Stage 2 Dinan M6 vs Racebike

kris1858 · 09-22-2015, 10:30 PM

As expected, the racebike wins hands down lol

Figures my first race would be with a racebike

I was WOT and the bike took me like I was standing still lol ... which it should.

M6-Coupe · 09-23-2015, 11:44 AM

Are you sure you were at right gear?

HoustonRider · 09-23-2015, 12:54 PM

Should have been a diff outcome. He took all the time in the world to downshift, you should have been gone.

But I don't have the Dinan, Im 744 crank hp, and almost 650 at the wheels.

S800vxr · 09-23-2015, 01:39 PM

Hhmmmm. Pretty sure mine would at least give him a hard time. What power is your Dimma tune giving. Mine 728 fly here in the UK.

kris1858 · 09-23-2015, 06:02 PM

Quote:

Originally Posted by M6-Coupe

Are you sure you were at right gear?

Good point, I just floored it rather than dropping a couple gears. I think I was in 7th.
Is there a big difference?

kris1858 · 09-23-2015, 06:03 PM

Quote:

Originally Posted by S800vxr

Hhmmmm. Pretty sure mine would at least give him a hard time. What power is your Dimma tune giving. Mine 728 fly here in the UK.

Not sure, I would have to dyno the car to get an accurate hp measurement.

M6-Coupe · 09-23-2015, 08:10 PM

Quote:

Originally Posted by kris1858

Good point, I just floored it rather than dropping a couple gears. I think I was in 7th.
Is there a big difference?

Oh yeah... BIG DIFFERENCE.
Let me explain it a little...
The acceleration is coming from Force and depends on mass based on the basic newton law of physic:

F= m * a ; where "m" is mass, "F" is Force and "a" is acceleration
On the other hand the Force at wheel is calculated based on Torque at crank ,gearbox ratio, differential ratio (FD ratio), wheel radius and drivetrain loss
F = T * gear ratio * FD ratio * (1 - drivetrain loss) / wheel radius.
Now more gear ratio means more torque is transferred (and more force) to the wheel. The gear ratios are shorter (larger numbers) at lower gears and that's why you have lots of wheel spinning and DSC interference at first and second gear if you floor it. In rolling stuff, for F1x M5/M6 DCT, the best gear selection is second gear @ 40-50 mph or third gear @ 60-70 mph...
re-race with that bike and select the right gear then you will smoke him

2007 to 2016 M6 Cab · 09-24-2015, 12:02 AM

Quote:

Originally Posted by M6-Coupe

Oh yeah... BIG DIFFERENCE.
Let me explain it a little...
The acceleration is coming from Force and depends on mass based on the basic newton law of physic:

F= m * a ; where "m" is mass, "F" is Force and "a" is acceleration
On the other hand the Force at wheel is calculated based on Torque at crank ,gearbox ratio, differential ratio (FD ratio), wheel radius and drivetrain loss
F = T * gear ratio * FD ratio * (1 - drivetrain loss) / wheel radius.
Now more gear ratio means more torque is transferred (and more force) to the wheel. The gear ratios are shorter (larger numbers) at lower gears and that's why you have lots of wheel spinning and DSC interference at first and second gear if you floor it. In rolling stuff, for F1x M5/M6 DCT, the best gear selection is second gear @ 40-50 mph or third gear @ 60-70 mph...
re-race with that bike and select the right gear then you will smoke him

WOW!

GREAT POINTS!

Been a while since I seen those formulas!

C5driver · 09-24-2015, 12:36 AM

Quote:

Originally Posted by kris1858

Good point, I just floored it rather than dropping a couple gears. I think I was in 7th.
Is there a big difference?

Huge...from 3-4K in 3rd, the pull is insane.

kris1858 · 09-24-2015, 11:36 AM

Quote:

Originally Posted by M6-Coupe

Oh yeah... BIG DIFFERENCE.
Let me explain it a little...
The acceleration is coming from Force and depends on mass based on the basic newton law of physic:

F= m * a ; where "m" is mass, "F" is Force and "a" is acceleration
On the other hand the Force at wheel is calculated based on Torque at crank, gearbox ratio, differential ratio (FD ratio), wheel radius and drivetrain loss...
F = T * gear ratio * FD ratio * (1 - drivetrain loss) / wheel radius.
Now more gear ratio means more torque is transferred (and more force) to the wheel. The gear ratios are shorter (larger numbers) at lower gears and that's why you have lots of wheel spinning and DSC interference at first and second gear if you floor it. In rolling stuff, for F1x M5/M6 DCT, the best gear selection is second gear @ 40-50 mph or third gear @ 60-70 mph...
re-race with that bike and select the right gear then you will smoke him

Appreciate your very descriptive insight!!

Now I just need to put this theory to the test!!

Msizzle · 10-04-2015, 08:00 PM

Quote:

Originally Posted by kris1858

Good point, I just floored it rather than dropping a couple gears. I think I was in 7th.
Is there a big difference?

Sir with due respect, you have a damn near 700hp sports car, with looks like about 15grand worth of mods and you honestly didn't know you shouldn't start a race in 7th gear??

kris1858 · 10-05-2015, 08:09 PM

Quote:

Originally Posted by Msizzle

Sir with due respect, you have a damn near 700hp sports car, with looks like about 15grand worth of mods and you honestly didn't know you shouldn't start a race in 7th gear??

Yeah, I know... I have only owned cars with automatic transmissions..

Lesson Learned!

PRican//M614 · 10-06-2015, 08:40 AM

Depends on the weather the moisture in the air. The breath ability of the engine. No I'm bullshiting. I had 3 Gsx Rs 750 a 1000 and another 1000 bc I destroyed the first one. There's not a car built that can catch me. Maybe an Indy race car.... And I'll be on a wheelie.....

Msizzle · 10-06-2015, 08:01 PM

Quote:

Originally Posted by BoloYueng//M614

Depends on the weather the moisture in the air. The breath ability of the engine. No I'm bullshiting. I had 3 Gsx Rs 750 a 1000 and another 1000 bc I destroyed the first one. There's not a car built that can catch me. Maybe an Indy race car.... And I'll be on a wheelie.....

Buddy i guess you haven't seen vids of ugr lambos or heavy hitter gtr's that drag 300whp busa's up and down the highway. 750's can get beat by lots of cars and probably some stock cars

TrevorM3 · 10-07-2015, 10:16 PM

Quote:

Originally Posted by BoloYueng//M614

Depends on the weather the moisture in the air. The breath ability of the engine. No I'm bullshiting. I had 3 Gsx Rs 750 a 1000 and another 1000 bc I destroyed the first one. There's not a car built that can catch me. Maybe an Indy race car.... And I'll be on a wheelie.....

you need to google underground racing. asap.

09-22-2015, 10:30 PM	#1
kris1858 Lieutenant 555 Rep 417 Posts Drives: '23 BMW M8 Competition Join Date: Oct 2013 Location: Aberdeen, MD iTrader: (0) Garage List 2016 BMW M6 [10.00]	Stage 2 Dinan M6 vs Racebike As expected, the racebike wins hands down lol Figures my first race would be with a racebike I was WOT and the bike took me like I was standing still lol ... which it should. __________________ Full Vorsteiner Aero Kit, ADV5.0 M.V2 CS rims, KW HAS kit, M Performance Exhaust w/ CF tips, CF Mirror Caps, CF Gear Selector Lever, CF Side Marker Gills, CF Front Grill, Dinan CF Intake, AFE CF Engine Cover, Stage II Dinan Tune, Exhaustmeister, Internal Escort 9500ci + Laser Shifters, Photosync window tint 65% windshield 35% windows, Full PPF xpel ultimate wrap, RK Autowerks noncatted DPs, reflector delete, various coding
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09-23-2015, 11:44 AM	#2
M6-Coupe Major General 1125 Rep 6,067 Posts Drives: F92 M8 Join Date: Feb 2014 Location: Bay area iTrader: (0)	Are you sure you were at right gear? __________________ Current : 2020 F92 Black Sapphire M8 - ZF8 Gone : 2018 F80 Mineral Gray M3 - 6MT Gone : 2016 F82 Austin Yellow M4 - 6MT Gone : 2013 F13 Sakhir Orange M6 -7DCT Gone: 2013 F13 Alpine White 650i -ZF8
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09-23-2015, 12:54 PM	#3
HoustonRider big pimpin 38 Rep 327 Posts Drives: 2014 M6 GC and 2015 4 GC Join Date: Dec 2014 Location: Houston iTrader: (0)	Should have been a diff outcome. He took all the time in the world to downshift, you should have been gone. But I don't have the Dinan, Im 744 crank hp, and almost 650 at the wheels. __________________ 2014 //M6 GC 2015 750Li 2015 435i GC
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09-23-2015, 01:39 PM	#4
S800vxr Private 12 Rep 78 Posts Drives: F13 M6 Coupe Join Date: Apr 2015 Location: UK iTrader: (0)	Hhmmmm. Pretty sure mine would at least give him a hard time. What power is your Dimma tune giving. Mine 728 fly here in the UK.
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10-06-2015, 08:40 AM	#13
PRican//M614 Second Lieutenant 31 Rep 288 Posts Drives: 2014 BMW M6, 2015 BMW X5... Join Date: Sep 2014 Location: Wantagh, long island iTrader: (0)	Depends on the weather the moisture in the air. The breath ability of the engine. No I'm bullshiting. I had 3 Gsx Rs 750 a 1000 and another 1000 bc I destroyed the first one. There's not a car built that can catch me. Maybe an Indy race car.... And I'll be on a wheelie.....
	Appreciate 0 Quote