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

[CKTA]

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".

[CKTA]

http://www.fullsizechevy.com/forum/s...&threadid=2163

[TigerEyz3]

Did you descreen your MAF when you did this? If not, would you recommend doing it?

[CKTA]

Originally posted by 5-8CHEVY

He did descreen and I would recommend it for sure.

Yup. However, you don't have too.

[Monarchcx]

What's descreening your MAF?

CX

[Luke2kZ71]

Originally posted by Monarchcx
What's descreening your MAF?

CX

inside your mass air flow sensor is a metal screen, many people remove this.

[uihockey2]

are there any reasons to not descreen the maf? also, thanks for the little tutorial here ckta. i think im just going to have to do this.

[CKTA]

Originally posted by uihockey2
are there any reasons to not descreen the maf? also, thanks for the little tutorial here ckta. i think im just going to have to do this.

No, some complain about a rougher idle of wrorse gas milage. I personally have been doing it since I took ownership of my first TPI F-body back in the day. I have gotten good results on everything I have done it to. If you don't want to descreen your MAF you DO NOT have to for this intake....it's up to you.

[Physh1]

IMO, on CKTA's kit you can remove it w/o issues. Mainly because the airflow is straight and true to the engine. On some cold air kits it can cause rought idle, etc. because the screen is there to help even out air flow over the sensor in the MAF. Uneven airflow over the sensor causes idle issues and stumbles.

Cameron

[uihockey2]

if i descreen the maf, and it causes any roughness, can i put it back on? thanks for the help guys.

[CKTA]

Originally posted by uihockey2
if i descreen the maf, and it causes any roughness, can i put it back on? thanks for the help guys.

No you can't, you kinda have to "break" it out. Start off w/ just the Depot intake and see if you like it.

[uihockey2]

ok, thanks. i will do that

[JAMIEZ71]

you can put the screen back into the MAF. I put it back into my 96 vortec. I did this cold air mod to the box and baffle. I could tell a huge difference with the throttle response. As for the screen though it did hurt the mileage. I put it back in and it seemed to be where it was before the screen removal. You don't have to break the screen to get it out. Just remove the snapring from behind the screen carefully with a small screwdriver and then use the handle of the small screwdriver to tap the screen out from the opposite side. Takes a few taps to get it broke free.

[CHEVS4ME]

did you actually notice gains that would be any different from simply droping in a k&N??? cause I always thought it was the box that says "vortec" on it that was the most restricting part of the intake..

[slmdLS1]

CKTA, do you happen to know if the LS1 f-body's MAF and TB are 3.5" just the same as this write up? i have been meaning to take a closer look, and have been to lowes once, but they didnt have much i coulda used.

[groundscraper5]

I tried this intake on the wife's tahoe and did notice a difference. Not sure how different it was from using the K&N with the stock airbox as I went straight to this setup.
I'm happy with the results. Good tech article, CKTA.

[groundscraper5]

Originally posted by 5-8CHEVY

I didn't notice much on the 98 when I put the airraid gen I kit on but I did notice it helped more with the muffler.

It wasn't a huge differece, but me and my wife noticed an improvement on throttle response. I do need to get a 50 series flowmaster and get that huge 60 gallon tank of a muffler out of the way.

[1badgmc]

Originally posted by groundscraper5


It wasn't a huge differece, but me and my wife noticed an improvement on throttle response. I do need to get a 50 series flowmaster and get that huge 60 gallon tank of a muffler out of the way.

I bought a cheap $30 kit off eBay with a chrome tube and a cone K&N. I noticed a little difference. I'm also going to block off the air silencer and I want to run a tube from the MAF to the TB to replace the slinky. That should help a bit too. I just got a nice Magnaflow muffler in for it today. Once I get that on we'll see what we get.

[CHEVS4ME]

so the silencer is the box that says "vortec" on it right??
blocking it off, and having the set up explained in the tech article should make a difference compared to stock airbox with a k&N then????

thanks

[1badgmc]

Originally posted by CHEVS4ME
so the silencer is the box that says "vortec" on it right??

Right.

blocking it off, and having the set up explained in the tech article should make a difference compared to stock airbox with a k&N then????

Should.