HSV VY Airbox

[bidzr]

Hey everyone

This might have been covered but I did a search and couldnt find what I was looking for. I was just wondering what the exact difference is between the VY HSV Airbox and a VY SS Airbox? Will putting a HSV airbox in a VY SS be worth it and what are the benefits?

Cheers
Jase

[DaveHAT]

With the exception of VTII and VXI which had the IAT in the airbox lid ... the top half of the airbox is the same.

The bottom half of the airbox is where they're different. HSV has the factory made "2 hole mod" scoop built into the bottom.

Benefits ... more "cool" air can equal more power. The additional induction noise is a bonus.


HSV airbox:
http://forums.justcommodores.com.au/attachments/vz-holden-commodore-2004-2006/28596d1161266546-hsv-intake-hsv-airbox.jpg

VYSS or other LS1 airbox (with 2 hole mod):
http://i6.photobucket.com/albums/y233/smitty1955/Car%20Pics/DSC00411.jpg

[bidzr]

Thanks for the info mate that clears things up a bit more for me.
So if I was to buy a HSV airbox and a 4" maf pipe this would make a little bit more power? Also any difference in the HSV VYI and VYII airbox? I didnt want to go otr or mafless so do you think this is my best option?

Cheers

[bidzr]

Can you even have/fit a maf with this set up? I have read a couple of articles that say you cant?

[davo_94]

yes you can run a maf with this.
I wouldnt bother with the hsv air box. i have done the 2 hole mod with the manaro cai.
Very happy with the induction noise now.

[bidzr]

Ok no probs. How much can you pick up a monaro cai for? Can you just get one from holden? What size pipe did you use for the 2 hole mod?

Cheers

[wadevzss]

You need 3 parts. Just priced 2 at the local dealer.

92096849 DUCT $20.07
92102700 SEAL $ 4.02


Also need

92102689 HOSE Probably only about $5

So about $30 for the lot.

[wadevzss]

I also have the HSV VY Series 2 airbox in my VZ SS. Originally i knocked out the 90mm cap and ran the normal VZ snorkel up to the shroud. Now i have put the cap back in to see how it goes with it.

Was even thinking of converting it using the MCAI, as maybe that would be the better option.

[SS Enforcer]

Can you even have/fit a maf with this set up? I have read a couple of articles that say you cant?

They Vy HSV's series II's come standard with maf's so the articles are crap.



I also have the HSV VY Series 2 airbox in my VZ SS. Originally i knocked out the 90mm cap and ran the normal VZ snorkel up to the shroud. Now i have put the cap back in to see how it goes with it.

Was even thinking of converting it using the MCAI, as maybe that would be the better option.

Nothing wrong with the HSV setup and put the snorkel back on and a MCAI sin't going to work better than the HSV setup in a bolt on car.

A Duspeed otr is the best option though :)


cheers

[wadevzss]

So the snorkel wouldnt be sucking too much hot air from the normal radiator shroud position in the VZ ?

[Wonky]

They Vy HSV's series II's come standard with maf's so the articles are crap.

Nothing wrong with the HSV setup and put the snorkel back on and a MCAI sin't going to work better than the HSV setup in a bolt on car.

A Duspeed otr is the best option though :)


cheers

Tend to agree! :yup: I had a VY HSV airbox on my VZ SS with MAF tune (from G&D back then). Can't talk much about power increase as back then I wasn't as into that stuff as I am now but it sounded good! :)

[SASLS1]

On my VZ SS I just bought the MCAI shroud and seal $22, don't need the duct, as its just a std snokel that has most of the upper section cut off. Bought a length of 90mm pvc pipe from bunnings $12, made up 2 short pipes with bellmouths on them (bit of heat and a glass bottle to mold them).

Cut extra 90mm hole in airbox (which is totally below airfilter), then cut two holes in the MCAI shroud, one for the extra 90mm duct, and another smaller one for the radiator overflow tank to stick up thru.

Install MCAI shroud first, reinstall radiator tank neck up thru shroud, then install lower airbox, insert 2 short 90mm bellmouth ducts thru shroud into airbox, install filter and top of airbox, done.

While I was at it I de-screened the MAF, and also made up a 100mm Ram air duct out of a flexable expandable aluminium flue duct also from bunnings $17, and a 90 deg pvc elbow $3 (bellmouthed this also). Elbow sits in corner of lower grill opening (painted black can hardly see it, and didn't cut bumper bar at all). The flexable duct then goes outboard and up under headlight and comes out infront of MCAI shroud. Being flexable can shape duct really well.

Works great, alot more induction roar, only other mod I've done is full exhaust, only cost me approx $55 including my ram air duct.... NOT $600++ for an over priced OTR

I also fitted the MCAI shroud to my VXSS years ago, and it was easier to fit as there was no radiator tank neck in the way.

[bidzr]

Thanks for all replies! Ok, from the above comments the 2 hole mod and HSV airbox are basically the same, probs the only difference being the price. How much would you guys pay for a HSV airbox? Also what size is the maf pipe on a VY HSV?
Cheers

[aratic]

You want to make sure what your buying. I bought a HSV Y2 airbox off a forum member and its no different to the std SS one. Didnt bother me as its just a spare, but something to keep in mind

[bidzr]

You want to make sure what your buying. I bought a HSV Y2 airbox off a forum member and its no different to the std SS one. Didnt bother me as its just a spare, but something to keep in mind

Thanks mate. So the one you bought doesn't have the factory 2 hole mod in the bottom half of the airbox? Pics?

[aratic]

Nah its just got the single inlet, 90mm from memory

http://img98.imageshack.us/img98/4817/img0635p.jpg

[bidzr]

aratic - Hmm confused. So this cant be a HSV YII airbox then?

Does the HSV YI have 2 hole mod?

[VXSS346]

As aratic said, that's just a VYSS/Monaro intake.

The VYII HSV box is cut out out much larger on the bottom right corner and a different shaped shroud is fitted. As per pics in post 2.

The 2 hole mod is purely an aftermarket mod on these intrakes.
The only cars to have 2 holes stock were non HSV VT/VX LS1's, but they had 2 crappy restrictive intake pipes fitted to them, :spew: not an intake shroud like the pic above.

Hope that helps. :)

[aratic]

I know for a fact the guy I bought it from took it off his V2 285kw, but maybe a std SS airbox was put in it before he bought it? Not sure :confused:

[bidzr]

As aratic said, that's just a VYSS/Monaro intake.

The VYII HSV box is cut out out much larger on the bottom right corner and a different shaped shroud is fitted. As per pics in post 2.

The 2 hole mod is purely an aftermarket mod on these intrakes.
The only cars to have 2 holes stock were non HSV VT/VX LS1's, but they had 2 crappy restrictive intake pipes fitted to them, :spew: not an intake shroud like the pic above.

Hope that helps. :)

Thanks, think I'm gettin the idea now:). Do you know if there is any difference between the HSV VYII airbox and HSV VYI airbox? Cheers

[Wonky]

I know for a fact the guy I bought it from took it off his V2 285kw, but maybe a std SS airbox was put in it before he bought it? Not sure :confused:

I'd say so as my HSV airbox was like the one pictured in post #2.

[SS Enforcer]

So the snorkel wouldnt be sucking too much hot air from the normal radiator shroud position in the VZ ?

No because when you moving it's getting cold air.

[Wonky]

How much would you guys pay for a HSV airbox?

I paid about $45 for mine new (about 4 yrs ago) from a former sponsor who like Holmart does used to buy surplus parts in bulk from Holden/HSV to sell on. I also saw them new on eBay for around $80 around the same time.

[bidzr]

I paid about $45 for mine new (about 4 yrs ago) from a former sponsor who like Holmart does used to buy surplus parts in bulk from Holden/HSV to sell on. I also saw them new on eBay for around $80 around the same time.

So can these be puchased direct from holden/HSV? Have had a quick look on ebay and searched a few sites with no results as yet, will keep looking. Recommend any sites?

[Wonky]

So can these be puchased direct from holden/HSV? Have had a quick look on ebay and searched a few sites with no results as yet, will keep looking. Recommend any sites?

Not sure. The former sponsor was I think owned by Motorfield so I'd check them and Holmart. Alternatively just do your own 2 hole mod.

[wadevzss]

The VY Series 2 HSV Airbox bottom is over $300 purchased from Holden. And even then you need a VIN number from a HSV to get it, unless you know the spare parts dude.

I brought mine off a forum member for $50.

Best to try to get one of here second hand if you can.

[VY5.7LTR]

I have a VY series 1 LS1 and we did the 2 hole mod in about 15mins with a holesaw and some patience....

[bidzr]

$300 bit steep. Will try to find one for sale on here or 2 hole mod sounds like the go. Thanks to all for your replies, much appreciated!

I would like to clear one more thing up while I'm on the subject. Is having an OTR legal if I keep maf?

[Wonky]

Apparently different states have differing requirements but the consensus is MAF OTRs are OK. However, it also apparently depends on the type of filter. If it's a filter that requires oiling it must be enclosed i.e. oiled filters are not allowed to be exposed.

That's my interpretation from all I've read on here but may not be correct???

[wadevzss]

Which doesn't help much, when pretty much all otr's filters are not enclosed. Maybe only the VCM VE one? Even insurance for these small issues and that of mafless tunes can be affected even when these are noted on the policy. It is a way for the insurance to void your cover unless you can pretty much definately say that it was of no way adding to the chances of that happenning to you. And the onus is on you to prove it, because in all the PDS of insurance, you must ensure that the car is roadworthy and all mods are legal. Rang Shannons yesterday, and they said they would note all mods, but if they weren't legal then they wouldnt say whether i would be covered, he said it would definately be a "grey area".

[Wonky]

If your car is unroadworthy at the time of a collision (according to various RACV etc reports I've read at least 30% of cars on the road wouldn't pass a RWC) then I believe the insurer has to be able to prove that it contributed to the accident before they can reduce/refuse a claim. In the case of bald tyres that wouldn't be hard (we as enthusiasts as probably much less likely to have bald tyres than your average schmuk) but would I think be almost impossible to prove a mafless tune contributed. If they could I suspect you'd be in the realms of dangerous driving which would wipe a claim anyway (something I wasn't aware until someone I knew was potentially in that situation).

[bidzr]

Ok at least that gives me an idea of what potentially is or isnt legal. I was trying to remain completely legal so maybe I'll stick with HSV airbox, retain maf and tune. Not looking to make massive power so i guess it doesnt really matter. I've heard some alright things about the k&n cai might even go down this track and from there website apparently are legal, anyone had experience with these?

[whiteknight2211]

Apparently different states have differing requirements but the consensus is MAF OTRs are OK. However, it also apparently depends on the type of filter. If it's a filter that requires oiling it must be enclosed i.e. oiled filters are not allowed to be exposed.

That's my interpretation from all I've read on here but may not be correct???

In what respect do you mean keeping the filter oiled?

I've had aftermarket "washable" filters before that include displacement oil as part of the cleaning process - with emphasis on removing the water from the filter element before reuse.

We're getting of track with the topic, however does anyone have a link to any states requirements on air filters?

[wadevzss]

In QLD, they have to be well engineered, fireproof, enclosed so as not to allow anything in to cause engine problem, must retain use of all emissions equipment in operating condition (so have to retain functioning maf).

[.-silent-.]

Why not just go OTRCAI?

[VL Executive]

Ive just bought a HSV Airbox, bottom half only off Ebay. Before anyone says why bother go for OTRCAI, I want to keep the stock look for now, and I dont really like the look of OTRCAI's, except for the Dus ones. But anyway might go the OTRCAI Route later on down the track.

Question is, I spose ill have to modify the shroud from my stock SS airbox / cut a bit out of it to be able to fit it to the HSV airbox.

[aratic]

I should be a straight fit?

[Wonky]

Ive just bought a HSV Airbox, bottom half only off Ebay. Before anyone says why bother go for OTRCAI, I want to keep the stock look for now, and I dont really like the look of OTRCAI's, except for the Dus ones. But anyway might go the OTRCAI Route later on down the track.

Question is, I spose ill have to modify the shroud from my stock SS airbox / cut a bit out of it to be able to fit it to the HSV airbox.

As aratic said, from memory (4+ yrs ago) the tops are the same.

[VL Executive]

Sorry guys, This is the part I mean. I assume this is the shroud? Pardon the dodgy MS paint alteration.

http://img.photobucket.com/albums/v157/87vlexec/HSVAirbox.jpg

Or dont you need that piece at all with the HSV Airbox. Does it go straight in without it.

Sorry for the ameture type questions. :confused: :)

[tuffRX]

Take the shroud out mate, the HSV lower airbox has its own built into the front of the airbox. It fits up fairly well behind the headlight.

[VL Executive]

Sounds good. Thanks tuffRX.

[SS Enforcer]

That pic looks like a Monaro airbox and works very well if the hole is made bigger. I am not sure what HSV's they put em on if any.


Just open it up to 4" for a good performing cold air intake.

[73LJWhiteSL]

Gday all,

just read through this thread and have a couple of questions. I have VX SS Series II that appears to already have the two hole mod done to it. The smaller hole has a pipe that disappers into the guard however the big hole just seems to open into the engine bay (there is no shroud around it). I'm just wondering if there something missing or there should be a shroud as to my mind it seems to be just picking up hot air from the engine bay instead of cold air...

Id post some pics but seems my post count is not high enough.

Thanks

Steve

[Wonky]

Post the URL of the pics Steve but without the www and someone will put them up for you.

[aratic]

Sounds like you need the shroud as pictured above, with a hole cut and lined up with the second smaller hole thats been put in the lower half of the airbox

[73LJWhiteSL]

Heres the airbox pictures.

stick a http : // on the front of those.

i162.photobucket.com/albums/t241/73LJWhiteSL/misc/IMAG0144.jpg

i162.photobucket.com/albums/t241/73LJWhiteSL/misc/IMAG0145.jpg

Thanks

Steve

[Wonky]

http://i162.photobucket.com/albums/t241/73LJWhiteSL/misc/IMAG0144.jpg
http://i162.photobucket.com/albums/t241/73LJWhiteSL/misc/IMAG0145.jpg

[HSVREDSLED]

I did the second hole mod on my VY series 1 HSV. There was no second hole. Had to cut out a second hole next to the original. Piece of 90mm PVC pipe and all was good. All up cost about $3.

[bidzr]

hey guys this is the hsv vy2 airbox i ended up buying. the only modification i had to make was to cut some of the plastic protector that stops hot air and dust etc from entering the airbox (not sure what its called) to make room for the extra hole, hope that makes sense. all fits well and i am very happy with it but i do need to get myself a k&n filter.

http://i1107.photobucket.com/albums/h389/bidzr/037.jpg

[MPD346]

hey guys this is the hsv vy2 airbox i ended up buying. the only modification i had to make was to cut some of the plastic protector that stops hot air and dust etc from entering the airbox (not sure what its called) to make room for the extra hole, hope that makes sense. all fits well and i am very happy with it but i do need to get myself a k&n filter.

http://i1107.photobucket.com/albums/h389/bidzr/037.jpg

can you buy that part that is attached to the right hand side of this airbox or do i have to buy the entire airbox?

[vzv8man]

The whole airbox is very expensive. Just the bottom piece is over $300 cost price, and you need HSV numbers. Better off asking if anyone has one hanging around in the garage. I got one for $50 of a forum member.

[MPD346]

Thanks man, i will ring around tomorrow or hopefully someone has one lying around.

[Wonky]

About 6 years ago now but I picked up a brand new one on eBay for my VZ SS for $45. There's one on there at the moment but I'm pretty sure it's not a HSV one, in which case the asking price is :weirdo:. You should be able to find one from the many HSV owners on here who've gone to an OTRCAI.

[MPD346]

the only one on ebay i found was coming off the bottom hole, im after the side snorkel one as i have cut most of the bottom of the airbox off.

[vzv8man]

PM Sent regarding VY HSV Series 2 airbox.

[Loco76]

found this searching the net. anyone keen on a 3 hole mod?
http://www.google.com.au/imgres?q=2+hole+mod&hl=en&gbv=2&biw=1366&bih=643&tbm=isch&tbnid=4mimhh0-Zo0-XM:&imgrefurl=http://www.gtoforum.com/f14/06-airbox-new-k-n-2-hole-mod-vector-hsrk-21443/&docid=cjJ_d8VoaIShqM&imgurl=http://www.gtoforum.com/attachments/f14/4746d1242672667-06-airbox-new-k-n-2-hole-mod-vector-hsrk-fs2.jpg&w=1600&h=1200&ei=s6kgT_fbGu-SiAeC_-z8BA&zoom=1

[locote]

I have a VZ LS2 inlet pipe, delfi maf for sale if any one is keen PM me