It absolutely makes a difference.... now how the magic bits get blitted... that's another story


(and yes, I know the reference is incorrect).

 

Glad you're seeing the same. I'll try to take a look tomorrow at the Options bit to verify your interpretation. BTW, did you see that the two TPS ADC values that I mentioned are opposites? It must be one sensor and reading both sides of the resistor. Only one of the APP ADC values I mentioned was correct. The other sat at 5 V the entire time.

 

What kind of a difference do you feel?

 

yeah TP_SENSOR_SUB = 1023 - TP_SENSOR_MAIN (by ADC_Read not math :P)

HOWEVER the the APP_SUB on my car reads 1023 always... (this is with RPM=0)

edit - re-read your last line - yup - confirmed that

 

As I posted in another thread, we made the table less of a small mountain:



and more like a throttle cable:



It makes taking off from a red light significantly easier (I have an ACT 6 puck sprung clutch, so it's an on/off switch on it's own), requiring much less agility with a twitchy gas pedal. It also makes tooling around a parking lot easier because there is more pedal position to work with at lower RPMs.

Now, it's not all perfect (yet) as I'm noticing some off throttle jerkiness (basically be on the throttle lightly, like to maintain speed in traffic, then let off the throttle (someone made a move ahead of me), then back on the throttle, I feel some herky jerky in the car. I've not logged it yet to see what's going on. I also have the AMS "race" front motor mount, so anything the motor does I feel it in my fillings.

Edit: At the autocross this weekend, it was MUCH easier to maintain the speed I wanted during slaloms because the car wasn't lurching anytime I touched the pedal. I also made a lot of suspension changes, so I can't contribute it all to the throttle pedal, but it was one less variable to deal with.

 

Thanks for looking into this guys... I've been looking at these tables for a while but due to differences in how the various tuning products label the X axis (or Y in the case of Cobb) I've not been able to sort out what they are for.

 

ok...

can the guys that have changed their throttle maps - please go out and log the MAX TPS they see?

I have done HEAPS (too much :P) looking into these routines and am coming to the conclusion (not 100%) that the max X-Axis input is about 420 or so

So I want to see what the MAX TPS you are getting now that you have smoothed the map (past 420)

 

If this helps, when you take out the i/c hose and fully depress the throttle (value in logger 86-87) the butterfly is almost at 90d angle.

 

as in fully open?

 

Correct

 

Good to know Thanks!

So really the logged parameters unit is degrees rather than percent?

 

I think that's correct. What's also interesting is that we've logged the "rev hang" "feature" and even though we're completely off the gas, the throttle body is still open.

 

Haven't thought of that.Maybe it is,cannot confirm.

 

yeah I suspect thats part of the smoothing/emmision control

 

apparently there is a blitz throttle controller for the X and it adjusts the speed at which the throttle valve opens. Is that what the other map could be for? Extreme mode on the blitz opens the valve 4x faster than economy mode.

http://www.nengun.com/blitz/throttle-controller