Jump to content
SAU Community

Exhaust Question. Yay Or Nay Nay Nay

ashneel

By ashneel,
in Engines & Forced Induction

 Share

Recommended Posts

ashneel Grand Master

ashneel

Posted
Posted

Ok just had a question for you technical guys out there to see if this would work or would this be a big no no. im upgrading my exhaust system and will be running a Varex oval twin tip muffler and plan on running it as listed below:

3"dump into de-cat pipe into varex muffler (this will be installed where the middle muffler is sitting now, then extend the tips to the rear of the car.

The whole point of this is to hide the fact that the car is running a varex. I don't have a problem with running a loud ass exhaust but be good to just shut it up when passing though booze pus and so on.

Discuss :)

Link to comment
https://www.sau.com.au/forums/topic/338596-exhaust-question-yay-or-nay-nay-nay/
Share on other sites
StealthX Veteran

StealthX

Posted
Posted

Yeah, nothing wrong with it as far as I can tell. But with one muffler and no cat, it'll still be fkn loud on the quiet setting...

I'd suggest a decent sized resonator after the muffler, and still well out of sight of the tail pipe, then make the tail pipe as close to stock looking as possible...

Good ideas mate!

saliya Rising Star

saliya

Posted
Posted
I'd suggest running a cat...a) Its legal, b) doesnt hurt performance much if its a good cat.

+1

Too-loud exhaust? Caution, possibly defect + fix-by-date, bill $100-$500 depending on what needs to be done.

No cat? Probably defect + possible $11k fine + fix-by-date, bill $100-500 + $fine...

Cheers,

SW

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

If you get EPA'd they will generally have a look under the car if it has a 3" exhaust but is under the DB limit - to check for that kinda thing.

They had a GOOD look under my car when i went there wih a 3.5" exhaust and passed. Dude couldnt believe his eyes until he saw the size of the mufflers etc.

Also it wont stop the officers hearing you drive past and defecting you based upon that which tends to happen a bit as well :)

Its a good idea in theory, and in other states would probably work a treat however Vic just doesnt roll like that if you get the wrong officer on the wrong day.

Other issues you'll come by are how low the exhaust has to hang to cater for the motor part of the varex, and thats if it will even fit under there to begin with (in terms of overall muffler size).

So that would bring about potential ride height issues or a very obvious "dip" in the exhaust to lower it enough to cater for the varex motor.

Touge Kyousou Experienced

Touge Kyousou

Posted
Posted (edited)

Not familiar with the underbody of the chaser but you may have space issues with installing a varex half way as they are a fairly large muffler due to the internal 3 chambers design especially if you get the larger piping size ones like the 3.5".

Edit - err, nismoid beat me to it lol.

Edited by Touge Kyousou
KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted
does the minimum ground clearance of 100mm rule apply to exhaust as well...or just chassis..
Not in NZ - does not apply to body kits or exhaust - don't know about your state.
ashneel Grand Master

ashneel

Posted
  • Author
Posted

hmmmmm

there is a fair bit of room but ye it might sit a little too low. at the moment the middle muffller is sitting 50-60mm from the ground and thats smaller then the varex...

thanks for the input guys :D

boostn0199 Grand Master

boostn0199

Posted
Posted
+1

Too-loud exhaust? Caution, possibly defect + fix-by-date, bill $100-$500 depending on what needs to be done.

No cat? Probably defect + possible $11k fine + fix-by-date, bill $100-500 + $fine...

Cheers,

SW

Im so sick of so many people all just putting these redicolously fines for no cats its not even true, If anything you just get the same fine as you would if you get caught and epad on the spot.

nuclear_skyline Mentor

nuclear_skyline

Posted
Posted
Yeah I've never heard of a single case EVER of someone actually getting a fine like that.

My understanding is that there is a provision for a very large fine in the legislation - some $11-12k but no one yet has been hit with it. There will be a first time though :mad:

Rolls Grand Master

Rolls

Posted
Posted (edited)
Used to happen all the time in Wollongong on Australia Day and Anzac Day.

You should definitely believe it.

I honestly don't believe you. $11k for not running a cat, if someone can actually provide evidence of someone actually being fined this amount I'll buy you a beer lol.

People get charged less for running over a cyclist and killing them.

Edited by Rolls
saliya Rising Star

saliya

Posted
Posted (edited)
Im so sick of so many people all just putting these redicolously fines for no cats its not even true, If anything you just get the same fine as you would if you get caught and epad on the spot.

Sigh. The quoted possible penalty isn't ridiculous (that is, I mean it's possible to be hit with that number).

From 'Crimes (Sentencing Procedure) Act 1999 No 92'

( http://www.legislation.nsw.gov.au/viewtop/...1999+FIRST+0+N/ ):

and/or 'Crimes Act 1914' as amended in 2007:

( http://www.comlaw.gov.au/ComLaw/Legislatio...A25734400097315 )

1 penalty unit = $110

From 'Protection of the Environment Operations (Clean Air) Regulation 2010'

( http://www.legislation.nsw.gov.au/fragview...+2010+whole+0+N ):

For not using a "required anti-pollution device" (e.g. a catalytic converter):

Maximum penalty: 400 penalty units (in the case of a corporation) or 200 penalty units (in the case of an individual).

So the maximum penalty for not having a catalytic converter is now $22k for an individual.

And that's not including any other offences a person might get done for at the same time.

For example, because there is no cat 'Excessive Air Impurities' probably also applies - another 200-penalty-unit-maximum fine.

Sure, the numbers are very large - maybe even 'ridiculous'.

I personally believe it's very unlikely that an individual car driver would get hit with the full penalty units for a first offence.

But that's not to say it cannot / will not happen.

Cheers,

Saliya

Edited by saliya
Rolls Grand Master

Rolls

Posted
Posted

The only people that would actually cop fines like that are companies when big diesel trucks are caught running without or with a stuffed particle filter for several thousand kilometres.

An individual not running a cat will never get fined anywhere near that.

stenve Proficient

stenve

Posted
Posted

You should get Damien at katsutadai works to make your exhaust.

mate has one on his chaser and it sounds beautiful. quite when cruising and loud and raw when you give it a little.

Quality is pretty amazing too.

He's in Brisbane. but I'm pretty sure he can make them up and send it to you.

zebra Grand Master

zebra

Posted
Posted
You should get Damien at katsutadai works to make your exhaust.

mate has one on his chaser and it sounds beautiful. quite when cruising and loud and raw when you give it a little.

Quality is pretty amazing too.

He's in Brisbane. but I'm pretty sure he can make them up and send it to you.

Also very expensive for what they are

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

    • Zabuza
      Need AC Compressor for R32

      By Zabuza · Posted

      Ok glad you clarified on the frenchy’s options , I was worried about if my oem hoses would fit the new compressor or not if I just bought the bracket/compressor kit ,  didn’t realize they also sold a larger full conversion kit. Hmm may just go oem in that case then to make it easy only because I plan to sell this car to upgrade to a 32 GTR or 34 GTT.
    • sausagepianist
      V36 2008 Coupe Wiring Differences with Android Screen

      By sausagepianist · Posted

      Right, here's a video of the basic operation at least.  This is what you can expect day to day when you turn the car on and it boots from standby.  The only thing from a media point of view I haven't gotten working is for it to autoplay plexamp when it turns on from standby (it works from cold boot) but that's more of a plexamp problem as it will autoplay other music players.  Also attached is my one stray cable.  It's part of the screen's wiring adapters but there's just nowhere for it to go in my car.  I've just now done a bit of research and found a matching port on a 2010-2014 head unit with BOSE.  Mine has no BOSE so that's that case pretty much closed I think.  Plugging in the Infiniti AC panel basically did nothing for me, so that's a dead end as well.  Next port of call is to mess with this CANBUS module and see what I can find from it.  I found this resource containing the DBC files for a 2010+ G37 : https://github.com/icecube45/Dash_InfinitiG37/blob/master/InfinitiG37.dbc I'll now have something to go from when I try to extract my CANBUS data so I can see if the HVAC Mode, Fan Speed, Temperature, etc. match and also the gear shifter position.  It's a pretty big assumption that it's just mismatched CAN signals but considering all the devices in the CAN network are talking to each other (AC can be fully adjusted just with no info on screen) it might be a safe one.  I will report back WhatsApp Video 2025-02-26 at 12.49.10.mp4
    • sausagepianist
      V36 2008 Coupe Wiring Differences with Android Screen

      By sausagepianist · Posted

      Thanks for that Paul.  Do you think if I posted a picture you'd be able to remember where it went? 
    • sausagepianist
      V36 2008 Coupe Wiring Differences with Android Screen

      By sausagepianist · Posted

      Sorry Duncan, I didn't get a notification for the replies.  Thanks for responding!  It's a full Android device, but does allow you to use CarPlay/AA as well.  This is the one I bought from NaviRS on AliExpress: https://www.aliexpress.com/item/1005006368602668.html?spm=a2g0o.order_list.order_list_main.111.59aa1802JDzQ0E - the 2K 8G-256G CAM variant but it seems to have gone up by £170 since I bought it!  My purchase was ￡307.14.   It's not the fastest thing in the world but performs perfectly adequately.  It stays on standby unless I disconnect the battery and let it power down, then it's just a fairly standard Android bootup time from cold.  The DSP Equaliser is very nice and made the standard stereo system sound pretty decent compared to the stock screen.  Perhaps I can take a video of it when I get a sec. It *allegedly* supports the reverse camera, but I'm yet to get that working.  It has options for reverse cam (a camera unit can be bought separately) or 360 cameras (also bought separately).  To be fair it doesn't seem to detect that the shifter was put into reverse but I'm working on a theory about this as well.  At the moment I'm going without which is a bit annoying considering the car is an absolute canal barge but so far I haven't caused any damage I'll grab a picture of the wire I'm missing later today when I can get outside.  My theory, by the by, is that not only is the head unit different, but the CANBUS network has different signals for the different years.  I think this because I have a spare AC panel from a newer Infiniti G37 (as opposed to my Nissan panel) which wouldn't control anything except the volume when I had it wired up with the stock system.  I'm going to throw it back in and see if the screen will respond to it.  I've just ordered an arduino CANBUS module so I can have a look at the signals going around the car and see if I can spot anything.  I'm thinking if I can work out what it's expecting vs what it's getting I might be able to translate and relay the signal back but so far just a theory anyway. I also found this on my travels, so far the only one that specifically matches my car: https://www.aliexpress.com/item/1005002822934280.html?spm=a2g0s.imconversation.0.0.33433e5fgttovi If you look at the picture of the before, it has the card reader slot, and the picture of the head unit is exactly the same as the one pictured in my original post.  I asked if they sell the cables separately but sadly they won't.  I didn't want to just buy this one because it's a super old Android version and only dual core - likely slow as hell. 
    • sonicii
      V35 Overheat + Coolant Boil & Overflow + Engine not Starting

      By sonicii · Posted

      As above, you did refill the coolant and burp the system before running it again didn't you?
×
×
  • Create New...