M50 Aluminum Manifold Plate.. direct port nitrous, custom manifold....

[mtbdieter]

i had a friend draw this up in CAD and got a tester piece and a final piece cut from 1" aluminum plate, i went with 1" to be able to plumb nozzles in from the bottom side of manifold for a clean look rather discreet. if you are looking to smaller they are also cutting some for me from .5" plate to add a little volume to runner. if anyones interested we can arrange through paypal $110 for .5 and $245 for 1" thick. the picture is of my 1" plate as well as the .125 ss plate i had cut as a test piece.

[Colby Colbs]

Is this an add or...?

[mtbdieter]

Not sure, input from people as well as to make a template available. I looked online to find something to plumb nozzles into and came up with nothing, other than I believe maximum psi's intake with injector bungs and fuel rail. So if this belongs somewhere else let me know.

[black bnr32]

what are you doing for a gasket?

[mtbdieter]

I will be using the factory style o_rings on the intake side an Orange rtv engine side. People have mixed emotions on rtv but I have never ran into a problem with rtv like I have with paper, cork, or rubber gaskets.

[BavarianLove]

cnc some ring grooves on both sides and your golden.

[Colby Colbs]

It should be CnC'd on both sides if you ever expect to sell one at thoes prices. You would have to give them away if for people to want to do that.

[5mall5nail5]

I will be using the factory style o_rings on the intake side an Orange rtv engine side. People have mixed emotions on rtv but I have never ran into a problem with rtv like I have with paper, cork, or rubber gaskets.

Run factory OBD1 gaskets on both sides.... this drawing is already available right in your neighborhood.

[mtbdieter]

Run factory OBD1 gaskets on both sides.... this drawing is already available right in your neighborhood.

k thanks


It should be CnC'd on both sides if you ever expect to sell one at thoes prices. You would have to give them away if for people to want to do that.

aluminum is not cheap, and the water jetter is $150 an hour. do the math..

[5mall5nail5]

k thanks



aluminum is not cheap, and the water jetter is $150 an hour. do the math..

I'm doing math and your rates are crazy high.

http://voytilla.com/gallery/albums/userpics/10003/normal_DSC00927.JPG


Aluminum is prob one of the least expensive metals right now

[Ragnorak]

I'm doing math and your rates are crazy high.

http://voytilla.com/gallery/albums/userpics/10003/normal_DSC00927.JPG


Aluminum is prob one of the least expensive metals right now

The material costs are probably higher than machining time (~$40 for 1/2"x3"x3' and ~$70 for 1"x3"x3'). Even so, it doesn't take a water jet that long to cut the piece. Even at only 6 an hour, you're looking at $25/piece.

[mtbdieter]

I'm doing math and your rates are crazy high.

http://voytilla.com/gallery/albums/userpics/10003/normal_DSC00927.JPG


Aluminum is prob one of the least expensive metals right now

who is selling these?

well then i need a new shop, cause they billed me for 1 hour at $150 /hr

[5mall5nail5]

The material costs are probably higher than machining time (~$40 for 1/2"x3"x3' and ~$70 for 1"x3"x3'). Even so, it doesn't take a water jet that long to cut the piece. Even at only 6 an hour, you're looking at $25/piece.

Material cost is definitely not higher than machine time. Consider that McMaster Carr sells a stock of 6' x 1" x 2" aluminum for $85. Truth is 1" is the wrong thickness to be using (you need only like 3/8 - 1/2". I 'd go 1/2" so you can tap 1/8 NPT holes in it perpendicular though there are 1/16 NPT nitrous direct kits). A 6' length of 1" x 1/2" is $56. That's McMaster which is NOT the cheapest.

[mtbdieter]

so my math is right on... i just need a new place haha

[5mall5nail5]

who is selling these?


I dunno :devillook


so my math is right on... i just need a new place haha

No - see above, your math is off.

[mtbdieter]

but i do agree and appreciate the info... smaller jets makes material cheap and cleaner install, thanks

i paid $159 tax for the jetting, and $58.30 for the bar of aluminum. so over paying for metal and flat out raped on the jetting. machine shop and bulking bar is going to be the way to go.

[5mall5nail5]

but i do agree and appreciate the info... smaller jets makes material cheap and cleaner install, thanks

99.99% of methanol injection nozzles fit into 1/8 NPT holders. Most direct port nitrous setups are 1/16 NPT. If you run 1" thick you not only raise the heck out of the manifold which requires all piping and plumbing and potentially hood work to be adjusted, but you also move the fuel injector away from the valve by a good amount. If you wanted to try this I would try and do it with as thin a plate as possible. Leave the top side smooth and machine grooves in the bottom side for OBD1 O-rings (the RTV idea will not be reliable and you'll be squishing it into the port and sucking it into the engine easier).



i paid $159 tax for the jetting, and $58.30 for the bar of aluminum. so over paying for metal and flat out raped on the jetting. machine shop and bulking bar is going to be the way to go.

http://www.mcmaster.com/#catalog/118/3633/=fz1ond

[mtbdieter]

http://www.mcmaster.com/#catalog/118/3633/=fz1ond[/URL]

thanks for the link btw

the motor is a 30* angle. even @ 1inch you have less than 1 inch of rise. i can verify 2+ inch of clearance between m50 and strut bar.. i did eliminate that concern

[Clubsport]

who did the water jetting?

[5mall5nail5]

thanks for the link btw

the motor is a 30* angle. even @ 1inch you have less than 1 inch of rise. i can verify 2+ inch of clearance between m50 and strut bar.. i did eliminate that concern

Right but look where your brake booster is. You're moving 1" out of the head, which moves the intake manifold closer to the drivers side of the car. Also consider your fuel rail line lengths.

The other thing you'll notice is that the fuel injector wiring harness box clips onto the injectors as a whole, but has cables coming out of it for the coil packs. Those need to reach.

http://www.koperformance.com/BMW/products/engine/manifolds/11-61-1-735-727_m50_manifold_basic_conversion_kit5_installed_6 00x450.jpg

[mtbdieter]

Good point, I actually called a local machine shop this morning to see about revising the drawing with rings and machining cost with and without supplying material. The jetting was done locally, I don't wanna throw their name out there is the price is that bad haha, its a friends workplace

[Ragnorak]

Good point, I actually called a local machine shop this morning to see about revising the drawing with rings and machining cost with and without supplying material. The jetting was done locally, I don't wanna throw their name out there is the price is that bad haha, its a friends workplace

It took them an hour to jet that out? If you only did one it makes sense I guess, setup time can be a pain. If you did 10+ you'd see much cheaper rates.


Material cost is definitely not higher than machine time. Consider that McMaster Carr sells a stock of 6' x 1" x 2" aluminum for $85. Truth is 1" is the wrong thickness to be using (you need only like 3/8 - 1/2". I 'd go 1/2" so you can tap 1/8 NPT holes in it perpendicular though there are 1/16 NPT nitrous direct kits). A 6' length of 1" x 1/2" is $56. That's McMaster which is NOT the cheapest.

Yes, if you're only talking about one piece. Modern water jets in MACHINE time are quick. If you're also paying setup time for one piece and not a production run, that's where your economics can fail.

[5mall5nail5]

Yes, if you're only talking about one piece. Modern water jets in MACHINE time are quick. If you're also paying setup time for one piece and not a production run, that's where your economics can fail.

My economics are juuuust fine. Kind of done this sort of thing before.

[mtbdieter]

Yes, there was no exageration on my costs for that piece. After having a new piece cut with rings and on CBC instead of jet I will post pics and breakdown. Thanks to those with positive feedback +1, and for the negative people I grant u a -1 and revoke your post count haha :)

Cnc not CBC. I hate New phones

[PEI330Ci]

Personal preference....but I would never put a nitrous nozzle down there.