make your own 4" maf
Thread Starter
Senior Member
iTrader: (5)
Joined: Dec 2008
Posts: 719
Likes: 0
From: Alabama
Car: 1986 camaro
Engine: ls2
Transmission: FLT stage 6 60e
Axle/Gears: 8.8 with 3.73's
make your own 4" maf
instead of buying a tsp, lingenfelter, etc. maf and housing I went the cheaper way.... spectre 4' maf housing 9705 (34.95), ebay ls7 maf (49.95), and an ebay pigtail (21.95)....ends you with this
Thread Starter
Senior Member
iTrader: (5)
Joined: Dec 2008
Posts: 719
Likes: 0
From: Alabama
Car: 1986 camaro
Engine: ls2
Transmission: FLT stage 6 60e
Axle/Gears: 8.8 with 3.73's
re: make your own 4" maf
i had mine tuned out also... major pita for myself! cant even change the airfilter without it affecting the tune..
Joined: Sep 2005
Posts: 6,258
Likes: 6
From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
re: make your own 4" maf
Wow this may be something I need to do this winter. My whole cai is 4" except for where it has to step down to the 3 1/2" or 3 1/4", whatever it is, stock truck maf.
My tuner had mine tuned out the first go around also, but the start up issues were annoying, couldn't get it to be reliable on a cold start.
My tuner had mine tuned out the first go around also, but the start up issues were annoying, couldn't get it to be reliable on a cold start.
Thread Starter
Senior Member
iTrader: (5)
Joined: Dec 2008
Posts: 719
Likes: 0
From: Alabama
Car: 1986 camaro
Engine: ls2
Transmission: FLT stage 6 60e
Axle/Gears: 8.8 with 3.73's
Trending Topics
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
re: make your own 4" maf
Added a link to this thread in the LS1 swap sticky.
Thread Starter
Senior Member
iTrader: (5)
Joined: Dec 2008
Posts: 719
Likes: 0
From: Alabama
Car: 1986 camaro
Engine: ls2
Transmission: FLT stage 6 60e
Axle/Gears: 8.8 with 3.73's
re: make your own 4" maf
I see no reason paying 200+ dollars when you could put together the same thing for 100...
Senior Member
iTrader: (1)
Joined: Feb 2000
Posts: 720
Likes: 0
From: Shakopee, Mn
Car: 89 Iroc
Engine: 305TPI
Transmission: T5
re: make your own 4" maf
One question? Wouldn't a 4' (foot) MAF go half way into the cabin of the car? 
On a serious note, that looks like a great alternative.

On a serious note, that looks like a great alternative.
Thread Starter
Senior Member
iTrader: (5)
Joined: Dec 2008
Posts: 719
Likes: 0
From: Alabama
Car: 1986 camaro
Engine: ls2
Transmission: FLT stage 6 60e
Axle/Gears: 8.8 with 3.73's
Joined: Sep 2005
Posts: 6,258
Likes: 6
From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
re: make your own 4" maf
Is there a way to use that Spectre housing and a stock truck maf?
Supreme Member
iTrader: (4)
Joined: Mar 2009
Posts: 3,079
Likes: 4
From: Pepperell, MA
Car: 1987 Trans Am
Engine: LQ9/L92
Transmission: 4L60E
Thread Starter
Senior Member
iTrader: (5)
Joined: Dec 2008
Posts: 719
Likes: 0
From: Alabama
Car: 1986 camaro
Engine: ls2
Transmission: FLT stage 6 60e
Axle/Gears: 8.8 with 3.73's
Re: make your own 4" maf
The ls7 sensor does have an internal iat sensor.. But id relocate say a stock ls1 sensor into the start of your cai to avoid the aluminum heat soaking the sensor and giving a false iat reading
Supreme Member
iTrader: (7)
Joined: Jun 2008
Posts: 1,468
Likes: 0
From: Minnesota
Car: 89 IROC-Z
Engine: 370 LSX, LS3 Top End
Transmission: Built T-56
Axle/Gears: 9" Aluminum Center 3.89's
Re: make your own 4" maf
Does the ls7 maf have the same plug/wire configuration as the 5 wire truck mafs?
Senior Member
iTrader: (8)
Joined: Mar 2008
Posts: 655
Likes: 2
From: NH
Car: 1967 Firebird P.T.
Engine: LS3 4" Strkr 422ci
Transmission: MN12 6 speed
Axle/Gears: 3.73 8.5" 10 Bolt Eaton
Re: make your own 4" maf
thats a cool mod, i myself am figuring out my air intake dilemma right now, im trying to run a RAII hood with matching box made for it and i cant seem to find something that works right. i saw the blueish vert bird that guy made using a whisper lid, fiberglass etc etc but i havent worked with fiberrglass yet. im starting to look through my yard for other types of OEM airboxes, gm, euro and japanese to find something. frustrating.
Thread Starter
Senior Member
iTrader: (5)
Joined: Dec 2008
Posts: 719
Likes: 0
From: Alabama
Car: 1986 camaro
Engine: ls2
Transmission: FLT stage 6 60e
Axle/Gears: 8.8 with 3.73's
Re: make your own 4" maf
I myself didnt like the polished look so I painted mine black.
TGO Supporter
iTrader: (2)
Joined: Jul 1999
Posts: 13,579
Likes: 9
From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
Re: make your own 4" maf
For anybody that does this, just be advised that without a tune from a shop that's got the talent to build a custom MAF table, chances are your performance will suffer drastically. It's not likely that a shop will just be able to copy an LS7 table due to the different air path in this configuration, but at least that might get you into the ball park. Either way, running this setup with your existing tune is not likely to provide the best results.
Thread Starter
Senior Member
iTrader: (5)
Joined: Dec 2008
Posts: 719
Likes: 0
From: Alabama
Car: 1986 camaro
Engine: ls2
Transmission: FLT stage 6 60e
Axle/Gears: 8.8 with 3.73's
Re: make your own 4" maf
For anybody that does this, just be advised that without a tune from a shop that's got the talent to build a custom MAF table, chances are your performance will suffer drastically. It's not likely that a shop will just be able to copy an LS7 table due to the different air path in this configuration, but at least that might get you into the ball park. Either way, running this setup with your existing tune is not likely to provide the best results.
TGO Supporter
iTrader: (2)
Joined: Jul 1999
Posts: 13,579
Likes: 9
From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
Supreme Member
Joined: Mar 2004
Posts: 2,519
Likes: 4
From: In the Garage
Car: Camaro
Engine: 6.2L
Transmission: T56
Re: make your own 4" maf
Just thought Id add in some GM part numbers. I ordered mine through GM Parts direct and Ive added the PN's and the ( as of today ) price below. I went for this instead as I dont want so many couplers in my system I am only after the bung and will weld it into the pipe itself so I'll only have the silicone elbow from the TB around to the piping then filter. Nice and neat
Bung: PN 19166574 and it runs $9.27
LS7 MAF PN: 15865791 and its $55.52
Bung: PN 19166574 and it runs $9.27
LS7 MAF PN: 15865791 and its $55.52
Supreme Member
iTrader: (4)
Joined: Mar 2009
Posts: 3,079
Likes: 4
From: Pepperell, MA
Car: 1987 Trans Am
Engine: LQ9/L92
Transmission: 4L60E
Re: make your own 4" maf
Just thought Id add in some GM part numbers. I ordered mine through GM Parts direct and Ive added the PN's and the ( as of today ) price below. I went for this instead as I dont want so many couplers in my system I am only after the bung and will weld it into the pipe itself so I'll only have the silicone elbow from the TB around to the piping then filter. Nice and neat
Bung: PN 19166574 and it runs $9.27
LS7 MAF PN: 15865791 and its $55.52
Bung: PN 19166574 and it runs $9.27
LS7 MAF PN: 15865791 and its $55.52
not a bad price, considering I paid around $60 for a used truck MAF (85mm) and the stock LS1 fbody ones seem to go for over $100 on ebay
Senior Member
iTrader: (8)
Joined: Mar 2008
Posts: 655
Likes: 2
From: NH
Car: 1967 Firebird P.T.
Engine: LS3 4" Strkr 422ci
Transmission: MN12 6 speed
Axle/Gears: 3.73 8.5" 10 Bolt Eaton
Supreme Member
iTrader: (4)
Joined: Mar 2009
Posts: 3,079
Likes: 4
From: Pepperell, MA
Car: 1987 Trans Am
Engine: LQ9/L92
Transmission: 4L60E
Re: make your own 4" maf
hey man I have a question about your maf sensor. Your saying this will work on a 86 camaro and which pigtail did you buy. I just built a 350 too motor for my car and have a custom tune and I feel like my stock maf sensor is holding my motor back and wanna upgrade it
Thread
Thread Starter
Forum
Replies
Last Post










