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Thread: G8 moving to LS7 MAF

  1. #1

    G8 moving to LS7 MAF

    I notice when I'm in the staging lanes my IAT's sky rocket. By the end of the run they are not much better. I broke it out to a few different locations and still notice a discrepancy. I've been reading about the LS7 card style. Some say the iat reacts quicker and or instantly when the blade opens. Anybody have experience in this dept? I know I won't gain any power, just trying to get faster response.

  2. #2
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    Yes it does. Copy the IAT tables from a Corvette and retune the MAF. Temps recover VERY FAST. I have a G8 with a Vararam. Make sure you put a screen on it. Inbox me and I can send a parts list. Ive been running this setup for about 4 or 5 years.
    Last edited by jaydubb71; 1 Week Ago at 04:06 PM.
    Daily Driver= 1998 Pontiac Grand Prix GTP Coupe (3.4 pulley, SD Headers, SLP catback, FWI, 180 t-stat, hotwired FP, Autolite 103's, poly dogbone bushings, solid rubber engine and trans mounts, self tuned with HP Tuners)
    Weekend Cruiser= 2009 Pontiac G8 GT (Vararam, TSP LS3 N/A Stage 1, OBX, CTS-V converter, MagnaFlows w/ J-Pipes, 160 t-stat, self tuned with HP Tuners)
    Project Car= 1991 Chevrolet Camaro RS (On3 7875, LM7 build on hold)
    Truck= 1995 K1500 ECSB 5.0 5-speed (Dusty...)

  3. #3
    Senior Tuner Ben Charles's Avatar
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    Rescale MAF along with iat, screen is a good idea, will smooth out the MAF HZ

    Email Tunes, PM me for more info
    96 TA Blown/Stroked, 4L80E/Fab 9
    15 C7 A8 H/C 2.3 Blower/PI
    14 Gen 5 Viper
    Custom Mid Engine chassis, AKA GalBen C

  4. #4
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    Quote Originally Posted by Ben Charles View Post
    Rescale MAF along with iat, screen is a good idea, will smooth out the MAF HZ
    I cant remember which direction I went with the MAF scaling. Its been a while. But its worth the swap...
    Daily Driver= 1998 Pontiac Grand Prix GTP Coupe (3.4 pulley, SD Headers, SLP catback, FWI, 180 t-stat, hotwired FP, Autolite 103's, poly dogbone bushings, solid rubber engine and trans mounts, self tuned with HP Tuners)
    Weekend Cruiser= 2009 Pontiac G8 GT (Vararam, TSP LS3 N/A Stage 1, OBX, CTS-V converter, MagnaFlows w/ J-Pipes, 160 t-stat, self tuned with HP Tuners)
    Project Car= 1991 Chevrolet Camaro RS (On3 7875, LM7 build on hold)
    Truck= 1995 K1500 ECSB 5.0 5-speed (Dusty...)

  5. #5
    Thanks. I'm trying to find a Vararam for sale. Already got the MAF parts sitting in the shopping cart on summit. And already took the liberty to modify a tune. I used 2011 camaro scaling and added 5% to the MAF table to start. Is the Corvette one any different? Thanks.

  6. #6
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    Quote Originally Posted by Srblacks13 View Post
    Thanks. I'm trying to find a Vararam for sale. Already got the MAF parts sitting in the shopping cart on summit. And already took the liberty to modify a tune. I used 2011 camaro scaling and added 5% to the MAF table to start. Is the Corvette one any different? Thanks.
    No not really. I just used the Corvette table.
    Daily Driver= 1998 Pontiac Grand Prix GTP Coupe (3.4 pulley, SD Headers, SLP catback, FWI, 180 t-stat, hotwired FP, Autolite 103's, poly dogbone bushings, solid rubber engine and trans mounts, self tuned with HP Tuners)
    Weekend Cruiser= 2009 Pontiac G8 GT (Vararam, TSP LS3 N/A Stage 1, OBX, CTS-V converter, MagnaFlows w/ J-Pipes, 160 t-stat, self tuned with HP Tuners)
    Project Car= 1991 Chevrolet Camaro RS (On3 7875, LM7 build on hold)
    Truck= 1995 K1500 ECSB 5.0 5-speed (Dusty...)

  7. #7
    Where to get the screen? I've seen some people use them and some don't. Thanks.

  8. #8
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    Quote Originally Posted by Srblacks13 View Post
    Where to get the screen? I've seen some people use them and some don't. Thanks.
    Saxonpc.com 100mm. Do you have the parts for the tube and couplers?

  9. #9
    I do not yet. I have them in the shopping cart waiting on the summit website. Spectre 9705 and 9771, or so I have read.

  10. #10
    Senior Tuner Ben Charles's Avatar
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    Quote Originally Posted by jaydubb71 View Post
    I cant remember which direction I went with the MAF scaling. Its been a while. But its worth the swap...
    Larger MAF tube/housing will report a lower Hz for same given airflow.. so you must always RAISE the values

    Email Tunes, PM me for more info
    96 TA Blown/Stroked, 4L80E/Fab 9
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    Custom Mid Engine chassis, AKA GalBen C

  11. #11
    Which values? I modified the iat values. Do I need to modify htz also? Thanks.

  12. #12
    Senior Tuner Ben Charles's Avatar
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    MAF should always be Calibrated on every setup.. so yes

    Email Tunes, PM me for more info
    96 TA Blown/Stroked, 4L80E/Fab 9
    15 C7 A8 H/C 2.3 Blower/PI
    14 Gen 5 Viper
    Custom Mid Engine chassis, AKA GalBen C

  13. #13
    OH, yeah I know that. I thought you meant something else. Thanks