Crucifix
Active member
Just installed this bad boy and honestly I have not felt any noticable improvement except at the high rev's. Seems to have a little more bite.
Just my observation.
Peter
Just my observation.
Peter
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I'm with you. The gains are probably 10-14 at the crank, but the trickle down to the rear wheels in only single digits, which isn't butt-dyno noticable. However, I too noticed the new "sucking up that air" sound, and I liked it!92ghost said:I did the K&N filter plus open air cut out on my 92. Can't really say I feel any (seat of the pants) difference and I doubt you would with any of your options listed. I have read that this combo yeilded 14 HP. I'm a little skeptical. Maybe 10 HP IMO. One thing I have noticed is you can hear the rush of air going into the filter due to the cutout box.
Wayne
It made none on my Pathfinder.Edmond said:you can put a K&N on an Escort, it ain't gonna make any difference.:L
WhalePirot said:It made none on my Pathfinder.
Edmond said:I think the cutout lid can make a kind of noticeable difference when combined with a K&N.
But like Hib said, you can put a K&N on an Escort, it ain't gonna make any difference.:L
andrewc4 said:Could you please explain what the 'cut out' is and what it looks like?
Hib Halverson said:On some cars, the use of an oiled cotton gauze (K&N) or oiled woven cotton (Green) filter is of no performance advantage because of the size of the filter compared to the engine's need for air. One of these cars is the late C4. On 90-96 cars, generally, you don't need a low restriction air filter for best performance until you get past the 450-500hp level.
Now, there always is cost advantage to these filters as they are reuseable, ie: when they become dirty, you wash them, reoil them and put them back in service. I you drive the filter a long ways, this can be a significant advantage.
Edmond said:I think the cutout lid can make a kind of noticeable difference when combined with a K&N.
But like Hib said, you can put a K&N on an Escort, it ain't gonna make any difference.:L
That's a good assumption.Hib, you've specified 90-96 cars in your post. Should I assume the same results would be gotten on a bone stock L98?
which according to my Corvette expert, does not include the "cold/ram air" setup that feeds through the front plate.Hib Halverson said:To get an idea if there was anything--short of a true ram air setup.
I wonder if anyone hears this.Hib Halverson said:I was also talking to LPE about tests they'd run on ZR-1s and they told me that in their A-B tests of a OE paper filter vs oiled-cotton there was no change. LPE further told me that was because the air filter assembly on the 90-96s supports up to 500hp.
Hib Halverson said:the other discussions here about Ford Escorts and Toyota Camrys are pointless.Hib Halverson said:I (we) were having a tongue-in-cheek moment.
Not that it matters much, but I totally agree :BOW and do the same, for the same reason.Hib Halverson said:Bottom line: with 90-96es, say up to 475hp, using the stock air filter assembly with an open-element or cut-out top and a K&N, there's no performance advantage.
That doesn't mean that all oiled cotton filters on all cars do not improve performance, it just means on this specific application they do not.
They are reuseable. When they become soiled, they can be washed, dried, reoiled and reused many times.
In the case of my ZR-1, that is the chief advantage of the Green Filter I use, today.
As always, thanks truly, Hib, for documenting the unpopular comments a few of us have made. Not all of us have access to the dynos and all that you have, and I really appreciate hearing the proof of what the rare Vette shops have shared with me. It ain't the marketing hype, but it saves me bucks.
I wish you'd chuckle more, tho.