Ceramic Coated Exhaust Manifolds - Defender Source
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  #1  
Old April 16th, 2009, 02:29 PM
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kingstonman
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Joshua Bohm
2001 DII & 97 P38 Vitesse
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Location: Lake Oswego, OR
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Ceramic Coated Exhaust Manifolds

Ceramic Coated Exhause Manifolds
will fit Defenders, Disco 1's and RRC's

Benefits include:

  • Reduces manifold temperature by approximately 300 degrees, will withstand up to 1800 degrees.
  • Corrosion protection
Pricing Pick Up / Shipped

Manifolds $350 / $367

Manifolds with Basic Kit $433.60 / $450.60

Manifolds with Lock Kit $457.60 / $474.60

Basic Kit includes : Exhaust Studs
Stud Nuts
Manifold Gasket
Flange Gasket
Bolts
Washers
Lock Washers


Lock Kit includes: everything in the basic kit but adds Lock Plate


Call Josh at Columbia Rovers 503.227.3766
or email parts@columbiarovers.com
www.columbiarovers.com
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  #2  
Old April 16th, 2009, 02:47 PM
rmuller
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Ryan
1966 S2a 88" | 2006 LR3
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Any reason this wouldn't fit a D2? Atlantic British has the same part number for D1/D90 & D2s for the genuine ones
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  #3  
Old April 16th, 2009, 03:07 PM
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Joshua Bohm
2001 DII & 97 P38 Vitesse
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Yeah my bad, i just left it out. they will fit dII's as well.
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  #4  
Old April 17th, 2009, 11:36 PM
cdb
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Clark Bowen
1969 Series 2a/OM617 Bugeye 88"
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Pardon my ignorance Josh, but how does the ceramic coating reduce the temperature of the exhaust manifold by 300 degrees?
Do you mean in the engine compartment?
Seems like a huge drop. I thought V8 temperatures were in the 400-500 degree range at the exhaust manifold.
If they do, in fact, drop the temperature that much how would they work on a turbo diesel (300 TDi)?

Clark
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  #5  
Old April 18th, 2009, 08:56 AM
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John B.
1991 Defender 90, 200TDI
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It reduces the OUTSIDE temperature of the manifold. Obviously the gas inside is still the same.
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  #6  
Old April 18th, 2009, 10:06 AM
cdb
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Clark Bowen
1969 Series 2a/OM617 Bugeye 88"
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Location: Oregon, USA
Posts: 775
"It reduces the OUTSIDE temperature of the manifold. Obviously the gas inside is still the same."

Thanks. I wasn't sure if there was a increase in heat transmission with the coating or a decrease.
Because there is a decrease in the heat transmission are the exhaust gases hotter and if so it would seem to be a bad idea on a TDi?.

Clark
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  #7  
Old May 26th, 2009, 12:25 PM
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Joshua Bohm
2001 DII & 97 P38 Vitesse
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Location: Lake Oswego, OR
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We just got a couple more sets of manifolds back from being coated. Let me know if your interested.

Josh
503.227.3766
parts@columbiarovers.com
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  #8  
Old May 26th, 2009, 12:47 PM
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Phillip
1995 SW #487/500
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Id like to know more about the benefits of coated manifolds, obviously cooler underhood temps. It seems to me that keeping all the heat inside of the manifold would make the heads hotter?
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  #9  
Old May 26th, 2009, 01:28 PM
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Joshua Bohm
2001 DII & 97 P38 Vitesse
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The coating does reduce the temp in the engine bay. The coating works as a thermal barrier keeping the heat within the manifolds. by keeping heat within the manifold, you're going to accelerate the exhaust gas velocity which reduces back pressure and reduces fuel contamination due to reversion. by reducing the surface temp of the manifolds the surrounding components will see less heat as well.
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