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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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06-20-2017, 11:00 AM | #15 |
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I had success on a slip joint years ago using Acousti Seal. Its basically a black tar that gets really thick under heat https://www.turnermotorsport.com/p-1...ound-5oz-tube/
I am looking at the groupe s header and will get a tube of this stuff if I go in that direction to seal the slip joint
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06-20-2017, 11:07 AM | #16 |
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Did you have to pull the slip joint apart to apply it? Mine's been on for 3 years so it may not want to come apart. I guess new would be the time to do it.
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06-20-2017, 11:10 AM | #17 | |
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Quote:
From back in my Audi days the commonly referenced advice was to have 1 flex pipe somewhere in the system which most people ran it in the downpipe. Maybe it is because they use a cast manifold design but for welding the slip joints shut or on any other header without them would running a flex pipe in the front pipe or somewhere else suitable be a good idea?
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06-20-2017, 11:31 AM | #18 |
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The Acousti seal looks like a good idea, I don't know how long that would last for though?
@Detroiter, I think UEL headers are more susceptible to thermal stress due to their shape, the longer runners are going to expand more than the short. Most UEL headers have a expansion joint, the only exceptions I know on the top of my head are JDL and FT86SF headers. I'm surprised this subject doesn't pop up more often on here. It doesn't take long to find a ton of threads on Impreza forums. |
The Following User Says Thank You to Varelco For This Useful Post: | Detroiter (06-20-2017) |
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