manifold and turbo pic

[e15+15]

Made my own manifold, what do you think about it?

Is the place for the wastegate ok ?


http://img118.exs.cx/img118/9715/turbogert20059ps.jpg

http://img118.exs.cx/img118/5780/turbogert20067ev.jpg

http://img118.exs.cx/img118/3262/turbogert0057an.jpg

http://img118.exs.cx/img118/8927/turbogert0079px.jpg

http://img118.exs.cx/img118/1928/turbogert0080sf.jpg

http://img118.exs.cx/img118/122/turbogert0090vi.jpg

[matt325is]

WOW!, that looks awesome man. What kind of turbo are you using? Are you planning on routing the wastegate back in? or leave it atmospheric? Keep up the good work!

matt

[iXer]

In your opinion, what compromises did you have to take when designing the manifold?
Is it your first manifold?
Cool downpipe, looks shiny! :D

I saw your thread : http://www.e30tech.com/forum/showthread.php?p=49077
But it doesn't say what you bought.

[iflytii]

Nice! Did you make the flange yourself too?

[Flip_Side_the_Pint]

that looks awesome!!!!!!!

How long did it take for you to make that? I can't wait to hear what your spool up is like...

[e15+15]

pictures are bigger now thanks,

So the place where the wastegate is going to be, is it ok?

I make a flex downpipe for it to go in the exhaust

my first but not the last one

a few days welding is in it

T3/T4 Turbo T04 "O" .50 / .70 ~ V-BAND Sorry guys i now how you think about XS-POWER but the price was oke to me, and it is my first project!

[Flip_Side_the_Pint]

where you put the wastegate should work really well.

[iXer]

I think the wastegate is placed very good!
A few things could be made better, but you can compensate that with more boost! :D
About the only two things I can come up with that could be improved with the turbo and wastegate where they are placed right now:
- Equal length tubes from each port into the collector
- Narrower collector for faster gas flow into the turbine

Nice work!

- Mattias

[powerpak]

youre going to grind the welds in the collector mouth i guess?

not too funny if something comes loose and crashes into your new turbo..

nice work otherwise! :)

[dk]

- Narrower collector for faster gas flow into the turbine

*nod* that was going to be my only comment, have the collector line up with the inside edge of the flange rather than the outside. good luck completing your project :)

[Giga Shadow]

Looks awsome.
Where did you get the flanges to the head?

[diegom6]

the flanges are not hard to do em, take time and patient!

Awesome downpipe! love it!!! :P

[TCD]

Can you explain the fabrication of the collector? Looks like plaster of paris.
Thanks,
todd

[diegom6]

Can you explain the fabrication of the collector? Looks like plaster of paris.
Thanks,
todd

what you mean that looks like "plaster of paris"?? don't get it :?

[Flip_Side_the_Pint]

Can you explain the fabrication of the collector? Looks like plaster of paris.
Thanks,
todd

what you mean that looks like "plaster of paris"?? don't get it :?

p[laster of paris is a clay/cememnt like molding medium that is used to scult statues and stuff....

[draculia]

i like everything but the collector. what i would do in your situation is hack off the current collector and from that point make it into a 6-2-1 design. the collector should be about 75% of the total labor time, and is an extreme pain in the ass, especially a single turbo straight six. even if you smooth out the welds in the collector the fact that you didn't taper the tubing into just the opening of the turbo flange will cause a huge decrease in efficiency.

its a good starting point, but i think you will definately benefit and be much happier with a slight design adjustment.

[swartz]

sweet work....how did u make that downpipe? did u buy stainless bends?

[Madhatter]

has anyone done any real study (well tests?) into just how efficient the log style manifolds are (like for instance the 524td one) compared to others? it would be a hell of a lot easier to copy, and if the difference in efficiency isnt going to equate to significant drop in performance (talking power here arent we), i dont see why more people dont copy it. Compact and easier to make, probably cheaper too considering you dont need as many bends.

Im kinda thinking i might build one (if i have enough spares) and compare it on the dyno.

[SpeedDemon]

Very Clean and nice .. GREAT JOB :!:

[bawareca]

Nice one , good job :wink:
Here's mine for M42 , and one for M20 coming next month.
http://bmwpower-bg.net/forums/files/headers2.jpg
http://bmwpower-bg.net/forums/files/turbo-in-place.jpg

[screaming_bmwe30]

where are you guys getting your pipe? can you get that thick stuff at a local plumbing place, or is that header pipe you are using? I am definately going to make a manifold, but i just need to find the materials.

Can't you get the flange off of Stahl headers?

[chbimmer]

looks nice.....i wish i had a garage local to do somthing like that. i have to travel an hour and a half to get to a shop

[screaming_bmwe30]

I forgot to add...

I would cut the flange between each runner...just for thermal expansion (helps avoid cracking)

Also...like others have said, the collector needs to align with the inside hole of the flange, not the outside of it...because the exhaust gasses are going to collide with the flange, and then cause backpressure. Also...the enormity of it will cause the gases to slow to a crawl and loose the befits of having all of the pulses meeting in 1 collector.

glad to see someone finally tackle the 6 cylinder. A four cyl. would sure be easier :)

[draculia]

most people use mcmaster-carr.

stahl does have the flange, its a 3/8" thick flange though. you shouldn't have trouble with warpage, but you might. after fabrication i would at least cut the flange in half. luckily the m20 uses the composite gaskets which are more fogiving with warpage. just keep the flange bolted down at every point when welding.

[e15+15]

http://img52.exs.cx/img52/4598/turbogert20055ab.jpg

http://img52.exs.cx/img52/8339/turbogert20062sz.jpg

http://img52.exs.cx/img52/1820/turbogert20074ng.jpg


I would cut the flange between each runner...just for thermal expansion (helps avoid cracking)

Here you are !!!!!

[diegom6]

http://img52.exs.cx/img52/4598/turbogert20055ab.jpg

http://img52.exs.cx/img52/8339/turbogert20062sz.jpg

http://img52.exs.cx/img52/1820/turbogert20074ng.jpg


I would cut the flange between each runner...just for thermal expansion (helps avoid cracking)

Here you are !!!!!

you used the same shit as me to paint it! :D

[schmick325]

looks great but how do you change the spark plugs on cylinders 1 and 2 ?

[Madhatter]

unbolt the turbo i would say.

[diegom6]

unbolt the turbo i would say.

hehe, my crappy adpater along wihtt he external wastegate and 3" downpipe let me check and change the spark plugs with out major problems!

It's all about taking care not blcoking the OEM parts

[chbimmer]

thats what is cool about my Log manifold is that i can change the plucs in like 5 to 10 mins.

[e15+15]

made my own oil return and feed flange.

1/8 in and 1/2 out

http://img123.exs.cx/img123/6284/turbogert27yn.jpg

to chance the plugs is one hour, flex exhaust and four bolt out.

[diegom6]

made my own oil return and feed flange.

1/8 in and 1/2 out

http://img123.exs.cx/img123/6284/turbogert27yn.jpg

to chance the plugs is one hour, flex exhaust and four bolt out.

I had to do the same, looks similar mine as yours! congrats! :P

[screaming_bmwe30]

when i used to unbolt the turbo...i didn't even remove the lines...i just propped the turbo out of the way slightly so i could get to the plugs.

As far as the stahl header flanges...it's true they are 3/8 thick...but with a tig welder, and quick welds...hopefully i can keep it relatively flat. I need to get my car running before i spend any more money though...which is why i'm holding off on making this new mani.