ok, i was thinkin the other day, since i got a vulcan and there are very little perform. mods for my car, i was wondering about the intake. is it possible the cut open the back of the box so that the air filter is exposed on the back side of the air box? i want to chop off a 6x8 section and remove the piping to the air silencer. here are some divinci style pics of what i want to do. is this plosible?
Air Box Mod
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G
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·If you're talking about the back side as in bypassing the filter I would not recommend that at all. You still run a risk of sucking something into the engine.
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If you are going to remove all that piping, etc. you might as well get one of the kits that are frequently sold on ebay an at duratecperformance.com that give you a CAI. well, actually a HAI b/c it's still in the engine bay. But it will convert you to a cone filter with an adaptor to connect it right to that MAF. You would probalby want to look at using some kind of tubing to bring cold air to the cone filter. This is typical of what several people are doing.
He's not talking about bypassing the filter, he's talking about cutting most of the bottom of the air box off. This will give you less resistance for the incoming air, but now the incoming air is hot engine bay air vs cool air in the fender. You're right about chopping off part of the stcok air intake, but cut it off in the fender, that way you don't have to suck in hot air. Just take off driver's side wheel, remove the black fender splash, and hack off the stock intake restricter/silencer. That way you get less restriction AND you keep the factory CAI. And K&N makes a factory replacement filter, I think they call it a filter charger or something like that. I think this is all in the mods section somewhere.
G
Guest
·You could do something known as "Porterization" to the airbox, like this:
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8 Posts
I've done this mod. I read in a mustang mag that there was allot of discussion about intake air temps from ingesting hot under hood air. this person installed a battery operated home outside air temp sensor next to the filter to read air temps under the hood while driving. What he found was that in traffic the under hood temp was high, like 140f. But while driving at over 30 the temp was like two (2)degrees warmer then the outside temp. When I removed the intake silencer and pipe from my fender and left the whole in the to the fender open, and cut the entire forward side to the lower air box open (I could see the entire side of the paper filter when installed and the inside bottom of the air box) it worked great. By looking at the clearance with the hood closed it left a unobstructed path for fender air from the hole where the silencer/pipe was to the now wide open air box. I felt the difference the first time I drove it, and I could hear it gasping for life too, very loudly under heavy throttle. The ONLY drawback was if I idled for a long period of time, like at a light in the dead of summer it was a little sluggish pulling away. But with 1/3 throttle away from the light you could feel the clean air hit the MAF and the IAT sensor and it start to pull harder from the IAT sensing the colder air and advancing the timing before it shifted to second. It took about an hour to remove the silencer and to cut the side of the air box out with a hacksaw blade holding it with a towel after drilling a hole in it to put the blade in to start cutting. Everybody here calls it a "hot air intake". But with only a two (2) degree difference from outside hood temps, (figure 10, 20, 30 MPH+ air coming into the engine compartment) I didn't see how this wouldn't work, and I was right, it works great. I know it sounds sort of cheesy, but it doesn't look bad and it's FREE and it works with the paper filter or a K&N. Scott.
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