ive been doing alot of research on crabbed honda b series obd 0 builds, not a whole lot comes up with the exp of afew youtube videos of europe guys doing them.... i have built motors with itb setups and i love itbs but i want to built this carb setup.... ever sense i read a article on honda tuning way back when on a crx d series on weber carbs ive wanted to build this....

i need help.... locate parts i.e, setup i.e manifold, and ignition/computer setup....

the motor i built, a b18a build as followed...... srp 12:5.1 pistons sb, eagle rods, comettic gasket, brian crower s2 cams, skunk2 dual valve springs, ferria valves std, guides and seats. arp hardware, itr oil pump, acl bearings, ati damper, gasket matched ext and intake ports, 5 angle job, decked head/block .008m and afew other odds and ends....

im just wondering if it can easily be done given the experience i have on itb setups or keep this build on itbs....?

thankyou for at least checking in....

 

wow, anyone? i cant be the only old head on here...

 

I run dual dellorto carbs on my 81 VW Scirocco S, with a 1.8 16v engine. it is my track car, but i occasionally street drive it.

throttle response is very good, but not quite on par with ITB's, but it is better than the stick fuel injection that the engine came with. fun and responsive to drive, especially with a lw flywheel. sounds killer, but i have a 1 5/8 primaries header and a 3 inch dump exhaust... and it beats most street vehicles, as the trans is geared for max acceleration...

first thing that stands out to me is your compression ratio - it is WAY too high for most carb'ed engines to run safely. either drop it to below 11:1 ( i run 10.5:1 ), or you will have to run some sort of knock detection and timing computer to pull spark when it begins to knock. or, you will have to pull a lot of ignition timing under full load, as in a vacuum retard distributor.

you also will have to run a fairly large carb (2 of course) to feed the high flow potential of large cams and a ported head. dellorto or weber 45's MAY work with a large choke such as a 42 or 43mm choke, but they may be too small. there are 48's and 50's out there, but they are expensive and hard to find as they were mostly race type carbs.

there is a seller on ebay, alfa157 or something of the sort, that sells everything you may need for a dellorto, including the carbs. weber has as much, if not more support, as they are still readily available.

i am a weber dealer, and can check when they open if there is a honda B series application as far as a manifold, and what they advise on carb size. i can get you prices if you wish...

let me know if i can help. surely someone that knows more will chime in here.

i also glanced through this month's honda tuning mag, and saw a crx with carbs. not sure if it was a B or D though...

 

just checked weber's website - only modern honda app is the 1.6 D series non-VTEC... i can still call if you wish.

 

please do, i got afew 1/2 built d's sitting around...

thanks buddy

 

I have a dual carb ZC setup that I am working on as a small side project. During my research into carbureted Honda's I found an article about Bisi Ezerioha's carbureted F22A Insight. He fabricated a stock F22 manifold with carb mounting plates to run a set of Redline Weber 55mm dco/sp carburetors with 48mm venturis. You may want to pick his brain.

http://www.tunerzine.com/view-articl...-motor-insight

 

the crx in honda tuning is a carbed B series.



http://www.hondatuningmagazine.com/f...ef7/index.html

will call weber today... you may want to contat ssworks...

 

thanks for that tip, thinking i gotta have a little chat....

dope setup but i believe the carb setup was in a hondatuning back in 2003, it was a black crx sohc and rhd. the car was owned by the owner of aries pistons, i do remember that much about the setup, honda tuning doesn't go back that far i guess...

side note, dident aries pistons go out of business?

 

that setup is beautiful.

 

I know a few people down here in SoCal tried the fast by gast lectron setups. They are "lectron carbs" not STD carbs.

I had some, but I ended up trading them once I figured out how much of a pain it was going to be to run them. On top of that, the few guys that ran em didn't make that much power...

 

you are going to make more power with fuel injection, as well as have better throttle response - most of the time - with fuel injection, instead of a carb.

however, i went carbs on the scirocco because i wanted the "wow" factor, plus the stock fuel injection sucked, and i make more power with the carbs vs the stock fi. however, has i gone itb's, they would make more power than the carbs...

 

Tuning is definitely more time consuming,difficult when using carbs since you have to manually screw in jets,emulsion tubes,etc. as compared to ITB's where you do tuning on the fly at the laptop.Technology is here let's use it.

 

Most people who have never had any experience with carbs, think that they are so very complicated. That couldnt be further from the truth. They are so simple and very cost effective.

With carbs all you need to do is adjust AFR's and you are done. That could either be done on the dyno, or "On the Fly" if you have a wideband. Totally not difficult to change jets when it only takes a wing nut on the top of the carb to get to them. Tuning carbs can take 1/2 the time as an injected car.


Also with injection, you need to have a decent ECU/Engine Management setup. Which is not going to be cheap at all if you plan on tuning "On the Fly".

Money - HP , its carbs everytime.

This is a pic of a 1.5L with dual carbs, stock head, camshaft, 13:1 compression pistons. It made 158whp/118ft lbs just last week with much more in it with jetting changes. Not bad numbers from a measly little 1.5

 

I love carburetors. They can be easy to tune or very complex, it all depends on how much "tuneability" you have in them.

 

I totally agree with you regarding carb tuneability provided you have a set of the different jets,emulsion tubes from your preferred carb brand.I've been thru solex, weber and Delorto carbs too in high school when I started with my Toyota 2L 2TG DOHC which happened to be the "B series" at that time.since we're in the computer age, we just have to move on unless you want to run a unique setup from the past.

 

this is the weber kit i keep forgetting to get prices on...

 

very nice setup!!!!!!!!!!!

when you get a chance, im not in a hurry....thanks

 

budice, what kind of ignition are you running or are you the stock ignition with a ecu map, tps, iacv delete ext....tune?

 

sorry, and fuel pump setup as well....?

 

No factory ecu. MSD Digital6 but any MSD will work. We are using the Digital6 because we use the 2step feature. Stock distributor gutted and only using the Magnetic pickup. Holley fuel pump @5psi. I normally tune the AFR's right around 13.3

 

wow, thankyou sooo much for that tip, so i take it that you just wire up the box straight up to the dizy, run a external coil and call it a day....?

also, where did you get you weber setup?

agian, budice, thankyou for your help in this build of mine

 

Gutted Distributor and only using the 2 wires coming off of the magnetic pickup (the 4 bladed rotor) .


External coil, with MSD cap. Carbs came from Bisimoto. Intake manifold is TWM.

 

ok... cool, did it cost you an arm and a leg for the setup, also is there a linkage kit for this setup or are ya fabing up one?

 

also looked up on twm's website and they donot make the weber carb manifolds anymore, they sold the prints to a pierce manifolds in california, but this company does not make a manifold newer then 87, wtf!!!!!!!!

when i thought i was making progress on this build, arrrrrrhhhh

 

Honestly , I dont remember what it cost. But it was much less than a good set of itb's and a ecu/management system for sure.

Linkage kit is also available from Weber or whoever you buy the carbs from.

If you contact bisimoto, I am sure he can source a manifold for you. Or if you know someone that can weld aluminum, you can make your own.