Better acceleration with foot not to the floor?

[Powerslave]

maybe becuase boost spike?

 

[nig3]

no its because of part throttle full boost, basically at half throttle the car can load up to max boost but not run enough fuel making it run leaner than normal for a second or so. as long as your not knocking or leaning out too much its ok though.

 

[ericrapp]

Is it just my car, just my imagination, or does anybody else sometimes feel like they get better acceleration with the pedal not quite to the floor?
I'll pull out onto a main road on the way home sometimes and I don't want to spin the tires so I don't quite floor it and the car takes off like a rocket.
The traction control light comes on, I can feel the car pulling hard to one side, and altogether it feels like it is making noticeably more power than when I just floor it. Doesn't happen all the time, but enough that I am wondering what could be going on.

i know, dumb question, is dsc switched off? wheelspin creates ecu intervention and nobody likes that

 

[CX-7owner]

when you do WOT with the wheel slightly turned (like making a right hand turn) DSC will automatically limit torque because it knows you will spin the inner wheel.

 

[KZL_99ES]

I dunno guys, my car isn't turbo and I can feel the same thing...interesting...

 

[Jays07MS3]

My theory is its that stupid drive by wire setup. I'd have to make a few datalogs to be sure but if feels that if you mash it, the ECU closes the throttle plate more in the low gears than if you work into the throttle. I hate it to be honest. I miss the raw feeling my Eclipse had when I mashed the gas. I want full throttle control dammit Where's the Cobb AP!!?!?!?!

 

[Micaspd6]

We have experienced this and I have with my own cars N/A and FI. The cause to me anyways is the air speed across a partially opened TB and the slow air flow through a WOT. I feel that the flow characteristics are better when the intake speed is greater (just as it is with exhaust, too big is slow N/A anyways) and this makes more power off boost and transitioning into boost.
If the throttle is wide open and the air flow is slow the ECU will make due with that, but when all of the sudden the boost comes up it gets confused for a split second causing the bogging sensation. I have always been able to out drag stronger cars by pedaling this way while they are bogging or spinning the tires off the line. Don't know if I'm correct or not but we dyno about 75 Vipers a year and I can prove on the dyno that you make more power early on doing this.
Either way this is what I do. (uhm)

 

[freebird_78]

I've actually noticed this on every Mazda I've owned and two of my Hondas.
If you "work" the throttle to about 90%, the car feels like its jumping out of its skin, but if you mash it that extra 90%, it actually feels like its slowing down.
On a turbo car I can understand it, but on a stock, N/A car it makes no sense to me.
I have theories, but no real data.

Its not a traction issue - its actually the sensation of less power. My datalogs on my '8 when it was new show nothing, but the feeling was definitely there.

Wow, you really are a Mazda "Maniac", you're here too.

One thing I did notice that's very different from my old 8 (besides the obvious) is that the Speed3's throttle actually DOES something when pushed more than 1/2 way. In the 8, as I gradually began to experiment with full throttle, I began to notice that anything above 1/2 throttle was basically pointless. It was like 50% throttle = 90% power, almost an exponetial curve. I became so accustom to driving like that, I rarely ever applied more than 50% throttle position, because there was no point. When I got the Speed3, I carried that over. One day in the Speed3, more by accident than anything, I did apply more than 50%. Boy was I surprised. In this car, 50% throttle position is more like 60% power. Much more linear.

Please don't misread and say that I think that a turbo motor is more linear than a rotary. That is NOT the case. The power delivery of a rotary is basically defined as being linear, while a turbo motor is FAR from linear in its power delivery. But when it comes to power output vs throttle position, the Speed3 is more linear.

 

[RajputSmurf]

In the head

I think its in our heads, i know what your feeling also, most cars Ive ever owned have this feeling, next time your on the highway, set your cruise at around say 50 in 4th and press the accel button, feels damn fast huh, now feel how hard its actually pressing the gas down, barley at all. I think its just a sense thing, never proved or disproved just something I think. Only real way to prove it would be a pain to do part throttle runs vs full throttle runs, I'm betting full wins every time, unless something is wrong with the car, which as we all feel it isn't the case.
Just my 2 cents.
Tom

I think this is on the right track. Try just sitting on the couch and lightly pushing your foot against something. Feel the pressure on your butt and back? That same pressure offsets some of the accelerative force you normally feel from the engine so when you're at 90% you're applying less force of your own pushing yourself back in your seat so it feels like the car is doing more. When you really mash it, you're really pushing yourself back in the seat and damping the feel of the engine. Complete SWAG but seems logical.(shrug)