Fastest 1/4 Mile Times.. Shift Paddles or Not? Ect Power Mode TOO??
#31
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So it's a case of Lexus handicapping the engine so that it can't reach maximum thrust? Any idea, if over 7k, where the sweet spot would be?
#32
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Lexus picked the RPM they did for rev limit based on reliability, not performance.
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#34
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For example, when in pwr mode and non-WOT driving, the transmission holds gears longer, downshifts quicker, and usually downshifts two gears instead of one under moderate acceleration.
#37
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16.042 @ 86.88mph
16.027 @ 86.03mph
16.132 @ 85.44mph
16.042 @ 85.90mph
Not too bad for a stock AWD car but the 16.1x was my slowest time as I tried the "sport" mode just out of curiosity. So, I lost about one tenth in the ET.
Regards,
#41
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paddles are good for downshifting, on the hwy specially, so u dont use ur brakes as hard.
also to hold a gear. or for those who go to mexico/canada and street race: u can hold a gear when racing from a roll.
also to hold a gear. or for those who go to mexico/canada and street race: u can hold a gear when racing from a roll.
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You leave it in D because it gives you a few more rpm's in each gear before shifting. Combfilter suspected this when he went to the track and Gernby verified this information. I've been leaving it in D ever since and it works perfectly.
Here is the link to Gernby's verification.
https://www.clublexus.com/forums/sho...6&postcount=38
Here is the link to Gernby's verification.
https://www.clublexus.com/forums/sho...6&postcount=38
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I understand Gernby's chart (great chart, BTW), but I don't understand why Lexus would program PWR mode to shift at a lower rpm than NORMAL mode.
![Uhh...](https://www.clublexus.com/forums/images/smilies/1387914497.gif)
Aside from holding lower gears at partial throttle, quicker shifting, better throttle response...whatever else PWR mode does to aid performance - why would it not be programmed to provide the highest shift point as well?
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#43
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I believe ECT-PWR is driven more by marketing than performance. I think they just want to make the power curve FEEL more powerfull, not actually perform better. Basically, I believe they set the shift point so that it would shift before power started dropping off too much, even though you would really want to take it ALL THE WAY to the rev limiter for the best 1/4 mile time.
#44
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PWR mode will be quicker at partial throttle than normal mode. Thats all it is for...it should really be called sport mode...the three modes are essentially transmission tunes, and don't change the engine tune any....snow mode locks the torque converter early to eliminate the torque flash of the converter...and pwr allows the converter to flash a little higher...all with different shift points as well...
That's what I seem to gather from my experience...
That's what I seem to gather from my experience...