![]() |
Register or Log In To remove these advertisements. |
|
|
View Poll Results: what air filter do you have? | |||
i have the normal 2 inch or so high airfilter |
![]() ![]() ![]() ![]() |
12 | 54.55% |
i have that big thick filter that dave has never seen |
![]() ![]() ![]() ![]() |
4 | 18.18% |
you shouldnt smoke soo much crack. |
![]() ![]() ![]() ![]() |
6 | 27.27% |
Voters: 22. You may not vote on this poll |
![]() |
|
Thread Tools | Display Modes |
|
![]() |
#1 |
newly minted old timer
Join Date: Dec 1999
Location: Hudson WI
Posts: 3,511
|
air filter question
what air filter do you have? i bought a k&n air filter today, i told the parts guy what truck i had and he brings out this 4 inch filter.
i told him that ist way to tall. he told me, well then you have a 2 barrel car, or someone has messed with your truck. i laughed, and asked to see the 2 bbl one. that one was the correct size. then i started thinking that i have never seen a truck with the thick airfilter. have you all, or wtf is going on?
__________________
____________________________________________ 72 c20 longhorn 65k org miles and counting! 69 k10 Suburban Last edited by mtdave2; 02-26-2003 at 09:26 PM. |
![]() |
![]() |
![]() |
#2 |
newly minted old timer
Join Date: Dec 1999
Location: Hudson WI
Posts: 3,511
|
i guess its more like 3 inches or so on the normal size
the big one is like 5
__________________
____________________________________________ 72 c20 longhorn 65k org miles and counting! 69 k10 Suburban |
![]() |
![]() |
![]() |
#3 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
|
Dave, you shouldnt smoke so much crack!
![]() ![]() ![]()
__________________
69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
![]() |
![]() |
![]() |
#4 |
newly minted old timer
Join Date: Dec 1999
Location: Hudson WI
Posts: 3,511
|
im not sure what the mesurement is, but this is a photo of what i call a normal stock air filter. the one he handed me was almost double the hight.
__________________
____________________________________________ 72 c20 longhorn 65k org miles and counting! 69 k10 Suburban |
![]() |
![]() |
![]() |
#5 |
Registered User
Join Date: Aug 2002
Location: mass
Posts: 1,277
|
screw the big ones, buy a cheap small one and get brutally picked on for having a "small one"
|
![]() |
![]() |
![]() |
#6 |
Registered User
![]() Join Date: Jan 2001
Location: Sabinal, Texas
Posts: 1,706
|
I have the best addition to my engine bay....a MOPAR air cleaner!
![]() |
![]() |
![]() |
![]() |
#7 |
Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,720
|
All of the 67-72 trucks I have seen have something like a 2 1/2" filter, maybe even 2". The bigger ones were usually on trucks in the '80s. My 402 and both of the 350 that had factory air cleaners were same.
__________________
44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
![]() |
![]() |
![]() |
#8 |
14.1 @ 96MPH
Join Date: Jul 2001
Location: Mesa, AZ
Posts: 2,811
|
Yup, mine had a small one...
Now it's got a nice tall K&N. ![]()
__________________
Project1970 - LS1 Swap Complete! ![]() |
![]() |
![]() |
![]() |
#9 |
Account Suspended
Join Date: Sep 2000
Posts: 4,002
|
I use a 2 inch K&N with a chrome top for driving around and for shows I put the original setup back on. I notice a HUGE difference between the two while driving.
|
![]() |
![]() |
![]() |
#10 |
Registered User
Join Date: Jun 2001
Location: Springfield, MO
Posts: 1,098
|
I have the stock one as shown in the picture on my 350 then I guy gave me a K&N with Chrome breather but I have never putten it on. My concern has been from people saying that dirt can get in easier with the K&N.... not good for a guy on gravel such as myself. A buddy of mine with a 87, 1 ton, 4wd, with 454 says it has made a difference in his performance by far and he gets another MPG, maybe two.
__________________
Nick Rodenberg 72 Cheyenne 10 V8 350/TH350 white/ochre/white/ochre, ochre/saddle interior Retired and in the dry... still runs. I now drive Red '01 Ford Focus... better MPG!!! |
![]() |
![]() |
![]() |
#11 |
Registered User
Join Date: Feb 2003
Location: Bremerton, WA
Posts: 86
|
That black frisbee with the straw attached (original airbox) is what was on my BB when I got it from my grandfather.
The engine would completely cutout at about 3500 rpm due to air starvation. I replaced it with a plain 3" paper filter on an open chrome plated body and WOW what a difference in power and mpg (must be the chrome). The only think I don't like about it is the constant hiss of air through the Q-Jet...love that howl from the secondaries though. The airbox was on the 350 that originally sat in my '72. ![]()
__________________
'72 GMC C20, "2500 Super Custom", Custom Camper, New 454 '93 K2500 Suburban, Old 454 (157K) |
![]() |
![]() |
![]() |
#12 |
newly minted old timer
Join Date: Dec 1999
Location: Hudson WI
Posts: 3,511
|
anyone ever turn the metal top upside down? i used to do that with my old truck.. dont know if it gave more power..
__________________
____________________________________________ 72 c20 longhorn 65k org miles and counting! 69 k10 Suburban |
![]() |
![]() |
![]() |
#13 |
Registered User
Join Date: Feb 2003
Location: Bremerton, WA
Posts: 86
|
To everyone with the stock nozzle:
Think about the simple physics of your engine, mass flow rate in must equal mass flow rate out. The cross sectional AREA of your air intake should be somewhat equal to the area of your exhaust (fuel mass is negligible). Those factory nozzles are way too restrictive and were the result of strict emission controls, not performance engineering. UNMASK THOSE CARBS! ![]()
__________________
'72 GMC C20, "2500 Super Custom", Custom Camper, New 454 '93 K2500 Suburban, Old 454 (157K) |
![]() |
![]() |
![]() |
#14 |
newly minted old timer
Join Date: Dec 1999
Location: Hudson WI
Posts: 3,511
|
kn parts numbers.
they show 2. E-1500 4bbl e-1450 2 bbl they one they have as a 2 bbl fits in my stock 4 bbl air cleaner...something is up here here is the thick one that i have never seen on our trucks...
__________________
____________________________________________ 72 c20 longhorn 65k org miles and counting! 69 k10 Suburban |
![]() |
![]() |
![]() |
#15 |
huh ???
Join Date: Nov 2002
Location: Fredericksburg,Va.
Posts: 3,369
|
Hey mtdave2that last filter you posted looks like the one for my dad's 84 chevy with a 4 bbl. His is almost 5 in tall..
Chuck
__________________
90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!" |
![]() |
![]() |
![]() |
#16 |
Old Skool Club
![]() Join Date: Jun 2001
Location: Benton, AR "The Heart of Arkansas"
Posts: 10,880
|
....let's see. Someone gave you a K&N and the housing, but you don't know how well it filters and you drive on a gravel road? Have you been living in a tent?
K&N's have an oil-impregnated cotton gauze filter media that they warrant for 1million miles. The service interval is 50K miles. So, what is the question? These filters are designed to provide superior filtration, compared to oil bath, and pleated paper filters. Oil bath filters did the same thing, but had a coarser filter media, were heavy and cumbersome and had to be serviced periodically to keep the media properly oiled. Paper filters were an "improvement" due to the serviceability issues, and they were lighter in weight. Seems us who were interested in performance didn't like the paper filters, tho. So, the K&N was born. Now, Accel has a clone, as does Summit Racing. I run K&N's on everything except my old Yahama Moto-4, but I'm looking for one for it. They aren't concours correct, but neither is my truck.
__________________
Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was. |
![]() |
![]() |
![]() |
#17 | |
Registered User
Join Date: Feb 2000
Location: Center City, MN, USA
Posts: 3,254
|
Quote:
__________________
'70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN |
|
![]() |
![]() |
![]() |
#18 |
Mike
Join Date: Jan 2003
Location: west chester pa
Posts: 2,474
|
Wish someone would give me one!I am running an accel.It seems to work as good as my k&n.The only reason I went with the accel is because it matches my paint,black and yellow.
__________________
70'c/10, 71 suburban4x4 402bb, 72suburban 4/6 drop, 72k/5 4x4 blazer 4" lift 35 tires |
![]() |
![]() |
![]() |
#19 |
Longtime Member
Join Date: Oct 2002
Location: Over Yonder (DFW)
Posts: 171
|
I just replaced my filter. I have an aftermarket (cheap) chrome air cleaner. The filter I replaced was about 2" tall. I measured the diameter of the bottom lid and went to the parts store to find the tallest filter that would fit under the hood. (More air flow is NOT a bad thing). I ended up with a 4" tall filter. I flipped the top lid upside down because the carb stud wasn't long enough the "right side up" way. Just my 2 cents.
__________________
Rokcrln - "I'm a major car addict so trying to go as low buck as possible is like asking a coke head to use flower to save money." 1972 C10 Short Step -http://67-72chevytrucks.com/vboard/s...d.php?t=261405 |
![]() |
![]() |
![]() |
#20 |
English Chevy Owner
Join Date: May 2002
Location: Shropshire, UK/ Lot, France
Posts: 1,848
|
I believe that K&N offer two types of extra wrap around pre-filter for off road driving that filters out the bigger particles and gives you some added protection. Try here for further info. http://www.knfilters.com/wraps.htm haven't had the need to use them myself but there may be board members out there who have.
__________________
Phil '67 C10 long fleet. 350/TH350, 4 bbl Carter, K&N, Dual exhaust, loads of stuff coming soon 2001 S10 Blazer Daily Driver, bone stock 4 door 4x4 with manual transmission |
![]() |
![]() |
![]() |
#21 |
SLICER AND DICIER
Join Date: May 2001
Location: Quuen Creek
Posts: 1,383
|
Here's a pic of the big filter on our trucks.
__________________
01 Tahoe 22's 2/4 drop and tv's ![]() 68 chevy money pit 51 chevy belair 95 Honda 900RR 05 GMC Siearra (company truck) |
![]() |
![]() |
![]() |
#22 |
Progress = 0%
Join Date: Nov 2001
Location: Kansas City, MO
Posts: 2,108
|
Looks like mine NSANE68!!!.... I think it's a 4"
![]()
__________________
Jason - '67 GMC swb | '57 Bel-Air 4dr hardtop | '56 210 4dr Wagon | 2000 GMC Sierra |
![]() |
![]() |
![]() |
#23 |
Cadillac power
Join Date: Oct 2002
Location: North Idaho
Posts: 296
|
It still doesn't fit unde the hood very well, but I refuse to get a cowl hood.
__________________
Just for the record, if I'm down to my last potato, I'm not sharing it with a guy who wants to kill me so he can get a better supply of virgins in paradise. That lesson is a little thing I call Economics 101, infidel style. --Scott Adams author of Dilbert |
![]() |
![]() |
![]() |
#24 |
Registered User
Join Date: Feb 2003
Location: Bremerton, WA
Posts: 86
|
sixnine-
You can buy a two foot length of the threaded rod for your carb at Home Depot or Lowe's for about a buck or two (its a standard size National Coarse). Just hack it off at exactly the length you want. ![]()
__________________
'72 GMC C20, "2500 Super Custom", Custom Camper, New 454 '93 K2500 Suburban, Old 454 (157K) |
![]() |
![]() |
![]() |
#25 | |
Used to have a truck
Join Date: May 2002
Location: port orchard WA
Posts: 1,552
|
Quote:
Its just a little thing but while the fuel mass is negligible it does two things in the combustion process that cause the exhaust flow rate to be much higher than the intake flow rate. It gets hot and expands and the liquid gasoline turns into a whole slew of gases during combustion . The simple volume of the exhaust gases is considerably greater than the volume of intake gases. The ports on the exhaust side are smaller than the intake because the exhaust gases are under a lot of pressure as they leave the cylinder and escape into a low pressure environment and do not need the larger ports typical of intake ports and valves.
__________________
No truck :-( |
|
![]() |
![]() |
![]() |
Bookmarks |
|
|