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» Northern California Ford Owners     » Automotive   » Tech Talk   » What MAF to use with 42lbs injectors!

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Author Topic: What MAF to use with 42lbs injectors!
BLoWN FR500
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I want to know what's the best mass air to use for 42lb injectors on a 5.0. Heads, cam, intake,supercharged! Also how many millimeters should I get as well

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92 Fobra Supercharged - Stolen
89 Turbod Fobra - Sold
90 Lx - Sold
86 Lx - Sold
96 Cobra

I Stay Charged Like The Energizer Bunny

Posts: 1226 | From: San Leandro | Registered: Nov 2008  |  :
Blind
2.3L
CAFords OG
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blow through or draw through?

I went with a PMAS blow through 80mm on my combo, h/c/i/procharger.

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89 LX Notchback ex 4cyl, 14psi
02 Harley F150, 15psi

Posts: 8521 | From: Fairfield | Registered: Jul 2003  |  :
stangin'
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i had a LMAF on a stock hci blown setup. after i upgraded my hci, i contacted aed and told them my setup. they recommended i swap out to a pro-m 80mm maf which i did. tune came out great and it's been running strong.

i would ask the tuner what they recommend.

[ December 09, 2010, 05:33 PM: Message edited by: stangin' ]

Posts: 2993 | From: Bay Area | Registered: Oct 2001  |  :
2T0NE
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I also was going to run the lightning mass air ,then I also talked to aed and they said pro-m..so 75MM is what I will be running

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Originally posted by x Raelsmar x:
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Posts: 14676 | From: 760 carlsbad | Registered: Mar 2004  |  :
50Reasons
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Pro m meter 80 mm and make sure it's for a supercharger

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50Reasons Car Club President
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Posts: 9483 | From: Sacramento Ca | Registered: Jan 2006  |  :
BLoWN FR500
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Well Nextgen recommended lightning mass air and my tune came out like shit, cars boggin/misfiring. Big power loss! So I'm tryna switch it up

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92 Fobra Supercharged - Stolen
89 Turbod Fobra - Sold
90 Lx - Sold
86 Lx - Sold
96 Cobra

I Stay Charged Like The Energizer Bunny

Posts: 1226 | From: San Leandro | Registered: Nov 2008  |  :
50Reasons
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[ December 10, 2010, 06:38 AM: Message edited by: 50Reasons ]

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Posts: 9483 | From: Sacramento Ca | Registered: Jan 2006  |  :
50Reasons
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quote:
Originally posted by BLoWN FR500:
Well Nextgen recommended lightning mass air and my tune came out like shit, cars boggin/misfiring. Big power loss! So I'm tryna switch it up

I'm running a 306 with heads cam intake 42lb inj vortech S trim whith no tune car runs smooth

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50Reasons Car Club President
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Posts: 9483 | From: Sacramento Ca | Registered: Jan 2006  |  :
510.86.notch
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quote:
Originally posted by BLoWN FR500:
Well Nextgen recommended lightning mass air and my tune came out like shit, cars boggin/misfiring. Big power loss! So I'm tryna switch it up

NEXtGEN thats where you went wrong..they just want your money.

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91 mustang coupe
84 mustang svo
89 mustang.4cyl5speed.
87 thunderbird turbo coupe-sold
86 mustang GT hatch-sold-kinda
86 mustang coupe-sold

Posts: 1062 | From: san leandro | Registered: Apr 2010  |  :
SteveL
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quote:
Originally posted by BLoWN FR500:
Also how many millimeters should I get as well

Pro M has some good info on selecting the right size here:

http://www.promracing.com/the-facts-about-mass-air-flow-meters-page-9

Using larger than needed MAFs or throttle bodies does not make more horsepower.

Posts: 578 | From: San Jose, CA | Registered: May 2002  |  :
92stangLX
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If you car is already tuned for a lightning MAF then you will need a retune. Are you sure it's the MAF? I would suggest bringing it back to Nexgen and get them to sort it out before swapping parts.

SCT MAF is probably one of the best and will require a tune to work with your car.

Posts: 5302 | From: San Francisco | Registered: Sep 2003  |  :
1993lx50
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My bad for jumping in but I almost got the same set up and I'm about to go with 42s n lightning mass air that mass air isn't that good as the pro m or what
Posts: 767 | Registered: Aug 2010  |  :
AR_Stang
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Im in the same boat, 42lb injectors with a lmaf but with a turbo setup on a fox.

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-American Revolution-

Posts: 553 | From: 831 | Registered: Aug 2010  |  :
CobramanPhil
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There is absolutely nothing wrong the the LMAF itself. To be honest the aftermarket manufacturers barely come close. The meter offers good resolution at idle and low flow points allowing for good idle tuning/control and it also offers decent range for applications using enough fuel to require 42# injectors. Now if you are going big...a combo that will peg the LMAF then of course you need something bigger(not necessarily better). I've seen 480rwhp blown 302 combos with various injectors 42-50-60lbs) and they do come close if not right on pegging the meter (with 42-50 injectors getting dangerously high in duty cycle).

I guess it depends on what your current combo is...

Posts: 1016 | From: California, Bay Area | Registered: Dec 2002  |  :
BLoWN FR500
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I guess Nextgen is where i will be heading this week. Thanks for all the help guys

--------------------
92 Fobra Supercharged - Stolen
89 Turbod Fobra - Sold
90 Lx - Sold
86 Lx - Sold
96 Cobra

I Stay Charged Like The Energizer Bunny

Posts: 1226 | From: San Leandro | Registered: Nov 2008  |  :


 
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