Dual Sidedraft SU Carbs

[lostforawhile]

well I already solved this issue,let me find the urls. Su carbs don't have a traditional choke plate,they move the needle farthur away from the jet to richen the mixture. I already built the mechanical piece to connect both choke cables together and have already built the air cleaners.

ok here are the URLs
https://www.3geez.com/forum/showthread.php?t=56803
https://www.3geez.com/forum/showthread.php?t=56803

[lostforawhile]

ok here are the correct ones,my bad,the first is the carb project,the second is the breather,and the third one is the air cleaners
ok here are the URLs
https://www.3geez.com/forum/showthread.php?t=56803
https://www.3geez.com/forum/showthread.php?t=58196
https://www.3geez.com/forum/showthread.php?t=57972

[lostforawhile]

just for an update,the air cleaners are finished,the engine breather that attaches to the manifold is finished, I'm waithing for my tax refund money right now,not only to pay some people on here,but to pay the guy to weld the manifold adaptor plate to the piece of factory manifold. I have a bunch of other money coming from the state,so when it gets here,I'll get these carbs sent off for rebuild. then it's just a lot of fitting and removing vacccume lines.
I really hope to get this running in time for a summer meet here in georgia. I know a lot of people want to see these carbs up and running. no one more then me. the factory carb is about to drive me crazy.
here is the link to the air cleaner project. https://www.3geez.com/forum/showthread.php?t=57972
and the breather project
https://www.3geez.com/forum/showthread.php?t=58196

[A20A1]

Can't wait to see the carb and manifold installed

[lostforawhile]

Can't wait to see the carb and manifold installed

yea I'm going to try and get those manifold pieces tacked together tomorrow,I have to clamp the entire adaptor plate to a big piece of steel after it's tacked,thats so it doesn't warp while it's being tigged,then after all the welding is done I have to get the dremel and a burr and match the two end ports up. the end ports are slightly wider on the datsun manifold just on the outer two,so I have to fill the gaps with aluminum from the torch,then match the ports from the other side. the center two ports are a perfect match.

[lostforawhile]

ok here is what they look like right now. the manifold pieces are tacked together at the moment.

[speedpenguin]

Hell yes!

[lostforawhile]

ok an update,the manifold piece with the adaptor plate is at my dads shop in Atlanta, my step brother is going to take it to work with him,they have big ass tig machines there,he's going to get the manifold tigged up for me then send it down here. then i can start working on it again.

finally got the manifold back today,still lots of work to do,but at least a major step is done. now i can get it ported and get stuff going back together. got some pics and a short video. i don't know much about this video crap on the internet,but let me know if it looks jumpy to you. it's an AVI but i've got plenty of memory with the SD card. maby it's just my computer. the video looks smooth and non jumpy on the camera itself,yet looks jumpy on the video. i downloaded directy to youtube,so i don't know. it takes hours and hours to download 40mb on this piece of crap. lol.
here is the manifold as it came out of the box from ups

these welds are beautiful,a huge thanks to Bill Wittenbrook,my stepbrother,for having these welded up for me at the company he works for

this is the original maifold wall from the factory manifold,you can see how it doesn't line up,it needs to be ground away. the weld now forms the manifold wall. the outer two are the worst,the inner two line up almost perfectly
finished manifold on one side,this was done with a sioux die grinder,and a high speed cutter,then finished with a flap wheel.


i know a pic is missing i'm working on it right now,i'll have to post it later the camera batteries are dead.

i will make a video of the manifold itself later,when the batteries are charged,the end ports ended up realy nice looking,i will post some more pics up later too.

thats half the manifold,the other part is what the carbs are attached to. is the video jumpy for you? or is it my computer. and if it is,what causes that? the video on the camera doesn't do that.

ok the missing pictures
here is how it looked after welding before matching the ports.

and after

[forrest89sei]

Very Sexy Intake
Can't wait to sell the dual carbs on it

thats half the manifold,the other part is what the carbs are attached to. is the video jumpy for you? or is it my computer. and if it is,what causes that? the video on the camera doesn't do that.

I can't View the video until Tomorrow When I'm on free high speed.
My Dial Up would die........

[ahmad89]

very nice tim wish i had a shop like yours, my car would run better if i did.

[mushroom_toy]

Its not jumpy for me. Video looks good.

[knarg]

hahah the sound on the video is pretty funny x_x

[2oodoor]

get to porting !!!


this is an exciting project and with all the ideas you have on it I cant wait for the final product

[Hazwan]

Nice!

And yeah, video works great for me.

[carotman]

Nice manifold Tim!

[forrest89sei]

Looks Great, Video Works Great Also

[lostforawhile]

i have another video but i'm trying to figure out a way to compress this video so i can upload it.

[LX-incredible]

Cool, that looks like the grinder I have.

[lostforawhile]

lets see if this works from google video,find some pop corn.
http://video.google.com/videoplay?do...12812800&hl=en

[Pico]

Great work lost, cant wait to see the finished results.

[LX-incredible]

Wow, I had no idea of all the work you had into this. Everything looks very professional, great work!

700

[MessyHonda]

yeah the video is not jumpy at all but it sounds like the dentist office with that grinder.

[A18A]

haha funny youtube username, very nice work btw im a fan of your progress your making

[guaynabo89]

how much hp can you get out of those carbs compared to some 40 sidedrafts

[lostforawhile]

it's hard to judge,they are 38mm bores,but they don't have all the crap sticking into the bores like a conventional carb does. they also don't have a conventional choke plate to block airflow,they enrich the mixture with the jet for choke.