Free HP for L03s
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Junior Member
Joined: May 2002
Posts: 61
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From: Courtenay, B.C.
Car: 91 RS
Engine: 350 TBI
Transmission: 5 speed
Free HP for L03s
I've seen a bunch of threads and websites telling us to buy 14x3 open element air cleaners, or how to turn our current set up into ram air. But here is the simplest way to get more air. You don't have to remove the air silencer ring, or get rid of the thermac device. Instead of buying a Fram CA326 air filter (or it's equivalent) buy the Fram CA327 (I believe it's for TBI trucks) then put your air cleaner lid on upside down. That's it. Same stud, same wingnut, it should all work. If you want you could go put a K&N or Proshot filter in, but I'm getting more than enough air to my TBI 350 (my 305's long gone) with just the Fram filter and this setup.
Supreme Member
Joined: Mar 2001
Posts: 1,818
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From: Dixon, IL
Car: RS
Engine: 305
Transmission: 4L60
Axle/Gears: 3.42
I tried that when I first bought the car, the lid (upside down) wasn't even tight, plus the way the lid is, it does basically nothing for performance, I recommend to just get the open element and be done with it
Well in my opinion its just looks gay sorry it does we laugh at my cousin so hard he put his air lid on right if your gonna do it do it right and make it look good
an eldebrock 14x3 open air filter is $33 for autozone come on:lala:
an eldebrock 14x3 open air filter is $33 for autozone come on:lala:
Senior Member
iTrader: (5)
Joined: Sep 1999
Posts: 662
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From: Kansas City, MO
Car: 83 Z28
Engine: 406
Transmission: T56
Axle/Gears: 9" with 4.10s
Funny shiznit.
I'm trying right now to see what newer TBI trucks came with and if they would work on our TB or even if you could swap out the entire TBI if it would benifit. All I think I really need is the elbow the goes over the top of the TB, then run 3.5" pipe threw the battery tray and stick a K&N filter on the end of it. I did something similar to my TPI bird. You could here the air howling in esp on cold morninings when you first start it. One guy got a scope from a ram air mustang kit and put it on his. It looked tight.
I also want to use my TPI triangular strut tower bace, and that ain't happening with anything larger than a 8" filter. And K&N does not make a filtered top cover that big.
I'm trying right now to see what newer TBI trucks came with and if they would work on our TB or even if you could swap out the entire TBI if it would benifit. All I think I really need is the elbow the goes over the top of the TB, then run 3.5" pipe threw the battery tray and stick a K&N filter on the end of it. I did something similar to my TPI bird. You could here the air howling in esp on cold morninings when you first start it. One guy got a scope from a ram air mustang kit and put it on his. It looked tight.
I also want to use my TPI triangular strut tower bace, and that ain't happening with anything larger than a 8" filter. And K&N does not make a filtered top cover that big.
Thread Starter
Junior Member
Joined: May 2002
Posts: 61
Likes: 0
From: Courtenay, B.C.
Car: 91 RS
Engine: 350 TBI
Transmission: 5 speed
Originally posted by vicV8rs91
I tried that when I first bought the car, the lid (upside down) wasn't even tight
I tried that when I first bought the car, the lid (upside down) wasn't even tight
By leaving the old air assembly in place, wouldn't it act as a heat shield, getting you colder air?
Member
Joined: Oct 2001
Posts: 496
Likes: 0
From: Appleton, WI. 54914
Car: 91 Firebird
Engine: L03
Transmission: Auto
dex.... is that a sentance man? Hey the lid thing is a good idea if you are on a tight budget. It works fine, gives it a little bit of a different sound too when its sucking up the air. I'd still just do the open element though.
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Supreme Member
Joined: Apr 2001
Posts: 4,969
Likes: 0
From: USA
Car: yy wife, crazy.
Engine: 350, Vortecs, 650DP
Transmission: TH-350
Axle/Gears: 8.5", 3.42
Originally posted by wasp
thats for people on welfare:sillylol:
thats for people on welfare:sillylol:
I have a $125,000 house that I only owe ~$75K on and I've only had it 2 yrs. I wouldn't say I'm on welfare.
It's called ingenuity. Granted I have a K&N filter, but it didn't cost 1 penny more for the truck filter than it would have for the #1450. And I don't have to worry about finger prints.
And it IS an open element. I'm one to go for all go and no show, but that's just me. I really only want my tail lights looking good, for obvious reasons.

BTW, a guy on here did that with a paper filter on a chassis dyno and picked up 6 little ponies. I'd say it'd be a little more if it was a K&N.
AJ
Originally posted by AJ_92RS
BTW, a guy on here did that with a paper filter on a chassis dyno and picked up 6 little ponies. I'd say it'd be a little more if it was a K&N.
AJ
BTW, a guy on here did that with a paper filter on a chassis dyno and picked up 6 little ponies. I'd say it'd be a little more if it was a K&N.
AJ
PS - I use the K&N myself, because it's still a darn good filter.
Senior Member
Joined: Mar 2001
Posts: 849
Likes: 2
From: MA
Car: 93 GM300 platforms
Engine: LO3, LO5
Transmission: MD8 x2
Originally posted by graebz28
...
I'm trying right now to see what newer TBI trucks came with and if they would work on our TB or even if you could swap out the entire TBI if it would benifit. All I think I really need is the elbow the goes over the top of the TB, then run 3.5" pipe threw the battery tray and stick a K&N filter on the end of it. ...
...
I'm trying right now to see what newer TBI trucks came with and if they would work on our TB or even if you could swap out the entire TBI if it would benifit. All I think I really need is the elbow the goes over the top of the TB, then run 3.5" pipe threw the battery tray and stick a K&N filter on the end of it. ...
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