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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 01-28-2008, 03:54 PM   #1
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Default Decided on the vendor ... now the options

Looks like BEGI is getting my business. FM did nothing wrong, avalibility of parts had a large part in my decision. I was on the fence, this just sealed the deal.

Down pipe, SS or mild?
Manifold, ceramic coated?

Doing both ceramic and SS DP will stretch the budget a little too thin. I'm thinking one or the other. Which would you choose and why?

I'm leaning towards ceramic coating the mani and using a mild steel DP.

Jay
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Old 01-28-2008, 03:56 PM   #2
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if it were me I'd go the other way around.
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Old 01-28-2008, 03:56 PM   #3
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I woudl do ss, and coat the manifold myself with some bbq paint or some 2500 deg paint
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Old 01-28-2008, 04:03 PM   #4
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What are the advantages of SS over mild steel on the DP?

I don't think I could get the manifold coated locally as cheap as BEGI will do it. I also question the durability and effectiveness of BBQ paint

Thanks for the inputs so far.
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Old 01-28-2008, 04:04 PM   #5
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I wouldn't worry about coating the manifold. Cast iron lasts for ever. SS DP, your call. I'm not going with SS, but California is nice that way.
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Old 01-28-2008, 04:10 PM   #6
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SS will keep more of the heat inside the pipes, so the bay is a tad cooler and it wont rust out.
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Old 01-28-2008, 04:11 PM   #7
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go get some Flameproof of whatever has the highest temp. Spray it, bake it. ANd your done. Or just save till you can get both.
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Old 01-28-2008, 04:16 PM   #8
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Jay,since you live in Alberta and the city floods the streets with salt in the winter,I would go with SS downpipe and just paint the manifold.
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Old 01-28-2008, 04:18 PM   #9
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Main reason to coat the manifold would be to retain heat, which would be worth it with a tubular manifold but since it's cast iron it retains that head already so there's really not a big advantage to coating it.

Do the SS downpipe and no ceramic coating on the mani.
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Old 01-28-2008, 04:18 PM   #10
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Quote:
Originally Posted by spike View Post
Jay,since you live in Alberta and the city floods the streets with salt in the winter,I would go with SS downpipe and just paint the manifold.
No salt on the roads here. I also never drive it in the winter, it's so low it'd get stuck on a skiff of snow.
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Old 01-28-2008, 04:32 PM   #11
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I did no coat on the manifold and a stainless DP. Both look great after 8000 miles.
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Old 01-28-2008, 04:42 PM   #12
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Mild steel pipe will last you maybe 3 - 5 years, SS will last you forever. Coating has no benefits except maybe aesthetic.
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Old 01-28-2008, 04:46 PM   #13
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Wrong
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Old 01-28-2008, 04:49 PM   #14
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My stainless dp looks nothing like new after one winter on salty roads, but if you don't drive on salty roads, it should stay nice looking. I can see more of my ceramic coated manifold than my dp when looking at the engine bay though.

cjernigan and I had a conversation about how the 304 stainless they use corrodes when exposed to salt, but it is supposedly possible to keep it nice if you clean it regularly.
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Old 01-28-2008, 05:06 PM   #15
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I'd go with the SS down pipe. Mine are looking pretty bad and I haven't even finished the install.

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Old 01-28-2008, 05:09 PM   #16
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oh teh sex0r

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Old 01-28-2008, 05:15 PM   #17
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Yeah yeah, mine used to look like that.
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But after last winter,
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Old 01-28-2008, 05:18 PM   #18
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no mater what you say, i still believe you park in a salt silo
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Old 01-28-2008, 05:19 PM   #19
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Well maybe Corky should have included that possibility in the design!
:gay:
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Old 01-28-2008, 05:27 PM   #20
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Order is been placed. SS downpipe and an uncoated manifold on the way.

Quick question. What size is the exhaust flange on the 1.6 DP? Is it 2.5" or does it step down to match the factory cat?
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