14" open air airfilter, type thin?
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Car: Pontiac TransAm -84
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14" open air airfilter, type thin?
I have an 14" aftermarket open air airfilter with drop base (ca 1/2"). Heigth is 2". I think 2" is too little, and will raise it to hood limit (Performer Rpm manifold)
2,5" heigth is ok (max 3") and I found airfilter from Fram CA 342 and Purolator A 60102. But they are too thick. They dont fit inside airfilter-housin They are O.D. minus I.D. (13,91" minus 11.63") = 2,28" thick.
Because of the drop base, airfilter-thickness would be max 1,3". Where can I find this? Someone that knew the partnumber?
Since I live in Europe I have to try the most know trademarks like Fram, Purolator, AC Delco.......
2,5" heigth is ok (max 3") and I found airfilter from Fram CA 342 and Purolator A 60102. But they are too thick. They dont fit inside airfilter-housin They are O.D. minus I.D. (13,91" minus 11.63") = 2,28" thick.
Because of the drop base, airfilter-thickness would be max 1,3". Where can I find this? Someone that knew the partnumber?
Since I live in Europe I have to try the most know trademarks like Fram, Purolator, AC Delco.......
#2
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Let me guess..... the ID of the filter kinda "rides up" the drop base angle a little and the filter won't drop all the way into the base, right? I just kinda "forced" mine a little (Purolator). It was annoying to me too, but it works just fine.
A K&N air filter will fit much better- they're just spec'ed a little different and they usually fit typical open element housings better than typical paper replacement filters. They make them in increments of 1/4" in height. I would never use anything smaller than a 2-1/2" filter in a drop-base air cleaner.
A K&N air filter will fit much better- they're just spec'ed a little different and they usually fit typical open element housings better than typical paper replacement filters. They make them in increments of 1/4" in height. I would never use anything smaller than a 2-1/2" filter in a drop-base air cleaner.
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Car: Pontiac TransAm -84
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Originally posted by Damon
Let me guess..... the ID of the filter kinda "rides up" the drop base angle a little and the filter won't drop all the way into the base, right? I just kinda "forced" mine a little (Purolator). It was annoying to me too, but it works just fine.
A K&N air filter will fit much better- they're just spec'ed a little different and they usually fit typical open element housings better than typical paper replacement filters. They make them in increments of 1/4" in height. I would never use anything smaller than a 2-1/2" filter in a drop-base air cleaner.
Let me guess..... the ID of the filter kinda "rides up" the drop base angle a little and the filter won't drop all the way into the base, right? I just kinda "forced" mine a little (Purolator). It was annoying to me too, but it works just fine.
A K&N air filter will fit much better- they're just spec'ed a little different and they usually fit typical open element housings better than typical paper replacement filters. They make them in increments of 1/4" in height. I would never use anything smaller than a 2-1/2" filter in a drop-base air cleaner.
The 2"- filter I have today is totally unmarked, so anyway it is impossible to find an identical filter.
What Purolator filter did you try (partnr.)?
At www.knfilter.com I found a KN-filter that fits perfekt. Partnr is E 3735. They are expensive (120$) and is a longtime-order.
So isnt there any other firm that manufacture a proper filter??
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Heres my 14x3 drop base air cleaner. Fits fine under the stock hood, and its got a Holley and a hi-rise intake under it.
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Car: Pontiac TransAm -84
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Originally posted by Air_Adam
Heres my 14x3 drop base air cleaner. Fits fine under the stock hood, and its got a Holley and a hi-rise intake under it.
Heres my 14x3 drop base air cleaner. Fits fine under the stock hood, and its got a Holley and a hi-rise intake under it.
www.summitracing.com sells that filter for only 8,95$. But shipping/handling fell/toll make it to 100$ to me
I will try to see if a dealer in Norway have that filter...
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Car: Pontiac TransAm -84
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Air_Adam:
You have a Camaro...? Dont they have a higher hood than mine Firebird? Perhaps 3" is too high filter?
You have a Camaro...? Dont they have a higher hood than mine Firebird? Perhaps 3" is too high filter?
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I do have a Camaro, and I think you are right, the Camaro hood is a bit taller than the Firebird hood.
The air cleaner is a drop-base, prolly about 1" or so. The filter is just whatever came with it when I bought it.
The air cleaner is a drop-base, prolly about 1" or so. The filter is just whatever came with it when I bought it.
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Car: 1987 Camaro SC, 1999 Z28
Engine: GMPP 350HO, LS1
Transmission: Built 700r4/EDGE 3200, T56
Axle/Gears: 3.42 Eaton 7.625, 3.42 Zexel Torsen
I'm running the same exact thing as air adam... high rise intake and that edelbrock drop base. mine fits too...camaro of course
later,
brandon
later,
brandon
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Car: '89 RS
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Transmission: TH 700-R4
I currently have an edelbrock RPM manifold and when i did my 305 to 350 swap, I used a 14x3 drop base. If you get level with the car, it looked like it wasnt gonna even be close to closing. I had to take the insulator off the top of the hood, but it shuts fine now...
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Car: Pontiac TransAm -84
Engine: 305
Transmission: TH700R4
Originally posted by meeklay812
I currently have an edelbrock RPM manifold and when i did my 305 to 350 swap, I used a 14x3 drop base. If you get level with the car, it looked like it wasnt gonna even be close to closing. I had to take the insulator off the top of the hood, but it shuts fine now...
I currently have an edelbrock RPM manifold and when i did my 305 to 350 swap, I used a 14x3 drop base. If you get level with the car, it looked like it wasnt gonna even be close to closing. I had to take the insulator off the top of the hood, but it shuts fine now...
But what about my -84 Firebird when it comes to clearance under the hood? Does a 3" airfilter fit under it? It is difficult to decide when looking thru the airoutlet at the hood.
I have:
Performance Rpm intake.
Dropbase aircleaner housing (how much dropbase do you have if it fits under your hood?)
No insulation under the hood (Another question: Is insulation standard? There was nothing insulation on my car when I bougth it used)
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Car: '89 RS
Engine: 383 in progress
Transmission: TH 700-R4
Can't help ya with the fitting under the Trans am hood, hope all goes well for ya... I know it caused me some stress
As far as my drop base, mine was the edelbrock pro-flow part number 1207...
350-1207
14'' Diameter, with 3'' Tall Element
Edelbrock triple chrome-plated round air cleaners work with all popular 5-1/8'' diameter carburetors (Performer Series, Holley, Thermoquad, Quadrajet and Carter AFB). Has knock-outs in the air cleaner base and include an adapter for crankcase ventilation. #350-1207 fits Edelbrock, electric choke and Q-Jet carbs with spacer #350-8092 and fits Edelbrock manual choke carbs with banjo fitting #350-8089. Height of air cleaner is 3-5/16'' to the top of the supplied retaining nut.
I dunno if that helps, good luck!!
As far as my drop base, mine was the edelbrock pro-flow part number 1207...
350-1207
14'' Diameter, with 3'' Tall Element
Edelbrock triple chrome-plated round air cleaners work with all popular 5-1/8'' diameter carburetors (Performer Series, Holley, Thermoquad, Quadrajet and Carter AFB). Has knock-outs in the air cleaner base and include an adapter for crankcase ventilation. #350-1207 fits Edelbrock, electric choke and Q-Jet carbs with spacer #350-8092 and fits Edelbrock manual choke carbs with banjo fitting #350-8089. Height of air cleaner is 3-5/16'' to the top of the supplied retaining nut.
I dunno if that helps, good luck!!
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Car: 1987 Trans Am
Engine: LG4 305 w/emissions & A/C delete
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Axle/Gears: it's crap...they're stock!
Re: T/A hood clearance...
...I've got a 10x2 drop on filter on my stock 87 T/A with an LG4 305, and very unfortunately, the owner before me had to cut out a circle on the underhood fabric so that the hood would close. I've tried getting a 3inch filter on there, but lets just say that thats not happening anytime soon!
-G
-G
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Car: 1989 Trans Am
Engine: 1989 305 TPI
Transmission: 700-R4
Axle/Gears: 2.77 10 bolt
Originally posted by 305TransAm-84
Ok. So its fits Camaros.
But what about my -84 Firebird when it comes to clearance under the hood? Does a 3" airfilter fit under it? It is difficult to decide when looking thru the airoutlet at the hood.
I have:
Performance Rpm intake.
Dropbase aircleaner housing (how much dropbase do you have if it fits under your hood?)
No insulation under the hood (Another question: Is insulation standard? There was nothing insulation on my car when I bougth it used)
Ok. So its fits Camaros.
But what about my -84 Firebird when it comes to clearance under the hood? Does a 3" airfilter fit under it? It is difficult to decide when looking thru the airoutlet at the hood.
I have:
Performance Rpm intake.
Dropbase aircleaner housing (how much dropbase do you have if it fits under your hood?)
No insulation under the hood (Another question: Is insulation standard? There was nothing insulation on my car when I bougth it used)
However, a flat Firebird bonnet does have problems, it crushes the front of the air filter a little bit.
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Car: Pontiac TransAm -84
Engine: 305
Transmission: TH700R4
Ahhh....I finally recieved the 14x3 openair-filter I ordered. And I mounted it.
But the hood didnt close It hit the filter at the front just when the clearance at the front of the hood was 1,5-2 inches. Pitty.
I have no insulation under the hood. I can see that if I cut away some of the steel-arm under the hood, it will fit. Cutting steel areal will be about 3"quad.
Can you recommend that? Will it make any problems? Stiffness in hood will still be OK?
But the hood didnt close It hit the filter at the front just when the clearance at the front of the hood was 1,5-2 inches. Pitty.
I have no insulation under the hood. I can see that if I cut away some of the steel-arm under the hood, it will fit. Cutting steel areal will be about 3"quad.
Can you recommend that? Will it make any problems? Stiffness in hood will still be OK?
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Car: 86\92 Mutant
Engine: 355CI 430HP
Transmission: T-5 with mods
Axle/Gears: 7.625", Eaton Posi, 3.73
You need to run a minimum of a 3" air cleaner on a drop base filter, no if ands or buts. 4" is better. 4.5" or 5" is best.
Your choices are:
1: Install a Hood Scoop or glass hood with scoop. Best choice IMHO
2: Remove intake manifold and mill 1" off of manifold. Performer RPM's have enough material on them to do this. Have machine shop check manifold though to be sure. Mill enough off so that you can fit a minimum of a 1\4" phenolic spacer ( 4 hole ) under the carb to isolate heat. 1\2 spacer better if you have room.
BTW, Moroso unit has best top design for low air horn clearnace issues.
Your choices are:
1: Install a Hood Scoop or glass hood with scoop. Best choice IMHO
2: Remove intake manifold and mill 1" off of manifold. Performer RPM's have enough material on them to do this. Have machine shop check manifold though to be sure. Mill enough off so that you can fit a minimum of a 1\4" phenolic spacer ( 4 hole ) under the carb to isolate heat. 1\2 spacer better if you have room.
BTW, Moroso unit has best top design for low air horn clearnace issues.
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Car: Pontiac TransAm -84
Engine: 305
Transmission: TH700R4
Originally posted by Chickenman35
You need to run a minimum of a 3" air cleaner on a drop base filter, no if ands or buts. 4" is better. 4.5" or 5" is best.
Yes, I know. Thats why I would throw out my 2" airfilter. It was maybe OK with my former Holley carb, where the airhorn/choke was cut off.
Your choices are:
1: Install a Hood Scoop or glass hood with scoop. Best choice IMHO
That could be a problem. Traffical govern in Norway dont allow "something high" up from the hood.
2: Remove intake manifold and mill 1" off of manifold. Performer RPM's have enough material on them to do this. Have machine shop check manifold though to be sure. Mill enough off so that you can fit a minimum of a 1\4" phenolic spacer ( 4 hole ) under the carb to isolate heat. 1\2 spacer better if you have room.
One of the diff between RPM and non-RPM manifold is the high plenum of RPM. I will reluctantly cut this heigth. It will affect the power, so it will be wasted to change to 3" airfilter....
BTW, Moroso unit has best top design for low air horn clearnace issues.
You need to run a minimum of a 3" air cleaner on a drop base filter, no if ands or buts. 4" is better. 4.5" or 5" is best.
Yes, I know. Thats why I would throw out my 2" airfilter. It was maybe OK with my former Holley carb, where the airhorn/choke was cut off.
Your choices are:
1: Install a Hood Scoop or glass hood with scoop. Best choice IMHO
That could be a problem. Traffical govern in Norway dont allow "something high" up from the hood.
2: Remove intake manifold and mill 1" off of manifold. Performer RPM's have enough material on them to do this. Have machine shop check manifold though to be sure. Mill enough off so that you can fit a minimum of a 1\4" phenolic spacer ( 4 hole ) under the carb to isolate heat. 1\2 spacer better if you have room.
One of the diff between RPM and non-RPM manifold is the high plenum of RPM. I will reluctantly cut this heigth. It will affect the power, so it will be wasted to change to 3" airfilter....
BTW, Moroso unit has best top design for low air horn clearnace issues.
So, is it recommendable to cut with steel-scissor in the armour-plate/arm at the underside of the hood....? I know it is a backyard-solution, but no one can see it . And it is the cheapest..
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Car: 86\92 Mutant
Engine: 355CI 430HP
Transmission: T-5 with mods
Axle/Gears: 7.625", Eaton Posi, 3.73
Originally posted by 305TransAm-84
So, is it recommendable to cut with steel-scissor in the armour-plate/arm at the underside of the hood....? I know it is a backyard-solution, but no one can see it . And it is the cheapest..
So, is it recommendable to cut with steel-scissor in the armour-plate/arm at the underside of the hood....? I know it is a backyard-solution, but no one can see it . And it is the cheapest..
Alternate method would be to remove the hood, buy or rent an air cutoff tool and remove ONLY the sections that actually hit the air cleaner. Forget about the steel scissors or Tin Snips. Ain't gona cut the " mustard " so to speak. Try and leave as much of the strengthening ribs as possible.
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Car: Camaro
Engine: 6.2L
Transmission: T56
You need to run a minimum of a 3" air cleaner on a drop base filter, no if ands or buts. 4" is better. 4.5" or 5" is best.
Your choices are:
1: Install a Hood Scoop or glass hood with scoop. Best choice IMHO
2: Remove intake manifold and mill 1" off of manifold. Performer RPM's have enough material on them to do this. Have machine shop check manifold though to be sure. Mill enough off so that you can fit a minimum of a 1\4" phenolic spacer ( 4 hole ) under the carb to isolate heat. 1\2 spacer better if you have room.
BTW, Moroso unit has best top design for low air horn clearnace issues.
Your choices are:
1: Install a Hood Scoop or glass hood with scoop. Best choice IMHO
2: Remove intake manifold and mill 1" off of manifold. Performer RPM's have enough material on them to do this. Have machine shop check manifold though to be sure. Mill enough off so that you can fit a minimum of a 1\4" phenolic spacer ( 4 hole ) under the carb to isolate heat. 1\2 spacer better if you have room.
BTW, Moroso unit has best top design for low air horn clearnace issues.
Interesting. Do you know if there is much horsepower loss with milling the RPM intake down?
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Car: 86\92 Mutant
Engine: 355CI 430HP
Transmission: T-5 with mods
Axle/Gears: 7.625", Eaton Posi, 3.73
Originally posted by 87roc_t56
Interesting. Do you know if there is much horsepower loss with milling the RPM intake down?
Interesting. Do you know if there is much horsepower loss with milling the RPM intake down?
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Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
first off, the most common 14" element height you see is 3".
heres another option..
get a drop base and a 3" element.
then, try to close the hood... the forward part is probly where its going to hit.
the top and bottom of the filter housing is just sheetmetal..
bend it (equally on both peices) so it clears...
the filter is just rubber seals, and steel mesh supporting paper.
with the housing bent slightly, you can tighten it to form into the proper shape.
between that and removal of the padding under the hood, it clears.
heres another option..
get a drop base and a 3" element.
then, try to close the hood... the forward part is probly where its going to hit.
the top and bottom of the filter housing is just sheetmetal..
bend it (equally on both peices) so it clears...
the filter is just rubber seals, and steel mesh supporting paper.
with the housing bent slightly, you can tighten it to form into the proper shape.
between that and removal of the padding under the hood, it clears.
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Car: 86\92 Mutant
Engine: 355CI 430HP
Transmission: T-5 with mods
Axle/Gears: 7.625", Eaton Posi, 3.73
Originally posted by MrDude_1
first off, the most common 14" element height you see is 3".
heres another option..
get a drop base and a 3" element.
then, try to close the hood... the forward part is probly where its going to hit.
the top and bottom of the filter housing is just sheetmetal..
bend it (equally on both peices) so it clears...
the filter is just rubber seals, and steel mesh supporting paper.
with the housing bent slightly, you can tighten it to form into the proper shape.
between that and removal of the padding under the hood, it clears.
first off, the most common 14" element height you see is 3".
heres another option..
get a drop base and a 3" element.
then, try to close the hood... the forward part is probly where its going to hit.
the top and bottom of the filter housing is just sheetmetal..
bend it (equally on both peices) so it clears...
the filter is just rubber seals, and steel mesh supporting paper.
with the housing bent slightly, you can tighten it to form into the proper shape.
between that and removal of the padding under the hood, it clears.
#22
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Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Originally posted by Chickenman35
Dude...read all his posts. He's done all that and he's got a Trans-Am. They have less hood clearance than a Camaro. And he doesn't want to bend the Air Cleaner ( Don't blame him )...would probably require much more of a bend than Camaro.
Dude...read all his posts. He's done all that and he's got a Trans-Am. They have less hood clearance than a Camaro. And he doesn't want to bend the Air Cleaner ( Don't blame him )...would probably require much more of a bend than Camaro.
if he doesnt want to bend the air cleaner, i can understand.... the only ones ive done that to were cheapie MrGasket "Daytona" ones.... but it works.. its a option so its out there.
#23
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Car: Pontiac TransAm -84
Engine: 305
Transmission: TH700R4
Hi guys!
Sorry for long time -no see.
I have cut a bit of the underhood steel-arms/reinforcement with a steelscissor.
The hood close fine now Some fineadjustments and clearance-checking will be done soon.
It was only about 3"quad I had to cut away. To me it looks like that was the best, easiest and lowcost solution.
Sorry for long time -no see.
I have cut a bit of the underhood steel-arms/reinforcement with a steelscissor.
The hood close fine now Some fineadjustments and clearance-checking will be done soon.
It was only about 3"quad I had to cut away. To me it looks like that was the best, easiest and lowcost solution.
#24
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If you want to use a Performer Rpm manifold under the stock hood of a Fbody you have to use the right air cleaner
allows a 14x3" element with room to spare.
Search my posts, its all there. keyword: L-88
Need to do a sticky on this as it always seems to come up.
This is my firebird with a GM L-88/L72 14x 3" air flilter.
Fits holley, edelbrock and rochester with a few mods.
allows a 14x3" element with room to spare.
Search my posts, its all there. keyword: L-88
Need to do a sticky on this as it always seems to come up.
This is my firebird with a GM L-88/L72 14x 3" air flilter.
Fits holley, edelbrock and rochester with a few mods.
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