Best shift points for DCT that the track?

bigjae1976 · 06-27-2015, 09:06 PM

Your engine will thank you shifting a little sooner. Running it to redline every time will make the engine run hotter and suck more fuel.

roastbeef · 06-28-2015, 10:01 PM

i only have a few days of track experience, but i feel like this is something that you'll learn quite simply by doing it rather than reading/talking about it. i have a dct and sometimes redline comes up quick from 2-3-4. you'll lose more time bouncing off the rev limiter trying to "wring out" all the power rather than shifting slightly "early" (early being used subjectively). another factor is upsetting the balance of the car with a hard, wide open throttle shift (if you're in a turn). and if you're not wide open, might as well shift "early" and be as smooth as possible.
the only time i take it slightly above 8k is on straights when i can really watch the needle.

brownb_2 · 07-19-2015, 12:30 PM

just drive in D

WarrantyTracker · 08-03-2015, 10:15 AM

Quote:

Originally Posted by trackjunky

Look at your car's torque curve from the dyno and shift where the torque curve starts to drop off dramatically. Then verify with lap times against a baseline where you are always shifting at redline. Try it out and report back!

Torque curve. LOL. It's an E92 M3.

When I was a new driver, my second event was VIR North Course. I did an entire SESSION in 4th gear and never noticed the difference.

krx927 · 08-31-2015, 08:08 AM

Quote:

Originally Posted by Sleeper519

Unequivical NOOOO!!!

This is no playstation GT-R! Driver involvement is what makes this whole track game fun. The DCT cars already catch undeserved flack for not using our left foot (except for braking in complex corners) but hands-eyes-feet-brain, etc, all involved in the driving process. I love actively shifting at all times on the track whether its stick or paddles, controlling engine speed, correlating with steering inputs and chassis balance... Giving it over to the car computer in a (gulp) "automatic" mode is giving up a huge amount of car control. And fun.

my $0.02

1+

dparm · 09-10-2015, 01:41 AM

When I graphed the thrust curves on a stock M3 (M-DCT), it was advantageous to shift at redline in pretty much every gear.

1MOREMOD · 09-23-2015, 10:16 AM

When it won't go faster in previous gear?

sylonien · 10-10-2015, 09:36 PM

Should you wait for the DCT shift lights to go to RED or red + flash? Does it even flash? I can't remember on top my head right now.

dparm · 10-11-2015, 10:40 AM

Quote:

Originally Posted by sylonien

Should you wait for the DCT shift lights to go to RED or red + flash? Does it even flash? I can't remember on top my head right now.

Red + flash is basically just before maximum engine speed. As soon as you see it flash, grab the paddle.

sylonien · 10-12-2015, 08:44 AM

Quote:

Originally Posted by dparm

Red + flash is basically just before maximum engine speed. As soon as you see it flash, grab the paddle.

I've checked my go pro recording, and I only see the red LED light up and not flash, but I did shift at 8000, rather than 8300rpm, so would it flash then if I hit that rpm?

dparm · 10-12-2015, 06:47 PM

Quote:

Originally Posted by sylonien

I've checked my go pro recording, and I only see the red LED light up and not flash, but I did shift at 8000, rather than 8300rpm, so would it flash then if I hit that rpm?

I was just at the track today and I can confirm that right as you pass 8,000, it will flash. That's just enough time to fire off a shift before you hit the rev limiter.

sylonien · 10-13-2015, 07:28 PM

Quote:

Originally Posted by dparm

I was just at the track today and I can confirm that right as you pass 8,000, it will flash. That's just enough time to fire off a shift before you hit the rev limiter.

Thank you so much for that. I always shifted at 8000 when it goes red, so I wasn't sure if I should go any further with the revs.

SYT_Shadow · 10-15-2015, 01:46 PM

Quote:

Originally Posted by Shaung

Yeah, I've bumped it a few times. Make's me think about getting that performance steering wheel.

You want it trust me

I have a loud exhaust and still find it useful. They blink at a predetermined setting which makes it very, very consistent

M3 Number 86 · 11-01-2015, 07:17 PM

6MT needs shift lights. I do it mostly by sound but when there are full blown race cars next to you you end up bouncing because you can't hear shit from your own car haha.

Anyone know how to use arduino?

06-27-2015, 09:06 PM	#23
bigjae1976 Major General 1571 Rep 8,076 Posts Drives: 11 E90 M3 Individual Join Date: Mar 2006 Location: Houston, TX iTrader: (22) Garage List 2004 BMW M3 [4.50] 2011 BMW E90 M3 [5.25] 2013 BMW 328i [5.00]	Your engine will thank you shifting a little sooner. Running it to redline every time will make the engine run hotter and suck more fuel. __________________ 2018 F30 320iX Melbourne Red 2011 E90 M3 Monte Carlo Blue 2004 E46 M3 Imola Red 2000 E36/7 Z3 Steel Blue
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06-28-2015, 10:01 PM	#24
roastbeef Lieutenant General 11586 Rep 12,726 Posts Drives: E92 M3 Join Date: Nov 2010 Location: Orange County, CA iTrader: (4)	i only have a few days of track experience, but i feel like this is something that you'll learn quite simply by doing it rather than reading/talking about it. i have a dct and sometimes redline comes up quick from 2-3-4. you'll lose more time bouncing off the rev limiter trying to "wring out" all the power rather than shifting slightly "early" (early being used subjectively). another factor is upsetting the balance of the car with a hard, wide open throttle shift (if you're in a turn). and if you're not wide open, might as well shift "early" and be as smooth as possible. the only time i take it slightly above 8k is on straights when i can really watch the needle. __________________ Instagram; @roastbeefmike
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07-19-2015, 12:30 PM	#25
brownb_2 First Lieutenant 61 Rep 377 Posts Drives: 2016 M3 Join Date: Jun 2015 Location: Perth/Germany iTrader: (0)	just drive in D
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09-10-2015, 01:41 AM	#28
dparm Stop the hate, get a V8 3850 Rep 8,625 Posts Drives: C7 Corvette GS, AMG C63 S Join Date: Jun 2013 Location: Frisco, TX iTrader: (1)	When I graphed the thrust curves on a stock M3 (M-DCT), it was advantageous to shift at redline in pretty much every gear. __________________ Now: 2017 Corvette Grand Sport, 2021 AMG C63 S sedan Past: 2011.5 M3 sedan ZCP
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09-23-2015, 10:16 AM	#29
1MOREMOD - 11817 Rep 23,187 Posts Drives: Race car-> Join Date: Mar 2009 Location: check your mirrors iTrader: (5)	When it won't go faster in previous gear?
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10-10-2015, 09:36 PM	#30
sylonien Major 114 Rep 1,326 Posts Drives: M3 Join Date: Apr 2012 Location: UK iTrader: (0)	Should you wait for the DCT shift lights to go to RED or red + flash? Does it even flash? I can't remember on top my head right now. __________________ Please consider checking out my YouTube Channel for car and tech videos.
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11-01-2015, 07:17 PM	#36
M3 Number 86 Major General 3221 Rep 6,218 Posts Drives: black m3 Join Date: Mar 2015 Location: pasadena iTrader: (1)	6MT needs shift lights. I do it mostly by sound but when there are full blown race cars next to you you end up bouncing because you can't hear shit from your own car haha. Anyone know how to use arduino? __________________ dadmobile IG: @M3number86 youtube: track vids
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