Home made air intake for '96-'99 Vortec trucks.

[DruDizzle2003]

[quote]Originally posted by CKTA
[b]This is a very simple and effective mod. All you need is a stock replacement K&N filter (or similar cone style) and a trip to Home Depot.


1. K&N stock replacement filter

2. One Fernco coupler. I believe the size is 3-1/2 to 3-1/2"

3. Two worm clamps that fit over that Fernco

4. PVC pipe (3-1/2" O.D. pipe) I believe that is 3" PVC pipe

5. One ceiling pipe hanger, pipe size to fit over PVC pipe dia.


Start off by loose laying the filter on/against the pass. side inner fender.

Figure out how long of a piece of the PVC pipe you need and cut to length.

Mark and drill the IAT sensor hole and insert the rubber grommet from the stock airbox.

Install the Fernco on the MAF and then slip in the pipe, then the filter.

Install the pipe hanger over the exposed pipe and mount the hanger part (with the holes) behind the 2 heater hose bracket on the inner fender. Some enlarging of the holes in the hanger may be need to get the factory bracket to slide through, I only had to enlarge one.

Tighten everything up and enjoy better throttle responce, better milage and better upper RPM "pulls".
Hey great idea!....I would just like to know if this mod will work for a 99 5.7L Central Port Inj Yukon. Thanks

[1badgmc]

Originally posted by DruDizzle2003


Hey great idea!....I would just like to know if this mod will work for a 99 5.7L Central Port Inj Yukon. Thanks

That's the same engine/engine compartment as his '96 pickup.

[DruDizzle2003]

What about the part of the intake that runs to and gets air from the fender?

[JAMIEZ71]

I left my tube that runs into the fender there. Doesn't restrict airflow and could allow it to pull a little more cool air from the fender.

[1badgmc]

Originally posted by DruDizzle2003
What about the part of the intake that runs to and gets air from the fender?

Like I said, same thing.

[bradz71]

I'm running just the K&N filter and noticed a 0.5-1 mpg gain. I ran my truck with the airbox lid off for a while-to see if that made a difference. The 'seat of my pants' test felt like it helped, mileage didn't change, but when I ran it that way at the track it was slower than with it on. I keep it on from now on.

[tormenting5.7]

Hey the thing in the fender, pull it!!!! You'll get better flow. Also that open cone draws a lot of heat from the eng. You better make sometype of heat shield to get the full effect.

[DruDizzle2003]

Does the new filter give the engine a different sound?

-Andrew

[Monarchcx]

Yes.

[Idaho Guy]

The boys at Home Depot looked at me like I was speaking Greek when I asked where I could find the ceiling pipe hanger listed as parts for this article. The only thing they had was some galvanized "plumber's tape". It's about 10' long, about 3/4" wide and has little holes running the entire length of it. They didn't have anything else. I next went the local "mom and pop" plumbing store and they, too, didn't have anything. Could someone who's installed this home-made kit on their 5.7L Vortec send me some pics of their setup? I'd much appreciate it. Thanks.

[CKTA]

Originally posted by Idaho Guy
It's about 10' long, about 3/4" wide and has little holes running the entire length of it.

It looks like that except it has a round black rubberized pipe holder end on it. Are you at a fax machine? I can draw it for you.

[juztyn]

what model in particular k&n filter did you use?? and i have a 4.3 and a big airbox (pipe runs into the back of the airbox) so do i just take the whole thing out?? thanks...

[Idaho Guy]

Yea, that's what I did. Unscrew the bolt that goes thru the fender to get that big plastic piece of out there. I held onto mine in case I ever sell the truck. Everything upstream side of the MAF is new.

Originally posted by juztyn
what model in particular k&n filter did you use?? and i have a 4.3 and a big airbox (pipe runs into the back of the airbox) so do i just take the whole thing out?? thanks...

[Idaho Guy]

Home Depot didn't have it so I went to Lowe's and I found what I was looking for:

--> Picture of Ceiling Pipe Hanger

Hope this helps anyone else who installs this home-made kit.

[CKTA]

Originally posted by Idaho Guy
Home Depot didn't have it so I went to Lowe's and I found what I was looking for:

--> Picture of Ceiling Pipe Hanger

Hope this helps anyone else who installs this home-made kit.

BINGO! How do you like the whole set-up now?

[Idaho Guy]

I like it - I like it a lot! Much better throttle response in the higher RPM's. It did change the sound of the motor but really not by much. Just a tad more growl during hard accelerations. I'm not totally satisfied with my pipe hanger installation. It does the job but I'm thinking of re-doing it to make it look better.

All in all, I like it very much.

[CKTA]

Originally posted by Idaho Guy
I like it - I like it a lot! Much better throttle response in the higher RPM's. It did change the sound of the motor but really not by much. Just a tad more growl during hard accelerations. I'm not totally satisfied with my pipe hanger installation. It does the job but I'm thinking of re-doing it to make it look better.

All in all, I like it very much.

[TB383]

This is a grea idea but what if you are one that goes off roadin and get dirty in the mud. When you go through some thick mud alot of mud gets into the engine bay and might cover ur filter with some mud. Any ideas on how to like cover of build some box so it wont get muddy and wet when going off road?/?

[DruDizzle2003]

Are the intakes available on Ebay such as this one http://cgi.ebay.com/ebaymotors/ws/eB...m=2454278 421 any good?
Thanx!

-Andrew

[1badgmc]

Originally posted by DruDizzle2003
Are the intakes available on Ebay such as this one http://cgi.ebay.com/ebaymotors/ws/eB...m=2454278 421 any good?
Thanx!

-Andrew

I'm running an eBay intake basically like that on the Yukon and it's just fine. You can't even get a K&N cone filter for the price I paid for the whole tube and all.

Sometime I plan to run a smooth tube between the TB and the MAF to get rid of that "slinky."