air cleaner through the hood?
#1
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Car: 1986/88 Frankenstein Trans Am
Engine: carbed L98
Transmission: T-5
air cleaner through the hood?
can i cut a hole in my hood so i can fit a 14x3 air filter? right now i have an edelbrock performer intake with a holley carb and a 9" filter and its definatly restricting my air flow and i highly doubt a 3" air cleaner will fit under my stock hood. i remember seeing someone with a hole cut in their hood but i cant remember who it was.
will i experience any problems with rain and such? this is a temporary solution for a few months until i get a cowl hood so it will not be permament...
will i experience any problems with rain and such? this is a temporary solution for a few months until i get a cowl hood so it will not be permament...
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Car: 1984 Trans Am WS6
Transmission: 700r4 Highly Modified
Why don't you just upgrade to a K&N 2' and get a K&N filter lid for it? Then you will have a lot more flow when you need it.
#4
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You don't need to cut a hole in the hood and
a 14 x3" Old 60's GM air cleaner will fit with room to spare if you get the right one. All the aftermarket ones are taller.
Search my old posts for "L-88" its all there.
Here is the thread
Here is where you can get one
a 14 x3" Old 60's GM air cleaner will fit with room to spare if you get the right one. All the aftermarket ones are taller.
Search my old posts for "L-88" its all there.
Here is the thread
Here is where you can get one
Last edited by F-BIRD'88; 04-06-2004 at 12:54 PM.
#5
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Originally posted by TA5LiterHO
Why don't you just upgrade to a K&N 2' and get a K&N filter lid for it? Then you will have a lot more flow when you need it.
Why don't you just upgrade to a K&N 2' and get a K&N filter lid for it? Then you will have a lot more flow when you need it.
Open elements have the undesireable effect of pulling engine-heated air into the engine. Either go cool-air ducted dual snorkel, or sealed cowl.
#6
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Car: 1986/88 Frankenstein Trans Am
Engine: carbed L98
Transmission: T-5
hmmm ok. well then, does ascd's hoods come with their cowl sealed? i hate the look of dual snorkel...
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#9
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Car: 1986/88 Frankenstein Trans Am
Engine: carbed L98
Transmission: T-5
ok im confused now...ive seen some cowl hoods that have a hole cut out for the carb
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Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Right, but it's not going to do much unless you have an airbox around the air cleaner that seals against the hood so that you're only drawing air from the cowl, not from around the engine.
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
There are a couple here https://www.thirdgen.org/techbb2/sho...hreadid=183568 with pictures of the hole in the hood & cowl above. However, they aren't sealed.
For the seal, imagine the open element base extended out a few inches. Around the air cleaner attached to this extension is foam. When the hood is closed, the hood sits on the foam, the air cleaner sticks through the hole into the cowl space, so all the air comes from the cowl.
For the seal, imagine the open element base extended out a few inches. Around the air cleaner attached to this extension is foam. When the hood is closed, the hood sits on the foam, the air cleaner sticks through the hole into the cowl space, so all the air comes from the cowl.
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Car: 2002 Formula Firebird
Engine: LS1
Transmission: 4l60e
Axle/Gears: 3.23
I'm running an open element on mine with a 3'' cervini cowl. It helped. I am still thinking about getting a ram air box from www.ramairbox.com would get the air in well i think.
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Car: 1986/88 Frankenstein Trans Am
Engine: carbed L98
Transmission: T-5
what about Jeg's 14'' Performance Chrome Air Cleaners - 14'' x 2'', 5-1/8'' Centered Base; Height from mounting flange: 2.18''
anyone know what the max 'height from mounting flange' i can have with my stock hood?
anyone know what the max 'height from mounting flange' i can have with my stock hood?
Last edited by Trans_AM_88; 04-11-2004 at 11:54 PM.
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Car: 86\92 Mutant
Engine: 355CI 430HP
Transmission: T-5 with mods
Axle/Gears: 7.625", Eaton Posi, 3.73
Remove the hood insulator and buy a Moroso drop base 14" air cleaner. This combo will fit under the stock hood with no cutting with a Performer intake and a Holley Carb. You'll even have room for a 1\4" or 5\16" phenolic spacer...which I would advise you to run.
Moroso has one of the largest base drops of any air cleaners on the market.
Moroso has one of the largest base drops of any air cleaners on the market.
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Car: 86\92 Mutant
Engine: 355CI 430HP
Transmission: T-5 with mods
Axle/Gears: 7.625", Eaton Posi, 3.73
Here is a picture of my Air Box that is sealed to hood scoop. Not pretty, but it works very well.
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Car: 2002 Formula Firebird
Engine: LS1
Transmission: 4l60e
Axle/Gears: 3.23
I ran a holley street dominator intake, a 670cfm holley street avenger, and a 14x3 k&n dropbase element under my stock hood. It hit alittle but it fit. The intake is almost 2'' taller than stock and that combo still fit.
#20
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Car: 1986/88 Frankenstein Trans Am
Engine: carbed L98
Transmission: T-5
ok i just ordered the k&n 14x3 air cleaner with a 1 1/4" drop base. i hope it fits
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Car: 1986/88 Frankenstein Trans Am
Engine: carbed L98
Transmission: T-5
Originally posted by 88Camaro350
That should fit fine. If mine fit yours should too.
That should fit fine. If mine fit yours should too.
the drop base hits the carb. i think that 60's style drop base will too. what can i do guys? am i stuck with having to get a cowl hood?
it's a 4779 holley carb
Last edited by Trans_AM_88; 04-15-2004 at 06:39 PM.
#23
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Originally posted by Trans_AM_88
nope, it doesnt fit
http://www.vzwpix.com/mlib/GetImage?part=0;107247.jpeg
the drop base hits the carb. i think that 60's style drop base will too. what can i do guys? am i stuck with having to get a cowl hood?
it's a 4779 holley carb
nope, it doesnt fit
http://www.vzwpix.com/mlib/GetImage?part=0;107247.jpeg
the drop base hits the carb. i think that 60's style drop base will too. what can i do guys? am i stuck with having to get a cowl hood?
it's a 4779 holley carb
Where on the carb does the K&N base hit?
The old GM L-88/Z28 base will fit the holley 4779 but you'll have to remove the choke flap and choke linkage and shorten or remove the choke air horn and shorten the vent tubes. Cut them shorter and on a 45deg angle.
It will hit the HEI distributor cap ( the old factory point cap was smaller). Trimming the back of the base will solve this issue.
Use a 14x3" filter element and a normal common chrome lid.
The carb in the pic is an old 60's OEM factory 780 VS ( ford) which had a shorter choke horn. The 4779 choke horn is taller.
#24
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Car: 1986/88 Frankenstein Trans Am
Engine: carbed L98
Transmission: T-5
fixed the pic...
yeah the drop base hits the fuel bowl assembly (where those 2 big nuts are)
you said i have to remove the choke linkage and the choke flap? so that means i wont have a choke?
yeah the drop base hits the fuel bowl assembly (where those 2 big nuts are)
you said i have to remove the choke linkage and the choke flap? so that means i wont have a choke?
#25
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Originally posted by Trans_AM_88
fixed the pic...
yeah the drop base hits the fuel bowl assembly (where those 2 big nuts are)
you said i have to remove the choke linkage and the choke flap? so that means i wont have a choke?
fixed the pic...
yeah the drop base hits the fuel bowl assembly (where those 2 big nuts are)
you said i have to remove the choke linkage and the choke flap? so that means i wont have a choke?
The carb will work better with the choke horn removed
because the lid sits closer to the top of the carb with the GM base. it was designed for the 1967-70 corvette with a big block. The carb on those engines had downleg boosters which allowed a lower choke horn and choke plate with more clearance between the choke horn and air clearner lid. Your 4779 has straight leg boosters and a higher choke horn. So yes you may have to remove the choke.
Try an edelbrock plastic 1/2" carb flange spacer ring.
Last edited by F-BIRD'88; 04-15-2004 at 07:04 PM.
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Car: 86\92 Mutant
Engine: 355CI 430HP
Transmission: T-5 with mods
Axle/Gears: 7.625", Eaton Posi, 3.73
The Moroso drop base filter has two bulges to clear the float bowl adjusting nuts. Return the K&N unit and buy a Moroso Part#65910 for Chrome Plated steel. This will fit.
K&N should have fitted...suppossed to have notches to clear float screws. What Part# did you buy in K&N?
K&N should have fitted...suppossed to have notches to clear float screws. What Part# did you buy in K&N?
#27
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Car: 1986/88 Frankenstein Trans Am
Engine: carbed L98
Transmission: T-5
this is what i got
Item# = 599-60-1280
Description = K&N Air Cleaners
Neck: 5-1/8'' Element Height: 3''
Item# = 599-60-1280
Description = K&N Air Cleaners
Neck: 5-1/8'' Element Height: 3''
Last edited by Trans_AM_88; 04-17-2004 at 11:47 AM.
#28
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Car: 1986/88 Frankenstein Trans Am
Engine: carbed L98
Transmission: T-5
F-BIRD'88: do you mean like this? this is all i have to do?
http://www.mustangcentral.net/tech/choke.html
http://www.mustangcentral.net/tech/choke.html
#29
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Car: 1986/88 Frankenstein Trans Am
Engine: carbed L98
Transmission: T-5
well after some rearranging of my spark plug wires and boots and a little bit of elbow grease, i actually got the k&n air cleaner to fit
so; a 14 x 3" drop base k&n air cleaner WILL fit an edelbrock performer intake with a holley carb (mine is a 4779) and HEI ignition. thanks for the help guys
so; a 14 x 3" drop base k&n air cleaner WILL fit an edelbrock performer intake with a holley carb (mine is a 4779) and HEI ignition. thanks for the help guys
#30
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Originally posted by Trans_AM_88
F-BIRD'88: do you mean like this? this is all i have to do?
http://www.mustangcentral.net/tech/choke.html
F-BIRD'88: do you mean like this? this is all i have to do?
http://www.mustangcentral.net/tech/choke.html
basicly,,,,, yes
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