I did my first dyno run today on a dynojet in Tucson AZ.
165whp @ 6900rpm, 138 lb/ft @ 5200rpm

Mods: DC header, 2.5 exh, hi-flowcat, hi-flow resonator, AEM pullys, AFPR + Aem fuel rail, Apexi voltage/ground stabilizer (i know, i know), 14lb 17" rims, K&N filter on generic short ram intake w/heat wrap, Mobil 1 synthetic 5w30 oil, new plugs and wires.

OEM everything else. I set the Air/Fuel ratio to about 12.8 +/- .2 using my fuel pressure regulator...its all i could do for now. Motor has 96,XXX miles, 5spd.

What do you think? Is this ok for a USDM motor w/ basic boltons?
To see the graph, go to myspace: scottgarner1




Modified by scootertribe at 4:29 PM 2/9/2007

 

looks ok

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by scootertribe &raquo;</TD></TR><TR><TD CLASS="quote">I did my first dyno run today on a dynojet in Tucson AZ.
165whp @ 6900rpm, 138 lb/ft @ 5200rpm


OEM everything else. I set the Air/Fuel ratio to about 12.8 +/- .2 using my fuel pressure regulator...its all i could do for now. Motor has 96,XXX miles, 5spd.

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

isnt 12.8 a bit rich for NA setup?

 

Ya know, I'm not too sure. The only real reference I used to determine that is a book I got called "How to build High horse power Hondas"
Its a very technical book and it showed a nice air/fuel ratio graph showing where "most" engines make best+safest power, and 12.8 was it.

Do you think there is more power to be made if I lean it out?

 

With a much better tuning tool you can make alot more power, back in the days on my old H22A4 i made 181whp with just I/H/E/VAFC. Save up some cash and get a Hondata or if you dont plan on doing much more even get a crappy VAFC. But their is alot more power to be made from your set-up.

 

Well, thats good news. My next goal is a good tuning device. Probably Emanage ultimate... However the guy who ran the dyno said I could only expect about 5hp even with tuning! wtf?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by scootertribe &raquo;</TD></TR><TR><TD CLASS="quote">Ya know, I'm not too sure. The only real reference I used to determine that is a book I got called "How to build High horse power Hondas"
Its a very technical book and it showed a nice air/fuel ratio graph showing where "most" engines make best+safest power, and 12.8 was it.

Do you think there is more power to be made if I lean it out?</TD></TR></TABLE>

you can ask a few tuners, what they reccomend, i have that book along with many others.. they offer great back ground info and basics, but def something to read and take with a grain of salt..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by scootertribe &raquo;</TD></TR><TR><TD CLASS="quote">Well, thats good news. My next goal is a good tuning device. Probably Emanage ultimate... However the guy who ran the dyno said I could only expect about 5hp even with tuning! wtf? </TD></TR></TABLE>

My base run was around 163whp and after the VTEC was moved to 4700RPM i made 175whp. Once the fuel was tuned i made 181whp. I think you got a good 10-15whp waiting to be freed up.

 

What'd you use to tune with your SH?

 

Most of the dyno charts that I have seen have air/fuel ratio around 13.4 ...Iono man, 165whp is usually made with stock everything h22 you can definitely gain a lot more hp with better tuning. Good luck and keep us updated

-Moh

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vinuneuro &raquo;</TD></TR><TR><TD CLASS="quote">What'd you use to tune with your SH?</TD></TR></TABLE>

VAFC

 

175WHP/140TQ is the benchmark.

The 181whp is a little high.....

Assuming DynoJet #'s.....

Throw a VAFC on there, move VTEC accordingly, lean it out a little bit and mid 170's should be there...

 

AEM Intake, DC Header, AEM Pullys, Greddy EVO, VAFC. I would guess he can do better with his mods.

 

Sweet, im glad to hear that about 175whp is easily possible w/ my current mods. Like I said, id like to get emanage ultimate soon to help that. I wonder why Honda didn't set the vtec to engage at 4700 from the factory if it makes so much more power?
Thanks for all the advice.

 

How is lowering your vtec engagement point supposed to add HP? I mean sure you might more sooner, but after the normal 5k it should be the same, right?

 

It doesnt "ADD" horsepower but it opens up more power through the RPM range. Can you see the difference in the HP where the line is at? When the VTEC was in stock engagement the car made 118whp at that particular RPM, with the VTEC lowered and tuned it now made 145whp at the same RPM spot.

145 - 118 = 27whp Difference!!

It gains alot of power in the mid range.

 

will get my VAFC on soon and tune it see what i will get

 

what kind of dyno? How does the graph look? What RPM does the power start to drop off on the torque and hp?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98vtec &raquo;</TD></TR><TR><TD CLASS="quote">what kind of dyno? How does the graph look? What RPM does the power start to drop off on the torque and hp?</TD></TR></TABLE>

Yea what's the deal with that graph, are the RPM's right? I can't see a *clear* VTEC engagement point on either line.

Edit - Ahhh it's graphed against MPH and no RPM's....Show us the RPM version

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94Vtecluder &raquo;</TD></TR><TR><TD CLASS="quote">Yea what's the deal with that graph, are the RPM's right? I can't see a *clear* VTEC engagement point on either line.

Edit - Ahhh it's graphed against MPH and no RPM's....Show us the RPM version </TD></TR></TABLE>

i was talking about the OP's graph.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98vtec &raquo;</TD></TR><TR><TD CLASS="quote">i was talking about the OP's graph. </TD></TR></TABLE>


It's on myspace...I'll post it for homeboy

 

Finito Finito's



Be nice if you could post a a/f ratio as well.

 

that is kind of low for those mods, I got 163 whp with only short ram intake and aem pullies

 

Thanks for posting that man, anyway, the a/f ratio was around 12.7 or so, + or - about .2
As mentioned earlier I have NO way to tune really, only an AFPR...
If others have been making equal power w/ less mods, i'll check my compression some time soon i guess.

Is that A/F ratio too rich compared to what you guys have been runing?
Also, this was done on a dynojet. Thanks for the input.

 

me not impressed