Car Forum / Chevrolet / Chevrolet Trucks / May 2005
installed an Edelbrock 10" air cleaner.. WHAT A DIFFERENCE!!
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Bret Chase - 13 May 2005 02:53 GMT today I took my B-day money and picked up a 10" Edelbrock air cleaner.. the 14" has too deep of a dish to work on my '88 K2500, TBI350. I took it and found the biggest 10" air filter the store had (Fram CA126.. I think, about 4" tall). I removed the PCV spacer on the throttlebody and set the air cleaner base directly on the TB itself. the injectors were finally where they should be... in the air cleaner, not shrouded by the PCV spacer. I ran the truck after.. holy sh.t what a difference! I'd have never thought it would have made that much of a difference!.
I've got pics on my livejournal
http://www.livejournal.com/users/bretsk2500
I'm now plotting my next move... I'm thinking either the Flowtech afterburner headers, Y pipe and new honeycomb cat (still have the original monolithic), or an Edelbrock TBI intake and 1.6 rockers.
I'm not currently running any muffler. The truck sounds awesome, and isn't really that loud at all, I'd say the restrictive monolithic cat is quieting it down alot
new heads are out of the question as I can't afford either new Vortec heads with the GMPP TBI intake or junkyard Centerbolt TPI corvette heads.
any thoughts?
-Bret
\ - 13 May 2005 05:09 GMT > today I took my B-day money and picked up a 10" Edelbrock air > cleaner.. the 14" has too deep of a dish to work on my '88 K2500, [quoted text clipped - 25 lines] > > -Bret Bret,
That's the exact same air cleaner I've been running for 4 years on my 88' C1500 and I'd never go back to a closed-element factory aircleaner again. There is one drawback.................you'll be changing air filters every time you chain oil! They get dirty pretty fast.............
Exhaust is next for me as well. Hooker has a nice set of super comp headers and true duals (pre-bent) for under $400 for the set (including turbo mufflers). I can give ya part numbers if interested.
Doc
Bob - 13 May 2005 05:16 GMT >> today I took my B-day money and picked up a 10" Edelbrock air >> cleaner.. the 14" has too deep of a dish to work on my '88 K2500, [quoted text clipped - 32 lines] > There is one drawback.................you'll be changing air filters every > time you chain oil! They get dirty pretty fast............. So what's the problem? If they flow a lot of air but stop most of the dirt it sounds like a win, win situation. Beats the hell out of K&Ns crap which flows well but doesn't stop anything smaller than a rat turd from getting in the engine. Air filters are cheaper than engines Bob
Bret Chase - 13 May 2005 21:24 GMT >:|Bret, >:| [quoted text clipped - 8 lines] >:| >:|Doc are you using that tiny 2" tall filter or did you get a taller one like I did?
-Bret
\ - 13 May 2005 22:20 GMT >>:|Bret, >>:| [quoted text clipped - 17 lines] > > -Bret I got a 4" element like you have..................Purolator Filter, can get the P/N if you'd like.
Doc
Bret Chase - 13 May 2005 23:59 GMT >:|"Bret Chase" <nunya@business.net> wrote in message >:|news:o63a81panqedu6cj7mpvpsnc2giqnj1b26@4ax.com... [quoted text clipped - 27 lines] >:| >:|Doc the Fram CA192 I'm using is only 3.5" tall..... it interchanges to a Purolator A30067... is that what you're using? I'd like to find one that is truly 4" tall, but I was pressed for time when I was at the parts store.
-Bret
burntkat@gmail.com - 14 May 2005 06:15 GMT Hey Doc, Bret, others- LTNT!!
Doc, would appreciate the PN's for the edelbrock unit, and to know if you're using the K&N filter still with it <PN for that, too?>
I'm thinking it will work well with the Blazer's 4.3 <till I put a 350 in her> as it uses the same TBI unit your SBC does.
The Blazer will soon be getting that SAS I've been planning and gathering parts for over the past 5 years. Finally got a house, and now have a garage to work in. I'm thinking the wife will actually be HAPPY to see me working on it and taking up most of the garage for a little while, as it'll mean getting at least 1 of the 3 axles, 4 tires and rims, and a host of small parts out of the back yard... ;) >
Doc wrote:
> >>:|Bret, > >>:| [quoted text clipped - 22 lines] > > Doc Bret Chase - 14 May 2005 12:44 GMT >:|Hey Doc, Bret, others- LTNT!! >:| [quoted text clipped - 10 lines] >:|while, as it'll mean getting at least 1 of the 3 axles, 4 tires and >:|rims, and a host of small parts out of the back yard... ;) > it's the Edelbrock 10" Pro-flo chrome aircleaner. I got it for $24.95 at Autozone. I don't (nor Doc) uses a K&N. I've got a Fram CA192 in mine, I'll replace it with a purolator or a WIX (hopefully a litle taller one) before too long.
-Bret
>:|Doc wrote: >:|> "Bret Chase" <nunya@business.net> wrote in message [quoted text clipped - 34 lines] >:|> >:|> Doc \ - 14 May 2005 15:36 GMT > Hey Doc, Bret, others- LTNT!! > [quoted text clipped - 10 lines] > while, as it'll mean getting at least 1 of the 3 axles, 4 tires and > rims, and a host of small parts out of the back yard... ;) > Where the hell have you been hiding bud!? Good to see yer' still kickin'! BTW, Bret's responses are exactly what I would have said............10" Pro-Flo (Edelbrock PN 1208), hell no to K&N, running a Purolator filter, will get the number later today as I'm headin' out to tinker with my nitor trucks in a few.
Doc
burntkat@gmail.com - 14 May 2005 16:12 GMT nitro trucks, eh? What sort-- I just got my Nitro MT and TMaxx back out the other week...
\ - 15 May 2005 05:49 GMT > nitro trucks, eh? What sort-- I just got my Nitro MT and TMaxx back out > the other week... Megatech Gladiator 1/10 scale.
Doc
I'm Right - 13 May 2005 15:12 GMT stop smoking crack
it makes MORE NOISE its not one bit faster
> today I took my B-day money and picked up a 10" Edelbrock air > cleaner.. the 14" has too deep of a dish to work on my '88 K2500, [quoted text clipped - 25 lines] > > -Bret Bret Chase - 13 May 2005 21:23 GMT >:|stop smoking crack >:| >:|it makes MORE NOISE its not one bit faster well I'm not going to argue with you about it. it's no more noisy than the factory air cleaner, except at throttle tip in.
-Bret
Rich B - 14 May 2005 02:15 GMT You might want to check out CFM Technologies; they have some excellent products. I have the injector tower spacer installed on my 1990 350ci Suburban and I can honestly say that it works as advertised. I also installed the spacer on my son-in-law's tired old 1987 Suburban 350 and you could even feel the difference on it. All it does is raise the injectors up higher in the TBI, which increases air flow and widens the spray pattern. http://www.cfm-tech.com/catalog/air_intake_-_injector_spacer_549426.htm
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% There are two classes of pedestrians in these days of reckless motor traffic - the quick and the dead. ~ Lord Dewar 1933 ~
Climbing into a hot car is like buckling on a pistol. It is the great equalizer. ~ Henry G. Felsen 1964 ~
Bret Chase - 14 May 2005 02:31 GMT >:|You might want to check out CFM Technologies; they have some excellent >:|products. I have the injector tower spacer installed on my 1990 350ci [quoted text clipped - 12 lines] >:|Climbing into a hot car is like buckling on a pistol. It is the great >:|equalizer. ~ Henry G. Felsen 1964 ~ I've had their website bookmarked for a long time. IMHO, by unshrouding the injectors w/ the edelbrock air filter, I accomplished the same thing as the injector spacer, if not better.
-Bret
\ - 13 May 2005 22:21 GMT > stop smoking crack > > it makes MORE NOISE its not one bit faster Uh huh, tell that to my rear tires, which wouldn't lite up with the facotry airbox, but will lite up on command with the Edlebrock unit and huge filter.
Doc
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>> today I took my B-day money and picked up a 10" Edelbrock air >> cleaner.. the 14" has too deep of a dish to work on my '88 K2500, [quoted text clipped - 25 lines] >> >> -Bret Todd Copeland - 14 May 2005 00:45 GMT > > stop smoking crack > > > > it makes MORE NOISE its not one bit faster > > Uh huh, tell that to my rear tires, which wouldn't lite up with the facotry > airbox, but will lite up on command with the Edlebrock unit and huge filter. I'd have to agree somewhat with "I'm Right"... a non-high performance vehicle might gain about 5hp from a change in an air filter alone. There is just no way for anyone to feel an increase of 5hp. On the same note, my truck runs _much_ better just after having been washed and wax. Go figure.
At best, a vehicle migth gain 15hp but this is only in the highest of performance stock vehicles. Even then, it's rare.
Hairy - 15 May 2005 06:20 GMT > > stop smoking crack > > [quoted text clipped - 4 lines] > > Doc Correct me if I'm wrong, but I think I remember you saying, many times, that the stock airbox will flow way more air than a stock engine can use. In any case, the open air filter would only make a difference at WOT when the engine is really sucking air. How much time do you spend at WOT? H
\ - 15 May 2005 15:26 GMT > Correct me if I'm wrong, but I think I remember you saying, many times, > that [quoted text clipped - 3 lines] > engine is really sucking air. How much time do you spend at WOT? > H You've misquoted me. I have said many times that the stock air FILTER (not airbox) will flow more air than the engine can use. Put that filter in a restrictive OEM airbox and it can't perform to potential.
You fellas are missing some other key points here as well:
Lowering the filter element by removing the PCV shroud effectively puts the injectors directly in the flow of incoming air and promotes better atomization.
Using an air filter with a smaller diameter but greater height changes the direction air enters the throttle body and passes by the injectors; it is pretty much on a straight downward course as opposed to traveling sideways thru the filter then making a 90 when it hits the vacuum of the intake stream. This increases air velocity and also helps with proper atomization.
Doc
Bret Chase - 15 May 2005 19:53 GMT >:|> Correct me if I'm wrong, but I think I remember you saying, many times, >:|> that [quoted text clipped - 21 lines] >:| >:|Doc I'm going to go outside and take a picture of the factory air intake on my truck... maybe then they'll se why it makes such a difference.
-Bret
Whitelightning - 15 May 2005 22:42 GMT > You fellas are missing some other key points here as well: > [quoted text clipped - 9 lines] > > Doc My memory aint what it once was, but it seems to me we used to place 2-4 inch high "velocity" stacks between the air filter housing and the carbs to increase horsepower and torque. The idea being to give the air a chance to start flowing in a smooth downward direction. and also speed the air flow up through the carb. So removing the base adaptor in favor of a flat floor air cleaner housing seems to go counter to that line of thinking. Given how hot under hood temperatures are, not using a snorkel system of some sort seems counter productive as well. will agree the stock ones in most cases are too small, and modifying them to use two hoses such as Buick, Olds and Chrysler did back in the day (as well as others) would be the way to go coupled with a 4" velocity stack. As to Harry's question about WOT, I put Brett between 17 and 24 closer to 17, so I would say the poor rig spends considerable time at WOT.
Whitelightning
Bret Chase - 16 May 2005 00:07 GMT >:|> You fellas are missing some other key points here as well: >:|> [quoted text clipped - 27 lines] >:| >:|Whitelightning actually I'm 31
-Bret
Bret Chase - 16 May 2005 00:58 GMT >:|My memory aint what it once was, but it seems to me we used to place 2-4 >:|inch high "velocity" stacks between the air filter housing and the carbs to >:|increase horsepower and torque. The idea being to give the air a chance to >:|start flowing in a smooth downward direction. and also speed the air flow >:|up through the carb. So removing the base adaptor in favor of a flat floor >:|air cleaner housing seems to go counter to that line of thinking. removing the PCV adapter is to get the injectors and fuel pressure regulator out of the way.
which if you look at http://home.gwi.net/~amychase/images/shrouded_injector.jpg
you'll see that they take up more than half of the area allowed by the PCV spacer. carburators don't have to worry about injectors or FPR's. the only thing in the bores are the annular boosters and they take up less than 10% of the area. this is why *in this application* a flat bottomed aircleaner with a tall element is better than a velocity stack.
the bigger problem is illustrated by: http://home.gwi.net/~amychase/images/snorkel1.jpg and http://home.gwi.net/~amychase/images/snorkel2.jpg
the snorkel, which is over 2 feet long is a meager 1"X4" on the outside and makes 3-90 degree turns. so giving the pipe an internal area of 2.8sq in (assuming a wall thickness of .125". of course the throttle bores have a combined area of 4.4 sq. in. aka a loss of more than 36% of flow potential.
>:|Given how hot under hood temperatures are, not using a snorkel system of >:|some sort seems counter productive as well. no one said it wasn't. all I ever said was the open air cleaner *in this application* is better than the *stock* configuration
will agree the stock ones in
>:|most cases are too small, and modifying them to use two hoses such as Buick, >:|Olds and Chrysler did back in the day (as well as others) would be the way >:|to go coupled with a 4" velocity stack. well with a 4" stack, the stock air box would be sticking through the hood.
>:|As to Harry's question about WOT, I put Brett between 17 and 24 closer to >:|17, so I would say the poor rig spends considerable time at WOT. >:| >:|Whitelightning I love how these always devolve into "you're some dumb punk kid who doesn't know sh.t". I'm a 31 year old happily married father of 3 and my truck sees WOT about 2% of the time, if it's even that high.
-Bret
Whitelightning - 16 May 2005 04:36 GMT > I love how these always devolve into "you're some dumb punk kid who > doesn't know sh.t". I'm a 31 year old happily married father of 3 and > my truck sees WOT about 2% of the time, if it's even that high. > > -Bret I'll admit to making a bad assumption on the age based on the wording of the first post. It sounds like a 17 year old whose parents gave him a decent chunk of change for his birthday.
Whitelightning
\ - 16 May 2005 05:01 GMT >> I love how these always devolve into "you're some dumb punk kid who >> doesn't know sh.t". I'm a 31 year old happily married father of 3 and [quoted text clipped - 10 lines] > > Whitelightning The air cleaner is $24.95 at Autozone..........you define that as a decent chunk of change?
Doc
Elbert - 13 May 2005 23:10 GMT >today I took my B-day money and picked up a 10" Edelbrock air >cleaner.. the 14" has too deep of a dish to work on my '88 K2500, [quoted text clipped - 25 lines] > >-Bret got a similar truck 92 version k1500 350 TBI
what did you do with the pvc plumbing?
is the 10" the largest in diameter that will fit on that style engine?
also saw you guages on your web site moutned on the A-pillar... what did you use to adhere the pod mount to the a-pillar?
Thanks, Elbert --- Elbert Clarke elbert.clarke@**adelphia.net remove ** to email
Bret Chase - 14 May 2005 01:19 GMT >:|got a similar truck 92 version k1500 350 TBI >:| >:|what did you do with the pvc plumbing? on the bottom of the Edelbrock air cleaner there is a port for a PCV breather hose. I removed the spacer ring and ran a 1/2" hose from that port to a shortened section of the factory hard pipe to the grommet in the valve cover. I'm planning on getting the Edelbrock #4410 breather with nipple to replace the black plastic hard pipe. on my LJ, in the picture of the base, the port is directly under my thumb.
>:|is the 10" the largest in diameter that will fit on that >:|style engine? yes and no...
if you can find a 14" air cleaner with a flat bottom, it'll fit.
>:|also saw you guages on your web site moutned on the A-pillar... >:|what did you use to adhere the pod mount to the a-pillar? it's an autometer gauge cage that comes with 4 plastic fasteners that you drill holes for and push them in.
-Bret
Elbert - 14 May 2005 02:40 GMT >>:|got a similar truck 92 version k1500 350 TBI >>:| [quoted text clipped - 7 lines] >on my LJ, in the picture of the base, the port is directly under my >thumb.
>>:|is the 10" the largest in diameter that will fit on that >>:|style engine? [quoted text clipped - 10 lines] > >-Bret Ok I figured as much on the pvc plumbing...
I believe what we use to call plastic rivits would work on what you are talking about on the guage pod.
I don't care for the OEM PVC air cleaner extension either
I'm a fan of the old style "hot-rod" type air clearners but they do pull in all the hot underhood air. I think the factory setup that pulls air from the RH fender well is a pretty good idea. I removed the hot air intake section from the OEM air cleaner and that heat operated valve becuae I no longer could tell it was opening up all the way. I cut some sheet metal and rivited it across the gap where the valve use to be. I don't see the need for the hot air intake from the exhaust manifold on a fuel injected engine anyway.
Elbert
--- Elbert Clarke elbert.clarke@**adelphia.net remove ** to email
Bret Chase - 14 May 2005 12:51 GMT >:|Ok I figured as much on the pvc plumbing... >:| [quoted text clipped - 13 lines] >:| >:|Elbert if you look, air isn't actually drawn from the fender well, the air is drawnfrom directly behind the passenger side headlights and routed through the fender opening before making a 90deg turn to get through the inner fender. I had had the TAC disabled for a long time, as mine no longer functioned at all... it was like my truck was trying to get air through a straw. the theory behind the TAC is to help warm the air to prevent fuel from sticking to the cold sides of the intake manifolds. in this respect a TBI motor and a carbed motor are no different.
I've also got the rubber fender liners removed so I could get better cooling (old radiator was marginal) so it doesn't get all that hot in the engine compartment. I'd like to make or buy a functional cowl induction hood.. but time will tell.
-Bret
Elbert - 15 May 2005 16:09 GMT >>:|Ok I figured as much on the pvc plumbing... >>:| [quoted text clipped - 30 lines] > >-Bret you're right on the air intake path.... I had never bothered to verify exactly where the point of entry was located. guess thats the pickup version of a "cold-air-intake".
I do like the sound of the open element air filter though.
I can't say if my truck runs better with the open style air filter in comparison with the OEM setup, but I do like the looks, and simplicity / sound of the "old-school" edelbrock air filter assembly. I did find about a 3" tall air filter to fit the 10" air cleaner, I believe a 4" tall filter would be about perfect. Anyone know a part number for a reliable filter let me know.
Elbert --- Elbert Clarke elbert.clarke@**adelphia.net remove ** to email
I'm Right - 14 May 2005 15:31 GMT friday night Test n Tune at the Local dragstrip would prove just how wrong you are.
stock 3 passes that are consistant then swap on that 10" air cleaner then run again, 3 passes that are consistant
whats the difference?
0.02 of a second? , that would be the weight of the fuel burnt.
> today I took my B-day money and picked up a 10" Edelbrock air > cleaner.. the 14" has too deep of a dish to work on my '88 K2500, [quoted text clipped - 25 lines] > > -Bret \ - 14 May 2005 15:37 GMT > friday night Test n Tune at the Local dragstrip would prove just how wrong > you are. [quoted text clipped - 6 lines] > > 0.02 of a second? , that would be the weight of the fuel burnt. If you'll pay for it I'll run the dynos dude.............
Doc
>> today I took my B-day money and picked up a 10" Edelbrock air >> cleaner.. the 14" has too deep of a dish to work on my '88 K2500, [quoted text clipped - 25 lines] >> >> -Bret Todd Copeland - 14 May 2005 19:18 GMT > If you'll pay for it I'll run the dynos dude............. It's been done and on high performance engines it yields about 15hp. On any other engine it yields about 5hp, less then anyone can tell by driving it.
Rich B - 14 May 2005 21:52 GMT >Group: alt.autos.4x4.chevy-trucks Date: Fri, >May 13, 2005, 9:31pm From: [quoted text clipped - 4 lines] >same thing as the injector spacer, if not better. >-Bret I think I should clarify my statement. While installing a higher flow-rate air cleaner will increase the flow to the TBI unit or carb., This spacer will lift the inectors out of the bore effectively increasing the airflow capacity of the TBI unit (it's like enlarging the throat of the TBI unit. High pro air cleaners work but you can't flow more air than will pass through the unit and that (flow capacity) is dependent upon the size of the TBI or carb bore.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% There are two classes of pedestrians in these days of reckless motor traffic - the quick and the dead. ~ Lord Dewar 1933 ~
Climbing into a hot car is like buckling on a pistol. It is the great equalizer. ~ Henry G. Felsen 1964 ~
Shades - 15 May 2005 03:56 GMT I am just gonna put my 2cents in...
It has been proven for years that a cold air intake will clearly outperform an open element once under hood temps rise above exterior temps. The problem with 90% of the factory air intakes, is that they are designed for looks and sound deadening FIRST, and flow second.
I fabricated a dual snorkel setup on my 'Burban and gained a handful of tenths in average MPG. Slightly noticeable gain in performance especially going down the freeway. I also had ALLOT better drivability for stop and go driving!
I always ran a 10inch open element filter with 2 4inch(or so)Fram elements stacked on top of each other. Sick of always having a filthy element after ANY off-road excursion and sick of replacing them every oil change(as was mentioned), I installed a closed element filter from a late '80's Chevy(tall element type) and routed the tubing to a fairly open area of the radiator support. I immediately felt a difference in performance. and lost track of how many miles were on the element with hardly any dirt. I also got 2-3 MPG better!
Just my 2cents...
> today I took my B-day money and picked up a 10" Edelbrock air > cleaner.. the 14" has too deep of a dish to work on my '88 K2500, [quoted text clipped - 25 lines] > > -Bret
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