honda j-spec. 4-1 header, 2.5cat&exhaust, comptech foam filter, larger injectors, f.p.r. and hondata
torque is ~ 125 at 6-7K
oustide temp. in 90's

other mod is comptech icebox - still wondering if stock air box would work better in this setup

comments, suggestions, opinios?

 

A/F = 17.5??????

 

Why the larger injctors ?

Might be running a bit lean at +- 3000 rpm to 4000 rpm.

Did you do only two runs ?

 

What size injectors and why? Lean as a ****.

 

these are recent runs, just base runs, no tuning this time

larger injectors are in mind for future modifications + stock were running at max past 8500

 

ignore that

 

Maxxed out stock injectors on a stock motor?

 

Thats what honda does. They like to run 100% at higher rpm stock.

 

You're running quite lean throughout the rpm band...I prefer to have it ~13.0:1, but that's me...

Austin

 

why is the torque going up and down so much around the midrange?

 

That's the a/f.

 

Can you explain how you know its the a/f and why the HP doesnt jump around as well? Thx

Ryan, who is just trying to learn.

 

The scale on the left of the graph is the HP and the scale on the right of the graph is the A/F ratio. It goes up only to 18.

The HP curve doesn't jump around or follows the A/F ratio curve because there is not a direct relation between the two values (compared to let say torque values vs hp values for exemple).

 

Exactly. If he was to maybe richen the top a little he might pick up a few hp. I would richen everything just so the car wouldn't run so hot. I had my a/f look similar to this once and my Spoon oil pan heat shield thingy burn't to a crisp.

 

gotcha....i never even realized that scale on the right was the a/f range. thanks fellas

 

for some reason it made less hp when running richer, at 0.5 richer it made 3whp less across the curve

btw.. injector size is 370..


[Modified by vtec.dc2, 8:08 PM 8/21/2002]