Jump to content
SAU Community

Recommended Posts

http://www.mkiv.com/techarticles/filters_t...st/1/index.html

Regarding air filters. There's always going to be differences of opinion on who make good/bad filters. Nevertheless, I think most people would agree that K&N and Apex make very good filters.

it all depends on what you want - more power/greater air flow comes at a price - poor filtration. If you read the article you'll see that there is a big difference in how well the various filters actually filter...:(

OK, for a lot of people, a filter with really poor filtration (mainly foam filters) that is likely to lead to premature engine wear, don't care since they probably wont own the car for that long.

Me personally - my car had a Trust Airinx foam induction kit. It sounded great and probably gave me a little more power. but, holding the foam element up to the light and you could clearly see through it - the holes were measurable:( so you can imagine how much crap that it must be letting into the engine...

i've since replaced the Airinx with the factory original airbox. OK, maybe it doesn't sound as good, but as to the power loss - well, with the induction system my engine was breathing in loads of under-bonnet warm air, so that's debatable...

Cheers

Dave

Link to comment
https://www.sau.com.au/forums/topic/13227-best-air-filter/#findComment-252636
Share on other sites

Here's my experience with airfilters....

I bought a Rush O2 pod, which can flow more that almost all (or I think it is all) of the jap filters. The only difference I noticed was top end, it was less restrictive than the standard ryco paper filter....

I then put the factory airbox back in, and slapped in a K&N panel filter, and I have noticed no difference between it and the pod. You dont need a pod, a K&N panel is just fine. I dont personally have numbers to back me up, but if I cant feel ANY diffence, then whats the point...

Link to comment
https://www.sau.com.au/forums/topic/13227-best-air-filter/#findComment-255050
Share on other sites

Biggest difference I have ever noticed was replacing the standard paper filter with a K&N paper filter, again though, its only high end, and marginal at best.

From what I understand, adding a second cold air intake (say from the front bar) has more effect, but requires drilling a large hole in the line, so I havent done it yet.

check this out for more info

http://www.autospeed.com/cms/article.html?&A=0009

Link to comment
https://www.sau.com.au/forums/topic/13227-best-air-filter/#findComment-255306
Share on other sites

  • 2 weeks later...

the only mods ive done is POD filter, Cold air induction, Cat back exhaust to lukey muffler. im unsure if the clutch is aftermarket but ive done so many drops and its only ever slipped once, its bloody strong. i was averageing 8.2-8.5 and then i did one nice run of 7.26, last time i tried i got 7.69 but im taking it easy now :)

Btw was heavily loaded with SUb and spare in the back im looking forward to faster times hehe

Link to comment
https://www.sau.com.au/forums/topic/13227-best-air-filter/#findComment-296936
Share on other sites

My mecahnic told me POD filters are perfectly legal, i hope they are lol, i just sold my K&N panel filter on ebay, it only did a few kilometers on it, but i realised the airbox had a ceratin vacuum spot, cos one part of the filter was so dirty and the other was so clean. My POD sits in the front bar gettin totally fresh air.

Link to comment
https://www.sau.com.au/forums/topic/13227-best-air-filter/#findComment-306942
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • One thing I can tell you is, do it properly the first time. If you encounter unexpected problems just let the car sit for a week or two if you have to get some other parts or figure stuff out.  I'd have said go and use as many OEM parts as possible but since you want to change the turbo later on a custom kit is probably the better choice. Since I have no experience with RB25 just compare parts diagrams and images before buying a line kit and it should be easy to see if it has everything you need. Amayama has very good parts diagrams and part number lists, that is what I used a bunch to figure out what I might need. And don't forget to plan ahead and possibly renew other stuff that's easy to get to while you're in there doing the turbo lines. Happy wrenching
    • Update 4:   Hi all, good news. Engine is running and all the gaskets and seals seem to be working as intended. No leaks so far, even the JB Weld seems to hold. I flushed out the old coolant a few times and put in fresh coolant, not Nissan stuff, I decided to try the Ravenol Protect FL22, they claim it works for a wide variety of JDM cars and the opinions on it by some people were pretty good. And it has the nice poison green color! And man am I glad I bought a coolant system tester earlier this year, vacuum filling works wonders on this engine. I can definitely recommend this to anyone still doing it the old school way. All you need is compressed air supply. Will have to do a small test drive as soon as I can, I removed the gauge cluster again as the tacho needle was still bouncing around a bit but it was much better than before already.  I also found some cracks on all 4 tires inner and outer sidewalls. Apparently these tires should 't be parked on for extended periods or be kept under 0 degrees during storage, which I did not know. Clearly the previous owner didn't look into those details either, he probably bought them just cause they are cool semi-slicks. I'm just wondering how tf I am supposed to reach 30-80 degree tire temperatures on the public road consistenly, these tires were never going to work for my use case. I'll probably order Continental SportContact7 ones as these are the best allround summer tire available right now and I don't think I'll need anything crazier for now. Do let me know if you have experience with various tires and which ones you recommend.
    • You have no idea how many goddamn boxes I received these past three months haha Most have been put to use by now though, luckily
    • Not going to pretend I didn't do a bit of junky work this time around, but mostly due to the fact that some things I am not willing to spend days fixing right now, like wiring. I try to do most things properly the first time around.
    • Regardless of neglect or incompetence, fixing either is tedious and annoying. Most of the neglect on my car is definitely rust. I hope I can at least pass inspections later on and they won't fail the car due to slightly corroded hardlines. I was generous with rust converter and wax and it looks ok, most lines in the rear are hard to see properly anyways.  Definitely will test them though to make sure they don't rupture under pressure, in that case the car isn't going anywhere this year.
×
×
  • Create New...