LeesB

Does anyone know if I can run
my 550 injectors on my ls/vtec? I am waiting on my hondata, i have a vafc adjustable regulator and a 255 lph and a vortec fmu with a 12:1 disc. I am tired of waiting for my hondata and would like to run more boost i understand it wont be very streetable but if anyone has some info on tuning it would help so i am not leaning out. I plan on running 14 psi

any suggestions on baseline tuning?

crazyitr

What kind of turbo are you running?

LeesB

I have a garret t3-t4 with a spearco intercooler. Also what should my timing be set at right now i am at 10 psi. And i only have 3 posts left(new user ) so bunch the questions please. I also have a direct port kit with a 80 shot right now but i would rather turn up the boost then use the nos.

LeesB

help please I am racing again on 9/5 and nd to break into the 7's 1/8 mile
right now I am at a 8.121 on drag radials and i have slicks now
and i want to smash it

LeesB

is there nobody who can actually answer this question

CivicSiRracer69

search man there is a bunch of tuning tricks for the VAFC.

b18cls1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CivicSiRracer69 &raquo;</TD></TR><TR><TD CLASS="quote">search man there is a bunch of tuning tricks for the VAFC.</TD></TR></TABLE>

you can run the 550 with the afc but dont run the afc with with the fmu under boost tthere will be way too much fuel wiuth the fmu and the 550

also with the afc you will be limited to 11 psi

LeesB

why can i only run 11 psi
sorry i was all about nos the turbo thing is new to me
and if i can only run 11 psi what setting do i put my fuel
and how do i do a baseline tuning onthe vtec controller

b18cls1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LeesB &raquo;</TD></TR><TR><TD CLASS="quote">why can i only run 11 psi
sorry i was all about nos the turbo thing is new to me
and if i can only run 11 psi what setting do i put my fuel
and how do i do a baseline tuning onthe vtec controller </TD></TR></TABLE>

the stock honda map sensor only reads up to 11psi,its a 1.75 bar map sensor will only reap to 11,

as far as tuning goes set the afc to sensor type 6 in 6 out that will allow you to read to 11psi
then its time for a wideband to se afr, im not going to say set it at xx% atxx rpms and so on there are too many factors involved, in my honest opinion i would not use the afc i would use a chipped ecu setup for boost it allot cheaper than a afc and much better, there is a thread on here about the afc ignition curve that is verry good

here it is
https://honda-tech.com/zerothread?id=841443

LeesB

Nice i will check that out
also i have a shitty little missing link on my map sensor

Stewie

he's not using the hack so he can boost till what ever he wants. Can I ask what size injectors are you using now?

You can run 550cc injectors and turn up the boost provided that it will idle. However, the 550cc injecters certainly would not be a good match to the 12:1 disc. You'll have to step down with the fmu. Maybe 8:1??? Also, you'll have to tune the afc for your car to run properly out of boost.

That sounds crazy to me that your boosting 10lbs with a 12:1 disc! That means that your fuel pressure is over 150psi! Are you using braided lines?

LeesB

i am running stock injectors now it peaks 105 approx at 10 psi 11.5:1 afr kinda rich i know blows some fuel out the pipe at high rpms.

I have a picture of my set up if someone can host it and size it down
but i wouldnt run the fmu with my 550cc injectors according to someone else on this forum i dont know i guess its back to the dyno i go god damn it
i was hoping there was a base line tuning figure i could go off of and fine tune
but no one seems to know

b18cls1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Stewie &raquo;</TD></TR><TR><TD CLASS="quote">he's not using the hack so he can boost till what ever he wants.
</TD></TR></TABLE>

he said in the first post he was using the vafc so thats telling me the hack.

LeesB

thanks for the help anything else?