F80 M3 record 1/4 mile 11.18 @ 125mph

[FC4]

Originally Posted by CanAutM3

Think about 0.2s for every shift on time to speed, so about 0.6sec for the 3 shifts. While the 6MT decelerates slightly for those 0.2 seconds, the DCT keeps accelerating. No one can beat that.

0.2 seconds per shift? Do you really think that a shift at 110 MPH will immediately give the DCT car a 32 foot jump? LOL, sure...that sounds about right.

You fail to take into consideration that the 6MT will accelerate harder in-gear.

[pikkagtr]

how much E85 mix and im assuming map 7?

[CanAutM3]

Originally Posted by FC4

0.2 seconds per shift? Do you really think that a shift at 110 MPH will immediately give the DCT car a 32 foot jump? LOL, sure...that sounds about right.

You fail to take into consideration that the 6MT will accelerate harder in-gear.

Read my post carefully. I wrote that it's a 0.2 second advantage in time to speed, not time to distance. The 6MT car does not stop moving for 0.2 seconds...

And I have highlighted this many times myself, 6MT suffers less loss and weighs less giving it an advantage between gear changes.

See my long rant about the F8X DCT in this thread

But the ~0.2 second period on every shift where the DCT keeps on accelerating while the 6MT decelerates remains a real advantage nonetheless .

[buildbright]

Originally Posted by FC4

0.2 seconds per shift? Do you really think that a shift at 110 MPH will immediately give the DCT car a 32 foot jump? LOL, sure...that sounds about right.

You fail to take into consideration that the 6MT will accelerate harder in-gear.

The DCTs advantage is constant boost under acceleration among other things.

[CSanto]

DCT = Faster and Extremely Boring (DCT VS MT every Thread!)

Back on topic. Awesome Run, awesome time. wow an M3 in the 10s that's going to be awesome.

[V1.47fan]

Like an FBO N54, it seems like those inline 6 twin turbo cars at full weight, all they're capable of are low 11's.

[Mrbig]

What size tire ?

[GGreek5]

Originally Posted by V1.47fan

Like an FBO N54, it seems like those inline 6 twin turbo cars at full weight, all they're capable of are low 11's.

Shiv? Lol

[okusa]

Originally Posted by CanAutM3

The 6MT car does not stop moving for 0.2 seconds....

[Bowser330]

Stock C7 ZO6 A8 consistently hitting 1.6's and 10's!

Best time 10.8 @ 127.62mph (1.677 60ft)

How the hell is that zo6 hitting 1.6's so consistently? is the launch control better programmed? Tires?


OP, If you can get your 1.929 60ft down to 1.75 you're there! (10.9)

[Blksnowflake]

Originally Posted by M Car Chris

Does these drag stats give an approx. 0-60mph time or is it possible to extrapolate? I'm keen to see if anyone is achieving/beating the official rating 0-100km/h=0-62mph=4.1s with 0-60mph=3.9.

Originally Posted by MalibuBimmer

What's the real 0-60 time for the M4? BMW says 3.9 seconds, but BMW is usually a few tenths off for insurance purposes.

I've only got 200 miles on my M4 now, so I can't check for myself. But even now it feels quicker than my i8.

Can't remember which mag did it, but they got a DCT to 3.8 sec 0-60, no launch control. I'll try and dig up the link.

[CanAutM3]

Originally Posted by Blksnowflake

Can't remember which mag did it, but they got a DCT to 3.8 sec 0-60, no launch control. I'll try and dig up the link.

Car and Driver did a 3.8, but I believe they used LC though.

http://www.caranddriver.com/bmw/m3

[gtrsam]

op wasn't using launch control if you read. I'm sure if he got his lc working he would be around 1.6 with those drags

[MaynardZed]

Originally Posted by Bowser330

How the hell is that zo6 hitting 1.6's so consistently? is the launch control better programmed? Tires?

Yes, comes stock with much wider and stickier tires for one thing.

[Gearhead999s]

Originally Posted by gtrsam

op wasn't using launch control if you read. I'm sure if he got his lc working he would be around 1.6 with those drags

Its a chic driving by the way

[CanAutM3]

Originally Posted by Bowser330

How the hell is that zo6 hitting 1.6's so consistently? is the launch control better programmed? Tires?

Z06 comes stock with Michelin Pilot Sport Cup 2 (an R-Compound)

[Bowser330]

I reread the original post it says the op was on Mickey Thompson ET street tires, aren't those a drag radial? 1.9 on drag radials? Maybe he needs to apply some boost reduction in lower gears....

[Gearhead999s]

Originally Posted by CanAutM3

Z06 comes stock with Michelin Pilot Sport Cup 2 (an R-Compound)

Nope not an R compound as they have a 180 wear rating.The old sport Cups were 80 wear rating.Very different tires that I would like to try on the M4.

[CanAutM3]

Originally Posted by Gearhead999s

Nope not an R compound as they have a 180 wear rating.The old sport Cups were 80 wear rating.Very different tires that I would like to try on the M4.

I guess it depends on how one defines what an R compound tire is.

For me, an R compound tire is a tire that has been primarily designed for track duty while remaining DOT street legal. The PSC2 fits that bill perfectly, from the Michelin website:

"Track day after track day, make the most of your sports car."

I know that some racing series, in an effort to limit it to "true" street tires, have put a thread wear limit. But that remains a very arbitrary definition of what an R compound tire is.

My understanding is that thread wear is also dependent on thread depth, the PSC2 (7.2/32") have more thread depth the original PSC (5~6/32") and have a more modern compound. As a comparison, the PSS has a better thread wear rating (300) than the PS2 (220), yet we all know that the PSS outperforms the PS2 in handling and grip.

[Gearhead999s]

Originally Posted by CanAutM3

I guess it depends on how one defines what an R compound tire is.

For me, an R compound tire is a tire that has been primarily designed for track duty while remaining DOT street legal. The PSC2 fits that bill perfectly, from the Michelin website:

"Track day after track day, make the most of your sports car."

I know that some racing series, in an effort to limit it to "true" street tires, have put a thread wear limit. But that remains a very arbitrary definition of what an R compound tire is.

My understanding is that thread wear is also dependent on thread depth, the PSC2 (7.2/32") have more thread depth the original PSC (5~6/32") and have a more modern compound. As a comparison, the PSS has a better thread wear rating than the PS2, yet we all know that the PSS outperforms the PS2.

An R Compound tire in my vernacular is anything with a wear rating of 140 or less as defined in our Ontario CASC Time Attack rule book However the PSC2 is designed to be a very good track tire from the getgo!:

[gtrsam]

either way she wasn't launching so doesn't really matter if they were r compounds or not. No way you would see good 60 foots without a proper launch.

[Bowser330]

Originally Posted by gtrsam

either way she wasn't launching so doesn't really matter if they were r compounds or not. No way you would see good 60 foots without a proper launch.

You're right it doesn't appear she is using the launch control in the zo6 it just grips and goes!

Don't think cars weigh nearly the same, both front engine rwd. Is it the torque delivery? Too much torque too low causing tires to slip rather than grab?