i have no clue which of these items is a better modification.
A new VAFC II or a Hondata
I have a 97' Type-r w/ jdm ECU
It seems a bit more expensive to get a Hondata than VAFC but is it more tuneable or will it yeild more than just a few horsepower more than the AFC?

I am going to stay all motor but i want good track use with whatever option i get.
please just let me know if you have any opions....

 

Hondata totally owns vafc. I think you'll find that those that have hondata will say it is well worth the price, as long as it is tuned by someone highly competent.

 

if just straight I/H/E boltons a vafc is not even required...

if highly modded with internals and cams...
hondata ownz the vafc

 

i just have a header and my car runs lean, thus i'm getting the vafc to richen things up.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by magic hat #9 &raquo;</TD></TR><TR><TD CLASS="quote">i just have a header and my car runs lean, thus i'm getting the vafc to richen things up.</TD></TR></TABLE>

your motor is a freak...

 

So at what point am i supposed to Get a Hondata?

Highly modified or just get it from the getgo so i can tune for every part so my full potetial is their everytime????

 

whether it's "highly" modded or not, the hondata owns the vafc, no question.. even with a stock itr decent midrange gains can be seen with good tuning using either of these.. remember tho, these fuel controllers are only as good as the tuner.. if you don't have a decent hondata tuner in the neighborhood i'd opt for the vafc as you can make adjustments yourself (this is assuming you're not buying a rom editor and programmer with your hondata).. but if you've got someone like sgt in your neighborhood it's not even a question imo.. hondata, hands down.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hityouwithabang &raquo;</TD></TR><TR><TD CLASS="quote">So at what point am i supposed to Get a Hondata?

Highly modified or just get it from the getgo so i can tune for every part so my full potetial is their everytime????

</TD></TR></TABLE>

hope you are a rich man if you are considering this...

i think its stupid to go hondata if you are just gonna bolt on a header

 

What about AEM? Gotta love a 100% customizable ecu

 

Hondata kicks ***. just get it tuned by someone that knows what they are doing and youll see some nice gains. and when and if you get cams youll be able to tune it again for even more gains.

good luck with your new toy.

 

I'm a fan of the AEM EMS a real standalone...Hondata is good ****, I guess it really depends on what you need, just great tuning ability, Hondata, if you're serious about real time tuning, AEM.

 

The gains between the VAFC and a Hondata will be very small on a bolt-ons only setup. The VAFC does just fine on bolt-ons setups.

 

you can set ignition timing with hondata. and in most cases it will cheaper than a vfac, tuning not considered. you can get an s200 for around 250$ the apexi controllers are usually over 300$.

i am satisified with my s200 so far, i have not had it dyno tuned yet b/c i am not finished modding my engine, but there are dozens of programs that can be burned into the chip in the meantime. i am running the mugen program now.

some people pay 1000$ for an untunable mugen ecu, whats the point.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by euclid &raquo;</TD></TR><TR><TD CLASS="quote">you can set ignition timing with hondata. and in most cases it will cheaper than a vfac, tuning not considered. you can get an s200 for around 250$ the apexi controllers are usually over 300$.</TD></TR></TABLE>

But you're forgetting that you must convert from OBDII to OBD I, so you need a different ECU (P28 or something like that) and an OBDII-OBDI harness, which makes the Hondata a fair bit more expensive.

 

not trying to bash any systems out there but here's my .02 from my experiences:

hondata

positives
1 - fairly inexpensive system (if you dont add on a million options)
2 - lots of support in US and here on h-t
3 - many tuners all over
4 - pretty good collection of base maps depending on the tuner you go to so alot of time you'd just have to fine tune a few things

negatives
1 - everytime you WANT to change something you have to reburn a new chip
2 - not a real standalone (still piggyback to factory ecu)
3 - will get expensive if you want to tune it yourself since you have to buy all the perephial equipment (rom burner, chips etc), or if you bring it to a tuner it'll cost too, either way

power FC

positives
1 - full standalone
2 - when used with datalogit kit you have full control of all parameters
3 - real time tuning, you can change settings on the fly, partial throttle tuning, etc etc
4 - if you know what you're doing, you can do all tuning on your own; just pay for dyno time!!
5 - no burning crap like hondata

negatives
1 - although there is some support, its not as vast as hondata; power excel dealers will not even talk to you, and apex usa has no clue
2 - pricey after you add everything up (~1500 including datalogit, and u have to get a laptop on top of that too)
3 - only comes with stock base maps, so lots of work involved, although there is a datalogit community that shares base maps which anyone can use as a decent starting point


i wouldnt consider any of these routes though until you have gotten to the point where you're building a motor up internally (cams, up compression, etc). for just bolt-ons VAFC is more than good enough, or even a kenji chipped ecu could do the trick. sorry didnt include aem in this since i have no exp with it but i have shyed away from them since they always seem to creep up with issues

 

thanks for the info.
i'm probably going with a hondata tommorrow i will find out how much i will need to spend for the ecu, s100, and harrness. plus also dyno tuning it as well as getting a base run. i am also going to hook-up aem cai and see the gains aswell.

i will keep you informed on how this all works out......

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CanadianR &raquo;</TD></TR><TR><TD CLASS="quote">

But you're forgetting that you must convert from OBDII to OBD I, so you need a different ECU (P28 or something like that) and an OBDII-OBDI harness, which makes the Hondata a fair bit more expensive.</TD></TR></TABLE>

youre right, i completey forgot that your cars are obd2, i did not have to deal with a conversion b/c my car is obd1 and my stock ecu was a p28, so it was cheaper for me to use hondata.

a good friend of mine also has the hardware to reburn the chips, and an extensive collection of maps. so i take for granted the ability to make modifications. sorry.