installer67

iTrader: (18)

Ok, I'm a bit of an insomniac, so I'm usually up till the wee hours musing on the car, possible mods, etc. So I was thinking last night about fabricating a "snorkle" for my dcoe. Since I'm still a relative virgin to my weber, I'm short on practical knowledge of sidedrafts. Would a sidedraft benefit from this just like a "normal" carb? Has anyone else ever tried this? Anything I need to consider in design? Known issues? Known benefits? Tips? Suggestions? Is this just a waste of time?

Jibaro 12A

iTrader: (8)

Like on Jeeps? Since your an insomniac go for it if its worth it.

installer67

iTrader: (18)

My wife was talkin about jeeps and I typed in snorkle. I mean airbox.

TERVO

Take a look to what I did to my DCOE 45 Tyeah Custom maid if you like ill help you make one similer if you like Hope it helps..

installer67

iTrader: (18)

Tervo, sweet lookin setup! I'm staying N/A though. I was just debating the pros/cons of fabbing an airbox, or possibly a cold air setup. I relocated my battery, so I could possibly route fresh air from the front etc. Does the 45 get more pep with the addition of this kind of air intake like "standard" carbs do?

j9fd3s

iTrader: (3)

due to the location of the carb it might help to get cold air to it, right on top of the engine = plenty of radiant heat...

installer67

iTrader: (18)

I figured that, but I've realised that these things don't always react the same as "standard" carbs, so before I spent too much mental ************ on the idea I wanted to get some confirmation. I'll start workin on a design and then a mock up. Should be a bonus on the street port I'll be putting in in a couple weeks.

vipernicus42

iTrader: (4)

This reminds me of an idea I've been playing with for years.

I want to take a Honda CRX or a Del Sol and drop in a rotary engine with a Weber side-draft carb. Since the engine would be mounted transverse, the airhorns of the carb would point towards the front of the car, so then I'd get something like a TII hood scoop, mold it into the hood, and make a "Ram Air" setup with it

I always pictured it as "How to get your girlfriend driving a rotary? Drop one in a Del Sol!"

Jon

installer67

iTrader: (18)

I was talking to the wife last night about doing that very thing, but not for awhile, as I haven't had enough experience with the rotary engine to be comfy making a leap like that yet. I was thinking of doing the hood like the subaru's, for the large opening of the scoop.
BTW- I found a PDF write up you did on stripping a Nikki and it was a life saver! I'm building an 85 for the wife and trying to stay mostly stock but without all the emissions! The Nikki is a complete stranger to me and I was a bit intimidated by all the crap. Your write up was easy to follow and exactly what I wanted to do. THANKS!

Jeezus

iTrader: (4)

You should have the airhorns towards the cabin, then put some sort of 3 footer air horns on it, and drill them into the cabin. That intake noise is LOVELY

Super82

iTrader: (1)

To answer the main question, yes all carbs (or all engines rather) would be improved by getting colder air.

installer67

iTrader: (18)

Any suggestions on "chamber" size? I had/have a air cleaner assembly for it, but had to remove it because it was only 1" or less from the top of the stacks and was preventing adequate airflow. Should I use a "box" over both, or fab individual pipes that collect to a single larger inlet? Is there a benefit to doing one instead of the other?

TERVO

If I was to want air to my webers from the top I would cut a triangle shape not right on top but half way of weber filter back tords fire wall mold a triangle peace of fiber glass for air to come in bouncing of fire wall just in case you get cought up in the rain-also would would make a mock up of that plastic pluming tubs couse it offers a lot of shapes and aim tords the spakplug side all the way down get air from the draft underneath would be a nice tuch to make it as wide as the webber filter all the way down verses the tube look all the way down I'm brain storming now lol..but yeah its a good idea to make one for fresh air webbers are great in taking in air at top end it would benifit just right if it was done right good luck man..

t_g_farrell

iTrader: (1)

There is definitely a benefit to doing this. I remember reading somewhere
about doing this on large 2 barrels.

I think it has to do with it extending the intake runner length so it can affect
your peak power band. Longer moves it down, shorter moves it up. So some
longer tubes might move the power band down. You'd have to experiment to
see what length works best and then maybe box it up there and have a larger
intake pipe with the filter on the end. If you read thru the NA thread on here and
look for posts by rotarygod you can get some good ideas of how this might work.

This is just my understanding of it so don't take it as fact. I've thought of doing
this on my Dell setup, just never got around to it.

installer67

iTrader: (18)

I was considering doing a large "H" at the carb, with one part over each stack, then running the inlets around both sides of the oil fill tube and then down/across to the lower front of the drivers shock tower and collecting at the entry by the rad/battery tray position to a larger diameter to the "grille" area below the bumper. It would sorta look like a header for the carb. LOL What ever the final design is, I'll have to do a few "mock ups" and then make it in ABS for testing, then if it works have someone fab it for me in aluminum or SS.

vipernicus42

iTrader: (4)

Lol I'm glad you found it useful, but where prey tell did you find it at all?
I remember making it, I don't even have a copy of the original. I sent it to two or three people and never got around to making the edits they suggested so I thought it was lost to the sands of time!

Jon

installer67

iTrader: (18)

Did a search for modifying a nikki and found this link to your pdf.
http://www.leethaxorz.com/Reference/...pingDraft1.pdf