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      06-18-2018, 04:13 PM   #23
Oxymoron
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Are you running right to redline in 2nd as well? If you shift slightly early you won't reach 60 until 3rd gear.
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      06-18-2018, 04:43 PM   #24
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Quote:
Originally Posted by Oxymoron View Post
Are you running right to redline in 2nd as well? If you shift slightly early you won't reach 60 until 3rd gear.
Yes, only one shift, 2nd is long enough, and a second shift would allow things down a hell of a lot.

You can see the log of my 5.12s run earlier in the thread, the gear change there is obvious.

My feeling right now is that if the following is possible, 4.3 might be achievable:
  • Decent 93 octane fuel
  • Grippy surface and tyres
  • Perfectly timed launch
  • Perfect revs before launch
  • No lift shift from 1st to 2nd
  • One foot run out
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      06-18-2018, 04:56 PM   #25
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I may not have a manual, but stock DCT my best is 4.1 , i stuck it into launch and lowered the revs a little to limit the wheel spin. i think on a really good day i could hit 4 maybe 3.9 but that's a long shot.
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      06-18-2018, 06:19 PM   #26
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Learn something new everyday! Up until now I assumed "bringing a dragy in your car" always involved the backseat, but discovered today it can also be something that can sit on your front seat (and be totally legal).
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      08-18-2018, 10:33 AM   #27
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My son got me Dragy for my b'day (great device!) and we went out to try it again yesterday, after trying it several times a few days ago.

I managed a 4.92 0-60 in my '18 DCT M2. There was wheel spin, and the car did fishtail right at the start, so I'm sure we can do better, but that's a long way off from the 4.1 seconds that magazine's report!

Hey... launch control was a BLAST, and I'm not racing anyone for pink slips at the stoplight, but I still wonder how it can be so far off from what BMW and reviewers have reported!

We tried to do a 2nd launch control, but the M2 wouldn't let us... I had forgotten that you need to drive something like 3, 4 miles after using Launch Control, before you can use it again. By the time we could have used LC again, we weren't in an area where it was safe.

Any of you have dragy and care to share your 0-60 times?

I'll have to try it using different RPS's at launch, and see if perhaps a slower RPM will eliminate wheel spin/sliding, and produce better times...
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      08-18-2018, 10:52 AM   #28
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Quote:
Originally Posted by akkando View Post
if it's cbrash he has DCT.


I think he mentioned in a youtube video that the tune made launching the car 0-60 not really any faster because of traction. He did a comparison with a stock M235i.
the guy didnt even do an apples to apples comparison

when he was in m2, hes using sequential mode, and in the 235i hes on auto mode
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      08-19-2018, 12:15 PM   #29
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This is the 0-100kph(0-62mph) time what I got a few weeks back.

0-60mph would be 3.9ish.

Ambient Temp was about 100F. It's really all about traction.
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      08-19-2018, 04:09 PM   #30
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Quote:
Originally Posted by GreatWhiteM2 View Post
My stock DCT LCI 4.2sec up hill.
Mind if I ask, what RPM's did you dial in, before launch?
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      08-20-2018, 05:43 AM   #31
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3.9 to 100kmh in my DCT with Stage 2 Flash tune. Used Launch Control with revs knocked down 2 clicks. I reckon with a bit more fiddling with the launch RPM I could knock .1 off that easily.
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      08-20-2018, 06:22 AM   #32
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I've only done launch control a few times but I remember getting 4.3-4.4 on a standard road with contis (3k rpm). I reckon with better tyres and some heat in the tyres it could easily do low 4s
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      08-20-2018, 04:41 PM   #33
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Quote:
Originally Posted by GreatWhiteM2 View Post
My stock DCT LCI 4.2sec up hill.
That is great! I haven't come close to that time!

Managed to get 4.59 today, dropping the RPM's down to 3000 before launch.

A few days ago, I was at 4.96 (I think), after using launch control and not dropping the RPM's down at all. Car fishtailed pretty badly at the start, so I'm sure that cost me some time (although it was more fun!).

Have to try lowering the RPM's down even more, and see if I can do better. I'm on Contis.....

Dragy is a blast!

Surprised it doesn't get more attention, esp. considering it's reasonable price tag! Very few M2's listed...

What's really nice about Dragy is, you can click on any car listed, and you'll see a list of mods the owner has done, along with what tires their car is on. So, if you're considering a mod, you can see the top times, and see if anyone has the mod you're considering and how their car performs with that mod.
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      08-20-2018, 04:43 PM   #34
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This discussion is all very nice, and please don't misunderstand my comment when I say this because I'd hate for the discussions to stop...

Where are the results from manual owners? All of these DCT results are fun to see, but HTF do we achieve 4.4s in stock with a manual? Has anyone achieved that yet?
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      08-20-2018, 04:44 PM   #35
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Quote:
Originally Posted by ShelJW View Post
Managed to get 4.59 today, dropping the RPM's down to 3000 before launch.

A few days ago, I was at 4.96 (I think), after using launch control and not dropping the RPM's down at all. Car fishtailed pretty badly at the start, so I'm sure that cost me some time (although it was more fun!).

Have to try lowering the RPM's down even more, and see if I can do better. I'm on Contis.....
You might be suffering a bit because of our crappy fuel. Maybe try some race gas to see if you get better numbers.
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      08-20-2018, 06:42 PM   #36
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Quote:
Originally Posted by GoneIn4Secs View Post
the guy didnt even do an apples to apples comparison

when he was in m2, hes using sequential mode, and in the 235i hes on auto mode
It shouldn't matter much, because with the DCT the upshifts happen automatically at redline assuming you properly engaged launch control.

At the very least I know 1-2 is automatic, but I think it does them all automatic until you lift throttle when you started with LC.
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      08-20-2018, 08:33 PM   #37
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Quote:
Originally Posted by ZPrime View Post
It shouldn't matter much, because with the DCT the upshifts happen automatically at redline assuming you properly engaged launch control.

At the very least I know 1-2 is automatic, but I think it does them all automatic until you lift throttle when you started with LC.
He didnt do launch ctrl, he was clicking
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      08-26-2018, 04:40 AM   #38
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What are people getting 100-200 tuned? Mine is stage 2 BM3 intercooler, exhaust, decat and it ranges between 8.8 - 9.1. Is that any good?
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      09-16-2019, 07:34 AM   #39
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Managed a 4.3 in my manual, running around 440hp upgrade as a Dragy verified uphill 0.85 degree, but also a 4.13 but downslope just out of tolerence ? Set off in 2nd......Car getting 550 in around 4 weeks but will upgrade to a paddle clutch as well so will post on Dragy BMW when done......The Ferret on BMW leaderboard.
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      05-21-2020, 12:18 PM   #40
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Having the same issue as OP 2017 M2 manual with VF stage 2, Fabspeed sport cat, upgraded inter cooler and charge pipe and nowhere near stock 0-60.
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      05-21-2020, 12:23 PM   #41
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I mean, the car hauls ass period.

If Don Garlits was driving it yeah, probably get the 4.2 or something - otherwise, I don't worry about it and mine's a 6speed.
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      05-21-2020, 12:48 PM   #42
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Quote:
Originally Posted by Nezil View Post
Nothing special really. Something along the lines of:

Clutch in, hold revs at around 2,500
Clutch out reasonably fast, not much slip (of the clutch) and floor the accelerator as soon as it's fully out
Keep it floored to red-line in first
Regular gear change (off gas, clutch in, shift, clutch out, on gas) as quick as I can
I don't have a dragy, but my butt dyno has always told me that when I pretty much mash the throttle as soon as I hit the bite point (basically I move both feet at the same time) and control wheel spin via clutch engagement, I get the best times. Obviously this isn't very nice on the clutch if done too often, but it spools the turbos a lot faster.
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      05-21-2020, 01:24 PM   #43
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Quote:
Originally Posted by emargul View Post
Having the same issue as OP 2017 M2 manual with VF stage 2, Fabspeed sport cat, upgraded inter cooler and charge pipe and nowhere near stock 0-60.
What you, and everyone, should be looking at is the time with the "1 foot rollout." That's what magazines and manufacturers use for their times. You're looking at over 0.30 seconds faster with the 1 foot rollout (5.21 vs 4.90). With perfect conditions and a prepped surface, you could get that down even more. The rollout is particularly helpful for manual cars.
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      05-21-2020, 03:13 PM   #44
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Definitely a good point about the one foot roll out. It's nice that dragy provides that as well. Did another run today and got it a little bit lower. Dumped the clutch a little higher at 3k rpm. For the previous run I dumped it at 2.5k.
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