Throw away that Clogged Stocked Airintake

Eh....
Engine candy.

I like some of the things that have come out of the tuner community, but trying to pass cold-air intakes and fart can exhausts off as 'performance mods' in a Prius Power Plant might be stretching the truth juuuuuuuust a little bit.

I have a high flow air filter myself (Amsoil's Ea, which is a dry filter.)
BUT it's on an 06 VRSCD which is also topless and has a remapped ECU and uncorked exhaust.
I absolutely DID get a BHP gain that I could really feel and dyno numbers on similarly modified bikes 'claimed' a 10-15 BHP gain over the 115HP stock value - so I chop that value by 2/3 and guestimate that I'm probably putting down about a buck twenty.
My real-world fuel efficiency dropped from 50 to 40-45.
(Real) engineering works like that.
If you want real horsepower gains, you usually have to feed those extra ponies.

For a 600 pound bike I got a decent return on a $40 filter, a $75 fuel re-mapper, and a $10 hole saw.

For a 3200# car with about a 135BHP powerplant and a closed-loop fuel system?
I'm guessing that you're going to have to dig a little deeper than that.

It's all good, and everybody likes to see chrome when they prop their hoods, but I'm not going to be convinced that just going down to AutoZone and buying a POS oily gauze pad and calling it a good air filter will result in any horsepower or fuel efficiency gains that real people can really feel when they drive their cars in the real world.

Throw away the filter.
Prop open your hood.
Put the K$N sticker on your intake.

You're in the tuner club without damaging your car.

They don't appear in my browser either...
I've seen chrome intakes before.
They're nice looking!!
I like Prius drivers that aren't rolling left-lane road blocks.
I'm just a little skeptical on some of the over-hyped 'bolt-on' crap.

YMMV

 

yeah, got to take it with salt. but I like eye candy.

 

Everybody does.

 

I was thinking the same as you!

 

if our politicians weren't a pack of useless retards, it would be a federal law that the left lane is for passing only, and slower traffic must move to the right, or get a ticket.

 

try 5 years.

 

I still like my intake

 

I like it too. sure wish I could buy a 2" diameter maf housing. I'm too cheap to have one made.

 

I like it too.
Good, clean mods.
Engine bay looks great for an 07.

 

I'm adding a post here with the words 'Helmholtz resonator' in it, just to end the irony of having an entire thread purporting to improve on Toyota's intake design that doesn't include those words anywhere.

-Chap

 

enlighten the ignorant here. what is a 'Helmholtz resonator'?

 

Here you go, read away.
Volumetric Efficiency and Helmholtz Resonators in an Air Intake in an IC Engine

 

For anybody who's ever wondered why the stock Prius intake connects to what looks like a weird empty milk jug under the front fender (and, for Gen 3, a second one up by the air cleaner) ... it's not because some obscure Toyota cousin in the dairy business had too many milk jugs and had to figure out what to do with them.

-Chap

 

Chamber that has tube going into/out of it. Volume of air in the chamber makes a (air) spring and air in the tube has mass. This creates system with specific resonant frequency. This amplifies the flow in that frequency. Reflex box for speaker is one example. Most of car intake manifolds use this to add torque and efficiency to curtain RPM range.

 

if Toyota did their homework, then perhaps that funny looking milk crate is beneficial... but the cai looks much cooler.

 

But not a K & N filter - pure crap!

DBCassidy