When is a bigger MAF needed? - Pontiac G8 Forum: G8 Forums - G8Board.com
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post #1 of 14 (permalink) Old 01-02-2013, 03:23 PM Thread Starter
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When is a bigger MAF needed?

So I am finally getting to mod my car a bit. It is getting a CAI, it has axle-back exhaust and is also getting LTH's. I am thinking Rick's intake manifold would be good, but if I go with that, do I need the ported TB and a bigger (90mm) MAF too? It will be topped off with a PatG tune.
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post #2 of 14 (permalink) Old 01-02-2013, 03:25 PM
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no you dont need it. it will run like a scalded dog fully bolted with rick's intake.
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post #3 of 14 (permalink) Old 01-02-2013, 04:30 PM
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yea, you dont need a new Maf for along time.... only people pushing alot of air might need one.... ie... supercharger or turbo at high boost/flow... most will never need this..

09 Panther Black G8 GT
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post #4 of 14 (permalink) Old 01-02-2013, 04:34 PM
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Pat G programmed Speed Density and MAF for my car. Runs great with my Procharger... stock MAF too.


2008 G8 GT - Procharger 14PSI D1SC, Squash Double Pumper & Fuel Rails, ID725, ZR1 Map, Port & Polished w/ 4 angle heads, Forge 9.5:1, Pacesetters 1 3/4" LTH (CAT-less), Flowmaster Super 44s, X-pipe, Brembos, 3200 FTI Triple Stall, EBC rotors & yellow pads, Motegii MR120 20x9 +38 275/30s wheels, Pedders Coilovers/Swaybars, BMR Strut bar, Pat G cam/tune!

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post #5 of 14 (permalink) Old 01-02-2013, 05:26 PM
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Why is that I'll see it occasionally on some n/a g8?
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post #6 of 14 (permalink) Old 01-02-2013, 05:40 PM
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A bigger one is needed when the stock one limits have been reached whether by airflow (G/sec) or frequency (HZ).

Most people do whatever to increase power, including changing to a bigger MAF when the stocker can do the job, changing to a bigger MAF is not a plug and play thing, your PCM has to be calibrated to know working parameters from the new MAF. Normally the LS7 style is preferred because the parameters from the Z06 MAF are readily available.

You don't need one, Rick's ported intake would do wonders, and the stock MAF would be more than adequated.

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post #7 of 14 (permalink) Old 01-02-2013, 05:59 PM
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As I'm ignorant in this, can't Speed Density take over in the higher limits where the MAF may max out?

I should ask Pat G that.


2008 G8 GT - Procharger 14PSI D1SC, Squash Double Pumper & Fuel Rails, ID725, ZR1 Map, Port & Polished w/ 4 angle heads, Forge 9.5:1, Pacesetters 1 3/4" LTH (CAT-less), Flowmaster Super 44s, X-pipe, Brembos, 3200 FTI Triple Stall, EBC rotors & yellow pads, Motegii MR120 20x9 +38 275/30s wheels, Pedders Coilovers/Swaybars, BMR Strut bar, Pat G cam/tune!

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post #8 of 14 (permalink) Old 01-02-2013, 06:00 PM
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Quote:
Originally Posted by BLKG8 View Post
Why is that I'll see it occasionally on some n/a g8?
Probably physically bigger removing a slight airflow bottle neck maybe?


2008 G8 GT - Procharger 14PSI D1SC, Squash Double Pumper & Fuel Rails, ID725, ZR1 Map, Port & Polished w/ 4 angle heads, Forge 9.5:1, Pacesetters 1 3/4" LTH (CAT-less), Flowmaster Super 44s, X-pipe, Brembos, 3200 FTI Triple Stall, EBC rotors & yellow pads, Motegii MR120 20x9 +38 275/30s wheels, Pedders Coilovers/Swaybars, BMR Strut bar, Pat G cam/tune!

Old: 353.8
New: 632/530 Mustang Dyno
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post #9 of 14 (permalink) Old 01-02-2013, 07:57 PM
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Quote:
Originally Posted by ExpLiciTSainT View Post
As I'm ignorant in this, can't Speed Density take over in the higher limits where the MAF may max out?

I should ask Pat G that.
you can just remove MAF is you do a full SD tune... if mixed or split.... not sure on that one but i would assume your right?......

09 Panther Black G8 GT
4L80/Procharged F1d/9"rear/430 lsx; 921rwhp; :Worlds Heaviest G8.. ... lol... --4350 lbs without driver VECTOR tune
(I work for GM-- all statements from me are opinions of my own and does not represent GM in any way.)
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post #10 of 14 (permalink) Old 01-02-2013, 09:00 PM
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You definitely don't need the bigger maf, But the LS7 maf responds better IMO. It makes the gas peddle touchier if that makes any sense.


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post #11 of 14 (permalink) Old 01-03-2013, 12:04 PM
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i have a vararam cold air intake can i do this mod? if so where can i get the parts?

09 white hot g8 gt


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post #12 of 14 (permalink) Old 01-06-2013, 01:36 PM
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would a larger ls7 maf result in any gains for me? for 100 buck ill drop it in since im going for a new tune soon

kooks LT headers, hi flow cats, x pipe, corsa exhaust, Vararam CAI, ported TB/intake manifold, underdrive pulley, catch can, qtp electric cut outs, 160 t stat, HSRK, H&R lowering springs, BMR sway bar

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post #13 of 14 (permalink) Old 01-06-2013, 03:11 PM
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I'm still running the stock MAF.....

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post #14 of 14 (permalink) Old 01-06-2013, 04:58 PM
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