exhaust exit in front of rear wheel

For all topics relating solely to diesel engines and modifications
Post Reply
wildplumdx
Hard Yaka
Posts: 308
Joined: Fri Jan 11, 2008 7:51 pm

exhaust exit in front of rear wheel

Post by wildplumdx »

was wondering is it legal too exit the exhaust in front of the rear wheel ? as it would be a hell of a lot easier then dragging it over the diff ?
User avatar
tga_4x4
Hard Yaka
Posts: 244
Joined: Wed May 12, 2010 8:27 pm
Location: Tauranga

Re: exhaust exit in front of rear wheel

Post by tga_4x4 »

my wof guy does not have problem with it, my drops just in front of diff, and its a 4 door safari
basics
Hard Yaka
Posts: 1511
Joined: Fri May 11, 2007 12:00 pm
Location: Wellington

Re: exhaust exit in front of rear wheel

Post by basics »

i think it has to exit behind any passanger seats :?:
99 pajero exceed 3.2
wildplumdx
Hard Yaka
Posts: 308
Joined: Fri Jan 11, 2008 7:51 pm

Re: exhaust exit in front of rear wheel

Post by wildplumdx »

yeah it does but i'm just gunna drop it in front of the diff thats a good idea
lownslow
Driver/Navigator
Posts: 47
Joined: Tue Aug 07, 2012 7:55 pm

Re: exhaust exit in front of rear wheel

Post by lownslow »

150mm back from rear most door from memory
User avatar
Filthy4x4
Hard Yaka
Posts: 1052
Joined: Mon Dec 20, 2010 2:51 pm
Location: KKK

Re: exhaust exit in front of rear wheel

Post by Filthy4x4 »

lownslow wrote:150mm back from rear most door from memory


From the last opening window/door :wink: 8)
Image
027 MUD GEAR - (027 683 4327)

Check our facebook:
http://www.facebook.com/Filthy4x4

http://www.facebook.com/Filthymotorsportnz
User avatar
Crash bandicoot
Hard Yaka
Posts: 2924
Joined: Thu Dec 30, 2010 7:19 pm
Location: Towing a hilux

Re: exhaust exit in front of rear wheel

Post by Crash bandicoot »

tsk tsk.


the exhaust must exit 300mm behind the last rear passenger compartment opening and not be any more the 92 DB and must not protrude out side the line of the body.
Waiter...there is a drought in my glass.
User avatar
skid
Tyre Man
Posts: 6311
Joined: Thu Oct 06, 2005 12:00 pm
Location: WELLINGTON-0272417757
Contact:

Re: exhaust exit in front of rear wheel

Post by skid »

Easiest thing to do would be to ask your WOF man.
Ultimately its up to him in the end.

My WOF guy doesnt have an issue with mine which exits just in front of rear wheel
80 Series on 35" creepies, manual with twin factory lockers.
0272417757

*CHILLAX BRO.*
User avatar
Dirtydog
Hard Yaka
Posts: 1788
Joined: Wed Jun 24, 2009 6:47 pm
Location: Gore, Southland

Re: exhaust exit in front of rear wheel

Post by Dirtydog »

Would that meen on a 5 door vehicle it has to exit 150mm from the back, cause technically the 'boot' is part of the passenger compartment.

i suppose it comes down to who checks it over.
User avatar
rokhound
Hard Yaka
Posts: 2558
Joined: Sat Apr 22, 2006 12:00 pm
Location: Christchurch

Re: exhaust exit in front of rear wheel

Post by rokhound »

uwshho wrote:
lownslow wrote:150mm back from rear most door from memory


From the last opening window/door :wink: 8)


If you use that theory, how do you go with a rag top vehicle?
Ugly is a state of mind..... and the state of my truck!
User avatar
Crash bandicoot
Hard Yaka
Posts: 2924
Joined: Thu Dec 30, 2010 7:19 pm
Location: Towing a hilux

Re: exhaust exit in front of rear wheel

Post by Crash bandicoot »

It's a grey area...as a SUV would be ruled out as the entire body is open to the passengers. A two door coupe such as a nissan skyline can have a side dump. yet a four door cannot as the climate (zone control) on the rear parcel tray of some models circulates air via the boot. and yet it is sealed from the boot compartment...(go figure) :roll: Basically. anything that isn't a single cab ute would technically a Wof fail with a side dump.
Waiter...there is a drought in my glass.
User avatar
Filthy4x4
Hard Yaka
Posts: 1052
Joined: Mon Dec 20, 2010 2:51 pm
Location: KKK

Re: exhaust exit in front of rear wheel

Post by Filthy4x4 »

Exhaust side pipes:

NZTA regulations state: "An exhaust system must be designed, constructed, positioned and maintained in a way that minimises the risk of heat or fumes emitted from the system harming the vehicle’s occupants."

The LVV requirements provide more guidance:
An exhaust system fitted to a low volume vehicle must be positioned so that it terminates in a position where the outer end of the exhaust pipe is not directly underneath the passenger compartment.

This allows an exhaust to end under the sealed boot floor of a sedan, tailpipe angled downwards; it does not have to protrude out beyond the rear of the bumper.

Cobra and Lotus 7 replicas are built with side pipes which are as long as possible so that they exit just in front of the rear wheels. This design can be used on other vehicle types, as long as the exhaust exits just in front of the rear wheel. This is so that fumes can't rise up and enter an open window.

Externally vented wastegates must also follow this requirement, ideally exiting as far rearward as possible, not in the engine bay or out of a front guard.

If the exhaust does exit from teh side, any sections of exposed exhaust adjacent to points of occupant entry and exit must be adequately heat-shielded, to prevent burn injuries.
Image
027 MUD GEAR - (027 683 4327)

Check our facebook:
http://www.facebook.com/Filthy4x4

http://www.facebook.com/Filthymotorsportnz
XJCrawler
Hard Yaka
Posts: 209
Joined: Mon Mar 12, 2012 1:47 pm

Re: exhaust exit in front of rear wheel

Post by XJCrawler »

correct me if i'm wrong, but if you have a SWB safari and replaced the sliding rear windows with solid fixed glass pane could you almost get away with it infront of the rear tyre out exhausting out to the side? (it would be pushing 150mm depending on where its mounted).
User avatar
Dirtydog
Hard Yaka
Posts: 1788
Joined: Wed Jun 24, 2009 6:47 pm
Location: Gore, Southland

Re: exhaust exit in front of rear wheel

Post by Dirtydog »

thats a good question....

some one do it so that we will know :lol:
User avatar
klompy
Hard Yaka
Posts: 421
Joined: Sat Feb 28, 2004 12:00 pm
Location: Rotorua

Re: exhaust exit in front of rear wheel

Post by klompy »

Dont Safaris have 2 rear doors.
User avatar
DieselBoy
Hard Yaka
Posts: 4568
Joined: Sun Nov 14, 2004 12:00 pm

Re: exhaust exit in front of rear wheel

Post by DieselBoy »

uwshho wrote:Exhaust side pipes:

NZTA regulations state: "An exhaust system must be designed, constructed, positioned and maintained in a way that minimises the risk of heat or fumes emitted from the system harming the vehicle’s occupants."

The LVV requirements provide more guidance:
An exhaust system fitted to a low volume vehicle must be positioned so that it terminates in a position where the outer end of the exhaust pipe is not directly underneath the passenger compartment.

This allows an exhaust to end under the sealed boot floor of a sedan, tailpipe angled downwards; it does not have to protrude out beyond the rear of the bumper.

Cobra and Lotus 7 replicas are built with side pipes which are as long as possible so that they exit just in front of the rear wheels. This design can be used on other vehicle types, as long as the exhaust exits just in front of the rear wheel. This is so that fumes can't rise up and enter an open window.

Externally vented wastegates must also follow this requirement, ideally exiting as far rearward as possible, not in the engine bay or out of a front guard.

If the exhaust does exit from teh side, any sections of exposed exhaust adjacent to points of occupant entry and exit must be adequately heat-shielded, to prevent burn injuries.


Good post man, that answers all the questions and sums it up well, from the correct source :D
lax2wlg wrote:Is that like saying 'she's hot, for a crackwhore??
XJCrawler
Hard Yaka
Posts: 209
Joined: Mon Mar 12, 2012 1:47 pm

Re: exhaust exit in front of rear wheel

Post by XJCrawler »

klompy wrote:Dont Safaris have 2 rear doors.


I was refering to a SWB model - 2 dr. But I think there's not enough room to exit before the rear wheel and be clear enough of the passenger door.
Post Reply

Return to “Diesel Engines and Modifications”