I had 3 pulls, 1 w/ no spray, 2 with spray.

Something has to be wrong. I pulled 211/177 last year with headers only.



Today I got 208 / 175 with headers, intake and plugs.


Here are the runs with spray. The tech pointed out that I have room to add more N20 since my a/f ratio was so low. Any ideas what could be wrong? Same people, diffrent dyno jet. Maybe its the dyno?



Video of 250.4 Pull



Needless to say, I am disappointed.

 

was it SEA corrected?

 

nevermind, just looked at the dyno and saw that it was

 

why was your hp line and torque line so smooth before, and now it has spikes?

 

why is your trq/hp curve intersecting at approx 5500 RPM???? ISn't it supposed to intersect at 5200?

 

Yeah, something is messed up.

 

A guess, bad accuator?

 

yeah 5252... might from the scale they are working off of.

 

the scale for horsepower (on the left side) and torque (on the right side) aren't the same.

for the hp and torque curves to intersect graphically at 5252 rpm, they have to be plotted on the same scale (ie, 100hp is on the same line as 100 ft-lbs of torque).

 

They were having problems hooking up sensors under the hood both times. I wonder if they aren't reading something properly.

I need to try another place to see if I get the same thing.

 

the question is how big of a shot and is it an auto? im guessing it is b/c of the 211 w/headers...just so you know, I did 290hp w/ a 75 dry shot and probably 310 with the 100 dry shot...if you're looking to get the same HP as the shot, go with a wet shot...dry shots are usually off by quite a lot...oh yeah, I gained 50hp with the 75 dry shot and approximately 70 with the 100 shot...

 

yep

 

myabe your air filter is dirty?

 

needs more amsoil

 

auto, 75 wet shot

 

try reseting your ECU, it's worth a try.

 

are you on the dyno w/your 19's? also, is the guy the same person that ran the dyno the previous time you got your baseline?

 

yes, i dynoed w/ 19s.

Yes, they are the same bunch of guys, just diffrent dyno meter (they changed locations). Well I say its a diffrent dyno b/c they are at diffrent locations, i dont know if its the same one or not.

 

I was hoping for at least 280. This sucks.

 

If your a/f ratios are rich, why not up the n20 jet and redo the dyno but I'd suggest running the dyno on some stocks or some smaller lighter wheels. I'd bet the heavy 19's are robbing you of some substantial hp. I dynoed my car w/the 19" rezax then redynoed w/the stocks and picked up an extra 12hp.

 

 

yeah, the tech said to add more N20. I've got some 17" SSR Comps, just no tires. I'll give it another go around once I get tires & larger jets.

 

my guess is the acutator, but u should be right around 265-275 range

 

actuator opens @ 4100 rpm like its supposed to.

 

Welcome to my world!

 

^^^ You still havent gotten your issues resolved?

 

MY car is ok now but still need more testing. Damn do you think I can install a 30-50 shot wet NOS in my car? I need to keep up with 6spd CL.

 

3800

 

have you done a compression check, spraying too much too often?

 

I guess chod needs to update his faq then?

http://www.geocities.com/~gamesmgr/chod/acura/#Driving6

 

oh, i am pretty sure its 3800, not 100%

 

I. Also, the earlier suggestion (in this thread) about checking the air filter couldn't hurt. Have you checked it?

With intake and headers the usual high-speed torque peak *and* HP peak is *usually* around 6K RPM and your new A/F is taking a second downward dip (~11-to-1) where I would expect the most amount of air to be consumed. (Compare the older no-spray to new no-spray runs and look at the A/F curve’s down slope around 6K.) You’re really starting to dump HP/TQ with that fuel-air mix *and* theoretically speaking maximum horsepower occurs when a normally aspirated engine reaches its maximum airflow.


II. No question about the 19" wheels gobbling up HP/TQ across the whole power band.

III. My actuator opens at an RPM > 4100 RPM. (maybe my tach is off).

 

Haven't cleaned the air filter since I got it. I probably need to check on that.

 

when are you going to the track w/ the light rims?

 

Probably not till March 19th. That is the next date its open for time trials.

 

Your running way to rich. You should stay in the 11-12 area, running rich also can make you loose power.

 

so I need to add what, more N20, air, or fuel? Sorry, but I'm a n00b when it comes to a/f ratios.

 

Cut back on the fuel some, get some professional tuning. NOS isn't something to take for granted.

 

thanks for the tips.

 

dam man i need to clean my filter too