 05:47 PM
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I'm assuming you are still running the stock operating system (1bar, maf, closed loop)? How did the timing look where it went lean? How about calculated airflow? Map reference?
For a Magnuson file to compare, I am sure you could fine one in the HPT tune repository... https://www.hptuners.com/customers/tune.php You will have to be logged into HPT site to use it.
For a Magnuson file to compare, I am sure you could fine one in the HPT tune repository... https://www.hptuners.com/customers/tune.php You will have to be logged into HPT site to use it.
10-26-2015, 05:51 PM
#6
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here is one I have for a 05 im not sure if its a stock magnacharger file but its atleast something to compare yours to
Attachment 75559
Attachment 75559
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10-26-2015, 10:37 PM
#9
MP112 and TVS1900 use the same tune.
The tune should be fairly close for 2003-2005 The 06-07 Classic had some things changed in the OS Like the pedal, TAC module and TB.
EDIT: 03 is a return style and you will need the correct info in the fuel tables for that.
The tune should be fairly close for 2003-2005 The 06-07 Classic had some things changed in the OS Like the pedal, TAC module and TB.
EDIT: 03 is a return style and you will need the correct info in the fuel tables for that.
Last edited by 1FastBrick; 10-27-2015 at 02:12 PM. Reason: added a correction.
10-27-2015, 07:58 AM
#10
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I'm using the 42# injectors that come with the supercharger kit. Upgraded the fuel pump to the racetronics with a hot wire kit. It is a return style system and it uses the stock vacuum reference regulator from the stock fuel rails. I have a fuel pressure gauge in the cab but I haven't paid much attention to it on deceleration I can check on that though.