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#16
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SVXASH:
One warning: Your intake is different from Chiketkd's because the intake opening is in a different place. By cutting the tube, Chiketkd's intake still pulls air from high in the fender. Your intake tube is very low. If you drive through a puddle or heavy rain, you could suck a large amount of water into your engine- VERY BAD. I also run a low intake, with a fabricated ram box. But I NEVER drive in the rain. I will be raising it soon. I'll be modifying the front bumper to bring it through.
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'92 LS-not-so-L: the "SVreX"- Saved from a crusher, an SVX racer built by home schooled students for less than $2000 (including purchase price). 13.8 second 1/4 mile. Autocrossing monster!! '92 LS-L Claret: '01 RS 4:11 5-speed, Exedy organic, lightened flywheel, and Koni/ GC |
#17
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Agreed. Svxash, I fashioned the upper part of my intake resonator to do what svxhunter mentioned - draw cool air from higher up in the fender. If you look at the bottom of the passenger side turn signal, you will see a 1" gap in the rubber insulation between that light and the passenger side headlight. This is the location where Subaru had the input end of the intake resonator collect cold air - and when I modifed my intake resonator pipe I made sure it lined up with that small hole.
About trying to draw air from the lower part of the fender, read the linked paragraph from the SVX FAQ page and draw your own conclusion: SVX FAQ Page - Intake Resonator -Chike Quote:
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"Wise men talk because they have something to say; fools, because they have to say something." - Plato 2013 Cosmic Blue 5spd Evo X GSR 2006 Galaxy Gray 6MT RX-8 (sold) 2006 Steel Gray WRX TR (sold) 1996 Brilliant Red SVX L (sold) |
#18
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Resonator
I truly hate to say this, but the Subaru engineers made this box to increase the plenum of "still" air available to the intake. Yes, in the neverending pursuit of MORE power, I have removed and modified the intake, more times than I can say. But if you study thermodynamics, and airflow you can improve on the original idea, but it means insulating the plumbing from heat, and introducing ambiant temp air, preferably under presure, as in RAM AIR, there are power gains available. Tom
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#19
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I'll have to look into this further. There is a gap on both the driver's side and the passenger's side by the turn signals. Where exactly does the air enter the wheel well? I didn't notice any large openings anywhere. Does the small gap cause a low pessure area in the wheelwell thus drawing air up into the well?
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#20
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That small gap is on both the driver's and passenger's side of the car. However, the gap on the passenger side is what feeds the wheel well where the intake resonator is located.
At speed, the airflow directed at the car is split at the front bumper causing an area of high pressure to be formed around the area of our radiators. As a result, some air will be forced into that 'gap' as the inside of the wheel well will be at a lower pressure. -Chike Quote:
__________________
"Wise men talk because they have something to say; fools, because they have to say something." - Plato 2013 Cosmic Blue 5spd Evo X GSR 2006 Galaxy Gray 6MT RX-8 (sold) 2006 Steel Gray WRX TR (sold) 1996 Brilliant Red SVX L (sold) |
#21
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It just seems like such a small area to have air drawn in from. Some air might enter there but not enough to feed the engine. If that were the only place where it entered then our intake tube would only need to be 1" or so. I'm thinking that the majority comes from around the grill opening.
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#22
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Some air might come from the grill opening, but that 'small area' is where the input end of the intake resonator was placed. When a high pressure zone is created at the front of a car, you'd be surprised at how much air will flow into a low pressure zone through a small hole like that...
-Chike Quote:
__________________
"Wise men talk because they have something to say; fools, because they have to say something." - Plato 2013 Cosmic Blue 5spd Evo X GSR 2006 Galaxy Gray 6MT RX-8 (sold) 2006 Steel Gray WRX TR (sold) 1996 Brilliant Red SVX L (sold) |
#23
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Quote:
1. to quiet the intake noise 2. if any water was sucked, the pipes are split and the water being heavier would fall to the bottom of the chamber and drain out through the drain holes. 3. to maybe increase velocity by coming down the inlet stack? |
#24
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The stock resonator may serve a few different purposes, but the main reason for that 'gap' in the pipe is for the production of an induction sound or 'resonance' when air moves over it quickly (kinda like blowing air over the top of a coke bottle).
The reason why I cut my resonator at the top and have my intake collect air from high in the fender, is to avoid any water from ever getting into my airbox. I've driven through several storms since doing this mod, and not a drop has gotten in there. With your set-up, you run a higher risk - but even then, I doubt you'll see any water in your airbox. -Chike Quote:
__________________
"Wise men talk because they have something to say; fools, because they have to say something." - Plato 2013 Cosmic Blue 5spd Evo X GSR 2006 Galaxy Gray 6MT RX-8 (sold) 2006 Steel Gray WRX TR (sold) 1996 Brilliant Red SVX L (sold) |
#25
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what if you were to weld something like sheet metal just below the stock tube after removing the resonator and tubing and make that an enclosed system?
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#26
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Not quite sure how you want to arrange the sheet metal to make it an 'enclosed system'???
This was the airbox mod that SVX-FF did to his '92 to make the Intake Resonator a closed system... -Chike Quote:
__________________
"Wise men talk because they have something to say; fools, because they have to say something." - Plato 2013 Cosmic Blue 5spd Evo X GSR 2006 Galaxy Gray 6MT RX-8 (sold) 2006 Steel Gray WRX TR (sold) 1996 Brilliant Red SVX L (sold) |
#27
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A couple of people...
...have asked me for instructions on removing the intake resonator, so I figured it'd be worthwhile to post them for everyone.
1) Pop the hood and jack the car up and remove the passenger side wheel. 2) Right around the center of the wheel well, there will be a small gap in the fender lining where it attaches to the side of the car. Using your fingers (or car keys), pry the fender lining off. Pull it completely out and away from the side of the car so that you'll have an unobstructed view of the back of the resonator... http://www.subaru-svx.net/photos/fil...etkd/17743.jpg 3) With a 10mm wrench, loosen and remove the bolt directly infront of the airbox inside the engine bay. This bolt attaches the top of the resonator to the fender wall. 4) With a screw driver (think it's a phillips head) remove the bottom of the under tray directly beneath the resonator completely. 5) Using the 10mm wrench, loosen the two remaining bolts connecting the resonator to the frame. 6) Pull the resonator out completely! -Chike
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"Wise men talk because they have something to say; fools, because they have to say something." - Plato 2013 Cosmic Blue 5spd Evo X GSR 2006 Galaxy Gray 6MT RX-8 (sold) 2006 Steel Gray WRX TR (sold) 1996 Brilliant Red SVX L (sold) Last edited by Chiketkd; 07-22-2004 at 12:10 PM. |
#28
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__________________
David B. SVXipedia @ SVX-IW.COM -- SVX Information Warehouse 2.0 coming...eventually! Ebony 1992 SVX LS-L 5 spd Koni/GC Stebro 187k miles RIP (Rust In Pieces) 1993 SVX 5 spd Koni/GC Stebro Polyurethane bushings still available! |
#29
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Thanks! I fixed it...
-Chike Quote:
__________________
"Wise men talk because they have something to say; fools, because they have to say something." - Plato 2013 Cosmic Blue 5spd Evo X GSR 2006 Galaxy Gray 6MT RX-8 (sold) 2006 Steel Gray WRX TR (sold) 1996 Brilliant Red SVX L (sold) |
#30
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haha,
Oh man, I wish I had read this entire thread, I just spent a LOT more time than I needed to doing this!, haha, well, I managed to take off the resonator without jacking the car up or taking my wheel off, I just got done, so Im unable to talk about results yet, but here's to the best!
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1992 Midnight Black LS-L - Sold 3/3/06 1991 Toyota MR2 - Sold 11/27/07 1992 BMW 325i - Tokicko Suspension |
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