I've been considering purchasing the Apexi VAFC and getting the car tuned, but have a few questions:
#1. What kind of power gains should I expect on an ITR with an AEM CAI, DC JDM4-1, Carsound Cat, and Apex N1 exhaust?
#2. I hear the car must be dyno tuned. What about tuning it with a gas-analyzer? #3. How do you dyno tune it anyway, and know where to set the VTEC engagement?
Thanks guys!

 

#1 - I hit 177whp with similar mods (stock b-pipe and can though) --> http://www.itr-nc.com/images/charlotte/patdyno.jpg

#2 - Not sure. Wideband O2 sensor + dyno is best

#3 - Check A/F ratios and power to add/remove fuel, and set VTEC point to "smooth" out the curve. See my plot above? Look at the difference in the curve of the graph with VTEC lowered a bit. After that, you couldn't feel VTEC, only hear it. That's what you want - smooth graphs

 

What year Type R do you have? What were you exact mods. I have AEM CAI, comptech 4-2-1 header and the mugen axel back. Did you only have I/H/E (just the axel back right) and get 177whp with a vfac fully tuned? Thanks!

 

Splat -- any idea what your whp was before the VAFC and tuning?

 

get some cam gears and tune them on the dyno at the same time. save yourself the dyno time and do it all at once.

 

I'd say 5-8 less. Just going by butt-dyno.

Setup:

2000 ITR #009
AEM CAI
JDM 4-1 header
2.5" Jeg's cat
STOCK exhaust (b-pipe flange modified to fit 2.5" cat, that's it)

 

you have a strong car. great numbers.

w/o a/f my car runs between 13/14 and ran 173.4/124.3 with just jdm 4-1, carsound, type one exhaust. now do you think i could extrapolate 5-8 whp with just a VAFC? maybe with intake i can produce similar numbers to yours...

 

HAD ........now boost ownz

 

werd, doc

b00st rox my nads now

 

Exhaust is your friend. I probably lost 1-2 peak hp with the bottlenecked stock setup. You will pick up a couple more with an intake and V-AFC. I'd say 179-180 not out of the question. You'll pick up a few lbs of torque, too.

 

*jots down VAFC on the long list of mods..*

 

Heh. My upgrade path was like this:

1. AEM CAI
2. JDM header + cat
3. V-AFC
4. Cam gears
5. Toda B's

V-AFC is, in my opinion, essential once you get to intake and header stage

 

Hell, I'd say do it before any other power mods.

Jason-
who would have one if he were allowed

 

hmmm with less mods I hit the same hps
176hps 126 tq
mods were
MSD digital 6
MSD Blaster HVC
MSD wires
NGK plugs
JDM Header
Greddy PE Exhaust
STR Cam Gears
thats it

 

VAFC's aren't allowed in the Honda Challenge?
Are there any events like these in the Western United states? Roll cage required... *dollar signs in eyes appear*

disorder- who is reading the Honda Challenge rule book


[Modified by disordeR, 3:04 PM 9/2/2002]

 

I didn't have cam gears for the 177 run. Stock b-pipe, t00

Just a Q - why all the ignition stuff?

 

edit- nm


[Modified by disordeR, 3:53 PM 9/2/2002]

 

What kind of turbo are you running? And is your bottom end stock?

 

Only the hybrid/h1 stunnaz are allowed to use them.

 

How much HP will the cam gears offer???

 

i ran that ignition for the built in two step launch rev limiter
and i had it from a previous car

 

Can't recall what turbo it is - I think in the neighborhood of a T04. Had to add another cylinder. Total displacement is 2.3L now out of the I5.

 

I was thinking about getting vafc......

 

adam get the vafc and take your car to clemons they have a wide bann O2 so you can see your A/F ratioit shows you how rich / lean at every rpm so you just bar up and down on the vafc at every rpm increment to get the perfect A/F ratio it isnt too hard give me a call sometime ill help you out

oh and get some skunk2 cam gears too

Jeremy


[Modified by skunk2 teg, 1:38 AM 9/3/2002]

 

181 whp with:
V-AFC
Toda camgears
DC JDM 4-1 Header
Carsound CAT with SMSP reducer
Stock CAT back