Quote:
Originally Posted by Shan2nu Coz as far as i know, performance cannot be gauged by feel. Even i feel my car performs much better when it's been ripped for a while, so whos to say whos right? |
I am sorry to say this but they have test drivers for a reason, secondly I am one myself, backing with number is a good thing but there is nothing like the feel while you drive, and being a pro-dyno technician I can also tell you that the dyno does not provide all real world conditions and its still a machine. Also claims of any front wheel drive car doing & secs is still some thing to see, the fastest FWD car is a 9.5XX. And dude claims of 7 secs on little engines is a little to much. Quote:
Originally Posted by Shan2nu PS : Theres one point you haven't answered yet. Which "base map" will the two OHCs use on the 4th run?
Shan2nu |
Please read my post again, I have said when the ecu see the same conditions in consistincy over 2 drive cycles. Which means that the parameters have to match in exact voltage and amprege for the ecu to adapt the change and then it moves the values from the short-term fuel trim to the long-term fuel trim. Then based on the values in the long-term the ecu will againg make changes in the short-term. But these are still generic conditions each manufacturer has there way of running.
To begin with please porvide me with the answers to these conditions:
1. Is the car being driven by the same person?
2. Under the same real world conditions at the same time?
And a generalized both the OHC's will run different base maps as
1. OHC1 will be calculating fuel trims based on the previously stored data in it.
2. OHC2 will be calculating fuel trims from the manufacture base trims to begin with.
3. OHC2 will have a performance edge over OHC1 as its base maps, now to begin with see harder acc and higher timing curves. As thats what you have asked the adaptive system to add in.
To really prove this point you will have to ride a Automatic as it is more consistant in shifts as controlled by a computer. Yes Indian cars too have Adaptive learn. Well try RE-SETTING your ecu and consistantly driving you OHC in its ideal power-band zone for about 10 kms, then drive for about a day or two, then RE-SET the ecu again and drive the car in every gear without crossing 2500rpm on the tach for about the same distance, then try flooring the pedal to the floor and feel the accleation you get. Then see the difference in the way the car behaves.
Last edited by memo45_m : 15th July 2008 at 00:43.
|