heres the dyno plot of my vafc i installed last weekend. i posted atopic last thursday but here is the plot i made 6 whp and about 2 ft lbs of torque.




Modified by 93preludevtec at 9:40 PM 6/10/2003

 

holy **** can anyone resize this for me

 

resized.

 

Nice. What other mods have you done to the car?


Edit: Nevermind, I just saw the mods below the plot

 

my mods are listed on the bottom of the plot but... I/H/E, dinan chipped ecu and the vafc.

 

one question i had is

if you look at about 4700-4800 you can see on the "tuned" run the horsepower dips below what the the baseline run. i have been watching the vafc while driving and the cor. is set -0.1% to -0.2% in this area. i also "think" i can feel a slight bog around this area. why would they lean it out like that? can i just set it back to 0.0%, should i do this if the "butt dyno" is telling me to? BTW please spare me the "inaccuracy of the butt dyno" speach.

 

Those numbers are a little lower than what I had. With I(DC DAC)/H(DC CC)/E(Greddy PE), the Dinan chip, and AEM pulleys, I made 178. No V-AFC. I want to get one after I get my built motor back, this is interesting, thanks for posting it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94vtecmn &raquo;</TD></TR><TR><TD CLASS="quote">Those numbers are a little lower than what I had. With I(DC DAC)/H(DC CC)/E(Greddy PE), the Dinan chip, and AEM pulleys, I made 178. No V-AFC. I want to get one after I get my built motor back, this is interesting, thanks for posting it.</TD></TR></TABLE>

yeah i was a little upset with the baseline run but oh well. i thought stock(4th gen, 100k+ miles) preludes should be putting out 170 whp.

 

I have two friends with -5 set all the way across and vtec x over at 4800 rpm on fifth gen. and they swear up and down they get way better power that way (and thats after they paid 500 to dyno tune.) They both have 5th gen with i/h/e/up/vafc.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by atlprelude01 &raquo;</TD></TR><TR><TD CLASS="quote">I have two friends with -5 set all the way across and vtec x over at 4800 rpm on fifth gen. and they swear up and down they get way better power that way (and thats after they paid 500 to dyno tune.) They both have 5th gen with i/h/e/up/vafc. </TD></TR></TABLE>

ok?

 

do you have the wideband plot as well?

 

what do you mean? i'm not sure what a wideband plot is

 

It shows your A/F ratio

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by piotrush &raquo;</TD></TR><TR><TD CLASS="quote">It shows your A/F ratio</TD></TR></TABLE>

thats what i thought, no i don't have that but i might be able to get it from the shop. i forgot to ask them when i was there. i spent almost 4 hours waiting so i wasn't in my right mind but i talked them down 50 bucks.


Modified by 93preludevtec at 6:54 AM 9/11/2003

 

What name brand of your i/e/h

 

aem cai, dc cc, 5zigen fireball catback

 

cool i have aem cai, greddy header, apexi n1 and some 2.5" hi flow cat don't know name brand . wonder if i can make the same hp

 

my baseline with those mods minus the cat but with the chipped ecu was 169.9.
but i think thats pretty low for prelude whp with those mods

 

bump from page 2

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93preludevtec &raquo;</TD></TR><TR><TD CLASS="quote">one question i had is

if you look at about 4700-4800 you can see on the "tuned" run the horsepower dips below what the the baseline run. i have been watching the vafc while driving and the cor. is set -0.1% to -0.2% in this area. i also "think" i can feel a slight bog around this area. why would they lean it out like that? can i just set it back to 0.0%, should i do this if the "butt dyno" is telling me to? BTW please spare me the "inaccuracy of the butt dyno" speach.</TD></TR></TABLE>

 

The butt dyno is inaccurate Can't really say anything about your dyno graph without the a/f curve along with it.

 

thats not bad with some head work and type s pistons the vafc will do even better 200+whp easy also u should do a new fuel system for even better gains
good luck
that thing will kill on the high way with those mods

 

u should do 150 plus easy

 

with your same mods i have been in a prelude up 2 about 138 or so

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b18c1guy &raquo;</TD></TR><TR><TD CLASS="quote">with your same mods i have been in a prelude up 2 about 138 or so </TD></TR></TABLE>
Pssss please I have I/H/E VAFC producing 176 on a 5th gen and I'll just tell you that I could easily get to 150. I was doing 130 no problem the other. And a my buddy was doing 125-130 in his LS integra. Like I said pssssss top speeds are nothing special.
I feel like a ricer, talking about top speeds.

I didn't read the entire thread so don't know if ya'll were talking about top speeds.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b18c1guy &raquo;</TD></TR><TR><TD CLASS="quote">also u should do a new fuel system for even better gains
good luck </TD></TR></TABLE>
Um, please explain how an upgraded fuel system will increase power.