induction sound

[crazyshad1]

I'm dissapointed with the lack of spooling sound. I've had various other turbo cars but the Z20Let its almost silent, is it down to the turbo? I've tried a k+n and a pipercross induction kit ( i knot their not favioured aposed 2 a panel filter) but its almost silent. Is there any thing i could do to make it louder, theres no better sound than a turbo coming on boost?

[wywywywy]

Well, no. I have an Apexi cone filter and the induction noise is mental...

[wayneGSI]

Well, no. I have an Apexi cone filter and the induction noise is mental...
you got a sound clip of this mate?

[wywywywy]

Errr... no, sorry. That is... err... difficult.

[welsh-andy]

Well, no. I have an Apexi cone filter and the induction noise is mental...

too right, its amazing, thats y i changed my mind and decided not 2 sell it, would miss the insane noise:D

[wywywywy]

The best bit is when the OE DV dumps, the pressure comes back out of the Apexi! The sound is absolutely mental!
(Especially because of the Apexi's shape, its like a loud speaker)
It sounds a bit like wastegate chatter, but it is not.

[welsh-andy]

The best bit is when the OE DV dumps, the pressure comes back out of the Apexi! The sound is absolutely mental!
(Especially because of the Apexi's shape, its like a loud speaker)
It sounds a bit like wastegate chatter, but it is not.
yeah its so like a loud speaker, the dump can heard it a mile away, ppl always stop and look as u pssssh'in by:hysterical:

[crazyshad1]

I cant really see how changing the filter would change the induction sound. I changed from a pipercross to an apexi (undoubtably the best)on my old sx and nothing changed. With the filters i've used on the astra, you can hear the turbo stall and slight spool-up. I wonder if the turbo was designed with noise in mind?

[mystery machine]

i took my pipercross induction kit off, it was too noisey (says he with an evo sound-a-like exhaust) :red:

tis true, an induction kit makes a massive difference to hearing the turbo spool up and the sound of the boost being dumped.

[hott4u]

try extending the AFM wires to the front of the engine then put on a apexi pod filter, if you cant here that then theres something seriously wrong8)

[mik]

anyone got any pics of the apexi set up??

is it this filter??

http://cgi.ebay.co.uk/NEW-APEXi-POWER-INTAKE-AIR-FILTER-FREE-UNIVERSAL-FLANGE_W0QQitemZ130173757035QQihZ003QQcategoryZ366 80QQrdZ1QQssPageNameZWD1VQQcmdZViewItem?_trksid=p1 638.m118

thanks

[wayneGSI]

anyone got any pics of the apexi set up??

is it this filter??

http://cgi.ebay.co.uk/NEW-APEXi-POWER-INTAKE-AIR-FILTER-FREE-UNIVERSAL-FLANGE_W0QQitemZ130173757035QQihZ003QQcategoryZ366 80QQrdZ1QQssPageNameZWD1VQQcmdZViewItem?_trksid=p1 638.m118

thanks
yeap thats the one, tempted myself ;)

[mik]

i'd really like to see some pics of this set up :)

anyone help?

lol

[wayneGSI]

http://img.photobucket.com/albums/v491/aberboy0/old/untitled.jpg
http://img.photobucket.com/albums/v491/aberboy0/old/untitled-2.jpg

[mik]

so all you have done to achieve the sound is remove the standard air box and in its place popped in the apexi?

:)

[wayneGSI]

so all you have done to achieve the sound is remove the standard air box and in its place popped in the apexi?

:)
yes just comes straight off the 90degrees hose form the afm, best to have a cold aid supply aswell and you could even put a heat shield to stop unwanted heat ;)

[mik]

im tempted :)

but soooooooooooooo many people say 'go the panel filter route'

im confused :(

LMAO!!

any notice in power loss due to heat soak?

[wayneGSI]

here is another pic with the 2.2 set up ie no crossover,
http://i67.photobucket.com/albums/h287/james_rules2000uk/DSCN1522.jpg

[wayneGSI]

im tempted :)

but soooooooooooooo many people say 'go the panel filter route'

im confused :(

LMAO!!

any notice in power loss due to heat soak?
i have the pannel filter and veccy c pipe on at the mo, but for that price you may as well have a go, i dont think you use oil on it so it wont kill the afm

[mik]

i think i might give it a try in the 2.2 set up :D

how would you describe the sound ??

lol

if you can.

[mik]

sorry to be a pain but what diameter do the hoses need to be ??

thanks

[wayneGSI]

im not sure cause i havent got one, i may be ordering one tonight when i get home from work;)

the guys that have them on say that they are "mental" so i assume they sound good8)

[wayneGSI]

sorry to be a pain but what diameter do the hoses need to be ??

thanks
well i think the one welsh-andy has got is 70mm although its a very tight fit

[hott4u]

i think i might give it a try in the 2.2 set up :D

how would you describe the sound ??

lol

if you can.

makes your OE dump valve sooooooooo much more audible. just have to put one on and see for yourself. you can hear everything the turbos doing...:D

[welsh-andy]

well i think the one welsh-andy has got is 70mm although its a very tight fit
yep, very tight, i had 2 snip the hose end a ickle to get it to fit.

[wywywywy]

This is my setup.

http://i108.photobucket.com/albums/n16/wywywywy/Astra/640-55.jpg

The metal connector on the Apexi is 80mm.
But it comes with a 80mm>70mm reducer hose.
It is of course better to not use the reducer hose if you can find a silicon 80mm hose.

I don't notice any heat-soak at all, except when idle, which is good for me as it warms the car up quicker in the morning.

Apexi is the only one (I think) that doesn't use oil. So it won't kill the AFM. To clean, just use a soft brush and a hoover.

[wywywywy]

i think i might give it a try in the 2.2 set up :D

how would you describe the sound ??

lol

if you can.

When boosting, it goes... "weeeeeeeee" and "shhhhhhhhh" at the same time.
The faster the spooling, the high the pitch of the "weeeeeeeee".

When dumping, it goes... "chattt---shh---chatttt---zzz" in a split second.

Good enough for you? :D

[wywywywy]

Actually, thinking about it, no the Apexi is crap, don't buy it.
Just buy my 2.2 airbox with green filter which I am selling here. :D
http://www.astraownersclub.com/vb/showthread.php?t=129510

[IKCoupe]

You can get a Universal APexi Filter with a 70mm flange. The standard piping would then fit as the standard AFM is 70mm.

[wayneGSI]

just bought one of ebay cant wait to get it 8)

i like the set up of yours wywywywy i think ill do it that was, keep it as far away from the heat as possible ;)

[dazerc]

found a filter and 70mm flange here works out to be £35
http://www.turbowholesale.com/catalo...e-p-12068.html (http://www.turbowholesale.com/catalog/Apexi-Power-Intake-Universal-Filter-70mm-75mm-80mm-Flange-p-12068.html)

or here for even cheaper
http://www.2nrparts.com/ProductDetai...tCode=500-A027 (http://www.2nrparts.com/ProductDetails.asp?ProductCode=500-A027)

[wayneGSI]

both us sites though does it say p+p to uk?

got mine for £48 should be here for wednesday so im happy

[wayneGSI]

what blue hose is that to the left of the afm wywywywy? (degree wise)
http://i108.photobucket.com/albums/n16/wywywywy/Astra/640-55.jpg

[wywywywy]

If you plan on using a VXR AFM in the future, get the 80mm!

[dazerc]

both us sites though does it say p+p to uk?

got mine for £48 should be here for wednesday so im happy

Does yours come with the 70mm flange? or the 80mm/ 3" flange?
As all the ones on ebay are 80mm/3"

[wywywywy]

what blue hose is that to the left of the afm wywywywy? (degree wise)

45 deg! 45 deg!

[wayneGSI]

Does yours come with the 70mm flange? or the 80mm/ 3" flange?
As all the ones on ebay are 80mm/3"

yeah its the 80mm one so i will have to get a new pipe for it :rolleyes:

[welsh-andy]

Does yours come with the 70mm flange? or the 80mm/ 3" flange?
As all the ones on ebay are 80mm/3"http://cgi.ebay.co.uk/NEW-APEXi-POWER-INTAKE-AIR-FILTER-FREE-UNIVERSAL-FLANGE_W0QQitemZ130188877291QQihZ003QQcategoryZ366 80QQtcZphotoQQcmdZViewItem
got mine ere with 70mm flange, shes a great girl and no import duties