b16a2 motor, t3/t4 50trim. MAP2 ecu piggyback, full MSD setup.

throughout my powerband, my vtec used to kick in at 4500rpms, NOW with the turbo setup it feels like it bog's at 4500-5300. Then my powerband shoots up. Is that bog between 4500-5300 normal?

 

Sounds kinda like.........NO TUNE!

Is your car tuned? It doesn't sound like it.........please tell us your not running your car hard on a basemap.

You say "feel's like it bog's at 4500-5300" (which means you have not been to a dyno otherwise you would KNOW that your power dips there). Take your car to a dyno (or a good street tuner) and get it tuned.

ps - What's a "map2 ecu"??? Curious.

 

piggyback equals CRAP.
get a real tune.

 

I would like to ask the Honda-tech community why the hell half the new posts in the FI forum now include the words "Hack", "FMU", or "piggyback". They don't even attempt to ask about a basemap, they go straight to 2002-era **** and think that's the hot setup.

Can we elect a mod to IP-ban anyone with under 100 posts who obviously does not read the FAQ?????

 

ive been thinking this same exact thing.
i think it is because there hasnt been any info on the hack for awhile, so the noobs come across some old posts on it and think they found something great.
there is a reason why there hasnt been any good threads about it, because it blows engines, ive done it, and so have many others, and we all found out the hard way, its not the way to do things. get a chipped ecu and get someone to tune it.

 

well i mean, it is a piggyback ecu which has the map to run my car on boost. It is not standalone. The car has been tuned on a dyno.

I wasnt sure if this was a common thing, which is why i wanted to ask..

th

 

i know the old map ecu works on the supras.

but unfortunately for you everyone is correct. with the ecu chippers we have, and the freeware, and accessible systems, there is no real need for piggyback ecu's anymore.

the reason for these responses, is that i dont think many know about the map ecu for the hondas. at least i dont.

 

I really don't think that the focus of his arguement is this "piggy-back" vs standalone. Not at all. There are many classifcations of what a "piggy-back" based upon what a person's experience. Some, like AEM F/IC, and Emanage can work well. Others, like the V-AFC "hack" have mixed results, depending upon the purpose. Then there's the "chipped" market, which could go from Hondata S200 to Phearable's base maps, each with its own set of good and bad attributes. But no one is addressing the sheer call of the OP's question.. WAS THE CAR TUNED PROPERLY (regardless of what he used), AND IF NOT, PLEASE HAVE IT DONE.. Since the OP is not giving any information about what he used and how it was tuned to his application, any feedback that any of us give right now is pure bias and speculation.

I said all that to say... Since we don't know what you used, how the hell can we help you solve any issues?

 

yes it is kind of weird to have vtec engagment at 4500rpms

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RHD EG H2B &raquo;</TD></TR><TR><TD CLASS="quote">piggyback equals CRAP.
get a real tune.</TD></TR></TABLE>

hondata is piggyback, lets not put all piggybacks in teh same category, im dont use or like hondata but it certainly is not crap.

 

i thought hondata is a standalone unit???????????????????

from what im reading, i probably wont notice the difference between the two heads. if i do ill report back.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stalyun &raquo;</TD></TR><TR><TD CLASS="quote">i thought hondata is a standalone unit???????????????????

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

s100 is a chip within the factory ECU, s200 has a blue box that works in conjuction with the factory ecu, s300 has boards added to the factory ecu, kpro has boards added to the factory ecu, all there applications use the factory ecu, how is that stand alone?

 

i hope he is not tunning this with a VFAC or soemthing??

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KENetics1 &raquo;</TD></TR><TR><TD CLASS="quote">yes it is kind of weird to have vtec engagment at 4500rpms</TD></TR></TABLE>

why do you say that??


nevermind its a b16.... i thought it was a gsr..



Modified by gringotegra at 9:48 PM 6/16/2008

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blinx9900 &raquo;</TD></TR><TR><TD CLASS="quote">

s100 is a chip within the factory ECU, s200 has a blue box that works in conjuction with the factory ecu, s300 has boards added to the factory ecu, kpro has boards added to the factory ecu, all there applications use the factory ecu, how is that stand alone?</TD></TR></TABLE>

i consider the chipped ecu's a standalone. you are tuning the complete ecu from scratch. a piggyback has to work alongside the stock computer while the stock computer is trying to keep the motor running like a stock motor should run. it might be housed in the OEM computer but functionally hondata is a standalone ecu.

to the OP when it was tuned on the dyno did it seem to hit peak torque above 5k?

 

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

i consider the chipped ecu's a standalone. you are tuning the complete ecu from scratch. a piggyback has to work alongside the stock computer while the stock computer is trying to keep the motor running like a stock motor should run. it might be housed in the OEM computer but functionally hondata is a standalone ecu.

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

i still dont consider it a standalone, but we all have our opinions, i consider aem ems, haltech, motech type stuff standalone. i just don't like the idea of using a 15 year old computer board to tune my car, ive seen stock ecu's fail, now people are adding more stuff to them (s300/rtp/chips), just doesn't seem reliable in my eyes... thats not to say its not reliable or it doesn't work, i just don't prefer it.

 

heres a dyno chart. Notice the spike

 

I am presuming you mean dip, not spike. As for the dip, there is often a dip there when vtec hits (especially on a turbo car) that your tuner needs to get rid of. I don't know a whole lot about tuning timing at the vtec xover point, but I do know that the tuners I have spoken to all have said that it definately needs more fuel when that dip occures. When the turbo is spoolin and that vtec kicks in your engine flows a LOT more air very quickly and needs fuel to maintain the power increase for that added air.