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Where to get a larger wastegate flap?

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Old May 21, 2004 | 03:13 PM
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Where to get a larger wastegate flap?

When I go to port my wastegate, I've been told I should port it bigger than the stock flapper, and just weld a larger flapper on. Will I really need to port it this large, and if so...where can I get a larger flap? Thanks for any info!

-Joe
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Old May 21, 2004 | 03:18 PM
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Some people use an exhaust valve from a honda.
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Old May 21, 2004 | 03:43 PM
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I used a stainless steel washer.
http://68.201.94.43/fc/wastegate.html

-John
www.TwistedRotors.com
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Old May 21, 2004 | 04:11 PM
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Thanks for the info. The washer looks like a great idea. One question...how did you fill in the center of the washer like that?

-Joe
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Old May 21, 2004 | 04:15 PM
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http://www.teamrip.com/accessories.html
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Old May 21, 2004 | 04:41 PM
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Swoosh, will that fit on our wastegates? J/w cause it says any mitsubishi turbo.
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Old May 21, 2004 | 06:35 PM
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I had a local weld shop put the washer on. The welder filled in the center of the washer as he welded it to the face of the stock flapper and then he ground the face down smooth.
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Old May 21, 2004 | 07:35 PM
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errr...please do not cut open an exhaust valve....very dangerous
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Old May 21, 2004 | 07:39 PM
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Originally posted by ERAUMAZDA
errr...please do not cut open an exhaust valve....very dangerous
What?
An exhaust valve from a piston car... you just crop the top of the valve off and use the face.
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Old May 21, 2004 | 08:01 PM
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Granted, the honda and a lot of cars don't contain sodium filled valves, some do. If you know your chem you will know what sodium will do. Always research before u do things. My friend almost blew off his hand when a valve stem blew up!

In some exhaust valves, sodium is used as an agent for cooling the valves. Sodium-filled poppet valves are provided with a chamber that is formed by the hollow stem that extends well up into the valve head. At operating temperatures, the sodium becomes a liquid and splashes up and down inside the hollow valve stem. The sodium is an effective agent that serves to transfer the heat from the hot exhaust valve head through the stem and valve guides and to the engine cooling system.
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Old May 22, 2004 | 12:20 AM
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The proper way to do it is to take it to a turbo shop and have them swap a bigger flap on. It doesn't cost much.
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Old May 24, 2004 | 10:54 AM
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Originally posted by ERAUMAZDA
Granted, the honda and a lot of cars don't contain sodium filled valves, some do. If you know your chem you will know what sodium will do. Always research before u do things. My friend almost blew off his hand when a valve stem blew up!

In some exhaust valves, sodium is used as an agent for cooling the valves. Sodium-filled poppet valves are provided with a chamber that is formed by the hollow stem that extends well up into the valve head. At operating temperatures, the sodium becomes a liquid and splashes up and down inside the hollow valve stem. The sodium is an effective agent that serves to transfer the heat from the hot exhaust valve head through the stem and valve guides and to the engine cooling system.
Thats really interesting...I never knew that some valves were filled with sodium. I've seen sodium hit water...not pretty. Everyone else, thanks for all the help. I'm going to check prices at turbo shops first, and if its too steep I'll just do the job myself.

-Joe
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Old May 24, 2004 | 11:08 PM
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yep
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Old May 25, 2004 | 03:47 AM
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but no honda utilizes sodium filled valves.
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Old May 25, 2004 | 07:51 AM
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Originally posted by ERAUMAZDA
Granted, the honda and a lot of cars don't contain sodium filled valves, some do. If you know your chem you will know what sodium will do. Always research before u do things. My friend almost blew off his hand when a valve stem blew up!

In some exhaust valves, sodium is used as an agent for cooling the valves. Sodium-filled poppet valves are provided with a chamber that is formed by the hollow stem that extends well up into the valve head. At operating temperatures, the sodium becomes a liquid and splashes up and down inside the hollow valve stem. The sodium is an effective agent that serves to transfer the heat from the hot exhaust valve head through the stem and valve guides and to the engine cooling system.
your friend should have been wearing proper PPE, and then he wouldn't have those incidents!
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Old May 25, 2004 | 08:52 AM
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Originally posted by VietFC
but no honda utilizes sodium filled valves.

No...not that I am aware of.
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Old May 25, 2004 | 08:53 AM
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Originally posted by fastrotaries
your friend should have been wearing proper PPE, and then he wouldn't have those incidents!

Sorry, there were no bomb suits around in the shop that day.
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