rear facing exhaust

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adithorp
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Re: rear facing exhaust

Postby adithorp » Wed Jul 17, 2013 1:52 pm

Has it had any effect on the fueling given the extra lenth? Do you think the flexi section has any effect on gas flow as it's not smoth walled?

I've considered a rear exit as achievable and a couple of us discussed it at Stoneleigh. We even looked at putting a butterfy valve/diverter behind the side silencer to give loud/quiet switchover.

jeffw
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Re: rear facing exhaust

Postby jeffw » Wed Jul 17, 2013 3:57 pm

I'd be surprised if it had made any difference to either fueling or flow. The car certainly doesn't feel any different with or without (which is more than you could say for the Decibel Devil). You could certainly run smooth pipe (and bend or weld as requried) but I have a surplus power (and the possibility of more with the right intercooler) that the cost saving of flexi was more important. The big difference is the flames come out the back rather than the side now lol :D

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sullayton
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Re: rear facing exhaust

Postby sullayton » Wed Jul 17, 2013 8:44 pm

Thanks for sharing this Jeff, so it seems a few of us are pondering this problem as well... I didn't think of running flexi that route. Appreciate your development updates. Cheers.

jeffw
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Re: rear facing exhaust

Postby jeffw » Wed Jul 17, 2013 9:06 pm

Just to be clear this idea comes from a Fury that was at Fury Sportscars and was adapted to the Phoenix by Steve.

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ozePhoenix
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Name: Ian Dawson
Location: Mandurah, Western Australia

Re: rear facing exhaust

Postby ozePhoenix » Thu Jul 18, 2013 2:33 pm

I'm hoping 60mm of clearance from the underside of the exhaust to the tyre is going to be enough :?
Planning to get some photo's this weekend.

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ozePhoenix
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Re: rear facing exhaust

Postby ozePhoenix » Tue Jul 23, 2013 12:29 pm

Here's an attempt at a couple of photos with the exhaust in place...
Image
Image
Image

jeffw
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Re: rear facing exhaust

Postby jeffw » Tue Jul 23, 2013 1:14 pm

Interesting pictures. You've got the main silencer in the same space as my fuel tank !

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ozePhoenix
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Re: rear facing exhaust

Postby ozePhoenix » Wed Jul 24, 2013 9:53 am

You mean here :)
Image

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matt_gsxr
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Re: rear facing exhaust

Postby matt_gsxr » Wed Jul 24, 2013 10:25 am

just being inquisitive, but what is that cast aluminium thing mounted on the back of the silencer housing with heat insulated wiring going to it? A fan or something more exciting?

Interesting photos.

jeffw
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Re: rear facing exhaust

Postby jeffw » Wed Jul 24, 2013 11:18 am

Looks like a fan.


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