And here are some useful V8 MAF tables:

2002 - 2004 Corvette (descreened)
1.42 1.76 2.1 2.48 2.86 3.26 3.7 4.18 4.71 5.31 5.97 6.68 7.43 8.23 9.08 9.97 10.91 11.93 13.05 14.27 15.59 16.98 18.47 20.05 21.72 23.48 25.34 27.28 29.34 31.48 33.74 36.11 38.62 41.3 44.17 47.2 50.4 53.77 57.3 61.01 64.88 68.91 73.12 77.47 81.97 86.63 91.45 96.43 101.59 106.9 112.36 118.01 123.83 129.84 136.05 142.48 149.13 155.98 163.06 170.38 177.92 185.7 193.73 201.99 210.52 219.3 228.34 237.64 247.23 257.06 267.16 277.56 288.25 299.25 310.55 322.2 334.16 346.49 359.16 372.22 385.66 399.51 413.77 428.45 443.6

2002 - 2004 Corvette (stock)

1.48 1.8 2.13 2.49 2.89 3.33 3.8 4.34 4.91 5.54 6.22 6.95 7.73 8.56 9.45 10.38 11.38 12.45 13.6 14.85 16.21 17.7 19.32 21.02 22.77 24.54 26.43 28.41 30.49 32.66 34.95 37.36 39.9 42.62 45.48 48.5 51.66 54.98 58.44 62.05 65.82 69.73 73.8 78.03 82.41 86.94 91.63 96.49 101.51 106.71 112.09 117.63 123.35 129.24 135.3 141.53 147.87 154.41 161.15 168.08 175.22 182.58 190.23 198.21 206.34 214.8 223.52 232.52 241.83 251.34 261.13 271.19 281.53 292.15 303.05 314.25 325.73 337.51 349.59 361.96 374.64 387.63 400.92 414.53 428.46

1998 - 2000 Corvette
2.46 2.86 3.29 3.77 4.3 4.89 5.54 6.25 7.02 7.87 8.77 9.73 10.73 11.81 12.98 14.22 15.56 16.99 18.52 20.15 21.9 23.77 25.78 27.9 30.1 32.37 34.71 37.16 39.72 42.38 45.19 48.13 51.2 54.48 58.02 61.77 65.71 69.85 74.1 78.52 83.1 87.8 92.71 97.81 103.16 108.77 114.57 120.57 126.76 133.14 139.7 146.39 153.27 160.26 167.52 174.95 182.65 190.59 198.77 207.2 215.89 224.86 234.11 243.64 253.48 263.63 274.09 284.89 296.03 307.52 319.37 331.59 344.2 357.2 370.6 384.43 398.68 413.37 428.52 428.52 428.52 428.52 428.52 428.52 428.52

1998 - 2002 F-Body LS1 2.32 2.7 3.15 3.65 4.16 4.73 5.36 6.05 6.8 7.64 8.53 9.47 10.43 11.45 12.56 13.78 15.09 16.49 17.98 19.58 21.26 23.03 24.91 26.88 28.95 31.13 33.4 35.78 38.28 40.93 43.73 46.69 49.8 53.07 56.51 60.11 63.88 67.8 71.9 76.16 80.58 85.16 89.91 94.83 99.93 105.2 110.65 116.28 122.12 128.15 134.38 140.87 147.59 154.53 161.72 169.15 176.82 184.73 192.82 201.15 209.74 218.61 227.77 237.26 247.08 257.27 267.86 278.88 290.34 302.31 314.81 327.88 341.56 355.91 370.95 386.76 403.36 420.83 439.2 458.52 478.84

Northstar

1.59 1.88 2.2 2.58 2.99 3.45 3.95 4.5 5.1 5.76 6.46 7.23 8.06 8.95 9.9 10.91 11.98 13.14 14.39 15.74 17.19 18.74 20.39 22.14 23.99 25.95 27.99 30.14 32.38 34.71 37.16 39.73 42.5 45.41 48.47 51.67 55.02 58.48 62.1 65.86 69.77 73.82 78.06 82.48 87.07 91.82 96.74 101.82 107.08 112.48 118.07 123.83 129.76 135.87 142.17 148.61 155.26 162.11 169.17 176.44 183.94 191.72 199.8 208.06 216.62 225.44 234.52 243.89 253.45 263.21 273.23 283.55 294.15 305.06 316.32 327.93 339.92 352.32 365.16 378.47 392.3

6L truck

1.59 1.88 2.2 2.58 2.99 3.45 3.95 4.5 5.1 5.76 6.46 7.23 8.06 8.95 9.9 10.9 12 13.1 14.4 15.7 17.2 18.7 20.4 22.1 24 26 28 30.1 32.4 34.7 37.2 39.7 42.5 45.4 48.5 51.7 55 58.5 62.1 65.9 69.8 73.8 78.06 82.48 87.07 91.82 96.74 101.8 107.1 112.5 118.1 123.8 129.8 135.9 142 148.6 155.3 162.1 169.2 176.4 183.9 191.7 199.8 208.1 216.6 225.4 234.5 243.9 253.5 263.2 273.2 283.6 294.2 305.1 316.3 327.9 339.9 352.32 365.16 378.47 392.3 406.7 421.7 437.34 453.69

5.3 truck

1.29 1.59 1.88 2.2 2.58 2.99 3.45 3.95 4.5 5.1 5.76 6.46 7.23 8.06 8.95 9.9 10.91 11.98 13.14 14.39 15.74 17.19 18.74 20.39 22.14 23.99 25.95 27.99 30.14 32.38 34.71 37.16 39.73 42.5 45.41 48.47 51.67 55.02 58.48 62.1 65.86 69.77 73.82 78.06 82.48 87.07 91.82 96.74 101.82 107.08 112.48 118.07 123.83 129.76 135.87 142.17 148.61 155.26 162.11 169.17 176.44 183.94 191.72 199.8 208.06 216.62 225.44 234.52 243.89 253.45 263.21 273.23 283.55 294.15 305.06 316.32 327.93 339.92 352.32 365.16 378.47 392.3 406.7 421.7 437.34

ZL1

1.59 1.88 2.2 2.58 2.99 3.45 3.95 4.5 5.1 5.76 6.46 7.23 8.06 8.95 9.9 10.91 11.98 13.14 14.39 15.74 17.19 18.74 20.39 22.14 23.99 25.95 27.99 30.14 32.38 34.71 37.16 39.73 42.5 45.41 48.47 51.67 55.02 58.48 62.1 65.86 69.77 73.82 78.06 82.48 87.07 91.82 96.74 101.82 107.08 112.48 118.07 123.83 129.76 135.87 142.17 148.61 155.26 162.11 169.17 176.44 183.94 191.72 199.8 208.06 216.62 225.44 234.52 243.89 253.45 263.21 273.23 283.55 294.15 305.06 316.32 327.93 339.92 352.32 365.16 378.47 392.3 406.7 421.7 437.34 453.69

Monaro

2.14 2.59 3.07 3.59 4.15 4.74 5.4 6.1 6.85 7.67 8.55 9.48 10.5 11.59 12.76 14.02 15.34 16.95 18.66 20.52 22.29 24.16 26.16 28.26 30.48 32.83 35.3 37.91 40.66 43.54 46.57 49.74 53.06 56.55 60.19 63.98 67.95 72.09 76.41 80.91 85.58 90.45 95.5 100.74 106.2 111.84 117.7 123.76 130.04 136.54 143.26 150.2 157.38 164.79 172.44 180.32 188.46 196.84 205.48 214.38 223.53 232.95 242.64 252.6 262.84 273.37 284.17 295.27 306.66 318.34 330.33 342.62 355.21 368.13 381.35 394.9 408.77 422.97 437.5 452.37 467.58 483.13 499.02 511.99 511.99

2004 GTO

2.41 2.8 3.22 3.69 4.22 4.8 5.45 6.16 6.94 7.77 8.67 9.63 10.64 11.72 12.88 14.13 15.48 16.91 18.46 20.1 21.85 23.7 25.67 27.74 29.94 32.26 34.7 37.27 39.98 42.82 45.78 48.89 52.13 55.51 59 62.63 66.41 70.36 74.48 78.84 83.41 88.18 93.15 98.32 103.7 109.34 115.16 121.18 127.4 133.81 140.37 146.98 153.79 160.77 167.93 175.27 182.8 190.62 198.7 207.02 215.59 224.44 233.54 242.91 252.55 262.48 272.7 283.19 293.98 305.05 316.42 328.09 340.04 352.3 364.84 377.69 390.82 404.24 417.95 431.95 446.22 460.77 475.6 490.7 506.05

 

Scott,

If you could get your hands on an LT1 MAF table, that would be very useful to guys that are looking for a MAF table that moves a lot of air. This is what I've heard, but I'm still looking for it.

John

 

Usefull info. You should "sticky" that.

 

nevermind.....

 

JohnT,

Here is a MAF table from a 94-95 Camaro Z28. I read a stock bin from a 94-95 car, and exported it using LT1-Edit.

Hope this helps...

 

Thank you Joel!

John

 

No Problem, Glad to help out.

Thanks,

Joel

 

just looking for the Northstar Maf table, and I found it. Thanks for posting this Scott!

 

Question for the PROs.
What do you do when the big (V8) MAFs are outflowed (going over 11500 Hz)?

 

This is only an issue on our fastest cars...

In these cases, we'll run a AFC and set it to whatever percentage of reduction is required to stay under 11,500 Hz. Then we'll change the fuel injector scaling in the PCM by that same percentage.

 

Question for the PROs.
What do you do when the big (V8) MAFs are outflowed (going over 11500 Hz)?

I had this problem for awhile and was frustrated. Solution was to run the SLP MAF from INTENSE, highest MAFF I've seen since the install was 10900. Well within the allowed table. It may take some PCM tweaking, but it works just fine now.
Oh... thats running a MP112 with a 2.7 pulley too

 

One more question for Scott. The tables you posted show only the flow numbers but not the coresponding frequencies. I suspect not all of these show flow at the same frequencies. How we deal with that?

 

how to i add the 00' MAF numbers in HPtuners because we recently found out that I could be running off of the 99' MAF tables instead of the 2000 which are much diff. up top.

~Biggie

 

bump

 

Hey guys, I think I'm having trouble with my SLP/LS1 maff sensor. I do have the '98 Fbody LS1 maf tables in the pcm too. Have spoken with some knowledgeable people about this, and they think it's the maf sensor. I'm be cruising along say 55 mph and just randomly my LTFT's will go from around zero up to +16.4 and my AF (from my PLX 250 wideband) will show an AF of 10.0:1! So somehow the pcm is being commanded tons of fuel thinking it's lean when it's not, and my car drowns in fuel when this happens. Also get a "chugging" at idle just every so often when it's doing this. This all doesn't happen all the time, it's somewhat random but when it does it it always does it under gentle cruise. So......I have the choice of either running the 75mm maf sensor & matching maf tables that John T. is running (which I just hate the thought of going from 85mm to 75mm thinking it might restrict me some) or using an LQ4 maf. If I use the LQ4 maf, can anyone tell me if I use either the 5.3L or the 6.0L truck mafs on the first page of this thread?

If not, does anyone have the matching maf tables I could use with the LQ4 maf?

Thanks!

 

Hey guys, I think I'm having trouble with my SLP/LS1 maff sensor. I do have the '98 Fbody LS1 maf tables in the pcm too. Have spoken with some knowledgeable people about this, and they think it's the maf sensor. I'm be cruising along say 55 mph and just randomly my LTFT's will go from around zero up to +16.4 and my AF (from my PLX 250 wideband) will show an AF of 10.0:1! So somehow the pcm is being commanded tons of fuel thinking it's lean when it's not, and my car drowns in fuel when this happens. Also get a "chugging" at idle just every so often when it's doing this. This all doesn't happen all the time, it's somewhat random but when it does it it always does it under gentle cruise. So......I have the choice of either running the 75mm maf sensor & matching maf tables that John T. is running (which I just hate the thought of going from 85mm to 75mm thinking it might restrict me some) or using an LQ4 maf. If I use the LQ4 maf, can anyone tell me if I use either the 5.3L or the 6.0L truck mafs on the first page of this thread?

If not, does anyone have the matching maf tables I could use with the LQ4 maf?

Thanks!

I would try and get an LQ4 MAF from the 6.0l truck and use the table from above. It seems that this is one of the easiest to tune setups.

 

I would try and get an LQ4 MAF from the 6.0l truck and use the table from above. It seems that this is one of the easiest to tune setups.

So I've got an LQ4 maf sitting at the house, and I hear everyone for whatever reason just uses L67 maf tables and adjusts them a little for the LQ4 maf. Question is, is anyone using the 6.0L or 5.3L truck tables in their pcm with the LQ4 maf? Anyone? Just trying to figure out which tables to use in my pcm........

Thanks.

 

MAF Columns

Just picked up an 02 - 04 Vette MAF.

Problem.

99 GTP MAF has 4 fewer columns then the 02 - 04 Vette MAF.

GTP MAF is in 125Hz increments starting at 1500Hz to 11,500Hz
(80 Columns)

Vet MAF is in ???Hz increments starting at what Hz? and what is the highest Hz the sensor flows?

If the Vette MAF is also 1500 - 11,500 I imagin it moves in 120Hz increments?

Anyone know?

Thanks!
-Andy

 

UPDATE:

Corvette Table goes to 12000 v.s. 11500 The last 4 values are for 11625, 11750, 11875, and 12000

-A

 

hey anyone have MAF tables for a 2000 L36?

 

i have an LS6 MAF that ive damaged somehow, what MAF would be the best to get as a replacement? its the MAF that came with the ZZP LS! kits when they first became available.

 

I have a good one for you...

I was digging thru some of the codes I have available to me and noticed that MAF flow rates were different between differing vehicles/engines, but I don't remember the sensor itself being any different. To explain in greater detail, note the two MAF tables from different vehicles...

1996 Pontiac Trans Am LT1 MAF tables:

Hz gm/sec
1488 2.45
1616 2.88
1744 3.34
1872 3.87
2000 4.45
2128 5.12
2256 5.85
2384 6.64
2512 7.49
2640 8.41
2768 9.40
2896 10.46
3024 11.60
3152 12.82
3280 14.11
3408 15.48
3536 16.98
3664 18.60
3792 20.34
3920 22.22
4048 24.23
4176 26.35
4304 28.60
4432 30.97
4560 33.43
4688 35.99
4816 38.69
4944 41.54
5072 44.52
5200 47.66
5328 50.97
5456 54.42
5584 58.04
5712 61.81
5840 65.77
5968 69.92
6096 74.27
6224 78.82
6352 83.59
6480 88.58
6608 93.80
6736 99.25
6864 104.93
6992 110.88
7120 117.04
7248 123.42
7376 130.03
7504 136.87
7632 143.92
7760 151.14
7888 158.63
8016 166.31
8144 174.03
8272 182.36
8400 191.01
8528 200.07
8656 209.43
8784 219.12
8912 229.15
9040 239.52
9168 250.23
9296 261.30
9424 272.71
9552 284.48
9680 296.61
9808 309.10
9936 321.96
10064 335.20
10192 348.80
10320 362.77
10448 377.14
10576 391.88
10704 407.02
10832 422.55
10960 438.46
11088 454.78
11216 471.51

1998 Chevy Truck 5.7L Vortec V8

Hz gm/sec
1500 1.594
1625 1.844
1750 2.141
1875 2.461
2000 2.820
2125 3.227
2250 3.672
2375 4.164
2500 4.711
2625 5.281
2750 5.898
2875 6.563
3000 7.258
3125 8.008
3250 8.813
3375 9.680
3500 10.594
3625 11.594
3750 12.664
3875 13.789
4000 14.984
4125 16.250
4259 17.578
4375 18.969
4500 20.430
4625 21.945
4657 23.539
4875 25.195
5000 27.000
5125 28.906
5250 30.914
5375 33.023
5500 35.258
5625 37.625
5750 40.102
5875 42.695
6000 45.398
6125 48.219
6250 51.141
6375 54.172
6500 57.305
6625 60.563
6750 63.938
6875 67.438
7000 71.063
7125 74.813
7250 78.688
7375 82.695
7500 86.828
7625 91.094
7750 95.469
7875 99.977
8000 104.625
8125 109.422
8250 114.336
8375 119.492
8500 124.828
8625 130.344
8750 136.047
8875 141.945
9000 148.047
9125 154.344
9250 160.844
9375 167.547
9500 174.469
9625 181.594
9750 188.938
9875 196.484
10000 204.250
10125 212.234
10250 220.422
10375 228.828
10500 237.438
10625 246.266
10750 255.289
10875 256.000
11000 256.000

Ok, at first glance, one would assume these are different MAF sensors. However, I just checked the MAF sensor part numbers for both vehicles thru 3 different vendors, and discovered both vehicles listed above use the EXACT SAME p/n MAF sensor (AC Delco 213-353). Here is the complete vehicle list that Delco says this MAF sensor fits: http://198.208.187.182/internet/VehiclePartFits.jsp?part=213-353&autosel=A&pageno=0

What gives? If it is the same sensor, why is GM assigning different flow rates to it?

Just some more info, appearantly the MAF sensor is the exact same between 1996-1998 3800 Series II n/a AND SC engines: http://198.208.187.182/internet/VehiclePartFits.jsp?part=213-1625&autosel=A&pageno=0

1999-2005 3800 same deal here too: http://198.208.187.182/internet/VehiclePartFits.jsp?part=213-1617&autosel=A&pageno=0

 

Very common, the application of the MAF determines the calibration. So any part of the intake tract gets changed, the MAF flow will need some minor updates. Look at a Ram Air TA vs a non Ram Air or even a Ram Air or Non RA to a Vette, or a Z28 vs a Z28 SS (Ram Air).

Just use the MAF table as a starting point, but in reality, unless it is in the identical application, it will always be different than what the original application was. i.e. Z06 MAF in a L18 496 is characterized quite differently.

The MAF in the Vortec trucks is the same as the LT1 Z28's/TA's and Vettes. 454, 350, LT1 or LT4. All same MAF.

Attached is some more MAF's that are out there...LT1, LT4, L31, L29, L18, Z06/LS6.

Edit: Updated spreadsheet for Z06 (2001 and 2004).

I have a good one for you...

I was digging thru some of the codes I have available to me and noticed that MAF flow rates were different between differing vehicles/engines, but I don't remember the sensor itself being any different. To explain in greater detail, note the two MAF tables from different vehicles...



Ok, at first glance, one would assume these are different MAF sensors. However, I just checked the MAF sensor part numbers for both vehicles thru 3 different vendors, and discovered both vehicles listed above use the EXACT SAME p/n MAF sensor (AC Delco 213-353). Here is the complete vehicle list that Delco says this MAF sensor fits: Parts Information | ACDelco

What gives? If it is the same sensor, why is GM assigning different flow rates to it?

Just some more info, appearantly the MAF sensor is the exact same between 1996-1998 3800 Series II n/a AND SC engines: Parts Information | ACDelco

1999-2005 3800 same deal here too: Parts Information | ACDelco

 

anyone know if the '98 and earlier MAF's run different tables than the '99 and later MAF's?? Like say I am running a 98 ported TB on my 2000 L36 is that an issue that I should look in to??

 

flow tables are vehical specific because different cars ahve different intake systems... even when using the same MAF

 

One question I have is how does one go about "installing" different MAF tables in the PCM? I'm gonna have to, just to get things right, since I have 1997 L67 MAF with a 1998 PCM.