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Rear manifold cat heat vent pipe - Engine & Ancilliaries/Gearbox - The Lotus Forums Jump to content
trcm

Rear manifold cat heat vent pipe

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Inevitably perhaps, the paint is peeling off the black duct pipe which guides heat up to the roof vent from the rear manifold cat.

I could paint it I guess, but think it might just disintegrate if I remove it to paint.

Can anyone suggest somewhere I can buy a section of replacement pipe of the right diameter to replace this with?

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The black one is neoprene isn't it?

Not sure that would last long in the engine bay 😲

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From the link it says the black is good for 200 degreesC.   Would that be good enough?

 

Quote

JJC Flexible Ducting Hose Neoprene Or Silicone Brake / Hot Or Cold Air Induction

 

 

 

JJC single layer ducting hose. Constructed from temperature resistant materials and features a wire helix to allow tight bends to be formed without kinking.

BLACK HOSE:

Single Layer Neoprene

Temperature Range: -50 Up To +200 Degrees C

RED/BROWN HOSE:

 

Single Layer Silicone

 

Temperature Range: -80 Up To +310 Degrees C

JJC ducting hose is the perfect solution for brake ducts, air intakes, cockpit ventilation and other low pressure / vacuum applications.

 

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I think cats temps run at up to and beyond 500℉ / 260C, and though the air would be cooler than that, I'd like a bit more margin.

Edited by trcm

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Looks good. 

If anyone ends up buying a 1m or 1.5m length, I would be interested in buying a short section. 

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hello,

I have a question about this pipe;

do you think that the air is going down to the cat during the ride or it work like a chimney when the car stops?

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1 minute ago, Ratman said:

hello,

I have a question about this pipe;

do you think that the air is going down to the cat during the ride or it work like a chimney when the car stops?

Chimney, to remove hot air.

 

 

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I fitted one of the JJC ones a few months back. Seems to be doing the job fine but the only thing grinding my gears is that its colour now clashes with my engine cover, :rolleyes: .

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