Yes I searched and found....mostly stuff for turbo'd cars. Im currently under the belief that my A/F should be around 13.0-13.5 under WOT.


Mods are:

P&P head
P&P gsr IM
Toda A cams
AEM V2
JDM ITR header
2.5" straight exhaust
11.3:1 CR
misc other stuff.

Tuning with Hondata

What should my A/F ratio be?

 

get an a/f gauge you woulent have to guess then....

 

Yes, that's a good range to shoot for.

 

13.7 to 14.0 is what i see alot so im assuming thats what everyone aims for.

 

if i guess i said about the same as he 14ish

 

whereever it makes power

 

check out this site...

http://www.importbuilders.com

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95 integra &raquo;</TD></TR><TR><TD CLASS="quote">Yes I searched and found....mostly stuff for turbo'd cars. Im currently under the belief that my A/F should be around 13.0-13.5 under WOT.


Mods are:

P&P head
P&P gsr IM
Toda A cams
AEM V2
JDM ITR header
2.5" straight exhaust
11.3:1 CR
misc other stuff.

Tuning with Hondata

What should my A/F ratio be?</TD></TR></TABLE>

Only the dyno will tell



Rule of thumb isthat NA Hondas like 13.5 or so and that's what I've had the best results with so far..But go to a dyno and see where it makes most power

 

I made peak power at 13.4:1

 

What about with Race Gas, Im using 110 Octane and my Air Fuels are around 13.0, I havnt tuned the car yet on the Dyno but baseline was at 230 hp @161 ft lbs. Maybe I will try leaning it out alot more and seeing if it will make more power. My plugs seem pretty white at 13.0 though.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FastAllmotorLsVtec &raquo;</TD></TR><TR><TD CLASS="quote">get an a/f gauge you woulent have to guess then....</TD></TR></TABLE>


Im going to have an O2 sensor, but Ill still be guessing as to where I NEED to set the A/F ratio. The only problem I have with the "wherever maximium power is", is that I want a good mix of power and reliability. I dont want to hear, well just set it to 12:1 or well 14.7:1 is the "optimum" point either....I want to hear reasonable suggestions. Im glad to see that I am getting resonable replies of around 13.5+/- .5 though, so thats probably where ill be starting from and going a little leaner or richer.

 

unfortunatly, with my b16 build i had a tuner who wanted to be SAFE. well truthfully, i would rather have 5 more whp all over than to be at "my favorite a/f"
so as i saw him dial it into a solid a/f there was a lean spot left and right at that spot HP was up bout 4whp unfortunatly, i coudlnt gety him to move my a/f curve all to that, so this time im tuning it myself

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMlyfestyle &raquo;</TD></TR><TR><TD CLASS="quote">13.7 to 14.0 is what i see alot so im assuming thats what everyone aims for.</TD></TR></TABLE>


WAY TO LEAN.....play it safe.....13.0-13.5

 

tune to power but make it safe.....if it makes most power at 13.7 i'd drop it down to 13.4 ish.....BE SAFE....make the engine last!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chad &raquo;</TD></TR><TR><TD CLASS="quote">tune to power but make it safe.....if it makes most power at 13.7 i'd drop it down to 13.4 ish.....BE SAFE....make the engine last!!</TD></TR></TABLE>


Thats what Im saying. Either way, the guy I was going to take it to seemed a little to happy about peak power for my personal preference, so to atlanta I drive. Anyway, if a tuner wont tune it to YOUR specs then it might be time to find a new one. Thats what I did....the guy didnt seem like if I told him to tune it to 13.0:1 that he would, so Im going to somebody else.

 

Also remember that when you tune a car on a dyno, it will inherently run leaner on the street.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AzSi22 &raquo;</TD></TR><TR><TD CLASS="quote">Also remember that when you tune a car on a dyno, it will inherently run leaner on the street. </TD></TR></TABLE>

Why is that? (I'm not refuting you, I have just never heard of this...)

 

because there's a lot more air flow when moving at 100+ mph than on a dyno with just a huge fan blowing at the car
On the dyno go for 13:1 or so..
When I wideband tune I aim for 13.4-13.5 or so..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AzSi22 &raquo;</TD></TR><TR><TD CLASS="quote">Also remember that when you tune a car on a dyno, it will inherently run leaner on the street. </TD></TR></TABLE>

correct.

I made power around 13.8:1 when I dynoed recently. I dropped it down to about 13.2:1 and put it on the road.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ce &raquo;</TD></TR><TR><TD CLASS="quote">because there's a lot more air flow when moving at 100+ mph than on a dyno with just a huge fan blowing at the car
On the dyno go for 13:1 or so..
When I wideband tune I aim for 13.4-13.5 or so..</TD></TR></TABLE>

also because there is a load being placed on the engine, so it has to work harder to accelerate the car then on an unloading dyno.

 

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

also because there is a load being placed on the engine, so it has to work harder to accelerate the car then on an unloading dyno.</TD></TR></TABLE>

This is correct as well, there will be other factors on the road vs. the dyno, ie. wind, vehicle weight, air conditions etc.

 

Mine was tuned to about 13.2.