ok guys... This is my first attempt at building any kind of turbo manifold. It's almost complete just have a few more welds to do as you can see. Let me know what you think.

 

You should clean the pipes before you weld. Looks good though for a first try.

 

Looks pretty good for the first try on a ramhorn.

 

Looks a bit rough, but like others said, not bad for your first try. Definitely clean your pipes, and get a gas lense. Post some inside the collector shots.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RC000E &raquo;</TD></TR><TR><TD CLASS="quote">Looks a bit rough, but like others said, not bad for your first try. Definitely clean your pipes, and get a gas lense. Post some inside the collector shots.</TD></TR></TABLE>

welds look realy hot , did you back purge it at all ?

 

new pic... it's blurry due to it being on a camera phone and yeah we aren't done cleaning up under the hood. LMK what yall think.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RC000E &raquo;</TD></TR><TR><TD CLASS="quote">Looks a bit rough, but like others said, not bad for your first try. Definitely clean your pipes, and get a gas lense. Post some inside the collector shots.</TD></TR></TABLE>

I'll say this because its been awhile since I welded on sch10 with out cleaning it. I just actually had to weld on sch10 uncleaned ( testing my torch out ) and I'll say this. Getting that nice stainless color is definitely harder. You guys really need to start cleaning that pipe, its just so much better in the end.

Cleaning ftw


Anyways cleaning helps to see the haz, and to tell if your running to hot or not. From the pics I see some brown areas which means your gas coverage is not that good.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RCautoworks &raquo;</TD></TR><TR><TD CLASS="quote">




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Do you notch your wg pipe to fit the collector right or cut it straight and fill in the hole with dookie?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">

Do you notch your wg pipe to fit the collector right or cut it straight and fill in the hole with dookie?</TD></TR></TABLE>

No its actually cut on a slant ( not a perfect circle ) , then a piece of metal is cut out shaped like a triangle. And is placed over the hole, then welded over.

 

seems like more work than just notching the pipe, no?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">seems like more work than just notching the pipe, no?</TD></TR></TABLE>

No you're missing the point, the pipe is notched as well to fit around the collector. There is a small piece cut above that hole, then a piece of metal is angles towards the exhaust tube, so air can flow in a little better, rather then making that 90 degree turn.

So after the pipe is notched, there is still about a finger sized hole that we cut out so the air can flow better into that pipe.

 

Interesting, got any pics of the inside of one?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">Interesting, got any pics of the inside of one?</TD></TR></TABLE>

Nope, I can get you some on the next one we build, it would be hard to see anything. I can send you pics before I weld anything on, but getting a pic with the wastegate tube on there would be difficult.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">

Do you notch your wg pipe to fit the collector right or cut it straight and fill in the hole with dookie?</TD></TR></TABLE>

It's probably pointed downwards, that's how I make them. We have a tubing notcher though so I didn't need to add a filler piece. -&gt;

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by david@didrace.com &raquo;</TD></TR><TR><TD CLASS="quote">
It's probably pointed downwards, that's how I make them. We have a tubing notcher though so I didn't need to add a filler piece. -&gt;
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It is angled down slightly, the word was on my tongue that I wanted to use, its more cut out in a tear drop shape then a regular hole.

Dave I think your manifold ate a brass fitting.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RCautoworks &raquo;</TD></TR><TR><TD CLASS="quote">Dave I think your manifold ate a brass fitting. </TD></TR></TABLE>

That would be my high tech backpurge setup, all that is missing is the tape.

 

put the manifold on the car, and did a baseline before tuning again... wanted to compare the difference between the cast log style manifold he had on his car compared to my manifold. without touching anything we saw a 30hp gain just from switching the manifold. still not done tuning, we stopped at 549hp. here's the vid

http://www.youtube.com/watch?v=BLPU4kySJ24

 

New numbers... made 572whp but unfortionately the oil pump took a ****, and needs a 5bar map. I'm surprised this thread doesn't have much more talk in it.