Oxyboxer build thread

[grelland]

Thanks

Yes that is a CSP Python 42mm exhaust.
No deep sump, as the wbx case already has a lot larger sump than the T1-style cases

[13window]

looking good grelland. are you going to turbo this one??

[grelland]

not for this season, no

[andy198712]

not for this season, no

tad open ended!!

[buildabiggerboxer]

One thing on mounting the ECU on there Grelland is a, noise, and b, heat, away from both sources will save you mucho grief, I would seriously consider mounting it inside on the firewall with suitable screening from noise, look at all the trouble o/e makers go to on just street cars with all the cables in moulded trunking, most ECU's are nowadays inside and away from stray signals and alternator current etc. just so you know, but it can be a big problem and hard to trace. REGARDS, BBB.

[grelland]

I know, buildabiggerboxer, but I decided to try it and see how it works out. I figured that short wires will have a positive impact on the noise, that might outweight some of the negative ones.

I got a couple of hours of work done on Friday, and I staed by trial mounting the alu-plate with the electronics:

electronics.jpg

Then I started disassembling the stock drum brakes, in order to prepare for mounting the rear discs, and here is a trial mount of the adapter plates:

brakes.jpg

Then I need to place the oil cooler beside the gear-box, and it fits nicely:

cooler.jpg

But since I have a cooler without AN-couplings, I needed a few extra "thingies" to convert to the AN-10 hose ends, so then it becomes a bit thight:

trangt.jpg

I have later got hold of som 90° bends, so now it looks a lot better.

I also fixed a couple of small issues on the engine, as torqeing the flywheel, and mount the fuel pump block-off and Mario's excellent AN-plug in the distributor hole. I also got the old-school Gene Berg breather box mounted.

Getting closer

[grelland]

Finally the engine is in the car:

in ghia w exhaust.jpg

Quite a few more bits and pieces to get in place before I can fire it up, but it is getting there.

[grelland]

getting closer

with filters.jpg

[grelland]

babysteps, but it runs, and I have taken it for a spin around the block. But the injectors are way too small, so I have a new set in the mail, then I will take it to the dyno, and then we will see how successful this has been

1233986_10204704331478353_945829940766571809_n.jpg

[andy198712]

Cool that's ace! What do your current injectors flow? Vs new? (I'm worried mine will be the similar)

Congrats!

[grelland]

I had 19# injectors in, now I changed to 32#, and that made all the difference in the world. Still some tuning to do, but I took it to about 5000 rpm, and it is a bit on the rich side, and then the DC is about 48%.

A better quality pic from after yesterday's test'n'tune session:

engine 1.png

[andy198712]

I had 19# injectors in, now I changed to 32#, and that made all the difference in the world. Still some tuning to do, but I took it to about 5000 rpm, and it is a bit on the rich side, and then the DC is about 48%.

A better quality pic from after yesterday's test'n'tune session:

engine 1.jpg

im so confused by injector flows, think gsxr lowers are 225cc per min (i guess) @43psi

duty cycle sounds nice and low! lots of head room nice clean lines on your engine, looks "right"

[slak]

Any updates on your engine how does it run ?

[Chip Birks]

Wow, I just went through this whole thread, very impressive work! Nice to see so much of it done at home with normal tools. Makes it seem a bit less daunting. I've always wanted to do an Oxy build, I'm less intimidated now. I know you ran into some issues down the road with it, but I guess that's documented in a different thread.

[andy198712]

Wow, I just went through this whole thread, very impressive work! Nice to see so much of it done at home with normal tools. Makes it seem a bit less daunting. I've always wanted to do an Oxy build, I'm less intimidated now. I know you ran into some issues down the road with it, but I guess that's documented in a different thread.

my thoughts exactly so i brought a WBX! This was one of the main threads that made me want to try it