well i took my 07 Si to the dyno yesterday for the AR Fab dyno day... She has 600 miles on her now.. And is still bone stock and i wanted to see what she would put down.. As you can see they are under rated as they are saying 197 stock which is flywheel Hp and you usually lose 18-20% through the driveline which would put my about 20Hp less than what i made....









Here's the vid
Click here to see Video

 

Very nice, glad to have you "aboard" the FG group.

From your old hatch *RIP* i'm sure your si will be

 

Thats how many miles I had when I did mine. Yours did more though.

 

good numbers

 

Not bad, but keep in mind that DynoJet numbers are often 5% to 10% higher than results from other dynos. Every dyno reads differently too. You can't really compare dyno results to anything other than more results from the same dyno.

Also, driveline loss for front-drive Hondas is not usually as high as 18% to 20%. It's more like 10% to 15%. That means you could expect 167 to 178 horsepower at the wheels... but again, keep in mind that every dyno is different and this one could read slightly high.

 

pretty nice numbers!

 

where you located in md? anyway I think each dyno is different since when I dynoed mine stock I got 175 hp and that was on JE performance's dynapack.

 

w000t to stockness..

w00t to awesome vtec transition.. intense sarcasm

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yobtah &raquo;</TD></TR><TR><TD CLASS="quote">Not bad, but keep in mind that DynoJet numbers are often 5% to 10% higher than results from other dynos. Every dyno reads differently too. You can't really compare dyno results to anything other than more results from the same dyno.

Also, driveline loss for front-drive Hondas is not usually as high as 18% to 20%. It's more like 10% to 15%. That means you could expect 167 to 178 horsepower at the wheels... but again, keep in mind that every dyno is different and this one could read slightly high.</TD></TR></TABLE>

this dynojet is pretty accurate.. no bs inflated numbers like most do... and driveline loss is more than 10% .. hense the rsx-s with a aem v2 that made less power than me

 

with the amount of variables that effect a dyno (types of dynos, climate, elevations) its proly best to just guesstimate we get about 185 to the wheels, because i have seen some as high as 192 stock, and some as low as 174... so... thats my two centrinos.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spoonlongblock &raquo;</TD></TR><TR><TD CLASS="quote">where you located in md? anyway I think each dyno is different since when I dynoed mine stock I got 175 hp and that was on JE performance's dynapack.</TD></TR></TABLE>

i'm near hagerstown md

 

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

this dynojet is pretty accurate.. no bs inflated numbers like most do... and driveline loss is more than 10% .. hense the rsx-s with a aem v2 that made less power than me </TD></TR></TABLE>

Accurate when compared with what? Another dyno? That's the problem... there's no good basis for comparison other than more cars on the same dyno.

An RSX-S making less power on the same dyno is a much better comparison. It would be interesting to see the your graph compared with the one for that car.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Caveman74 &raquo;</TD></TR><TR><TD CLASS="quote">Thats how many miles I had when I did mine. Yours did more though.</TD></TR></TABLE>
Was yours on a Dynojet or something else? If you have the chart, I'd be interested in seeing it.

We all know that Honda uses a more aggressive HP rating now instead of the SAE Net that is still being used by some manufacturers. It's a little closer to wheel HP than previous standards.

A completely stock B18C5 in a DC2 ITR will usually return something like 165-172 Dynojet HP, if that helps in judging the difference.

I think that if Honda advertised the K20Z in the FG2 as a 210 HP motor, they'd have got away with it, based on the figures I'm seeing.

I like these FG2 a lot.

 

That's about what my Si did (within ~1 hp) on a Dynojet.


Modified by zygspeed at 7:33 PM 11/1/2006

 

dang thats crazy becasue i was just on streetfire randomly and just saw that vid. now i come to honda-tech.com and see this! what a small world.!

 

Nice Numbers and hella nice car!

Remove the fuse for Daytime running lamps... looks 100 times better without them.

 

damn thats pretty sick...and i'd leave the DRL's alone lol i watched the vid. i heard some guy scream vtec! hhaha someone's happy

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tallwin &raquo;</TD></TR><TR><TD CLASS="quote">Mine was also on a Dynojet 248.

Stock 185wph
AEM CAI, EVO II and Hondata IMG 189wph (gain was in the midrange)
Supercharger 249whp

So again, petty close to the same as mine for Stock

</TD></TR></TABLE>
was this on the same dyno? were conditions diff.. your gains seem very low from the mods you had before the blower.. 189 is kinda low ...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ReDHaTcHyGuy &raquo;</TD></TR><TR><TD CLASS="quote">
was this on the same dyno? were conditions diff.. your gains seem very low from the mods you had before the blower.. 189 is kinda low ...</TD></TR></TABLE>

All the Dyno's were done on the same machine. The 2nd run (after CAI, Cat-back and IMG), was done the following day of the stock run. The only difference was the time of day and temperature. The stock run was done in the early morning when the temperature was around 65 degrees. The 2nd run was done in the heat of the afternoon in the summer when it was around 90+ degrees.

The run with the supercharger was done in the middle of the day in the fall, the temperature was around 72 degrees when they ran it.

Humidity is pretty consistent around here, except when it is getting ready to rain.

You think the weather had that much impact?

 

obviously you had a reflash... which takes into account a wide # of variables hence not much of a peak whp increase but more of a midrange increase. also hondata probably took into account not everyone is running 93 oct... so spark timing maybe a lil lower than what would produce max power & also fuel is probably rich up top too for the same reasons

try to get SAE #'s next time.... also get printouts of your a/f ratio

gains from 4K to 6K will make you accelerate much quicker....top end gains are really only good for drag racing

 

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

All the Dyno's were done on the same machine. The 2nd run (after CAI, Cat-back and IMG), was done the following day of the stock run. The only difference was the time of day and temperature. The stock run was done in the early morning when the temperature was around 65 degrees. The 2nd run was done in the heat of the afternoon in the summer when it was around 90+ degrees.

The run with the supercharger was done in the middle of the day in the fall, the temperature was around 72 degrees when they ran it.

Humidity is pretty consistent around here, except when it is getting ready to rain.

You think the weather had that much impact?</TD></TR></TABLE>

yea i'm sure it made a diff.. i've seen ppl gain alot more from those mods compaired to baselines...

 

I have always ran my car on a dynapack dyno, when I go boost I will see how much power I make on it then try another one to see if there is a difference

 

correct me if im wrong, but with 600 miles should you be breaking that motor in? keeping the rpm's significantly low

 

600 is plenty.. and they are broken in some before they install them in the car.... breaking a motor in is just a old myth anyway

 

cool, doesnt take much to convince me