Does anyone have one of this? what can you tell me about it, like how did gas mileage increase, does it sound better, etc?

 

Several people have run these on thier TBI and from what I have picked on it, it does not help having that lid unless you have a cowl hood or something. The filter element itself made my car sound good under the hood and it dont burn nearly as much gas sitting on stands lol.

 

Waste of money...

 

I will have an induction hood.

 

The problem with these filters is that the hood covers the usable area of the top lid portion, so if your hood creates a big enough space between it and the top portion of the filter I say go for it. If you need measurements I'm sure summit has it on there website.

 

I installed a open round open element air filter on my 1991 RS 5.0TBI. It made a huge seat of the pants and sound difference. It didn't actually make the car much faster, but it felt faster when driving. I have a normal Chrome lid on top of the air filter. I only have a 3" element and the top of the lid touches the insullation on the underside of the hood. So unless you have a highly raised cowl hood, the K&N Lid won't help at all.

 

I put a regular paper filament open-air cleaner on mine, and it made a big dfference. I then upgraded to a K&N, even better. And THEN i got the Xstream top. The only difference I could tell with the top is that the throttle body makes a LOT more noise, very loud hissing type sounds when the throttle is part open. Thats it.

 

i have lots of mods.
350tbi etc,

i changed from a cold air intake to an open element,
k&n 14 x 2 1/4
my airflow is by far not enough.
lots of problems in the high rpm area.(too rich)
i ordered a 14 x 4 with flow top and wheb i receive it i'll let you guys know if it really make a difference.
i hope that i can get enough air in the motor again only now with a open element-look.

Tom

 

i have one with 4"cowl hood, sounds cool but wouldn't be any use really without a cowl or ther induction setup. would just pull in more hot air with a regular hood

 

Just wondering i have a 4 inche cowl on my camaro with the 305 tbi andi want to get one of these assemblies which one did you purchase like the how high did you get it and stuff. Please let me know thank you enrico.

 

 

I think he means acceleration

 

I like mine. I think it sounds way cool too. it always turns heads whenever i start my car. if you want a pic of it i can show you.

 

The reason most people consider using them, in my opinion, is when hood clearance is tight. They figure- here's the solution, I'll let air in from the top, not just around the edges! But it's a head-fake. They work TERRIBLE in tight clearance situations.

Why?

External dimensions, they are the same as a sheet metal air cleaner lid but INSIDE the filter pleats stick down about 3/4". If you thought space was tight over your carb or TB before, you ain't seen nothing until you give up another 3/4". You might pic up some flow through the lid but you can lose just about everything coming from the existing perimeter filter by choking off it's path to the carb/TB, especially on a drop-base air cleaner where the ledge "steps up" from the dropped filter area to the part of the base that mates up with the top of the carb/TB. A typical aftermarket 14x3" open element with a 1.5" drop has barely more than 1/4" of space between the base and the inside of the X-Stream lid at it's tightest choke point. And "free room" directly above the carb/TB is very restricted. Carbs REQUIRE a good amount of free space above them for the air to "straighten out" and flow smoothly through the venturis in order to meter fuel correctly, or even acceptably. TBIs, maybe not so much, but I doubt you're getting good airflow regardless.

Trust me, I've tired it. Entirely in carb applications, but the same basic physics still apply. With tight hood clearance it made things WORSE. A standard sheet metal lid worked much better.

I still have mine, which I'm willing to sell cheap.

I won't say it's worthless, but I can't imagine many situations that it would help.

 

Try one of these Models of Ram Air Box