Jump to content
SAU Community

Beginner Question (bov)

Hidden.
 Share

Recommended Posts

Hidden. Rookie

Hidden.

Posted
Posted

Hey guys... I drive a R33 Skyline, GTS-T, stock. I have had it for a couple of years and was all into it at the start, until I decided to be a moron, speed on the freeway and lose my license for a year, and since I've had 1 point for a year after my suspension, I had to be an angel and decided to keep any mods to the car as minimum as the sound system, so please don't point and boo too much.

Now that the history lesson is over the question is...

On a stock R33 Skyline, the BOV has the hose that recycles the the air back into the turbo inlet. The questions...

Does removing the hose improve the sound that comes out when you come off the throttle?

Is it bad to remove that hose (for the car that is).

(I've always wondered)

Thanks.

Link to comment
https://www.sau.com.au/forums/topic/227259-beginner-question-bov/
Share on other sites
and3_3 Proficient

and3_3

Posted
Posted

Yeh the cool pschhh sound everyone loves is a novelty. It draws so much attention to your car and makes me afraid to use heavy throttle.

I'm chasing a GTR bov atm so i can still have high boost and keep it quiet. I too have been on a suspension for the past 9 months (about to get it back!!!) and don't ever want to loose it again.

Hidden. Rookie

Hidden.

Posted
  • Author
Posted (edited)

I did read that some engines would overfuel if the hose is not attached so... I had to ask if the RB baby was one of them.

But since thats the case... Is there any way to make the noise a bit louder without massive mods? I do have a mate who's stock skyline bov sound is quite a bit louder than mine. Is there something with it or just a random freak of... nature? :P

and3_3, because my car is stock, attracting the wrong attention doesn't really bother me that much. Lifting my hood would simply make cops feel like they've wasted their time.

Edited by Hidden.
Hidden. Rookie

Hidden.

Posted
  • Author
Posted

Thanks guys and erm... Pod filters are illegal right? I do remember a mate who has a 33 tell me a while back that he has to conceal his with some aluminium cover or something. Just wanna know whether I should get a story going when I get pulled over or just smile and let em check.

babyskyline Grand Master

babyskyline

Posted
Posted
depends on where you are...im from queensland and i know your allowed a pod filter here, it just has to be supported i think....

Your allowed to have a pod filter her in queensland but it has to be fully enclosed.

benro2 Community Regular

benro2

Posted
Posted (edited)

AFAIK if you are in NSW, you can fit a pod filter as long as it's enclosed in a box. I *think* the rule is one intake mod, so that means to stay legal you can fit either a pod *or* an intercooler. Better check that one up though. I'm 99% sure about the pod though - I have a friend who got defected big time and decided to go fully legal, and he maintains an enclosed pod is legal.

After having an Apexi pod fitted to mine (non enclosed), I would definitely recommend putting it in a box because it's so damn noisy! Yes it sounds cool from outside the car but you can hear the annoying "sucking" noise inside the car way too much and most people just ask "what's wrong with your car?"... However in a box it probably halves the sound and it's quite acceptable inside.

The Apexi is definitely recommended. Proven to flow the best and also provides the best filtration (some Poms did this test a while ago, a quick search should find the test). I picked mine up off Ebay for just over $120 shipped. When you let off the throttle you will hear what sounds like a very soft externally vented BOV, which I assume is the sound you're after?

Bugger it, I don't need mine anymore, I'm going to sell my car and can't be bothered refitting it - I'll give it to you for $60 if you want - it's in pretty much perfect condition. Only had it on for about a year anyway. PM me if you're interested!

Edited by benro2
babyskyline Grand Master

babyskyline

Posted
Posted (edited)
AFAIK if you are in NSW, you can fit a pod filter as long as it's enclosed in a box. I *think* the rule is one intake mod, so that means to stay legal you can fit either a pod *or* an intercooler. Better check that one up though. I'm 99% sure about the pod though - I have a friend who got defected big time and decided to go fully legal, and he maintains an enclosed pod is legal.

After having an Apexi pod fitted to mine (non enclosed), I would definitely recommend putting it in a box because it's so damn noisy! Yes it sounds cool from outside the car but you can hear the annoying "sucking" noise inside the car way too much and most people just ask "what's wrong with your car?"... However in a box it probably halves the sound and it's quite acceptable inside.

The Apexi is definitely recommended. Proven to flow the best and also provides the best filtration (some Poms did this test a while ago, a quick search should find the test). I picked mine up off Ebay for just over $120 shipped. When you let off the throttle you will hear what sounds like a very soft externally vented BOV, which I assume is the sound you're after?

Bugger it, I don't need mine anymore, I'm going to sell my car and can't be bothered refitting it - I'll give it to you for $60 if you want - it's in pretty much perfect condition. Only had it on for about a year anyway. PM me if you're interested!

Auto Salon Magazine did a test last year some time (issue 51) with a lot of pod air filters and the apexi power intake pod, which i assume is the apexi pod filter you are talking about, and it did pretty crap. Its flow was 533.3cfm and its filtration wasnt the greatest either. For $125 you would expect a hell of a lot better.

The pod filter that actually won with a flow of 601.2cfm and a pretty damn good filtration was a 3A Racing pod filter that can be picked up on ebay for around $28.95.

Just because it is a well known brand doesnt mean its any good. I know which one i use and reccommend and i keep nearly a hundred dollars in my pocket

Edited by babyskyline
benro2 Community Regular

benro2

Posted
Posted
Auto Salon Magazine did a test last year some time (issue 51) with a lot of pod air filters and the apexi power intake pod, which i assume is the apexi pod filter you are talking about, and it did pretty crap. Its flow was 533.3cfm and its filtration wasnt the greatest either. For $125 you would expect a hell of a lot better.

The pod filter that actually won with a flow of 601.2cfm and a pretty damn good filtration was a 3A Racing pod filter that can be picked up on ebay for around $28.95.

Just because it is a well known brand doesnt mean its any good. I know which one i use and reccommend and i keep nearly a hundred dollars in my pocket

OK, here's a test comparing various pod filters, but I still don't think it's the one I was thinking about: http://www.mkiv.com/techarticles/filters_test/2/

And here's an interesting post on another forum: http://www.twincam.info/index.php?showtopic=29632

They rated the 3A Racing filter as excellent however it wasn't tested, and as you can see, the Apexi (Power Intake I presume) also rated at pretty much top of the list. However, they don't provide filtration results. Don't forget that the purpose of an air filter is to actually filter the air! :D

Obviously, the test I was looking at was a number of years old and there have been new products and developments during that time. I'm always a bit dubious about buying a brand that I've never heard of before, especially off Ebay! Although it looks like your test has recommended it so it looks like a good alternative.

BTW do you know how the Sards rate? I haven't been able to find any info on them.

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Dose Pipe Sutututu
      What brakes on R34 GTT(Europe)

      By Dose Pipe Sutututu · Posted

      Pads for R32 GTS-t, R32 GT-R non V-Spec (Sumitomo), R33 GTS-t and R34 GT-t are all interchangeable. R34 GT uses a 2x piston caliper, hence it didn't fit.
    • soviet_merlin
      WGNC34 - floor mats

      By soviet_merlin · Posted

      Checked with amayama and nope, the full S2 manual set is not available anymore. Unsurprising, but still disappointing as the ? on availability gave a glimmer of hope.
    • joshuaho96
      Tomei gasket

      By joshuaho96 · Posted

      I've heard the Tomei USA head gaskets are decent if you want to o-ring the heads but otherwise not recommended.
    • GTSBoy
      What brakes on R34 GTT(Europe)

      By GTSBoy · Posted

      The 296mm rotors are the R33 turbo brakes. The 310mm rotors are the R34 turbo brakes. The calipers are nearly the same, but not. They're the same caliper but the R34 caliper has longer legs so that it sits out far enough to go over the rotor. The pads are the same for both. When you say, "I bough tsome EBC"....did you just mean pads? Or rotors? 310mm rotors fit under 17" wheels. There may be some wheels without enough clearance though. I can't fit my fingers between the barrel of my wheel and the "corners" of my R34 calipers, but there is plenty of room behind the spokes. This is on Enkei RPF1. You can fit 324mm rotors inside a 17" wheel, but I'd be willing to bet that it would be close to impossible with the Nissan/Sumitomo caliper (using an adapter, of course), because the Sumitomo caliper is fatter than the Brembo caliper that is supposed to go on the 324mm rotors.
    • Kapr
      What brakes on R34 GTT(Europe)

      By Kapr · Posted

      Hi. Can someone tell me what brakes(and mainly WHERE) can i buy brakes on R34 GTT? I bought some EBC which SHOULD go on my car(i have GT but it has GTT brakes) but it does not fit, Brakes are "too" small(296mm) Are 310mm be good or? I have 17 inch wheel so no "big boys" but for me driving i just need one that fits and i can get here in EU/Czech.
×
×
  • Create New...