“To one who has faith, no explanation is necessary. To one without faith, no explanation is possible.” - St. Thomas Aquinas

“To one who has faith, no explanation is necessary. To one without faith, no explanation is possible.” - St. Thomas Aquinas

'07 STI
'99 Durango
'79 GS100E
'01 SV650S

Original 427 Shelby Cobra

Jag D-type

Porsche 908 (IIRC)

Ferrari V12 (Columbo)


Modified by IJM at 2:35 PM 6-8-2008

GTI VR6

-Lounge's most timid driver: 2008-2009 I dont even drive anymore. I sneak around on my MTB.

“To one who has faith, no explanation is necessary. To one without faith, no explanation is possible.” - St. Thomas Aquinas

“To one who has faith, no explanation is necessary. To one without faith, no explanation is possible.” - St. Thomas Aquinas

Seeing as some have them uncovered and some are completely shut I'm guessing its all for looks? Whats the purpose?

“To one who has faith, no explanation is necessary. To one without faith, no explanation is possible.” - St. Thomas Aquinas

It's a way to tune the intake air. I'd say this is more important with carbs since the charge itself is what picks up the fuel (from the carb jets) versus having the fuel injected mechanically.

“To one who has faith, no explanation is necessary. To one without faith, no explanation is possible.” - St. Thomas Aquinas

Actually, I thought ram air intakes were to give a slight supercharging effect in the low/midrange to boost torque? Something about the better directed intake air building some pressure above the closed valves in the intake, which helps push the intake in the cylinders when the valves open, and promoted more turbulence in the cylinder (better air/fuel mixture).

Honda even used a ram intake on the initial 97/98 CRV to try and help boost the low rpm torque, since it was kind of weak for the vehicle weight (especially with an auto tranny).

Modified by BRealistic at 12:29 PM 6/8/2008

it was in a 917 chassis at rennsport reunion III

some other porsches

quoted for truth

Da Bears

Sempre Tifosi

Ron Paul '08

There isn't one.

my question for this topic:
Correct me if I'm wrong, but aren't they used to improve power at a certain RPM (the length and design of the velocity stack is specific to where you want the power band optimized)?

So any debris/dust is just sucked into the engine? That doesn't sound very smart.

“To one who has faith, no explanation is necessary. To one without faith, no explanation is possible.” - St. Thomas Aquinas

Quote, originally posted by rosskoss »

Because most Americans raise goats at home.

Love that!

Quote »

would putting a small filter under each stack basically negate any effects it has?

Not if they're fairly free flowing and sit on the end of the trumpet.

Some people put them on the individual stacks...

Some people fab a plate to the end of the stack and run a wide filter. Take this design...

... and replace the CF plenum with one of these.

Vortex Transaction History

Imagine doing plugs and wires on that!

The 356 build: starting soon!
http://forums.vwvortex.com/zerothread?id=4664268

Quote, originally posted by DarthVader »

I think even A-list celebs would put out if you had a F355 car bed. But only if you lower it.

Quote, originally posted by BattleRabbit »

Imagine doing plugs and wires on that!

twin-plugs on a 16 cylinder motor.....and Larry, the Porsche flat 16 did run in several racing events.....

Larry (formerly LSinLV)

26B rotary FTW

Law of Logical Argument: Anything is possible if you don't know what you are talking about

Quote, originally posted by vwlarry »

At best some of the stacks on racing engines had screens capping them to keep out the bigger stuff like small stones and birds. On a racing car, filtration just wasn't considered of high importance I guess.

Yep, back then the engines weren't precision enough for it to matter when the engines were being rebuilt every race anyway.

For a modern road car running without filters is a deathwish. But plenty of cars have velocity tubes inside a plenum box or behind a filter. Nearly every motorcycle out there does.

My hero, Dick Landy

Quote, originally posted by TheDarkEnergist »

Life is bland enough for Toyota owners, they need some excitement. Nothin says wake the f**k up like riding a runaway washing machine at 100mph down the freeway