Search found 76 matches

by Bingo
Fri Oct 27, 2023 7:12 pm
Forum: Fuel system
Topic: 3D printing velocity stacks ..
Replies: 22
Views: 5522

Re: 3D printing velocity stacks ..

The goal was to increase performance and spend as little as possible.

Performance was measured and modeled by flow, pressure and air temp.

The metal mesh filters were $45.00.

The velocity stacks (2) were .12 cents.

A little US ingenuity goes a long way.
by Bingo
Sat Oct 21, 2023 12:35 pm
Forum: Fuel system
Topic: 3D printing velocity stacks ..
Replies: 22
Views: 5522

Re: 3D printing velocity stacks ..

A friend that is an engineer at Cummins Diesel enjoyed the video.
He agrees with both of you !
by Bingo
Sat Oct 21, 2023 12:52 am
Forum: Fuel system
Topic: 3D printing velocity stacks ..
Replies: 22
Views: 5522

Re: 3D printing velocity stacks ..

Glyn and Rob’s

Thank you for your advice.

I have ordered Coverings for the metal mesh covers pictured of a polyester water repellant fabric with uniform micron openings that stops dust particles.

Should arrive in a couple of weeks.
by Bingo
Thu Oct 12, 2023 11:30 pm
Forum: Fuel system
Topic: 3D printing velocity stacks ..
Replies: 22
Views: 5522

Re: 3D printing velocity stacks ..

No room for the MK10 box see pic.
Stock intake heats up from the header and acts as a hot box.
There isn’t path past the radiator to fresh cool air.
by Bingo
Thu Oct 12, 2023 11:24 pm
Forum: Fuel system
Topic: 3D printing velocity stacks ..
Replies: 22
Views: 5522

Re: 3D printing velocity stacks ..

The filter is made up of 3 metal meshes.
The inner mesh is stainless steel 70/80 mesh. More than adaquate.
by Bingo
Tue Oct 10, 2023 1:53 am
Forum: Fuel system
Topic: 3D printing velocity stacks ..
Replies: 22
Views: 5522

Re: 3D printing velocity stacks ..

1st model is horn with smooth sides. More turbulence and has areas of high flows

2nd model is horn with dimples. Uniform flow over a greater area in the carb inlet.
by Bingo
Tue Oct 10, 2023 1:47 am
Forum: Fuel system
Topic: 3D printing velocity stacks ..
Replies: 22
Views: 5522

Re: 3D printing velocity stacks ..

Should look like the screen in this pic


http://www.pjmotorsports.com/images/bv_img1371.jpg
by Bingo
Mon Oct 09, 2023 4:13 pm
Forum: Fuel system
Topic: 3D printing velocity stacks ..
Replies: 22
Views: 5522

Re: 3D printing velocity stacks ..

Solidworks shows the effect of the bend is significant. The bend is is less of a degree than the stock plenum. I will look at what a 1 1/2” straight stack flow looks like. Their are advantages to a taller stack .. a positive effect on top end performance.
by Bingo
Mon Oct 09, 2023 3:39 pm
Forum: Fuel system
Topic: 3D printing velocity stacks ..
Replies: 22
Views: 5522

Re: 3D printing velocity stacks ..

I need to run the simulation with th3 dimples.
by Bingo
Mon Oct 09, 2023 3:36 pm
Forum: Fuel system
Topic: 3D printing velocity stacks ..
Replies: 22
Views: 5522

Re: 3D printing velocity stacks ..

Here is a flow simulation .gif from Solidworks.