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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 09-19-2009, 12:26 AM   #21
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I have always used the 75/25 for Mild and SS.On Aluminum GMAW I use 99% Ar & a wiff off Helium to "get the heat moving",if you take my meaning.
-G-
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Old 09-19-2009, 12:42 AM   #22
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I have always used the 75/25 for Mild and SS.On Aluminum GMAW I use 99% Ar & a wiff off Helium to "get the heat moving",if you take my meaning.
-G-
hmm my dad has a 75 25 tank for his mild wire MIG, i should try it before i give up on mig forever. Thanks.
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Old 09-19-2009, 01:18 AM   #23
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What is a “bounding box”?

Do you have to use 75/25 when MIGing SS wire? I use straight argon (from the TIG) with poor results but assumed it was the cheap HF machine...??
My "bounding box" is basically a box that has the dimensions of the space I have to work with.

Also, you want the CO2 for penetration. I take it you didn't get full pen with just argon?
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Old 09-19-2009, 01:20 AM   #24
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Here's a closer design. The goddamn gasket still hasn't shown up. I'm going to see if I can get it local because I'm tired of waiting for it...

In this one, the runner spacing is close, but still not there. 1/4 are too short now...
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Old 09-19-2009, 01:26 AM   #25
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Here's design 4.
This one 1/4 are a little longer then 2/3, by only about 1.5inches. If my port spacing is too far apart I can make the difference even smaller with this design.

The problem is it might be too close to the PS. I can move this design easily farther from the motor, and put the turbo where the airbox was. The thing is I think by then the "candy cane" bends to add length may end up being redundant. I need to get the measurements to see where it would put it.

If the turbo inlet ends up with the center between the PS and A/C it'd be real easy to run a cold air intake tube.

I'm not going to do anything more until I get the header gasket (and double check my port spacing).
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Old 09-19-2009, 02:07 AM   #26
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Is that from Dave Chappelle?

[/I]
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Originally Posted by TurboTim View Post
Haters wanna hate; lovers wanna love...

Werd.

What is a “bounding box”?

Do you have to use 75/25 when MIGing SS wire? I use straight argon (from the TIG) with poor results but assumed it was the cheap HF machine...??
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Old 09-19-2009, 01:39 PM   #27
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Remember that you have to still make this thing,too sinuous of a design will require you use dozens of El's ground/cut to fit.With that being said,keep up the good work.So I can steal your design.
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Old 09-19-2009, 11:50 PM   #28
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Remember that you have to still make this thing,too sinuous of a design will require you use dozens of El's ground/cut to fit.With that being said,keep up the good work.So I can steal your design.
The last one is actually (if each runner laid flat) a 45, a 90, then another 45, followed by straight tube.
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Old 09-20-2009, 12:16 AM   #29
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Quote:
Originally Posted by mafoose View Post
Here's design 4.
This one 1/4 are a little longer then 2/3, by only about 1.5inches. If my port spacing is too far apart I can make the difference even smaller with this design.

The problem is it might be too close to the PS. I can move this design easily farther from the motor, and put the turbo where the airbox was. The thing is I think by then the "candy cane" bends to add length may end up being redundant. I need to get the measurements to see where it would put it.

If the turbo inlet ends up with the center between the PS and A/C it'd be real easy to run a cold air intake tube.

I'm not going to do anything more until I get the header gasket (and double check my port spacing).
NOW we're talking
Looks great
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Old 09-20-2009, 01:32 AM   #30
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Those runners merging at such steep angles will have a dramatic effect on flow. You want a radial style 4-1 collector. Try something like this

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Old 09-20-2009, 12:22 PM   #31
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Originally Posted by mafoose View Post
Here's a closer design. The goddamn gasket still hasn't shown up. I'm going to see if I can get it local because I'm tired of waiting for it...
You could search for BP head flange. There's a CAD file here somewhere I saw recently. I was going to post a .pdf of the Weirtec flange I measured until I saw that one already posted.

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Is that from Dave Chappelle?
Yep.
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