sohc vtec with carburator will this work?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by black4door &raquo;</TD></TR><TR><TD CLASS="quote">sohc vtec with carburator will this work?</TD></TR></TABLE>
IS THERE SUCH A THING?

 

could he possibly mean individual throttle bodies?

 

yes and no

 

you can run a CARB. and NO im not talking about ITB.
look it up, or look into some EUROPEAN civics, some of them are carbed.

 

mate your gonna have a bit of strife if you're converting from efi. Why do you want to do it anyway?

 

You could bolt on carbs, but the hard part would be tuning. Unlike an ecu, you will not be able to just change fuel maps, and will only be able to tune for vtec, or for non-vtec.

 

well, when you go into VTEC, how are you gonna adjust the fueling?? you CAN do it, but... it'll never run as mint as with fuel injecton and you'll prolly fail smog pretty hardcore. I've seen a twin Weber setup on a 99-00 Si B16A2. It was on display though, wasn't in a car at the moment, though I was told it was running in the car at some point. Again, you COULD, but why? Fuel injecton rawks. I just rebuilt a carb on my Samurai and I wowed never to do it again!!!

 

wtf, do you understand what you are saying? the reason why they dont use carbs on cars anymore is because of effiencey power and blah blah, carbs shoot the fuel in mechanically very far up the intake area, this leads to more clumping of the fuel particles and therefore less actual combustion of the fuel. Fuel injection puts the fuel in farther down the stream much closer to the actual area of combustion. this means that the fuel gets much more atomized and spread out leading to better combustion. so yea, i ahve no idea why you would want to do that...

 

How many of you folks commenting on carb'd hondas have any experience with them? lol.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHCwarrior &raquo;</TD></TR><TR><TD CLASS="quote">You could bolt on carbs, but the hard part would be tuning. Unlike an ecu, you will not be able to just change fuel maps, and will only be able to tune for vtec, or for non-vtec.</TD></TR></TABLE>

This is why you tune the JETS. the JETS dictate what your "fuel map" is.

annd you guys wanna know about carbs with vtec? lol. Ask Supertwinz about his FCR carbs on his b18c R motor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JaeOne3345 &raquo;</TD></TR><TR><TD CLASS="quote">How many of you folks commenting on carb'd hondas have any experience with them? lol.</TD></TR></TABLE>

For real! BTW....fuel being sprayed further away from the chamber is better for atomization.

Jae, don't you have a carbed SOHC for sale?

 

for sure ..not for sale. haha

 

Oh ****...i was thinking you had an extra for sale...I thought you were running the 1.6 bottom end.

 

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by WAFFLES &raquo;</TD></TR><TR><TD CLASS="quote">

For real! BTW....fuel being sprayed further away from the chamber is better for atomization.

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i dont really think you have your facts straight. how is farther away better for atomization? it just gives it more room to combine and form larger pockets of fuel. which therefore means less complete combustion.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JaeOne3345 &raquo;</TD></TR><TR><TD CLASS="quote">How many of you folks commenting on carb'd hondas have any experience with them? lol.</TD></TR></TABLE>

Word.
Carb set ups were really popular with VTEC motors in my area back in 97-98. It is possible, and it can and will make power with an experienced carb tuner. In most of the set ups I saw, they weren't the greatest for street driving, in traffic etc, but they made good power for that era.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by veggiemaster &raquo;</TD></TR><TR><TD CLASS="quote">

i dont really think you have your facts straight. how is farther away better for atomization? it just gives it more room to combine and form larger pockets of fuel. which therefore means less complete combustion.</TD></TR></TABLE>

There's a fine line between too far and not far enough IMHO. Too far away and it will do like you say, but not far enough and it doesnt have time to completely atomize.

With that said, I used to have a constant velocity carb on an MG and rather take an *** kicking than put a carb on my car now.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by veggiemaster &raquo;</TD></TR><TR><TD CLASS="quote">i dont really think you have your facts straight. </TD></TR></TABLE>
Uh...

Ever read about the testing done by the SOHC genius, Bisi?
Carbs atomized the fuel better than an EFI setup.
He had to place the injector 3 feet away from the valve to obtain comparable atomization.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by veggiemaster &raquo;</TD></TR><TR><TD CLASS="quote">wtf, do you understand what you are saying? the reason why they dont use carbs on cars anymore is because of effiencey power and blah blah, carbs shoot the fuel in mechanically very far up the intake area, this leads to more clumping of the fuel particles and therefore less actual combustion of the fuel. Fuel injection puts the fuel in farther down the stream much closer to the actual area of combustion. this means that the fuel gets much more atomized and spread out leading to better combustion. so yea, i ahve no idea why you would want to do that...</TD></TR></TABLE>

Please tell that to bisi.. he seems to think otherwise.. and has the research to back his opinion.

 

I rember like 7 years ago we go we got a 1.5L with carbs and we put it in a 90 civic 4 door went like stink.

 

I have a set of carbs for my sohc, but I haven't set it up. It's not impossible to run carbs with vtec, it is very possible. But can you efficiently tune them for vtec and non-vtec?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Eee Pee &raquo;</TD></TR><TR><TD CLASS="quote">
Uh...

Ever read about the testing done by the SOHC genius, Bisi?
Carbs atomized the fuel better than an EFI setup.
He had to place the injector 3 feet away from the valve to obtain comparable atomization.
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no i have never talked to genius Bisi.
I apologize for not talking to everyone in the world before stating all of the information that i have ever learned.
3 feet away? that makes no sense at all. because in 3 feet it has time to stick to the sides of whatever its being injected into and clump and yadda yadda. the main point of fuel injection is to individually put the fuel into each respective cylinder, where carbs put the fuel in where the air enters the engine. and i really dont understand how a carb can atomize fuel better than a direct port injection system. injectors mist the fuel into the cylinders, for better pre-atomization, whereas a carbs jet squirts the fuel into the source.

well, really im just reiterating everything that i have learned in my experience, and i doubt infinatenexus or Eee Pee has the research to back what you say up, and are just restating what you have heard on these boards. i would like to hear from this, Bisi, or at least see some of his charts and research with fuel atomization. so there are some more of my pennies thrown out on the table. no someone with some REAL evidence please put some **** down on the table.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ricey McRicerton &raquo;</TD></TR><TR><TD CLASS="quote">

There's a fine line between too far and not far enough IMHO. Too far away and it will do like you say, but not far enough and it doesnt have time to completely atomize.

With that said, I used to have a constant velocity carb on an MG and rather take an *** kicking than put a carb on my car now. </TD></TR></TABLE>

true, thats absoutly right.

btw, in no way do i mean to step on anyones toes or be an *******, but please, shoot out some info rather than this <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JaeOne3345 &raquo;</TD></TR><TR><TD CLASS="quote">How many of you folks commenting on carb'd hondas have any experience with them? lol.</TD></TR></TABLE>
and just pointless requoting.

and i dont mind being proved wrong at all, as long as its by some firm evidence.

 

In no way was I trying to be a dick but time and time again I notice on h-t how people comment on things they don't actually work with. Its nothing personal to any single individual. Everyone seems to think "oh my god, carbs, dinosaurs, bad gas mpg, not precise" etc. There are so many good carb set ups on the market, i.e. Lectron, Weber, Dellorto, Keihin. Just like fuel injection, you tune them shitty, they run shitty.

For your comments on atomization, you should also read all the discussions on the fuel injected ITB's. Units like the Toda, Jenvey, and TWM throttles have the injectors further away from the cylinder head than your average oem injection set up because many test show better atomization even with fuel injection further away from the head.

Ever seen some Formula 1 engines? Some of them have the injector spraying into the velocity stack. sample principle. More time to atomize with the distance traveled. People can make power either way, do what works for you.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by veggiemaster &raquo;</TD></TR><TR><TD CLASS="quote">

the main point of fuel injection is to individually put the fuel into each respective cylinder, where carbs put the fuel in where the air enters the engine. and i really dont understand how a carb can atomize fuel better than a direct port injection system. injectors mist the fuel into the cylinders, for better pre-atomization, whereas a carbs jet squirts the fuel into the source.
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With this comment, you speak as if no carbs individually put the fuel into each respective cylinder. You say injectors mist the fuel into the cylinders, where as carbs jet squirts the fuel into the source? What carb set ups are you talking about?

My carb set up:

As you can see, dual Mikuni sidedrafts. With this set up, each cylinder has its own barrel, and each cylinder has its own set of jets, therefore putting fuel to the motor individually into each cylinder. it's not as if it comes from some shared plenum and all the fuel is dispersed in a "sharing" way. Because each cylinder has its own idle jet, main fuel jet, air jet, and venturi, its like each cylinder having its own carb.


Lectron racing carbs. (what i'd really like to have). Same principle, basically one carb per cylinder. These are extremely precise and high quality if you look up information about them.

Same carbs installed on someone's race car here on h-t.

 

JaeOne3345
gotta say i think he just OWNED this thread