product question on apexi stuff plz help...!

jdmjerry07 · Post by **jdmjerry07** » Wed Dec 12, 2007 12:10 am

what is a good product to buy that will be able to tell me my air fuel mix change vtec show rpms all that good stuff... am i discribing the apexi vtec controller or is that all it does... and what is a piggyback unit? plz help im confused with all this thanks.... jerry

Spork · Post by **Spork** » Wed Dec 12, 2007 12:24 am

completely pointless on a stock/close to stock motor...that's what you are describing.

but yes, thats basically what you are describing... PM me if you're interested in one, I know where you can get one.

JonDubya · Post by **JonDubya** » Wed Dec 12, 2007 12:27 am

Doesn't the vafc show bogus AF ratios?

piggyback unit is one that feeds fake signals to the engine's computer in attempt to get the desired fuel mixes and such.

JustRob · Post by **JustRob** » Wed Dec 12, 2007 12:31 am

The A'PEXi V-AFC dosn't show your air/furl ratio. Yes, the V-AFC can be condsidered a piggyback unit. A piggyback engine managment system is...

NASIOC wrote:This is an engine management option that works in conjunction with your stock ECU. Depending on the manufacturer, this solution works by the piggyback unit controlling some engine management functions and the stock ECU controlling others. This form of engine management is best suited for people who:
a. Will probably modify their vehicle frequently and require additional tuning
b. People with the ability to do their own tuning
c. People that live close to a tuner
d. People that want to get the maximum power and safety out of their car

It is important to mention that most piggyback units come with base maps. These base maps work very similar in function to a reflashed ECU whereas you can run the base map and be 100% fine, or when the day comes for someone to tune their own car or have it professionally tuned, they may do so.

Examples of Piggyback Engine Management are Unichip, Xede, UTEC, and others.

It sounds like your wanting a V-AFC and a wideband O2 sensor. But I don't think you need any of this. Whats done to your car?

Spork · Post by **Spork** » Wed Dec 12, 2007 12:33 am

the VAFC alters the MAP signal to the ECU in order to make the ecu alter its fuel correction accordingly

JustRob · Post by **JustRob** » Wed Dec 12, 2007 12:33 am

Spork;84139 wrote:the VAFC alters the MAP sensor signal to the ECU in order to make the ecu alter its fuel correction accordingly

Fixed

Spork · Post by **Spork** » Wed Dec 12, 2007 12:40 am

meh, long week indeed.

jdmjerry07 · Post by **jdmjerry07** » Wed Dec 12, 2007 2:21 am

im interested in taking it off your hands if u think it would be worth doing i have header back exhaust, intake, and gsr throttle body as far as motor is concerned... i thought that setting vtec 500 rpms lower at 5 instead of 6 would help me out more and that making sure my air fuel mix is still good with the intake and bigger throttle body making these adjustments i would think to see a little increase right?

jdmjerry07 · Post by **jdmjerry07** » Wed Dec 12, 2007 2:26 am

i do not appreciate the whole ricer of the week quote either i am by far one and im pretty sure my car is hellas jdm and i am 2 sir i have a freakin omni power symbol tatted on my wriste duude ( to symbolize my love for cars and sweet jap parts ) and the whole quote you have there was kinda a joke there so yeah... in defense to myself there and to not look like an idiot

JonDubya · Post by **JonDubya** » Wed Dec 12, 2007 2:30 am

jdmjerry07;84241 wrote:i do not appreciate the whole ricer of the week quote either i am by far one and im pretty sure my car is hellas jdm and i am 2 sir i have a freakin omni power symbol tatted on my wriste duude ( to symbolize my love for cars and sweet jap parts ) and the whole quote you have there was kinda a joke there so yeah... in defense to myself there and to not look like an idiot

PERIODS! USE THEM.