i've tuned over 50 high hp hondas (400+) and so many of them does not like boost over 15psi. seems like an ignition problem but it's not. i'd say out of 50 maybe 20 of them does this. seems as if the dizzy crap out or handle it or something. since most of these high hp hondas already have msd external coils and moduls I can not figure out why they do this. you can change all ignition system like. dizzy, cap, rotor, wires, plugs, coil. eveything of the igiotor system and it still seems f up. also alot of these car do also run stock ignition and there fine too....werid....

shine me on this will ya whoever can help.

 

so its not an ignition problem? or is it?


chances are its in the tune? what are you tuning with?

also are all the builds the same? if not then dont pile them into one big category to diagnose a problem.

also 15psi with what turbo?

are these builds stock sleeves? stock internals?

i really doubt the stock ignition system is having trouble keeping up unless your running some serious power.

people will need more details before they can even begin to help you.

simple post will get simple results...take the time then come asking why these dang honda's just cant handle boost..........................?????

 

news flash professional, if you READDDDD my post you'd see that I didn't say "dang honda's just cant handle boost" Id said "WTF is wrong with these dang honda's at high boost".

btw i'm not talking about little low hp engine's please READ. MAKE ONE OF ONE, i'd said, 15psi, and 400+hp. doesn't that tell you it's a pretty dang big bad setup.????? guess you don't know about power too well

edit: a little turbo will not make 400+@ 15psi


Modified by onefastek9 at 9:40 PM 6/4/2008

 

quick simple question that may be overlooked by some people, which im sure u check as a tuner.. what map sensor are they using?

 

some use gm 3 bars, some use stock. i've seen many using stock doing over 15psi 400hp no problem. then again some using a 3bar has problem and some not.

 

hey man nothing personal its all in order to get a better understanding of what your asking so more people can more accurately help you diagnose and fix your problem.....


i still dont know your original question/ problem,

is the ignition system giving you issues, not firing when they are suppose to? or not firing all together?

i know you said 400+ engines but i know a few 400+ cars than ran on systems that had msd etcetc and switched back to stock ignition systems and the problems they had at high rpms went away.

how are you noticing said symptoms?

are you using any type of datalogging or wideband or what?

nothings meant to be an insult dude jsut trying to know what your working with..

are the motors tuned with hondata, or a similar standalone system?

 

it's cool man. and yea it does it ONLY at higher boost like anywhere from 13plus.

one example,

b18c5 turbo comes in to tune, starts out at about 5psi, perfect tune all the way to about 13-15psi. then the car spits and misses like crazy, some cars a little at certain rpms, but some does it all the way the r's, using aem to tune. so ofcouse we switch over to s300, same thing, remove s300, emanage install, same thing. complete ignition change to ALL new stuff. same thing......a/r's are perfect along with timing. I jus don't understand why so many of these hondas and not just a few of them do this??

 

is it street tune or dyno?

also im def. not a forced induction expert so i wont even try to be one lol.

have you tryed posting this situation in the forced induction forum?

 

use colder plugs and make the gap smaller

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91civicDXdude &raquo;</TD></TR><TR><TD CLASS="quote">use colder plugs and make the gap smaller</TD></TR></TABLE>

try that too.....

all dynotuned

 

How are they using Stock map sensors, when stock ones cant read more than about 11 Psi? I mean yea it can handle more power but how are they running correctly

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by standbackimapro &raquo;</TD></TR><TR><TD CLASS="quote">How are they using Stock map sensors, when stock ones cant read more than about 11 Psi? I mean yea it can handle more power but how are they running correctly</TD></TR></TABLE>

you can, you just wont be able to tune to higher points in as psi, and they will all share the same points at 11psi+ instead of having it's own points, kinda like a afc how it only has rpm points and not a point for each move the engine or turbo makes. I don't think I even understand what I just said....but you get what I mean...lolz