Ho-made down pipe

[fastasleep]

Here is the DP I made from the pipe and steel I bought from a vendor from here on the board. No laughing, however! I am not a welder; I am a guy who adheres two pieces of metal together using a welder (barely).

I am using a used Turbonetics Evolution External WG. Let me know what you guys think.

-Les

[cordes]

Wow, that looks really nice.

[WVRampage]

That doesnt look to bad at all.

[fastasleep]

Thanks! Welding the inside of the pipe on the short side radius sucked. Any pointers on how to do that?

-Les

[Aries_Turbo]

looks good. just make sure you port that wastegate hole in the turbine housing heavily so that it flows enough.

Brian

[turbovanman²]

Is that a good place to vent/feed the external wastegate?

Looks good though,

I would make sure you use the correct springs for the minimum opening, looks like it wil be a b*tch to get at later. BTW, the instructions are wrong for the springs, I found that one out the hard way, lol!

[fastasleep]

I really don't know if it is the best configuration. I do know that making it was pretty inexpensive, so if I have to change something it won't cost a ton of money. Hey, if it doesn't work I'll try something else. I am planning to vent the WG further down, but not reintroduce it to the main exhaust dp.
This is a 7 psi spring, so we'll see how it works out.

-Les

[Aries_Turbo]

the only better way that i can see to integrate an external wastegate to the turbine housing is to bore a hole tangential to the curvature of the turbine housing and weld in a pipe with a flange. basically make the wastegate inline with the exhaust flow so that expelling the gasses are easier. you have it at a right angle which will work but youll have to make sure all the passages from the turbine housing are ported enough that you dont get creep.

heres a thought that i just had about wastegates integrated back into the downpipe.... pipe it so that the dump tube is welded into the DP similar to an exhaust evac system... so the exhaust potentially draws vacuum when the wastegate is open, drawing the gasses out better.

Brian

[t3rse]

like 'is?

http://hubcap.clemson.edu/~dberry/2....gate%20003.jpg
http://hubcap.clemson.edu/~dberry/2....ails%20003.jpg

[fastasleep]

I think you are right about the angle; the air has to make a 180 to waste, but I was limited on room. We'll see if it works, but if not I'll make changes.

BTW Simon, I put the engine in the van this morning and all looks good. I have to take the DP off to make a small adjustment, but it shouldn't be that hard to take off.

-Les

[GLHS592]

Looks professionally made.

[turbovanman²]

I think you are right about the angle; the air has to make a 180 to waste, but I was limited on room. We'll see if it works, but if not I'll make changes.

BTW Simon, I put the engine in the van this morning and all looks good. I have to take the DP off to make a small adjustment, but it shouldn't be that hard to take off.

-Les

Cool, keep us posted and more pics.

[t3rse]

I think you are right about the angle; the air has to make a 180 to waste, but I was limited on room. We'll see if it works, but if not I'll make changes.

BTW Simon, I put the engine in the van this morning and all looks good. I have to take the DP off to make a small adjustment, but it shouldn't be that hard to take off.

-Les

i'm sure it'll work fine. may be a pain to change the starter in car though....

[fastasleep]

The only problem I had with putting the starter on was having to wrap it with heat shielding after I had it into position. I had to take the heat shielding off to remove the solenoid wiring because I kinda have to manuever it into place, then reroute the wiring.
I have very little left to do. I ran out of gas for the welder, so I have to take the bottle in tomorrow. I'll just weld the O2 into place at work. I took the DP off in about 10 minutes before I sat the van off the jack stands; it wasn't too bad.
I put the new radiator in this afternoon. I don't have much room, but it is going to work well. I have to figure out hoses for the top and bottom.

[Aries_Turbo]

like 'is?

http://hubcap.clemson.edu/~dberry/2....gate%20003.jpg
http://hubcap.clemson.edu/~dberry/2....ails%20003.jpg

yeah more or less. i dunno if id put it there or lower down.

i wonder if it would make a difference if it was on the inside or the outside dia of the bend.

Brian

[2.216VTurbo]

Nice arrangement Way to make a TIII/univerasal housing work on a TI/TII manifold Can you get any more heat out of your welder or are you maxed out? If she's pegged on WOT, slow down your wire some for a little better penetration.

[turbovanman²]

If she's pegged on WOT, slow down your wire some for a little better penetration.

[2.216VTurbo]

One track mind Simon

Didn't occur to me when I wrote it it *could* be perverted by a certain kinda individual Fatherhood hasn't tamed your urges much I see

[turbovanman²]

One track mind Simon

Didn't occur to me when I wrote it it *could* be perverted by a certain kinda individual Fatherhood hasn't tamed your urges much I see

Hehehehe. I had a kid, I am not dead,

[t3rse]

yeah more or less. i dunno if id put it there or lower down.

i wonder if it would make a difference if it was on the inside or the outside dia of the bend.

Brian

inside it runs down a bit before terminating, so it exits before the next bend. due to packaging there really wasn't any other way....

realistically, to do it right the pipe would need to reduce in diameter to increase gas speed, but then i'd have a restriction!

btw, here's a pie cut piece i just did for an i/c bend. 100* with 5 20* sections. it is very smooth inside.