Re: Don't swiss cheese your Airbox

["Casey Webster" <tinfool@home.com>]

Thanks Randy.......Well I'm glad I did this to my "spare" car and not ruined
the airbox from the good car.  But it does sound cool though....and when
people turn their heads, they see a high riding, rusty old rocco.  *L*

Where is the best place to put the inlet  hose for the air intake?

right now, (on the black roc) the hose is behind the front spoiler and it's
such a small hose.  The car sounds like it has an exhaust leak at the front
when I revv it, but it's the inlet hose making all the noise.  It just
doesn't seem to be big enough to take in all the air that the engine wants.

The PO did a bunch of other engine mods to the car, but nothing to the
intake.....I have since added a K&N, but I think it just needs more air.

Casey
84 Black Roc
84 Silver Winter Roc


> Casey,
> I'll have to disagree with you on this one.:)
> It will sound real cool and turn heads, and when the engine is cold you
> might find a few ponies. Once the engine is warm you will actually loose
hp,
> but it will still sound cool. I know this from experience swiss cheesing
my
> own airbox. There was also a dyno test in EC about a year ago where a
Jetta
> II was Dyno'd three times, once with the stock setup, once with a standard
> P-flo, and once with the P-flow in a box seperated from the engine and fed
> air from the front of the car. The boxed P-flo did the best, next was the
> stock setup, and lowest hp output was from the exposed P-flo.
> This is the reasoning. The colder the air, the more oxygen, and the more
HP.
> The best way I have found is to keep the airbox sealed except the inlet
> hole, put a flexible hose on the box and run to the front of the car
> somewhere. For a while I pulled out my high beam light, attached the
> flexible tubing to the airbox, attached a HVAC reducer from a plumbing
store
> to the end of the flexible tubing, attached the reducer to the back of the
> headlight bucket, and used a wire mesh grille inserted into the headlight
> retainer ring to keep out debri.
> This method is not as loud but it actually works. If you live in a rainy
> area be sure to put drain holes at the lowest point of the flexible tubing
> so that you don't end up with water injection and switch to a K&N or other
> oil coated foam filter.
> I have heard of some people opening up the airbox on the inner fender side
> and drilling holes in the inner fender to get air from there, and have
also
> heard of drilling holes in the bottom to get air coming up from between
the
> bumper strut housing and the inner fender. Just try to keep the box
sucking
> the coldest air you can.
> Hope this helps.
>
> Randy B.
> Cosmos 81 Scirocco S - soon to be 2.0L 16V
> Mars 81 Scirocco S - t t 1847cc



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