Composition Of Stock Exhaust Port Sleeves?
05-11-2005, 07:57 AM
#2
Senior Member
Join Date: Nov 2004
Location: Europe, Belgium
Posts: 147
[quote name='1Revvin7' date='May 11 2005, 03:21 AM']What are the stock exhaust sleeves made out of? And is that air gap between the housing's port and the sleeve there for the expansion of the sleeve?
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I think the gap is also for isulation, so the rotor housings stay cooler..
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I think the gap is also for isulation, so the rotor housings stay cooler..
05-11-2005, 08:00 AM
#3
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Join Date: Jan 2004
Location: Central Ohio (Hebron) Zephyrhills Fla.
Posts: 1,322
[quote name='1Revvin7' date='May 10 2005, 05:21 PM']What are the stock exhaust sleeves made out of? And is that air gap between the housing's port and the sleeve there for the expansion of the sleeve?
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To maintain strength at high temps, probably a high nickel content steel.
The gap is to reduce heat transfer to the housing.
Lynn E. Hanover
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To maintain strength at high temps, probably a high nickel content steel.
The gap is to reduce heat transfer to the housing.
Lynn E. Hanover
05-11-2005, 11:13 AM
#6
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Thread Starter
Join Date: Oct 2001
Location: Peoria, AZ
Posts: 10,906
[quote name='TYSON' date='May 11 2005, 08:45 AM']I used a zirconium nitride coated drill bit and went through easily with a good drill.
Are you gonna try your hand at making replacements 1Revvin7?
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I have an idea for one, but I need to know what I can make them out of, and at the lowest cost possible.
I read that you can make replacement sleeves out of Al, they just have to a tight fit inorder to allow the heat to move to the coolant passages. I don't want to have to build several motors to figure this out if someone already has. I'm going to spend enough money dynoing several shapes as is.
Are you gonna try your hand at making replacements 1Revvin7?
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I have an idea for one, but I need to know what I can make them out of, and at the lowest cost possible.
I read that you can make replacement sleeves out of Al, they just have to a tight fit inorder to allow the heat to move to the coolant passages. I don't want to have to build several motors to figure this out if someone already has. I'm going to spend enough money dynoing several shapes as is.
05-11-2005, 11:46 AM
#7
Senior Member
Join Date: Nov 2004
Location: Europe, Belgium
Posts: 147
Al, seems quite inpossible to me, then you can better weld up te housings and make the flow path you want in the housings without sleeves, because it'll be Alot of work to make the sleeves fit so well the the heat is optimal transferred without melting them away, especially with turbo applications..
