Air intake tube options

[Chris Coufal]

What are you guys using for airtube and filter? Battery is being moved to the back....so I can go left or right. Going into a 66 with an LQ4.

[jackyl9999]

I used a stock airbox setup. Cheap and easy to find.

[KMC3420]

I Plan on using this. TRKFRK used it.

Amazon.com: GMT800 V8 Truck/SUV 4" Aluminum...
http://67-72chevytrucks.com/vboard/s...424609&page=21

[BR3W CITY]

A perfect segue for me to insert myself lol

Moving the battery

You Tube

Building an air box for an ls swapped c10

You Tube

*I have pics in my build of the intake kit I started with. Its the 2004 Silverado cold air intake which you can easily find in 50 version on ebay for under $50...which has had the tubes flipped and brackets trimmed. I did add an additional bend from Spectre, but only because my intake had been modified already once before. But its possible to make a functional intake with just the cheap Silverado kit by itself.

[Chris Coufal]

Thanks for the videos. What engine cover is that off of? I have the basic Vortec one and don't like it.

[mongocanfly]

I used spectre fittings and filter and 4" mandrel bent alum tube...got everything i needed off ebay.

[BR3W CITY]

Originally Posted by Chris Coufal

Thanks for the videos. What engine cover is that off of? I have the basic Vortec one and don't like it.

No problem. The cover is the 3-piece vortec max cover. It came on some of the Denali's, Yukon XL's, and I think a couple of the high-option package trucks. Its the same basic cover as the "vortec 6000" and Cadillac 3 piece covers, but the center just has "Max" on it instead of something else. Lettering was just hand painted on since everyone kept asking what size motor it was.

[lutronjim]

If you are using MAF sensor, make sure you have 4" tubes. I got a unit off Ebay that downsized from 4" to 3.5" at the throttle body and kept getting codes. Changed to 4" and no more problems.

[BR3W CITY]

The throttle body and MAF are 85-92mm depending on exact combo, either of which shouldn't have a problem with a 3.5" tube (87mm is ~3.4")

Are you sure it was the tubing size that caused the issue, not the actual placement of the MAF in relation to the tubing and bends?

[Chris Coufal]

where should the MAF be placed within the tubes?

[BR3W CITY]

Originally Posted by lutronjim

4" to 3.5" at the throttle body and kept getting codes. Changed to 4" and no more problems.

Originally Posted by BR3W CITY

The throttle body and MAF are 85-92mm depending on exact combo, either of which shouldn't have a problem with a 3.5" tube (87mm is ~3.4")

Are you sure it was the tubing size that caused the issue, not the actual placement of the MAF in relation to the tubing and bends?

So despite the math actually working, I was looking at another manual from a crate engine which actually does list a 4" diameter tube. Though it doesn't rule out a 3.5", it does specifically refer to a "4" tube. I've got the text below.

Originally Posted by Chris Coufal

where should the MAF be placed within the tubes?

You want it in a straight run of tube, with at least a few inches before any bends or any portion which may create turbulence. This includes keeping it far enough away to avoid turbulence from the throttle body. Here's the reference from gm:

Ensure the MAF sensor is oriented correctly in the induction (it will
only read correctly in the proper direction). An arrow is located on the
sensor indicating correct flow direction. Verify this before welding the
mounting boss, as the sensor will mount only one way in the boss.

Ensure the MAF Sensor is mounted in the middle of a minimum 6 inch
length of 4 inch diameter tube, and is a minimum of 10 inches from
the throttle body."

[Robznob11]

I used two eBay Silverado kits with a k&n. Mass needs to be in the longest straight section of pipe at least 10" away from the tb for best results.

[dayj1]

The advice that you've been given so far is good and is directly in line with the GM recommendations, but I found that MAF placement was quite forgiving in my case. I attached the MAF directly to the throttle body and it runs great and has never thrown any codes.

[Robznob11]

Mine was directly on tb too and seemed to be fine , that is until I dropped a cam in it. Then it started running lean and popping through the intake.

[kitsbeach]

Originally Posted by dayj1

The advice that you've been given so far is good and is directly in line with the GM recommendations, but I found that MAF placement was quite forgiving in my case. I attached the MAF directly to the throttle body and it runs great and has never thrown any codes.

Okay that is a very cool setup..!!

And what are those valve covers and/or heads with the perimeter bolts..??

[Chris Coufal]

thanks