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Yup , interesting. I must say, tho, that when I owned a '90 Subaru Loyale, it had no power over 4000 RPM. Felt like it was starved for air. It was. The airbox's air intake hole was about 1/2 the size of the hole leading to the MAF. I drilled a couple dozen holes in the bottom of the airbox, and it gained a lot of power over 4K, since it could now breathe.
I've always felt this was true (quoting from the article above):
"The stock filter will flow MORE THAN ENOUGH AIR to give you ALL THE HORSEPOWER the engine has to give."
The real culprit is the air intake. They tend to be too small for the stock pleated filter to do its job to the maximum. How bad the problem is depends on how that intake was designed. Generally they are designed to minimize intake roar, so with that prejudice, they are compromising designing for power to some degree. A few holes in the lower airbox piece can only help breathing at higher RPMs; it will have no effect on lower-RPM driving for max MPGs.Last edited by TominMO; 08-12-2013, 04:50 PM.90 Festy (Larry)--B6M (Matt D. modified B6 head), header, 5-speed, Capri XR2 front brakes, many other little mods
09 Kia Rondo--a Festy on steroids!
You can avoid reality, but you can't avoid the consequences of avoiding reality--Ayn Rand
Disaster preparedness
Tragedy and Hope.....Infowars.com.....The Drudge Report.....Founding Fathers.info
Think for yourself.....question all authority.....re-evaluate everything you think you know. Red-pill yourself!
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Did you advance your timing at all on your aspire Tom? I was looking into possibly doing this, but I'm not sure how to go about it correctly, or if I should.Last edited by mikeyjd; 08-12-2013, 05:56 PM.Comment
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Yes, it is advanced a little, and I run premium. I tried going back to stock advance, but it was too boring!Originally posted by mikeyjd View Post90 Festy (Larry)--B6M (Matt D. modified B6 head), header, 5-speed, Capri XR2 front brakes, many other little mods
09 Kia Rondo--a Festy on steroids!
You can avoid reality, but you can't avoid the consequences of avoiding reality--Ayn Rand
Disaster preparedness
Tragedy and Hope.....Infowars.com.....The Drudge Report.....Founding Fathers.info
Think for yourself.....question all authority.....re-evaluate everything you think you know. Red-pill yourself!
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How much did you advance it? Did you use a tool or just guess? Do you have to run premium to gain the advantage of it?Originally posted by TominMO View PostComment
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1. I forget. Not that much tho. I'll check and get back to you.Originally posted by mikeyjd View Post
2. Used a timing light.
3. Premium is just a precaution against detonation due to the extra timing. Possibly mid-grade would be enough, I'm just being cautious.90 Festy (Larry)--B6M (Matt D. modified B6 head), header, 5-speed, Capri XR2 front brakes, many other little mods
09 Kia Rondo--a Festy on steroids!
You can avoid reality, but you can't avoid the consequences of avoiding reality--Ayn Rand
Disaster preparedness
Tragedy and Hope.....Infowars.com.....The Drudge Report.....Founding Fathers.info
Think for yourself.....question all authority.....re-evaluate everything you think you know. Red-pill yourself!
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