More Horsepower (96-98)

[Guest Riggs]

This is a extremely cheap way to add some horsepower

 

Stock

 

 

First Remove Plastic Wing Nut And 10 mm Hex Bolt

 

 

 

Then Remove Hose Clamp And The "Vortec Box"

 

 

 

Not Needed, But Useful, You Can Remove The Breather Hose

 

 

Pull Intake Off The Throttle Body

 

 

Hopefully You Bought The 2" Rubber Plumbing Cap Before You Started, It Looks Like This:

 

 

 

Put The Cap On Where You Took The "Vortec Box" Off, You HAVE To Twist It On

 

[Guest Riggs]

 

Put The Plastic Wing Nut On, And The 10 mm Nut On, And It Will Look Like This

 

[svensk]

That frees up a ton of space.

[Rosedog]

What did you exactly cap off?

[alaska511]

What did you exactly cap off?

 

 

the intake silencer

[thecraft]

I wish you could retrofit an open element filter on those trucks.

[merlin5577]

That would go great with my cheapo air intake....

[Guest Riggs]

wow that looks good merlin!!!

 

what did you use for that?

 

and did you notice anything?

[merlin5577]

wow that looks good merlin!!!

 

what did you use for that?

 

and did you notice anything?

 

Riggs,

 

The picture is straight from the company website. I wish I could say I was really creative and built the intake myself. The truth is I bought it from summitracing for $100. On my Suburban I did swap the Pacesetter filter for a bigger K&N filter. It is a great cheapo intake. The throttle response is amazingly better and it gave the engine a nice growl (even before the cat-back) at WOT. Average fuel econmy went up .5 MPG and the engine seems to be a lot smoother at idle. I definitely recommend it. Check the link below. The kit is now $130 through summit.

 

http://store.summitracing.com/partdetail.a...mp;autoview=sku

[Guest Riggs]

i wonder if home depot would have something like that.... its just a 3.5" 90....

 

and if its too weak i could weld a small bracket and bolt it into a stock hole from the old box....

[silversport]

what benefits did you see (hear)??? Have you tried just removing the "lid" to your airbox???

Bill

[thecraft]

 

 

i wonder if home depot would have something like that.... its just a 3.5" 90....

Please don't make one of those "mad tyte" PVC intakes...

[Guest Riggs]

i was thinking something metal like a heating duct or something..

[redvett]

The air intake silencer has no effect on horsepower but the warm under hood air intake will reduce HP in hot weather. The OEM intake is a fresh air system that balances the cold weather & hot ambient temps for good all around performance & fuel economy. Too hot air in the summer hurts performance and too cold air in the winter lowers fuel economy.

[merlin5577]

The air intake silencer has no effect on horsepower but the warm under hood air intake will reduce HP in hot weather. The OEM intake is a fresh air system that balances the cold weather & hot ambient temps for good all around performance & fuel economy. Too hot air in the summer hurts performance and too cold air in the winter lowers fuel economy.

 

Redvett,

I dont believe your statement is entirely correct. If you eliminate the air silencer you are shortening the path the air has to travel to reach the engine, as well as increasing its velocity by capping off the expansion chamber (also called an air silencer). From what Riggs has stated it does add power. And from what I know of engines, I believe it does too.

You are correct that hotter air will lower HP. But, even with "warmer air", if the engine is able to injest a nearly unlimited amount of slightly warmer air, you will increase power. The OEM intake is designed to "balance the cold weather & hot ambient temps for good all around performance" as you put it, but if you look at the path the air has to travel to reach the engine (starting outside the truck to the hole in the fender where the OEM intake hooks up to, the air is coming through a series of twists, turns, and bends to get from outside the truck to the inside of the engine) the OEM system is a lot more restrictive. What I paid compared to the benefits I am getting from the system, I consider it money well spent. Your results may vary.

As a side note, colder air does not lower fuel economy. Colder air is more dense and therefore contains more oxygen, which engines like, allowing for a relative more complete burn. The reason the rumor (of cold air lowering fuel economy) exists is that in colder weather, some people idle there engines (which gets 0 MPG) to warm the engine up. This practice lowers average fuel economy.