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Side Exit exhausts

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Wed Aug 05, 2015 5:28 pm PostPost subject: Side Exit exhausts
AK
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Any tips? Pros Cons.....

To get a nice smooth underfloor we'll need to do something with the exhaust pipework - namely the rear box.

Where is best to exit?
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Wed Aug 05, 2015 6:29 pm PostPost subject:
AK
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Fee's car ran a twin side exit (one each side) in its previous life. So, that means it has hangers mounted for a side exit. See pics




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Wed Aug 05, 2015 7:28 pm PostPost subject:
Matty.H
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Did you get that exhaust when you bought the car? Doesn't look like it would take much to make that exit from the one side only.
Not that it's a huge difference but I would have it exiting the passenger side, purely for offsetting some of the cars weight.
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Wed Aug 05, 2015 11:05 pm PostPost subject:
chorlton
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Pros,
looks cool trackside.
Bit less pipe weight.

Cons,
Faces db meter trackside.
Lowest point on sill can clip on trailer
If you go side ways into gravel it gets trashed

However you'll probably run your flusher/neater than mine negating a few negs
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Thu Aug 06, 2015 7:33 am PostPost subject:
AK
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It has the whole stock fuel-tank position to run a silencer, and maybe get a bit creative with poking tail-pipe diagonally upwards through the car so its not too low Laughing
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Thu Aug 06, 2015 8:03 am PostPost subject:
HummuH
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Prone to damage if beneath body of car and can easily go under wheels if there's kerb / off track action, particularly if the exit is close to rear wheel.

As Chris says, more likelihood of falling foul of noise levels too.
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Thu Aug 06, 2015 8:57 am PostPost subject:
chorlton
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Driving over your own exhaust & being brought a pancake of its remains by a marshall you then have to bash, cut & make refit isn't as fun as you'd think.

The exhaust not the Marshall
Laughing
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Thu Aug 06, 2015 9:16 am PostPost subject:
HummuH
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chorlton wrote:
Driving over your own exhaust & being brought a pancake of its remains by a marshall you then have to bash, cut & make refit isn't as fun as you'd think.

The exhaust not the Marshall
Laughing


Alasdair's Mustang has lost two exhausts due to them going under the rear wheels when kerb hopping. When you look it you'd wonder how the hell it was possible. He's now gone back to rear exit.
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Thu Aug 06, 2015 9:35 am PostPost subject:
scottish scrutineer
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What ever you do, it needs to be at least half-way back the wheelbase
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Thu Aug 06, 2015 9:37 am PostPost subject:
Mr B
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http://f30.bimmerpost.com/forums/showthread.php?t=559334

Bring it up through the floor and out the quarter panels like the dtm
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Thu Aug 06, 2015 9:37 am PostPost subject:
AMD
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scottish scrutineer wrote:
What ever you do, it needs to be at least half-way back the wheelbase


Right Adam that means you can't buy that SLS GT3 Laughing
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Thu Aug 06, 2015 9:40 am PostPost subject:
Mr B
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Mr B wrote:
http://f30.bimmerpost.com/forums/showthread.php?t=559334

Bring it up through the floor and out the quarter panels like the dtm


Wrong pic!
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Thu Aug 06, 2015 11:30 am PostPost subject:
nefarious
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Would there be any benefit in exiting the exhaust into the venturi/diffuser to accelerate the underfloor airflow? Red Bull did something similar to "charge" their lower rear wing.
I've also heard of an "active skin" technology to reduce drag on plane fuselages - hundreds of little directional holes to effectively manage the boundary layer, promote a more laminar flow and reduce turbulence. Just a thought.
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Thu Aug 06, 2015 11:46 am PostPost subject:
foz01
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nefarious wrote:
Would there be any benefit in exiting the exhaust into the venturi/diffuser to accelerate the underfloor airflow? Red Bull did something similar to "charge" their lower rear wing.
I've also heard of an "active skin" technology to reduce drag on plane fuselages - hundreds of little directional holes to effectively manage the boundary layer, promote a more laminar flow and reduce turbulence. Just a thought.

same principle as a golf-ball...

fine on a circle :p
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Thu Aug 06, 2015 11:54 am PostPost subject:
AK
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Mr B wrote:
http://f30.bimmerpost.com/forums/showthread.php?t=559334

Bring it up through the floor and out the quarter panels like the dtm


Aye, that was my thinking Cool
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