NSXNEXT

iTrader: (2)

After you installed it, but BEFORE you started up the car for the first time, did you have to change any of the settings?

I'm gonna install mine in the next couple of weeks and before I blow my car up, I wanted to know what everyone did.

BTW, I went the smart way and bought the Frog Engine Controls harness. I should have it in the next week or so. Plug and play.

Thanks.

Neil

goldendragon576

Maybe I should know this but obviously I don't so....what's a VAFC??

TLlikeWHOA

yes neil....b4 you start up the car make sure the setting are for 6 in and 6 out...this determines the amount of cylinder the car has
-Eric

NSXNEXT

iTrader: (2)

Thanks Eric, maybe someday soon I'll be keeping up with you on the turnpike.

hzm82

Its a piggyback fuel computer and VTEC controller. Basically it can change when VTEC is engaged.

Description from APEXI webpage:
A'PEX introduces the first digital fuel computer that combines fuel computer functions with a VTEC engagement controller. The V-AFC features a user-definable, eight-point, adjustable fuel curve that can be set in 500 RPM increments. The range of fuel adjustment is +/- 50% at each of the user-defined setting points. The Fuel Adjustment function considers wide/narrow throttle and low/high camshaft settings, from which four different fuel maps are created (wide-low, wide-high, narrow-low, narrow-high). The integrated VTEC Controller adjusts the point at which the engine switches from the Lo to Hi cam during acceleration, as well as when the engine switches from the Hi to Lo cam during deceleration.

Due to the complexity of this product, A'PEX recommends having the V-AFC and other A'PEX electronics installed and tuned by authorized A'PEX Power Excel Shops.

sc354

so how many HP will this add to your car? or does it strictly modify the torque curve?

spyder5786

it doesnt add hp to your can, you can actually end up losing a lot. You need to get it tuned properly. It adjusts the vtec and fuel/air ratio. Lets you get vtec faster.

RACINGHART03

iTrader: (2)

Basically it plays with the map sensor voltage input to the PCM. The PCM will adjust injector duty cycle(more or less) to compensate for the map sensor voltage it sees. (Not the voltage it IS, since you adjusted it) Oh yeah,and you can change the vtec engagement points. .

PeterUbers

iTrader: (1)

It's a sham... most people I know who bought it... sold it!

you might pick up 1 or 2 hp .. but you run a greater risk of inducing engine vibration etc... i'd stay away from it... i've read better applications on the s2k .. but not the TypeS engines...