Hi guys,
Just fitted a new throttle body and K&N pod filter to my injected VN 5.0lt
I can notice a slight power improvement ,more so in throttle response BUT the hissing noise coming from the pod filter is killing me
any one have the same problem or recommodations .
thanks
anyone got a pod filter on a injected 5.0lt
Started by
tsn007
, Jul 23 2009 04:16 PM
15 replies to this topic
#1
tsn007
-
- Members
-
- 1,022 posts
Forum Fixture
- Name:Tony
- Location:LIVERPOOL, NSW
- Car:LX hatch, LX sedan
- Joined: 25-April 07
Posted 23 July 2009 - 04:16 PM
#2
Statler
-
- Administrators
-
- 6,326 posts
Heckler Extraordinaire
- Name:Col
- Location:Mackay Qld. Whitsundays for all you back packers!
- Joined: 20-May 06
Posted 23 July 2009 - 04:25 PM
Yep!
Either live with it or fit a HSV intake.
Either live with it or fit a HSV intake.
#3
_mello92_
_mello92_
-
- Guests
Posted 23 July 2009 - 04:49 PM
I think I read about how to fix this in one of the million car related articles Ive read.
If I remember, Ill get back to ya.
If I remember, Ill get back to ya.
#4
benno81
-
- Members
-
- 709 posts
Forum Fixture
- Joined: 30-September 08
Posted 23 July 2009 - 04:55 PM
yeah my old man had same prob on his car so we moved battery to otherside and ran the air box with a k and n filter in there now cant hear it
#5
mitchg
-
- Members
-
- 3,111 posts
The guy with the Torailer
- Name:Mitch
- Location:Ingleburn, NSW
- Car:Was a '77 LX V6 Torana + Torailer now VX SS
- Joined: 19-May 07
Posted 23 July 2009 - 05:15 PM
Same thing happened with my V6 when I put the pod filter on. Was so loud I couldnt hear the stereo. Back to the air box for me!!
#6
_Herne_
_Herne_
-
- Guests
Posted 23 July 2009 - 05:18 PM
If you have a good exhaust you don't notice the pod filter sucking 
Herne
Herne
#7
_XU1-043_
_XU1-043_
-
- Guests
Posted 23 July 2009 - 05:22 PM
yep all pod filters are noisey on descent size motors, i had one on my old V6 commodore wich was pretty loud so when it came to putting one in my torana (injected 5L) i used the standard airbox cut the base out so it would fit low enough to fit in the engine bay and used a K&N panel filter.
#8
orangeLJ
-
- Members
-
- 10,261 posts
Yes, yes I do post alot!
- Joined: 02-May 06
Posted 23 July 2009 - 06:07 PM
Honestly, pod filters offer no performance gain over a decent panel filter.
If I get the time tomorrow, I will dig up a few back to back tests that show it.
the only time I could see it making a difference is if its tucked in a cold air inducting position (ie behind a vent, or behind a headlight hole etc etc)
If I get the time tomorrow, I will dig up a few back to back tests that show it.
the only time I could see it making a difference is if its tucked in a cold air inducting position (ie behind a vent, or behind a headlight hole etc etc)
#9
_nial8r_
_nial8r_
-
- Guests
Posted 23 July 2009 - 06:28 PM
in my old VNSS i got a 4inch hole saw or 90mm and cut a hole throught the base of the air box and put a 45 degree PVC pipe fitting in the whole and attached a ag line and attched the other end to the bottom of my spoiler and it always had good cold air and just ran an o2 rush panel filter and worked perfect 
#10
View GaragePosted 23 July 2009 - 06:40 PM
Exactly, and if you have it set up with a proper box or somehow sealed off to cold air you'll kill two birds with one stone - noise and performanceif its tucked in a cold air inducting position
#11
_doucmyuc_
_doucmyuc_
-
- Guests
Posted 23 July 2009 - 11:05 PM
Its depends on the type of filter that you use. 3A Racing filters have seen 1-3% dyno gain for me typically in the past, and ive foudn the K&N to be expensive with no real power gain. The quality of filtering could be a different story between the two with the K&N - for all i know might have the best filtration element in the world!
If you use a typical pod with mesh/weave element in a cone style wthey will always be noisy on idle and low rpm. If you move to a foam type with large mesh weave backing their quite quiet on idle. Theres a pod style filter developed in the US, that runs an alluminium bellmouth at the end of the filter before it runs into the intake, and this curves the airspeed and gives its a gradual slow down and avoids the typically noisy hissssing sound.
If you use a typical pod with mesh/weave element in a cone style wthey will always be noisy on idle and low rpm. If you move to a foam type with large mesh weave backing their quite quiet on idle. Theres a pod style filter developed in the US, that runs an alluminium bellmouth at the end of the filter before it runs into the intake, and this curves the airspeed and gives its a gradual slow down and avoids the typically noisy hissssing sound.
#12
TerrA LX
-
- Members
-
- 14,241 posts
Fulcrum Fixture
- Location:Sid 'n' knee
- Joined: 31-May 06
Posted 24 July 2009 - 08:51 AM
Just pretend you have Webers.
#13
ls2lxhatch
-
- Members
-
- 5,335 posts
- Location:Perth
- Car:LX Hatch
- Joined: 29-May 06
Posted 24 July 2009 - 01:01 PM
A paper element filter is significantly more efficient than a K&N filter in terms of air filtration.The quality of filtering could be a different story between the two with the K&N - for all i know might have the best filtration element in the world!
Air Filter Test
In my opinion K&N filters are more trouble than they are worth for a regularly driven street car. Is the small HP gain really worth the extra maintenance and wear? How many people clean and oil their K&N filter regularly?
I do have a K&N filter for my LS2 but only because I could not find or make a paper element filter system that would fit.
Edited by ls2lxhatch, 24 July 2009 - 01:09 PM.
#14
TerrA LX
-
- Members
-
- 14,241 posts
Fulcrum Fixture
- Location:Sid 'n' knee
- Joined: 31-May 06
Posted 24 July 2009 - 01:59 PM
I have heard stories where the oil from the element is getting sucked thru and coating sensors in the intake system and giving trouble.
#15
_doucmyuc_
_doucmyuc_
-
- Guests
Posted 24 July 2009 - 06:35 PM
I have heard stories where the oil from the element is getting sucked thru and coating sensors in the intake system and giving trouble.
That can happen, typically when the filter is over-oiled!
#16
_Baronvonrort_
_Baronvonrort_
-
- Guests
Posted 24 July 2009 - 07:00 PM
I doubt that a car would produce more power with a pod filter clamped to TB over a standard airbox and find it harder to believe anyone would notice a power increase.
Stranger things have happened and track test days have seen drivers comment on changes that we told them we did when we in fact did nothing.
A pod filter will draw air that has been warmed as it passes through radiator which is around 90 deg C so the usual air density losses that reduce power and something few realise is warmer air temps can cause detonation and most injected cars reduce ignition timing with warmer air temps which probably costs more power than air density alone and some have fuel enrichment maps to help with higher temps.
I have a graph where someone has data logged intake temps with a 5.0 holden commondore that has a factory cold air box and even with that effort the lowest intake temp is about 65 deg C at 100 kph and this rapidly creeps up to 90-105 deg C when stationary.
I cant see a pod filter ever getting intake temps below 95-100 deg c when clamped to TB.
The long alloy intake runners do a good job of pre heating intake air so cold air induction will be far superior to any pod clamped to TB.
Stranger things have happened and track test days have seen drivers comment on changes that we told them we did when we in fact did nothing.
A pod filter will draw air that has been warmed as it passes through radiator which is around 90 deg C so the usual air density losses that reduce power and something few realise is warmer air temps can cause detonation and most injected cars reduce ignition timing with warmer air temps which probably costs more power than air density alone and some have fuel enrichment maps to help with higher temps.
I have a graph where someone has data logged intake temps with a 5.0 holden commondore that has a factory cold air box and even with that effort the lowest intake temp is about 65 deg C at 100 kph and this rapidly creeps up to 90-105 deg C when stationary.
I cant see a pod filter ever getting intake temps below 95-100 deg c when clamped to TB.
The long alloy intake runners do a good job of pre heating intake air so cold air induction will be far superior to any pod clamped to TB.
Edited by Baronvonrort, 24 July 2009 - 07:00 PM.
1 user(s) are reading this topic
0 members, 1 guests, 0 anonymous users
