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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 11-17-2006, 10:31 PM   #21
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well i am glad to see all of the intrest.. i think i may do stainless and mild, i know there are guys out there like me that are just cheap, and want something that is going to work, and be cheap, but maybe not the best u can get.

from all of this intrest i think i should be able to justify a batch of 10 or so sets, im going to do 5 dsm, and 5 t3/t4. The dsm desing im working on installing on my car right now, has the turbo hanging down like it does on a stock dsm, this way no clocking is needed, and if u wanted to, you could use the factory dsm o2 housing, i am using the dsm o2 housing insted of a down pipe. id say we will end up going ahead and making down pipes, and manifolds.

Thanx for all of your imput guys!
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Old 11-17-2006, 10:53 PM   #22
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Quote:
Originally Posted by TheBandit View Post
I certainly prefer Stainless, but even for mild, $100 for all the flanges and tubes is hard to do unless you like to use cheap flanges. Certainly interested to see what you can pull off.
-Michael-
THen your paying for labor materials for a complete log manifold of mild steel is less than 40 dollars
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Old 11-17-2006, 11:06 PM   #23
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I'd buy one.
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Old 11-18-2006, 01:07 AM   #24
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1.8 t3 top mount would do it for me... my JGS is crappy..... lets see what you can do!
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Old 11-18-2006, 02:29 AM   #25
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Loki- No matter how you look at it, the process to take the material and create it into a flange cost money. Yes, you could possibly get a large piece of 1/2 plate and the a length of straight tubing needed for $40, but no matter how you look at it, there is cost to create a part from the plate.
-Michael-
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Old 11-18-2006, 09:10 AM   #26
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Could you post a pic of the dsm location please and i would be interested to know how much it complicates the drain install. When you get her together.
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Old 11-18-2006, 01:44 PM   #27
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it hasnt been mocked up on the car yet, but as soon as i do, i will take lots of pics

as far as cost of machining, my dad's normal shop rate is 30 bucks an hour.. so if he makes 10 flanges, the cost of machining shouldnt be to bad
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Old 11-18-2006, 02:18 PM   #28
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With a cnc plasma cutter or other high tech cutter (water jet or laser) the flanges can be made very quickly and cheaply. So cheap in fact that you might be surprised... initial tool up is not cheap but high volume production can be.

Mark
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Old 11-18-2006, 02:41 PM   #29
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Quote:
Originally Posted by adbradley View Post
The dsm desing im working on installing on my car right now, has the turbo hanging down like it does on a stock dsm, this way no clocking is needed, and if u wanted to, you could use the factory dsm o2 housing, i am using the dsm o2 housing insted of a down pipe.
Just smacked myself in the forehead. What a fuggin great idea. I have this (otherwise worthless) crap laying around over here!

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i am using the dsm o2 housing insted of a down pipe.
Do you mean to say the D/P will be easier to fab up using the factory o2 housing?

Or are you going to dump it there?
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Old 11-18-2006, 05:14 PM   #30
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Default Here is what i have so far

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FRONT VIEW ABOVE
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SIDE VIEW

TOP VIEW
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FRONT VIEW FROM BELOW

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REAR VIEW FROM BELOW
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Old 11-18-2006, 05:17 PM   #31
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as you can see, using the stock DSM o2/housing, all u will need to connect to the cat from the turbo is a 45 degree bend and a 90 degree bend and straight back.
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Old 11-18-2006, 05:19 PM   #32
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as far as the oil drain goes, it should be able to run down at a 45 degree angle, then a 90 into the oil pan.. as long as you dont have a/c


for the compressor housing to fit, the main coolant feed, and the heater core line that runs under the manifold, will have to be relocated as well.. i know that corky bell makes a part for doing this and its not that costly.
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Old 11-18-2006, 05:32 PM   #33
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Default Oh here are some other parts i made

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I made a mount for my 5 dollar recirculating valve from a volvo i think, and a spout for the end of my compressor housing to attatch the intake pipe to.
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Old 11-19-2006, 12:49 PM   #34
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aww come on guys i put all those pretty pictures on page on, and no one has any comments??
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Old 11-19-2006, 01:34 PM   #35
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If it works, I guess it will be aright. The welds could certainly be a bit nicer. Using a TIG welder would really clean things up.
-Michael-
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Old 11-19-2006, 01:57 PM   #36
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Who gives a **** how it looks, as long as it works.
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Old 11-19-2006, 01:59 PM   #37
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I personally wouldn't buy a manifold with welds like that. I can make something just as good easily and the only reason I would buy something like that is if I didn't have the time to make my own flanges and get everything all put together. Your designs are fine but if you want to sell a product like that you might want to look into powdercoating/ceramic coating to hide the welds.

Then again if someone is building up a project and just want's to get on the road and you have a cheap manifold/DP combo for sale. I wouldn't give a damn what it looked like or what coating it had on it. Long as you can build a good strong product that won't have structural problems I'm sure you could sell 10 of them. Do look into Tig though, it would increase sales in the end for sure.
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Old 11-19-2006, 02:14 PM   #38
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I certainly care how something looks. If its worth doing, its worth doing write. So in response to Mr. D1 I give a f*ck how it looks.
-Michael-
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Old 11-19-2006, 02:46 PM   #39
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your write! but I think The Bandit is a lil jealous

I think the welds on the turbo stuff looks fine.
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Old 11-19-2006, 02:56 PM   #40
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Hehe, not sure what I would be jealous of.. the turbo stuff doesn't look too bad, but the manifold looks like poopy.
-Michael-
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