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      07-22-2018, 08:51 AM   #1
HammerDahn
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M2 vs 991.2 GT3 PDK (from a dig)

So I was on my way home from my bday dinner in "Mexico" with a lady friend last night when I spot a brand new 991.2 GT3 (silver with light silver wheels on temporary tags) at a light opposite from me, we were both pulling onto a big 4 lane, I get on the 4 lane 1st and see him about 1/8th mile back coming up fast then pulls up next to me at a light, he looks over, says "nice car! next three lights?" He was a younger fellow with a younger woman. You could tell he was ready to show her what his new toy could do to this boy racer blue bmw. I just smiled and looked ahead. I've never launched my car from dig, and wasn't expecting a 991.2 gt3 owner wanting to race from a dig

A few seconds later the light turns green, I get a good launch and hear his motor screaming next to me (sounded insane) but I don't see him. I think he was trying to put it in launch control as the light turned green He never made it past my rear quarter panel.

The next light he gets a better launch and now I'm right at his rear quarter until his short shifts into 3rd from that point I was ahead by a car or two.

We pull up to the next light behind a few cars, he didn't seem very happy I ask him "PDK?" he says "yea" I say "cheater! mines a 6spd!"

My car has a fabspeed downpipe and Dinan sport tuner set to "race +4psi over stock".

These cars are deceptively fast in the real world. It reminded me of Clarksons review when he came across a 911 GTS and Aston martin.

https://www.driving.co.uk/car-review...w-2016-bmw-m2/

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Later I was overtaken by a Porsche 911 GTS that was travelling at about a million. And then, before I’d had a chance to think, “Golly, that was quick”, my world was rocked by an Aston Martin DB9 that tore by at a million and one. It’s been a while since I’ve seen two cars really going for it on the public highway. It’s a hobby I thought had been killed off by speed cameras. But plainly, up there in the flatlands of eastern England, there’s nothing else to do once the turnips are planted, so the locals are still at it.

I didn’t join in. Well, not much. But, coming off one roundabout, I may have put my foot down a bit, into the overboost zone of the M2’s turbocharged torque lake, and there’s no getting round the fact that it was faster than both of the way more expensive GT cars.

At first I thought the M2 simply felt fast because from behind the wheel it’s as if you’re in a low-rent hatchback. So you’re not expecting much of a shove in the back. But, actually, it’s fast no matter what yardstick you use. Round the Hockenheim racetrack in Germany it’s faster, apparently, than its bigger brothers.
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      07-22-2018, 07:39 PM   #2
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That GT3 must be one of the knock offs from AliExpress.
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      07-22-2018, 08:39 PM   #3
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Then you woke up from that dream....
The car is a full second faster to sixty. You wouldn't have a chance even if the guy wasn't trying.
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      07-22-2018, 09:40 PM   #4
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Maybe he modded it to look like a 991.2 but it was... a carerra?
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      07-23-2018, 03:06 PM   #5
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Quote:
Originally Posted by ryem3 View Post
Then you woke up from that dream....
The car is a full second faster to sixty. You wouldn't have a chance even if the guy wasn't trying.
In perfect conditions with perfect driving. They make 339ftlb of torque at 6krpms vs a modded m2 makes over 400 at 2krpm. I've driven one myself, they're dont make much power under 6krpm...
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      07-23-2018, 03:16 PM   #6
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Quote:
Originally Posted by warrenw View Post
Maybe he modded it to look like a 991.2 but it was... a carerra?
No it was a real GT3.
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      07-23-2018, 07:14 PM   #7
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Sorry Hammer. Something wasn't right. I've driven 911.1 gt3 a few times. A tuned m2 surely has more torque than gt3, but they're still not in the same class, by any stretch of imagination. The gt3 is way way waaaaay faster.
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      07-23-2018, 09:26 PM   #8
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Quote:
Originally Posted by HammerDahn View Post
In perfect conditions with perfect driving. They make 339ftlb of torque at 6krpms vs a modded m2 makes over 400 at 2krpm. I've driven one myself, they're dont make much power under 6krpm...
You need to multiply torque by gear ratio when comparing actual force put down to ground.

And traction.

And weight, when converted to acceleration rate.

M2 is a nimble eager going car for sure, and your piggyback and downpipe amplify that feeling. But in a WOT state, it's weak, very weak.

That GT3 need driver modification, is all.
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      07-24-2018, 01:56 AM   #9
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I guess the takeaway is that the GT3 in the real world, despite being fast, cannot makeup for a less than competent driver!
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      07-24-2018, 04:32 PM   #10
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Short shifts into 3rd? Screws up launch? It seems pretty obvious that this guy couldn't drive the GT3 for shit. Get a halfway competent driver and he jogs away from you, especially from a dig.
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      07-24-2018, 08:56 PM   #11
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Quote:
Originally Posted by Stage IV View Post
Short shifts into 3rd? Screws up launch? It seems pretty obvious that this guy couldn't drive the GT3 for shit. Get a halfway competent driver and he jogs away from you, especially from a dig.
Really hard to fuck it up. You put the gt3 in automatic. Traction control in the BMW is no comparison to the Porsche and obviously the latest gt3 has greatly improved traction control.
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      07-25-2018, 09:28 AM   #12
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I mean unless he was shifting at 4K rpms, I don’t see how the m2 could remotely keep up. The gt3 is worlds apart from the m2 in virtually every measurable performance measurement. By the quarter mile you are almost 2 seconds apart. It just doesn’t make sense. A downpipe and a boost controller won’t make up that difference.
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      07-25-2018, 02:11 PM   #13
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Quote:
Originally Posted by Stage IV View Post
Short shifts into 3rd? Screws up launch? It seems pretty obvious that this guy couldn't drive the GT3 for shit. Get a halfway competent driver and he jogs away from you, especially from a dig.
Agreed he should have walked me but ohwell
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      07-25-2018, 02:13 PM   #14
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Quote:
Originally Posted by ryem3 View Post
Really hard to fuck it up. You put the gt3 in automatic. Traction control in the BMW is no comparison to the Porsche and obviously the latest gt3 has greatly improved traction control.
Goes to show the driver still matters
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      07-25-2018, 02:14 PM   #15
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Quote:
Originally Posted by pz619 View Post
I mean unless he was shifting at 4K rpms, I don’t see how the m2 could remotely keep up. The gt3 is worlds apart from the m2 in virtually every measurable performance measurement. By the quarter mile you are almost 2 seconds apart. It just doesn’t make sense. A downpipe and a boost controller won’t make up that difference.
It's easy to talk about what car should win over the internet but in the real world you want lots of torque in the low rpms for drag racing.
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      07-25-2018, 02:18 PM   #16
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Quote:
Originally Posted by bi0hazard View Post
Sorry Hammer. Something wasn't right. I've driven 911.1 gt3 a few times. A tuned m2 surely has more torque than gt3, but they're still not in the same class, by any stretch of imagination. The gt3 is way way waaaaay faster.
I never said they were in the same class

It was obviously driver error. You also have to figure we were probably "racing" for about an 1/8th of a mile.
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      07-25-2018, 02:19 PM   #17
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Quote:
Originally Posted by SeanWRT View Post
You need to multiply torque by gear ratio when comparing actual force put down to ground.

And traction.

And weight, when converted to acceleration rate.

M2 is a nimble eager going car for sure, and your piggyback and downpipe amplify that feeling. But in a WOT state, it's weak, very weak.

That GT3 need driver modification, is all.
Agreed the GT3 needs a perfect launch to post its number given its fairly low torque output
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      07-25-2018, 02:20 PM   #18
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Quote:
Originally Posted by GreatWhiteM2 View Post
PDK 991.2 GT3

0–60 mph 3.2secs
100-200 km/h 7.6secs
1/4mile 11 or 11.1secs

The above is all you need to know, it kills an M2 on stock turbo and fuel.

My Stage2+ Litchfield FBO M2

0-60mph 4.1secs
100-200kph 8.67secs

On paper specs don't matter nearly as much in the real world
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      07-25-2018, 03:23 PM   #19
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Quote:
Originally Posted by HammerDahn View Post
It's easy to talk about what car should win over the internet but in the real world you want lots of torque in the low rpms for drag racing.
Your story is unbelievable, as in I literally don't believe it. This isn't about internet racing, all you have to do is look at instrumented testing to realize this doesn't add up. You are not overcoming the numbers below, regardless of torque output. Perfect launch doesn't even matter here. Look at the rolling start numbers. It's not close and if the guy was trying, he's probably ahead of you not by a car length, but a battleship length.

GT3 PDK
C/D TEST RESULTS:
Zero to 60 mph: 3.0 sec
Zero to 100 mph: 6.9 sec
Zero to 130 mph: 11.6 sec
Zero to 150 mph: 16.3 sec
Zero to 170 mph: 24.3 sec
Rolling start, 5-60 mph: 3.9 sec
Standing ¼-mile: 11.1 sec @ 127 mph
Top speed (drag limited, mfr's claim): 197 mph
Braking, 70-0 mph: 146 ft
Roadholding, 300-ft-dia skidpad: 1.11 g

M2 6MT
C/D TEST RESULTS:
Zero to 60 mph: 4.2 sec
Zero to 100 mph: 10.0 sec
Zero to 120 mph: 14.5 sec
Zero to 150 mph: 27.0 sec
Rolling start, 5-60 mph: 4.7 sec
Top gear, 30-50 mph: 5.7 sec
Top gear, 50-70 mph: 4.7 sec
Standing ¼-mile: 12.7 sec @ 113 mph
Top speed (governor limited): 164 mph
Braking, 70-0 mph: 159 ft
Roadholding, 300-ft-dia skidpad: 0.99 g
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      07-25-2018, 04:10 PM   #20
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Quote:
Originally Posted by pz619 View Post
Your story is unbelievable, as in I literally don't believe it. This isn't about internet racing, all you have to do is look at instrumented testing to realize this doesn't add up. You are not overcoming the numbers below, regardless of torque output. Perfect launch doesn't even matter here. Look at the rolling start numbers. It's not close and if the guy was trying, he's probably ahead of you not by a car length, but a battleship length.

GT3 PDK
C/D TEST RESULTS:
Zero to 60 mph: 3.0 sec
Zero to 100 mph: 6.9 sec
Zero to 130 mph: 11.6 sec
Zero to 150 mph: 16.3 sec
Zero to 170 mph: 24.3 sec
Rolling start, 5-60 mph: 3.9 sec
Standing ¼-mile: 11.1 sec @ 127 mph
Top speed (drag limited, mfr's claim): 197 mph
Braking, 70-0 mph: 146 ft
Roadholding, 300-ft-dia skidpad: 1.11 g

M2 6MT
C/D TEST RESULTS:
Zero to 60 mph: 4.2 sec
Zero to 100 mph: 10.0 sec
Zero to 120 mph: 14.5 sec
Zero to 150 mph: 27.0 sec
Rolling start, 5-60 mph: 4.7 sec
Top gear, 30-50 mph: 5.7 sec
Top gear, 50-70 mph: 4.7 sec
Standing ¼-mile: 12.7 sec @ 113 mph
Top speed (governor limited): 164 mph
Braking, 70-0 mph: 159 ft
Roadholding, 300-ft-dia skidpad: 0.99 g
"This isn't about internet racing, all you have to do is look at instrumented testing to realize this doesn't add up."

Thats the definition of internet racing hahaha....

I agree in perfect conditions and driving the GT3 would win. But this wasnt the case
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      07-25-2018, 05:42 PM   #21
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Quote:
Originally Posted by HammerDahn View Post
"This isn't about internet racing, all you have to do is look at instrumented testing to realize this doesn't add up."

Thats the definition of internet racing hahaha....

I agree in perfect conditions and driving the GT3 would win. But this wasnt the case
I fail to see how mostly objective numbers through instrumented testing is "Internet Racing" but to each their own. I've said my piece so we can leave it at that. Regardless, enjoy the car.
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      07-25-2018, 06:51 PM   #22
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I find this difficult to believe. :
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