October 12, 200322 yr I'm currently running a K&N filter and a Magnaflow exhaust on my 91 Loyale. I'm thinking about opening up the air box to get some more air flow. Where exactly should I open it up? Does anyone have any pics of this mod?
October 12, 200322 yr Thiis is probably the single best mod for the SPFI EA82s. Basically, you take out the airbox and cut a hole or drill a bunch of small holes in the bottom of the airbox. Tom
October 12, 200322 yr Author Just so I have this straight... I am supposed to cut out the BOTTOM of the airbox. Not one of the sides? By bottom, you mean the side that faces the ground, right?
October 12, 200322 yr Author Well, I did the airbox mod this afternoon... I cut the bottom of the lower half completely out and I drilled a bunch of holes in either side and above the stock intake hole. The first thing I noticed is that my exhaust(Magnaflow) is louder. I also noticed that is has more pep and I'm able to accelerate and pull hills better. Over all, a definite improvement!
October 13, 200322 yr Hi All, I was thinking of doing this to my 92 Loyal, but I wondered if it would cause more problems because it would pull in the hot ait from the engine compartment, especially since the sit-box is above the front cat-converter. Wouldn't this cause the air to overheat? T.J.
October 13, 200322 yr Where can I get a Magnaflow exhaust for my 92 Loyale? Do they really help HP? How much do they cost? T.J.
October 13, 200322 yr The way your post reads to me... please correct me if I miss read it. <quote>"and I drilled a bunch of holes in either side and above the stock intake hole." </quote> You drilled holes in the upper part of the unit .. which is above the filter element? which allows air to bypass the filter to the MAF and straight into the intake???????
October 13, 200322 yr Thats how I read it as well.. if thats the case, I would recommend getting a new airbox from the yard and starting over. I will see if I can get a pic of how mine was cut out.. basically, the whole bottom of the box is gone.. with only enough left to clip the top part on. Some very nice person on the board did a fabulous job of cutting it out for me.
October 13, 200322 yr Wow.... I should start making more of my intake plates and try to sell them! I started with the drilled out stock air box method but it didn't seem to do too much...... I then made my own adapter to mount a cheap cone style filter right to the end of the MAF sensor, like how the stock air box mounts up. I can swap it back to the stock air box if needed as I made it a direct bolt on. Here's how mine looks: With this setup I feel a much more smooth power band, before it seemed to have a slight lag around 2800-3500rpm... now it's nice and smooth from idle to 5K. It also gives that vaccum cleaner/ricer car sound above 3500rpms. I just need to upgrade to a K&N filter rather than this cheap thing.
October 13, 200322 yr My favorite part about the airbox mode/cone filter approach is the "breathing" sound of the turbo between shifts..
October 13, 200322 yr Thanks Caleb:D Also just got rid of the clutch fan on the GL-10, and installed the aux fan. The throttle reponce is much quicker now. Rob
October 13, 200322 yr On the clutch fan thing, I am still undecided on whether it is a good thing to remove. I've run mine with it and without. Without the fan, it does seem to have better response. However, at least on mine which has a single-row rad, I prefer to have the much more stable temperature that the fan affords without having to turn on the electric fan. Maybe I'm just paranoid about things like engine temperature, but I think it actually is better for performance to keep the engine at its optimum temp.
October 13, 200322 yr anybody know which K&N filter would fit on an intake mod like toyofast's above?
October 13, 200322 yr I need to borrow a digital camera. My car uses an SPFI top mount hose (says Subaru FI on it) coming off my EA81 hitachi. Put a 4" chrome air cleaner adapter on it... ect. It runs good, and sounds good.
October 13, 200322 yr Author Originally posted by electryc_monk The way your post reads to me... please correct me if I miss read it. <quote>"and I drilled a bunch of holes in either side and above the stock intake hole." </quote> You drilled holes in the upper part of the unit .. which is above the filter element? which allows air to bypass the filter to the MAF and straight into the intake??????? I did not drill hole above where the filter drops in. If you look insinde the airbox, there is a hole about halfway down to the flat part. I cut out the flat/rounded bottom and drilled holes in the sides and just above the hole that brings air in from the wheel well.
October 13, 200322 yr Author Originally posted by calebz Thats how I read it as well.. if thats the case, I would recommend getting a new airbox from the yard and starting over. I will see if I can get a pic of how mine was cut out.. basically, the whole bottom of the box is gone.. with only enough left to clip the top part on. Some very nice person on the board did a fabulous job of cutting it out for me. I should have taken pictures... :-\
October 13, 200322 yr you can *see* how Calebz and I read it though true? (with that emocon at the end I guess so. anywho no worries now . yeah the proverbial pictures worth a 1000 words kinda got reenforced here. life goes on. and on. and on. and on. Energizers just can't keep up with a human.
October 13, 200322 yr http://www.expressautoparts.com sells MAF meter adapter plates for like $9 shipped for our cars i bought one and got a cheap cone filter from autozone to put on my XT6...it sounded awesome and opened up the mid a bit
October 13, 200322 yr Originally posted by trooperjeep . . . because it would pull in the hot ait from the engine compartment, especially since the sit-box is above the front cat-converter. Wouldn't this cause the air to overheat? Old (abdiadic) rule of thumb: every 10°F temp rise = 1 HP drop. Keep a cold air feed for best power. Do not use underhood air.
October 13, 200322 yr How do you modify your hood scoop (for outside air, not under hood air) to withstand intaking the elements? I have seen several "home" hood scoop mods and often wondered how they prevented this. Josh
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