Side Exit exhaust

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Side Exit exhaust

Postby no_8wire » Wed Feb 15, 2012 11:05 am

Does anybody know how far the exhaust needs to exist behind the rear doors to pass a wof?

Looked on the virm and got this as a reason for rejection:

The exhaust system is so constructed that emitted heat
or fumes are likely to harm vehicle occupants, eg the
exhaust gases are not directed away from the perimeter
of the vehicle’s passenger compartment
(Note 6).

Note 6 Externally venting wastegates (screamer pipes) are not permitted as they are not adequately muffled and the exhaust
gases passing through the wastegate are not directed through the vehicle’s exhaust system. However, wastegates that have
their own exhaust system or exhaust pipe exiting behind the passenger compartment are permitted



Question is...how far behind?
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Postby Quint » Wed Feb 15, 2012 11:43 am

Behind is behind. That is the line.
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Postby siren676 » Wed Feb 15, 2012 12:36 pm

Read somewhere that its 300mm behind the rear doors
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Postby Al » Wed Feb 15, 2012 4:16 pm

Does an MR2 even need an exhaust :o Only reason I got one made up is I didn't want to cause a fire :lol:
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Postby MrOizo » Wed Feb 15, 2012 5:27 pm

siren676 wrote:Read somewhere that its 300mm behind the rear doors


I have heard something like that too.

Wouldnt that be for a sedan type car? Isnt a hatch/wagon considered as having a rear door?
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Postby rollaholic » Wed Feb 15, 2012 6:01 pm

Al wrote:Does an MR2 even need an exhaust :o Only reason I got one made up is I didn't want to cause a fire :lol:


well it would still need to meet noise standards :P
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Postby Lloyd » Wed Feb 15, 2012 7:02 pm

And the very first reason for failure in the VIRM exhaust section is...

1. A vehicle is not fitted with an exhaust system that includes a means of sound reduction
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Postby iOnic » Wed Feb 15, 2012 7:03 pm

Maybe it's like spare wheel security - only has to comply if present.

Run open headers/turbo next wof test.

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Postby Scottie » Wed Feb 15, 2012 7:29 pm

Lloyd wrote:And the very first reason for failure in the VIRM exhaust section is...

1. A vehicle is not fitted with an exhaust system that includes a means of sound reduction


A turbo is kinda a form of noise reduction :D
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Postby Al » Wed Feb 15, 2012 7:40 pm

Maybe I'll run open downpipe and put some earmuffs in the car ?


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Postby no_8wire » Thu Feb 16, 2012 8:41 am

Yeah car in question is a sedan, so passenger compartment would end behind the rear most part of the passenger door?
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Postby cat007 » Thu Feb 16, 2012 11:39 am

What about in a hatch back situation - won't the boot be counted as a rear opening?
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Postby wde_bdy » Thu Feb 16, 2012 11:40 am

It isn't a passenger opening so no the hatch won't count.

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Postby cat007 » Thu Feb 16, 2012 11:42 am

Even though there's no divider between the back seat and boot?
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Postby BlakeNZ » Thu Feb 16, 2012 12:16 pm

exhaust has to exit behind the most rearward of passenger window that can be opened.
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Postby Grrrrrrr! » Thu Feb 16, 2012 12:45 pm

wde_bdy wrote:It isn't a passenger opening so no the hatch won't count.

Callum


Nothing separating the hatch from the passengers so it is still the same compartment.
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Postby wde_bdy » Thu Feb 16, 2012 12:53 pm

I went through this with my Starlet before we built the exhaust tunnel in the floor coming out the sill in front of the rear wheel. The hatch doesn't count and on a two door with non opening windows the side windows don't count either.

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