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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 01-22-2009, 06:14 AM   #1
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Default Project finishing questions!

So I got this 10lb flywheel, with the clutch I bought paid $100 for all of it. But with a turbo and six puck clutch is there any advantage or disadvantages to a lightweight flywheel? also does anyone know where to get a check valve for my brake booster?And should I use a gasket between a new manifold and my greddy turbo? and the metal coolant line that bolts by the manifold goes on the outside of the manifold right? sorry for all the ?s but I can't find definite answers I',m sure Ill be adding some more later
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Old 01-22-2009, 09:21 AM   #2
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A lightweight flywheel will mean a little more vibration and drivetrain shudder, and a lot faster revving in the lower gears. If you are making a lot of power the 4.10 rear gearing and lightweight flywheel will cause first gear to go by very quickly. That is a good thing if you can keep traction, and a bad thing if you can't.

It made an enormous difference on my RX7. I loved it. I am looking for a second-hand lightweight flywheel right now for the Miata.
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Old 01-22-2009, 09:34 AM   #3
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I won't spend the money on a flywheel, but I spent it on a knife-edged crank.

You can use a gasket, but you'll be happier in the long-run (or first week) if you get both surfaces decked so they're flat. Some people replace the gasket constantly, some don't...but I think just about 100% of us who go with surfacing don't have to deal with it and use the time we save to attract beautiful women.

I don't understand the coolant line question.
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Old 01-22-2009, 10:27 AM   #4
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I sold mine and put the dough towards something else. There is a demand for these from the non-boost crew.
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Old 01-22-2009, 12:03 PM   #5
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i dunno. I like motorcycle-like revability.
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Old 01-22-2009, 06:54 PM   #6
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If anybody has an extra lightweight flywheel, my wheezing, naturally aspirated 1.8 really needs one until I achieve the boost miracle.
Oh, yeah, and a strong used pressure plate...

Threadjacked!!! Sorry.
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Old 01-22-2009, 07:05 PM   #7
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I have no gasket between the manifold/turbo or the turbo/downpipe. My last setup had both gaskets....and both failed.

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Old 01-23-2009, 12:52 AM   #8
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yeah I know the coolant line your talking about, it goes on the outside because it always gets hung up when I try to pull off the manifold
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Old 01-23-2009, 12:57 AM   #9
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Quote:
Originally Posted by mazda/nissan View Post
yeah I know the coolant line your talking about, it goes on the outside because it always gets hung up when I try to pull off the manifold
I took mine and drilled the hole a little bigger so I wouldn't have that problem.



I asked myself the same question about the bracket when I was putting my new turbo stuff on.....then I thought about it for a minute.

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