Is the intake restriction on the S4 the filter or the intake pipe?
#1
Rotary Freak
Thread Starter
Is the intake restriction on the S4 the filter or the intake pipe?
I can't afford a cone filter right now - it's on the list, soon, but for now I'm going to be pushing it to get my injectors cleaned.
Is the restriction on the S4 intake the filter, or the really skinny intake snorkel? If it's the snorkel, would drilling decent sized holes in the lid of the air box help airflow any? Or will the hot air negate any gains from the freer flow?
-=Russ=-
Is the restriction on the S4 intake the filter, or the really skinny intake snorkel? If it's the snorkel, would drilling decent sized holes in the lid of the air box help airflow any? Or will the hot air negate any gains from the freer flow?
-=Russ=-
#5
Rotary Freak
Thread Starter
Aah. Hrm. So a cone filter isn't really worth it until the engine is ported? I have enough scrap irons to practice on laying around... Winter break project, maybe. If I can dig up an engine lift. Then by summer, I might have finished breaking it in (I don't put many miles on during the school year).
-=Russ=-
-=Russ=-
#6
Lives on the Forum
I didn't say that ("cone filter isn't really worth it...")...My cone gave me a nice little "oomph" at the top end, after the entire exhaust system was modified....
#7
Rotary Freak
Thread Starter
Hm. Right now I have a racing beat cat replacement & presilencer, and some form of aftermarket exhaust (not totally sure what it is, it was on the car when I purchased it) that needs replacement in the next year or so.
Eeh, I'll probably end up not doing anything until I get a cone filter. There are far too many other things I need to fix/work on. And I hardly need the car to be any faster right now... *grumbles about the stupid speeding ticket*
-=Russ=-
Eeh, I'll probably end up not doing anything until I get a cone filter. There are far too many other things I need to fix/work on. And I hardly need the car to be any faster right now... *grumbles about the stupid speeding ticket*
-=Russ=-
Trending Topics
#10
I think I'm addicted
anyways,
just thought i drop a link (althought probably not to SAE standards)
http://www.mkiv.com/techarticles/filters_test/2/
get Apexi filter =)
read on ^_^
just thought i drop a link (althought probably not to SAE standards)
http://www.mkiv.com/techarticles/filters_test/2/
get Apexi filter =)
read on ^_^
#12
XBL** Ownicus
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Originally Posted by NZConvertible
Don't waste your money on "performance" panel filters, especially if you plan to fit a pod filter later. The filter is not the restriction, the box is.
#14
XBL** Ownicus
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Originally Posted by WAYNE88N/A
We've all done that, at one time or another. A good cone blows that setup away. Been there, done that
How well do you think it would work out if I knocked a hole in the metal under that box, and used one of the brake ducts to pull air from? I've seen this done before, but the only thing that worries me is that in the winter I'm going to get snow crammed up there and damage the cone or end up sucking water into my engine.... or maybe the water wouldn't be a big deal, if wouldn't really screw with the rotary as long as there's not particulates in it, right?
#15
It's a Hammer
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This used to be a better write up when it had pictures.
https://www.rx7club.com/showthread.p...t=cold+air+box
https://www.rx7club.com/showthread.p...t=cold+air+box
#16
I'm a boost creep...
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Originally Posted by uRizen
I don't know about that. I cut the top of the filter panel off, leaving just enough to bolt down the filter, and it has made a noticable difference.