ECU From Carby EG

[patto14]

The EG carby`ed 1.5L single carb`ed Engines Runs Some Sort Of a computer
was just wondering is anyone knows if they can be tuned or chipped at all.
i no its aint worth it but just interested

[quangsuke]

from what i've heard you can't tune carby ecu's as it doesn't control the fuel that is sent to the carburetor. its more manual work to tune up a carby, where u need to adjust the jets and fuel which is mixed etc.

[patto14]

i was told its acualy single point injection witch means the computer dose have control of fuel and fuel air mixture

[quangsuke]

i was told its acualy single point injection witch means the computer dose have control of fuel and fuel air mixture

didn't know that.
but even if u do tune the ecu you need to mix the fuel with the air because carby's dont have a fuel return line, so the mix has to be right.

[patto14]

i think the carbys in Eg do have some sort of return i was told that u dnt need to run a ruturn when swaping to injection so must be some sort of return there

[quangsuke]

i think the carbys in Eg do have some sort of return i was told that u dnt need to run a ruturn when swaping to injection so must be some sort of return there

they dont have a return. they have a feed and a vapour line.
u dont need to run a return when going to efi becuase people use the vapour line as there return.

[ECU-MAN]

the EG and ED ECU for the carby computer does control the mixture for the carbys. there is no Center point Injection. Just carbys. the ECU will adjust the vacuum to the top of a varable piston in the carb that adjusts the fuel mixture.

its not possible to make chnages to the EG ECU as no one has done any development to it. ( Why Would you ? )

[patto14]

was just wondering if it was possible

[patto14]

no 1 has reali experamented with the little carby motors to see what they can do coz there not as shit as there made out 2 be

[ECU-MAN]

no they are not as crap as they are made out to be, but why would you bother to revers engineer a carby ECU?

[VT3C]

does that mean u cant manually tune those carbys ?? on an EG GL for example ?

when i got an old GL for my bro-in-law i drove it and was quite surprised.. the 16v SOHC's get up n go pretty well !! prob has more torque than my B16 haha !!

[patto14]

yeah can u manually tune them carbys? i was told via a mechanic they u cant but hes dosent deal with Honda at all really

[~Sp33~]

no 1 has reali experamented with the little carby motors to see what they can do coz there not as shit as there made out 2 be

Yes people have experimented with them, and who said they were crap?

Why would you want to 'chip' the ECU, you're thinking about this the wrong way. Throw the ECU in the bin and get bigger carbs.

[tiksie]

yeah can u manually tune them carbys? i was told via a mechanic they u cant but hes dosent deal with Honda at all really

Yes you can.

Here:
http://www.ozhonda.com/forum/showthread.php?13069-Dual-Carb-Modifications&highlight=modding+carby

Here:

D-series Carbs

Links:
Dog's Carb Projects:
http://www.d-series.org/forums/showp...&postcount=628



http://www.honda.co.uk/owner/ConcertoManual/11-1.html

Ignition and Timing for Dual Carbs New!!!
http://www.honda.co.uk/owner/Concert...k301/16-47.pdf
"bricheun's" home page
http://home.netvigator.com/~bricheun/
Carburettor Syncing
http://home.netvigator.com/~bricheun/carbsync.html
Links to discussions: carbed d-series motors?http://d-series.org/viewtopic.php?t=47
Performance Cams for D15B4?
http://www.automotiveforums.com/vbulletin/t138729.html
The ZC Engine
http://asia.vtec.net/topics/zc.html
DA-series Honda Integra Specifications (1989-1995)
http://asia.vtec.net/specs/daintegra/
DOHC ZC website
http://dohc_zc.tripod.com/main.html
CRX Resource Featured CRX
http://resource.crx.org/feature/2002..._featured.html
Downdraft Tuning info:
http://www.dimequarterly.tierranet.c...ing_guide.html
Manuals dealing with Dual CV Carbed Honda's:
http://www.honda.co.uk/owner/ConcertoManual/index.html
http://www.honda.co.uk/owner/PreludeManual/index.html
http://d-series.org/viewtopic.php?t=391
Info from posts: From "Current Dseries projects" thread:
http://d-series.org/viewtopic.php?t=253
From "Rejetting dual carb Keihin" thread:
http://d-series.org/viewtopic.php?t=1380
Thanks to Dual Carb RedlineWeber Tech page
http://www.redlineweber.com/html/Tec...f_contents.htm
Thanks to cryz2 for the following links:
http://www.3geez.com/forumdisplay.php?f=23
http://www.3geez.com/showthread.php?t=12362


http://www.3geez.com/showthread.php?t=11067

[patto14]

is it just me or do 90 percent of them links not work lol

[~Sp33~]

Was probably compiled a few years ago, and just copy and pasted here.

[patto14]

well theres lots of info on the duel carbys but sweet F A on the single carby on my 59 breeze would it be the same carby or what?

[~Sp33~]

Noone cares about single carbs. :P

[tiksie]

Most rules should also apply to the single carb.

It's easy working on carbs (IMHO) if your not keen, then don't bother.

[patto14]

the single carb 1.5 seems to go alot better then the 1.3 twin carb in the Eg`s

would the cutiing the spring shorted trick mentioned above and remving the air box and rung the bike filter make a noticeable about of power of responsiveness ?

[ECU-MAN]

lol

the 1.3 was single carb and the 1.5 is dual carb

[tseesinngwailo]

Simple, throw away the carbs and ecu

get a single or twin weber/dellorto carby and WHAMMO! awesome sound and more get up and go

Like people have said, mucking around with the ECU would be a massive waste of time for a tiny gain, don't you think the millions of dollars
Honda would have spent in development was for something with tuning potential??

Cheers

[patto14]

lol

the 1.3 was single carb and the 1.5 is dual carb

UN TRUU..... EG Breeze..... 91-93 = 1.3Single Carb
93-95 = 1.5Single Carb have the proof in my shed lol

And Was Told Removing Computer And Emissions They Run Like Shit Coz it also controls cylinder temps and other various things

[tiksie]

lol

the 1.3 was single carb and the 1.5 is dual carb

There was a 1.5L Breeze version aswell lol, very limited though.

[patto14]

the 1.5single carbs have good up and go.....
i keep most other 4 cylinder Non Vtec of Corse
sr20de Pulsars beat be but no via much at all
ca18de i can beat
im not saying it stupiedly quick but they good probs coz there so light w8

[~Sp33~]

UN TRUU..... EG Breeze..... 91-93 = 1.3Single Carb
93-95 = 1.5Single Carb have the proof in my shed lol

And Was Told Removing Computer And Emissions They Run Like Shit Coz it also controls cylinder temps and other various things

The point was that there is no dual carb 1.3L.


the single carb 1.5 seems to go alot better then the 1.3 twin carb in the Eg`s

[patto14]

opps my bad that was a typo i was ment to say 1.3 twin carb and 1.5 single carb

[~Sp33~]

i was ment to say 1.3 twin carb and 1.5 single carb

lol... I think that was the problem with the first statement.

[patto14]

No im look it up
1,3 was twin carb in the EG breeze b4 93 late 93 they updated to the 1.5 single carb

[patto14]

maby i was wrong but i swear i read it somewhere lol