Maf scaling

[FreshDA9]

I searched and was surprised I didn't find anything in the search?

If I wanted to install a LS7 Slot Style Maf into a Camaro/Trans Am with 0411 PCM, how would i properly re-scale the Gen4 Maf to work properly in EFILive? If this is all ready a write up somewhere can someone post a link to said write up, Please?

thanks guys.

:thankyou2:

[joecar]

You would have to correct the MAF table by doing AutoMAF or Calc.VET using a wideband.

[FreshDA9]

I wouldnt have to rescale the HZ load, just tune the curve like normal?

[joecar]

If you can interpolate the Hz scale to fit the LS1 MAF table (requires some math software), then go ahead and do it, but you'll still need to correct/tune it

( the main reason being that your MAF plumbing has it's own characteristics which are different from other vehicles, and which usually will affect how the MAF behaves )

[ScarabEpic22]

Id use the f-body IAT sensor, the LS7 one has a different scaling and EFILive IIRC doesnt have the IAT scaler table to change it.

[joecar]

Erik makes a good point.

[FreshDA9]

Good to know!! thanks guys.

[ddnspider]

I had to scale the LS7 MAF on my turbo 98 TA....but it was the entire tune that had to be scaled, not just the MAF.

[steve40]

is there an automaf tutorial?

[joecar]

is there an automaf tutorial?You do this:
- disable VE (set B0120 to zero).
- disable CL/LTFT/STFT (B3801, B4205, B4206), and SOL if you're running a COS (B3647, B3649).
- set PE safely rich (B3618), and make sure it enables suitably (B3616) .
- log wideband lambda.
- create MAF map of BEN (e.g. BEN pid = "{EXT.WO2LAM1}*{GM.EQIVRATIO}").
- apply low cell count filter and throttle transient filter.
- multiply BEN map into MAF table B5001.
- extrapolate/smooth B5001 to cover un-hit portions of table (should look look like x^4 polynomial curve).

[steve40]

when you say make sure b3616 enables suitably, do you mean to lower the values so it comes in sooner? any idea what that should look like?

[joecar]

when you say make sure b3616 enables suitably, do you mean to lower the values so it comes in sooner? any idea what that should look like?
For example 2002 Camaro has B3616 set to 65% below 3200 rpm, and 35% above 3200 rpm (good), whereas trucks have it set at 90% (bad).


Also set B3608 and B3609 to zero.

[Highlander]

What OS do you have? I can fix the IAT scaling.

[LastCall]

Do you mind sharing how you corrected the IAT scaling?

Sorry for the hijack FreshDA9.

[Highlander]

What OS do you have?

[6768Camaro]

Highlander, if you're still interested in IAT scaling I'm running a 2002 Camaro 12212156.

Thanks

[Highlander]

Highlander, if you're still interested in IAT scaling I'm running a 2002 Camaro 12212156.

Thanks
Send me the file to desaintpreux@gmail.com and i will change the IAT scaling for the LS7 MAF