DIY: High Flow Stock Airbox (Swiss Cheese Mod)

[ludvball]

I was thinking of getting the Spectra CAI. My concern was the heat soak. Would spraying the outside of the tube with Undercoating help with heat soak? I like the fan idea. Do you have any pics?

 

[ludvball]

Any thoughts on my previous post?

 

[MASS-HOE'Z71]

I was thinking of getting the Spectra CAI. My concern was the heat soak. Would spraying the outside of the tube with Undercoating help with heat soak? I like the fan idea. Do you have any pics?

by undercoating, do you mean something like a spray on sealant? i would be worried about ambient temperature under the hood melting it or something and causing damage, or possibly even retaining hear. ive had my k&n filter and tube in for about 2 yrs now and havent had any problems, and i spend alot of time stuck in highway traffic, and thats with the cheesy chrome tube that i would think would retain heat more over the plastic one.

wouldnt worry about it if i was you

 

[highrollin113]

I was thinking of getting the Spectra CAI. My concern was the heat soak. Would spraying the outside of the tube with Undercoating help with heat soak? I like the fan idea. Do you have any pics?

i have a spectre looking CAI now that i paid $48 for on ebay brand new and its awesome i have data logged numbers to prove it decreased air intake temp 11 degrees celcius i can post link to the one i bought if your interested, so i wouldnt worry about heat soaking, and this CAI cost less than my k&n drop in filter

 

[ludvball]

Cool, Gonna order the Spectra today. Thanks!

 

[KillerBrandHoe]

hey guys and gals, this is my first post on here and also my first mod.
I picked up my hoe bout 2 weeks ago and it was my first chevy, i came form a being a ford man to loving my chevy even more.
I did this about a week ago and what a difference! the chevy motors already have a nice intake growl but this sounds way laouder than my f150 with a k&n intake. i love it, i put like 20-25 holes in my box, 10 1" and a bunch of little ones, much better throttle response all over the rpm range and a pretty mean sound. a hell of alot better than spending 300+ on a name brand intake, big props to whoever figured this out!

 

[Factorywhip]

i have a spectre looking CAI now that i paid $48 for on ebay brand new and its awesome i have data logged numbers to prove it decreased air intake temp 11 degrees celcius i can post link to the one i bought if your interested, so i wouldnt worry about heat soaking, and this CAI cost less than my k&n drop in filter

Post the link

 

[smurphy80]

I also did this, but has anyone else noticed a decent drop in fuel economy with this? Driving normally I mean, I just did a 400 mile trip this past weekend and usually can get away with about 340 miles to a tank. With this I seem to be getting much less..

 

[DenaliAK]

That's pretty much the price you pay for more power. Mine went down on acceleration, although at speeds it seemed to improve a bit.

 

[smurphy80]

thats what I figured too...on acceleration it would go down...but at speed is weird mine seemed to drop. Although Im also wondering if its bad o2 sensors as I've been getting an intermittent code. Im replacing tonight and will let you all know what I determine

 

[chip]

There's no way to escape the math: More air = more fuel.

 

[gfunkfb09]

I will look into that, thanks.

---------- Post added at 11:58 PM ---------- Previous post was at 11:58 PM ----------

So will a new air filter cause a drop in MPG?

 

[LuSe4]

I also did this, but has anyone else noticed a decent drop in fuel economy with this? Driving normally I mean, I just did a 400 mile trip this past weekend and usually can get away with about 340 miles to a tank. With this I seem to be getting much less..

Do you live in a cold climate? Could be the winter fuel decreasing your mileage and the timing may just be a coincidence.

 

[smurphy80]

I thought that too...but for example now I am roughly getting 100 miles to half a tank. I changed out my O2's and still no change, although I am beginning to wonder if opening up the air box some how screwed with my MAF? Supposed to get my long time fuel readings taken next week.

 

[Vincesrg03]

Did this mod a few days ago, and its great. Yukon sounds great and she has more pep, especially after 2000 rpm. Only thing i did different was drill holes on the bottom plate under the cutout of the airbox instead of having a big hole there. With all the snow and rain we get up here i didnt want to take any risks with water or debris. As far as the mpg, the first day i did notice she was going through it a little quicker, but now she settled down. I think the pcm has to relearn and adapt for a few miles. I took her to work which involves city and hwy driving and now she is all good. Great cheap mod. I love the Forum. Great tips and advice.

 

[bradmps]

Will this mess up my Dual Flowmaster exhaust noise?

 

[chip]

Will this mess up my Dual Flowmaster exhaust noise?

No Sir! If anything, it will bring it to life.

 

[bradmps]

but it hurts gas milage?

 

[chip]

Not necessarily. It will hurt gas milage when you bury the gas pedal, sure, but if you don't drive like an *******, it should improve gas milage. Either way you win.

 

[bradmps]

ok, has everything improved for yours?