Page 10 of 12

Re: Oxyboxer build thread

Posted: Tue Sep 24, 2013 11:04 am
by grelland
Thanks guys.

I know I said once that I should take some pictures of the making of the inserts, but I forgot...

However this guy makes them for sale:


Roy

Re: Oxyboxer build thread

Posted: Fri Sep 27, 2013 1:24 pm
by grelland
One last test fit of the tinware before paint:
final mockup.jpg
Getting closer every week :)

Re: Oxyboxer build thread

Posted: Sat Oct 05, 2013 1:34 pm
by grelland
Boring update, but after a couple of hours with the welder and some bondo, the tin is almost ready for paint:
tin.jpg
Oh well, one more step closer to the target

Re: Oxyboxer build thread

Posted: Sun Oct 13, 2013 1:28 pm
by grelland
Today I have had a look at the filter and velocity staks, and have come up with this solution:

First I started with making a hole in the top of a conventional dellorto/weber filter assembly and mount it to the TBs, along with a velocity stack. The stacks have too small ID, so I will put them in the lathe and take them down so that the ID correspond withe the TB:
trakt.jpg
Then a peek down the filter:
inside filter.jpg
And finally the top goes on:
filter.jpg
These might be a bit tall for the Ghia engine compartment but I can always get hold of a pair of shorter filter inserts

Finally, shot of my son's project:
tin.jpg

Re: Oxyboxer build thread

Posted: Tue Oct 22, 2013 3:16 pm
by grelland
Not much progress, but I have finally landed on using the Denso pencil-style COPs along with a microsquirt ecu and an external box with the coil drivers.

Just mocked up the intakes with the COPs again to ensure it all fits:
20131022_001432.jpg
20131022_001436.jpg

Re: Oxyboxer build thread

Posted: Wed Oct 23, 2013 4:15 am
by andy198712
Are those off a motorbike per chance? Look like the ones on my zx9r

Coming along!

Re: Oxyboxer build thread

Posted: Wed Oct 23, 2013 6:46 am
by grelland
you are right. From the top of my head do I not remember which one though :)

Re: Oxyboxer build thread

Posted: Wed Oct 23, 2013 8:05 am
by Steve Arndt
CBR Honda coils. I have a set I got off ebay. They have a pretty wimpy spark but are nice and small

IGN1 flame throwers on the left, CBR coil on plugs on right.

Re: Oxyboxer build thread

Posted: Wed Oct 23, 2013 8:27 am
by grelland
I know they have a lesser spark than the edis coils for excample but will they give enough spark for a quite mild 2110 with about 9:1 compressionrratio? I think yes ;)

Re: Oxyboxer build thread

Posted: Thu Oct 24, 2013 12:24 am
by grelland
A couple of crappy pics, but it starts looking like a proper engine now:
20131023_221523.jpg
On the back side, I have cut and mounted the fuel line, and also the vacuum system is taking shape; I will be using an old breather box as a reservoir, and since my ECU uses an external MAP sensor, I will simply put the sensor inside the box. The box is currently not sealed, but tht will be fixed :)

The ECU will be mounted in the red circle, so all wires will be nice and short
20131023_221550.jpg

Re: Oxyboxer build thread

Posted: Thu Oct 24, 2013 7:58 am
by Steve Arndt
Make sure the external sensor is mounted so the hose nipple points down. They can collect condensation inside. I would mount the sensor next to or near your ECU then run a simple vac line to your vacuum block.

Re: Oxyboxer build thread

Posted: Thu Oct 24, 2013 1:42 pm
by grelland
sure, will do.

Here are a few shots of somewhat better quality:
20131024_220931.jpg
20131024_220946.jpg
20131024_221014.jpg

Re: Oxyboxer build thread

Posted: Sat Oct 26, 2013 3:02 am
by andy198712
grelland wrote:I know they have a lesser spark than the edis coils for excample but will they give enough spark for a quite mild 2110 with about 9:1 compressionrratio? I think yes ;)

well my bike has 10+:1 compression and spins over 12krpm with that type of coil so i wouldnt be worried :P

Re: Oxyboxer build thread

Posted: Mon Apr 28, 2014 9:55 am
by grelland
Progress is slow, but the engine is more or less assembled, and I have prepared its new home by removing the "old" 1835cc:
tomt.jpg
I have lifted the engine down from my workbench, and trial mounted the new exhaust:
eksos.jpg
Hopefully it will be ready for initial start-up in not so distant future :)

Re: Oxyboxer build thread

Posted: Tue Apr 29, 2014 8:05 am
by andy198712
looks good! is that a CSP exhaust?

are you running a deep sump or not?