Fuel Injection

**Enigma** · 18-11-2004 09:25 AM

I was wondering if anyone would know how i would neeed to go about changing my carby engine into fuel injection or is it just not worth it. Would i be better of just getting another engine or is the change possible.

Thanks Guys

**DualCarb** · 18-11-2004 05:00 PM

which carby engine u got? Single or Dual Carbd?

I found several very useful mods on the dual carb setup for decent power gains. As for it being worth it, consider that all the honda carbed engines put out exactly the same or even better performance than the Fuel Injected versions of the same engines. So ultimately, you'll have to ask yourself what your final goal is for your car... go FI if you wish to make the turboing easy, if you have that in mind. But for NA power, the carbs are good.

**sivic** · 18-11-2004 05:11 PM

EFI is generally better than carb. it allows much greater tuning flexability. dont know of any carb honda engines being better than efi versions? perhaps if you looking at eg gli engine versus VEi. not sure if you can practically convert a carb engine to EFI. prob need to do complete engine swap. to convert your car to EFI you would need: EFI motor(another d series would be easiest), gear box if old not compatible, new ecu, new fuel system - pumps, lines etc and possibly new fuel tank due to internal pumps. with the new engine you would have to make sure you got the manifolds, throttle body and any other sensors and looms for it.

**michael_antoi** · 18-11-2004 05:14 PM

Originally Posted by DualCarb

which carby engine u got? Single or Dual Carbd?

I found several very useful mods on the dual carb setup for decent power gains. As for it being worth it, consider that all the honda carbed engines put out exactly the same or even better performance than the Fuel Injected versions of the same engines. So ultimately, you'll have to ask yourself what your final goal is for your car... go FI if you wish to make the turboing easy, if you have that in mind. But for NA power, the carbs are good.

can anyone me if i have single or dual carb....(94 breeze)

and what mods can be done to it to gain performance....

**Enigma** · 18-11-2004 05:25 PM

Well i have a Honda Civic Breeze 91 EG3, single carby. Well even if as u say it doesnt make a difference wat mods do u recon that i could do to my engine. to add to the stock 55hp of the 1.3L.

**DualCarb** · 18-11-2004 05:38 PM

Originally Posted by sivic

EFI is generally better than carb. it allows much greater tuning flexability. dont know of any carb honda engines being better than efi versions? perhaps if you looking at eg gli engine versus VEi. not sure if you can practically convert a carb engine to EFI. prob need to do complete engine swap. to convert your car to EFI you would need: EFI motor(another d series would be easiest), gear box if old not compatible, new ecu, new fuel system - pumps, lines etc and possibly new fuel tank due to internal pumps. with the new engine you would have to make sure you got the manifolds, throttle body and any other sensors and looms for it.

D14A1 dual carb = 90HP (1400)
D15B2 FI = 90HP (1500)
D15B3 single carb = 92HP (1500)
D15B4 dual carb = 105HP (1500)
D16A6 FI = 108HP (1600)

as you can see, the HP ratings are similar, or slightly better, with the carbd motors, some with even less displacement. The FI may offer more precise tunability, but not everyoe has the luxury of going to see a specialist everytime they need to. Tuning a carb is as easy as turning a screwdriver...

**Enigma** · 18-11-2004 05:41 PM

Then wat are ur recommendations on mods to add more power, from the line to my car. i just feel as it lacks alot of power. Especially since im getting my EG3 engine swapped since i blow the head on it. i want to get as many mods together by the mechanic together as i can.

**DualCarb** · 18-11-2004 05:43 PM

Originally Posted by michael_antoi

can anyone me if i have single or dual carb....(94 breeze)

and what mods can be done to it to gain performance....

Pop you hood and count them.... If you have a flat airbox lying horizontally directly under your hood, you have a single. If you have an Airbox mounted vertically next to you firewall, you have a dual carb. You can actually see them both clearly.

mods you can find here:

http://www.d-series.org/forums/showthread.php?t=1416

**Enigma** · 18-11-2004 05:44 PM

nah i know, im sure i have a single carby i know that.

**DualCarb** · 18-11-2004 05:48 PM

Originally Posted by Enigma

Then wat are ur recommendations on mods to add more power, from the line to my car. i just feel as it lacks alot of power. Especially since im getting my EG3 engine swapped since i blow the head on it. i want to get as many mods together by the mechanic together as i can.

On a single carb motor, you can flip the lid of the airbox, to let in air from 360 degrees, as opposed to one direction only as with the air inlet pipe. This is also more effective if you drop in a performance filter like K&N designed to replace your stock filter. You can also ask a carb expert to open you second downdraught barrel permanently, more power throughout the range. The second throat only opens at a certain RPM, for high end power. Opening it permanently gives you low end gains too. You can also have it rejetted for slightly more fuel...