Update and improvements on my Oxy build
-
- Posts: 139
- Joined: Sat Oct 29, 2005 7:22 pm
Re: Update and improvements on my Oxy build
Looks good. Keep it coming.
-
- Posts: 14
- Joined: Wed Sep 25, 2013 3:00 am
Re: Update and improvements on my Oxy build
Agreed,- the Hammerite looks nice!
- grelland
- Posts: 990
- Joined: Fri May 13, 2005 2:47 am
Re: Update and improvements on my Oxy build
Thanks guys.
The last attempt resulted in some dust in the surface (my son opened the garage door before the paint had cured...) so we sanded it down once more, and laid down one more layer of hammerite. Looking forward to getting back to engine building again; not just sanding and painting....
The last attempt resulted in some dust in the surface (my son opened the garage door before the paint had cured...) so we sanded it down once more, and laid down one more layer of hammerite. Looking forward to getting back to engine building again; not just sanding and painting....
You do not have the required permissions to view the files attached to this post.
- grelland
- Posts: 990
- Joined: Fri May 13, 2005 2:47 am
Re: Update and improvements on my Oxy build
Hopefully last trial assembly:
I am also planning an air intake system that hopefully will reduce intake noise, so I had my son design a pair of air boxes. The 3d-printer is running:
Looking forward to the spring You do not have the required permissions to view the files attached to this post.
Re: Update and improvements on my Oxy build
I totally desire some kind of Air box system. I like the one CSP sells (For a type 4 in a 1303), but not the cost. Looking forward to what you come up with.
H2OSB
H2OSB
- grelland
- Posts: 990
- Joined: Fri May 13, 2005 2:47 am
Re: Update and improvements on my Oxy build
Nothing too fancy planned, but the intetion is to make a pair of airboxes and a cylindrical filer that connects them.
Here's the first airbox prototype after ca 6 hrs on the printer:
Here's the first airbox prototype after ca 6 hrs on the printer:
You do not have the required permissions to view the files attached to this post.
Last edited by grelland on Thu Feb 22, 2018 3:31 pm, edited 1 time in total.
-
- Posts: 14
- Joined: Wed Sep 25, 2013 3:00 am
Re: Update and improvements on my Oxy build
I hate to say it, but those intakes are way to small. It will restrict the air flow and rob power big time. My first boxes looked like this, and they alone (without being connected to anything) removed 10 hp! 116 hp with the boxes and 126 hp without.
- grelland
- Posts: 990
- Joined: Fri May 13, 2005 2:47 am
Re: Update and improvements on my Oxy build
Difficult to say from the pictures, but what were the dimensions on yours? I will find a drawing with measurements on my prototypes as soon as the designer (my son) is back from work
-
- Posts: 14
- Joined: Wed Sep 25, 2013 3:00 am
Re: Update and improvements on my Oxy build
My inlets were 63 mm. The drawing is a little different than the final result. I had to angle the snouts a bit, but the size remained,- still 63 mm. And that was to small!
- grelland
- Posts: 990
- Joined: Fri May 13, 2005 2:47 am
Re: Update and improvements on my Oxy build
Thanks. I need a new 3d printerflat4olsen wrote:My inlets were 63 mm. The drawing is a little different than the final result. I had to angle the snouts a bit, but the size remained,- still 63 mm. And that was to small!
Sent fra min SM-G950F via Tapatalk
- grelland
- Posts: 990
- Joined: Fri May 13, 2005 2:47 am
Re: Update and improvements on my Oxy build
Thank you. I checked the measurements on "my" box and it is actually slightly larger than yours. As mentionned; I am stretching the limits of our 3D-printer, so I will let it be for now.
I had a "look" internally in the air box: And with my current velocity stack design, I feel I get a lot of "dead" volume around and below the mouth of the velocity stacks, so my son made the following change: I think that looks much better, and the effective volume goes up inside the box.
Then we went on with the filter itself, and this is a rendering of the concept: The idea is to 3D-print the end caps, use turbo silcone hoses to connect to the air boxes, use carbon rods to connect the end caps, and finally use aluminum mesn and filter material around the outside.
I had a "look" internally in the air box: And with my current velocity stack design, I feel I get a lot of "dead" volume around and below the mouth of the velocity stacks, so my son made the following change: I think that looks much better, and the effective volume goes up inside the box.
Then we went on with the filter itself, and this is a rendering of the concept: The idea is to 3D-print the end caps, use turbo silcone hoses to connect to the air boxes, use carbon rods to connect the end caps, and finally use aluminum mesn and filter material around the outside.
You do not have the required permissions to view the files attached to this post.
- grelland
- Posts: 990
- Joined: Fri May 13, 2005 2:47 am
Re: Update and improvements on my Oxy build
Trial mounting the first version of the airbox
You do not have the required permissions to view the files attached to this post.
- grelland
- Posts: 990
- Joined: Fri May 13, 2005 2:47 am
Re: Update and improvements on my Oxy build
Are you sure the intake diameter was the main reason for the restriction? What about velocity stacks and general air bok volume?flat4olsen wrote: ↑Thu Feb 22, 2018 2:32 am My inlets were 63 mm. The drawing is a little different than the final result. I had to angle the snouts a bit, but the size remained,- still 63 mm. And that was to small!
I will not be too concerned if I loose 10 hp, as I can always remove the boxes for track use , but of course it is interesting to know where the constrictions are.
-
- Posts: 14
- Joined: Wed Sep 25, 2013 3:00 am
Re: Update and improvements on my Oxy build
No, I can´t tell, if it was the total volume or the inlet size, that caused the power drop. All I know is, that it was related to the air boxes. It may be that your design, which is i little different than mine, will perform better. If you are going on a dyno, try to do a pulls with and without the boxes. I am curious to see, if the larger volume in your boxes will do the difference.
- grelland
- Posts: 990
- Joined: Fri May 13, 2005 2:47 am
Re: Update and improvements on my Oxy build
Well, time will show.
I am planning a dyno session this spring, so I will see the difference.
meanwhile, I have printed a few more parts for the intake system, and here you get an idea of my plan: My son also made me a vacuum-thingy for the vacuum signal to the ecu. Nothing fancy, just a couple of AN-6 fittings and a barb fitting for the hose going to the MAP sensor. It provides a small voulme in order to somewhat filter the vacuum signal. NIce to have access to a lathe and mill for these kind of small projects. I will make a couple of brackets in order to mount it to the backside of the fan shroud.
I am planning a dyno session this spring, so I will see the difference.
meanwhile, I have printed a few more parts for the intake system, and here you get an idea of my plan: My son also made me a vacuum-thingy for the vacuum signal to the ecu. Nothing fancy, just a couple of AN-6 fittings and a barb fitting for the hose going to the MAP sensor. It provides a small voulme in order to somewhat filter the vacuum signal. NIce to have access to a lathe and mill for these kind of small projects. I will make a couple of brackets in order to mount it to the backside of the fan shroud.
You do not have the required permissions to view the files attached to this post.