The engine is a B18B with Precision 780cc injectors. GM 3 bar map. Tuning is via uberdata. I'm having a really hard time getting this thing to idle or even remotely pretend to. I've read that with the larger injectors you often have to add a ton of fuel in the first few columns. I've tried about 15-20 burns and am not having any luck.

Any insight or a good larger injector bin would be appreciated.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ActiveAero &raquo;</TD></TR><TR><TD CLASS="quote">The engine is a B18B with Precision 780cc injectors. GM 3 bar map. Tuning is via uberdata. I'm having a really hard time getting this thing to idle or even remotely pretend to. I've read that with the larger injectors you often have to add a ton of fuel in the first few columns. I've tried about 15-20 burns and am not having any luck.

Any insight or a good larger injector bin would be appreciated.

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from what i call uberdata has a hard time idling large injectors. the injector pluse on my 450cc before was very very small. If i went bigger like 550, my tuner said its gonna be really hard to make it idle because uberdata cannot open and close the injector fast enough, and if you make the pluse too quick, it might not even open..

 

have you tried rasing your idle to like 900-1000? and also adding a lil timing around those columns?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by integlspwr2k &raquo;</TD></TR><TR><TD CLASS="quote">

from what i call uberdata has a hard time idling large injectors. the injector pluse on my 450cc before was very very small. If i went bigger like 550, my tuner said its gonna be really hard to make it idle because uberdata cannot open and close the injector fast enough, and if you make the pluse too quick, it might not even open..
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That's what I've heard as well, but I know people can get them to idle it just takes some work.

Someone is sending me a bin that should be pretty close and give me a good starting point. I'll update once I give it a shot.

 

bring your base idle up to about 1000, and idle timing up to about 19 degrees, and the injector should idle in the range of 1.2 ms.

 

Amazing, he goes on the UD forum asking for a map, but comes here on tuning advice.

BTW: you havent gotten the right answer. Ill monitor this thread and chime in when someone answers correctly since you obviously only want to use the UD forum for getting basemaps and everyone here knows more. Lets test your theory shall we?

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Also, integls, thats 100% false. You can idle as big of injectors on UD as hondata but i think hondata might idle them a tad bit better since from what i understand their various fuel enrichments are more refined. But i myself got a few minutes with a 550cc injector B18b1 (peak and hold at that) and it drove moderately well for how much time and the conditions i was given so that information is false.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tubegown &raquo;</TD></TR><TR><TD CLASS="quote">Amazing, he goes on the UD forum asking for a map, but comes here on tuning advice.

BTW: you havent gotten the right answer. Ill monitor this thread and chime in when someone answers correctly since you obviously only want to use the UD forum for getting basemaps and everyone here knows more. Lets test your theory shall we?

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Also, integls, thats 100% false. You can idle as big of injectors on UD as hondata but i think hondata might idle them a tad bit better since from what i understand their various fuel enrichments are more refined. But i myself got a few minutes with a 550cc injector B18b1 (peak and hold at that) and it drove moderately well for how much time and the conditions i was given so that information is false.</TD></TR></TABLE>


News flash for you:

1. I can ask whatever question I want, where I want to.

2. Seems logical to ask for a map bin ON THE FORUM OF THE SOFTWARE. Anyone who reads both sites (honda-tech and ecimulti) will know to go there to post up a rom bin since there is a "rom dumps" forum. However, there might be plenty of knowledgeable tuners on Honda-Tech that don't visit the ubedata site yet have used similar systems. Since Honda-Tech has a MUCH wider user base this seems like a logical decision.

3. I'm assuming this is a mod from the uberdata forum who was being a dick to me over there because making these injectors idle is supposed to be a "simple concept". Oh and because you told me to look at my wideband on a car that isn't running

Thanks for being helpful to a person asking a simple question. You are the one who had to go and be an *** when you didn't know the whole situation. Good job promoting the ecimulti site.

Donating to a site that provides free software, then having the mods (or whoever) act like dicks to you when you ask a tuning question on another forum =

 

Donating to blake is donating to Blake. I dont get paid so i can act however i please. I only get snobbish when people like yourself give the uberdata forum half the information and Honda-tech users more information. It it was switched, i could have answered your question in about 3 minutes. If you noticed none of these people knew about how to fix your problem. I on the otherhand did once i found out you had a 3bar map sensor(which took finding it on this site). See the difference?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tubegown &raquo;</TD></TR><TR><TD CLASS="quote">Donating to blake is donating to Blake. I dont get paid so i can act however i please. I only get snobbish when people like yourself give the uberdata forum half the information and Honda-tech users more information. It it was switched, i could have answered your question in about 3 minutes. If you noticed none of these people knew about how to fix your problem. I on the otherhand did once i found out you had a 3bar map sensor(which took finding it on this site). See the difference?</TD></TR></TABLE>

None of these people? Looks like you are a Honda-Tech member to me.

 

so what's the status guys . . . I got some 550's coming in that I was going to use and tune with uberdata, so will I have a hard *** time getting my car to idle? It's a B18A1 in a 92 civic ex running a p28 ecu . . . ofcourse I know I gotta disable vtec.

 

large injectors aren't the issue, its the 3 bar .

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tubegown &raquo;</TD></TR><TR><TD CLASS="quote">Amazing, he goes on the UD forum asking for a map, but comes here on tuning advice.

BTW: you havent gotten the right answer. Ill monitor this thread and chime in when someone answers correctly since you obviously only want to use the UD forum for getting basemaps and everyone here knows more. Lets test your theory shall we?

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Also, integls, thats 100% false. You can idle as big of injectors on UD as hondata but i think hondata might idle them a tad bit better since from what i understand their various fuel enrichments are more refined. But i myself got a few minutes with a 550cc injector B18b1 (peak and hold at that) and it drove moderately well for how much time and the conditions i was given so that information is false.</TD></TR></TABLE>

you can make 1000CC injectors idle too. just that your idle is gonna be at 2000rpms.

high idles =

 

I believe the newest version can help you with your problems, check out the uber site.

 

Also have another answer, the 3bar scalers are off almost 100%, not try to search the website to find out how to fix it. Maybe putting in smaller injector values in uber say 600 or so would help you out.

 

scaling the map for an injector ~150% smaller seems to work ok for the 3 bar.