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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 03-27-2009, 11:19 AM   #1
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Which is recommended by the masses in here to hold the parts of my exhaust together: V-bands or flanges and gaskets?

My exhaust needs some work and I want to replace the cheap clamps I have on there now while I'm at it. I'm kind of leaning toward the V-bands but they are a lot more expensive so if anybody can give me a good reason to go with the flanges I'll gladly keep some of my money.
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Old 03-27-2009, 11:29 AM   #2
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V-bands would be my choice, but I'm too cheap. The 3-bolt 3" collector flanges and gaskets come up on eBay for dirt cheap if you're patient. For example I picked up two copper gaskets and four flanges for $24 delivered to do my magnaflow muffler install and didn't use but half of it. Ended up putting the other copper gasket at the cat/downpipe.

The advantage of vbands is adjustability, simple install/deinstall, and good seal. That said, I've never had any issues with my flanges.
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Old 03-27-2009, 12:34 PM   #3
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are we talking about down pipe to the turbo? Or down pipe to cat, to the rest of the system? After watching a few cars at Laguna Seca having to re-tighten there flanges after a run I would recomend V-band for the turbo to down pipe. but for the rest of the system I would use slip fit with a preformed band clamp. We use these in the trucking industry all the time without fail. I have used them on my Mustang, TR4, 240Z, etc. Then you don't have to weld on flanges, buy expensive V-clamps, or worry about gaskets.

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Old 03-27-2009, 12:49 PM   #4
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What kind of tool do you need to produce a slip fit on your pipes? I tried the impact gun spreader on the 16ga steel and it couldn't do it at 90cfm. Otherwise you're buying and welding slip fits.
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Old 03-27-2009, 02:15 PM   #5
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I'm talking about the downpipe to cat connection, and the cat to axle-back connection. I built my exhaust in three parts.
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Old 03-27-2009, 03:57 PM   #6
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V-bands is what I would recommend.
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Old 03-27-2009, 04:10 PM   #7
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Once you go V-band you never go back.
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