Image of Bugatti Chiron Super Sport 300+

Bugatti Chiron Super Sport 300+ specs

Car type Coupe
Curb weight 1978 kg (4361 lbs)
Introduced 2020
Origin country France
Views 11.8k
Submitted by lafars

Powertrain specs

Engine type quad-turbo W16
Displacement 8.0 l (488 ci)
Power 1622 ps (1600 bhp / 1193 kw) @ 7000 rpm
Power / liter 203 ps (200 hp)
Power / weight 820 ps (809 bhp) / t
Transmission 7-speed DCT
Layout middle engine, all wheel drive
User avatar
User avatar

ChironSS  1d ago

Well after this, it'll probably be EXECUTION Ahahaha!

https://www.6speedonline.com/articles/details-behind-modified-bugatti-chiron-hitting-300-mph/

Quote>"The coolest feature of this prototype is definitely the laser-guided ride height, which uses sensors to detect any imperfections in the road and adjust the suspension accordingly."

Now PRE PRODUCTION PROTOTYPE'S are just EXACTLY that! They are not final specifications or FINALISED in anyway shape or form!

This means you CANNOT hold a manufacturer to specifications it's testing, to be provided for, in the final finished format. Let me repeat YOU CANNOT.

However, Bugatti has made a huge mistake by NOT even offering this technologically advanced and sophisticated suspension set up, even if it was just for the Bugatti Chiron Supersport 300+ owners. It was a KEY piece of technical equipment, without which 300MPH plus+ would have been even more difficult in pronouncement.

Anyway, it's done. Not crying over spilt milk!

And one word to the fangirls of other manufacturers, I ABSOLUTELY know their ****ing dirty little secrets too.

So don't think I won't mention DEVELOPMENTAL cars or other PRE PRODUCTION PROTOTYPE'S or gear ratios or bullshit aerodynamics/weight/acceleration/power to weight figures etc. Because I will, and already have!

Ain't tied to NO manufacturer.


User avatar

ChironSS  1d ago

Well, at the risk of being excommunicated by Bugatti here's a little video you need to watch>

https://twitter.com/DownTheRange/status/1180113443929694209?t=KCYRCqaJrIjX_tcZ290XHQ&s=19

186- 249MPH or 300-400km/h on the timers vs the GPS feeds on the screen equals=

0.15- 0.24 seconds= NINE SECONDS! Oo

That's quicker than the SSC Tuatara.

Bugatti you have to Love them!

That W16 in the back of the pre production prototype was, let's just say, RADICALLY maximised.

LOL!

I've known about from literally the get go! I've dropped hints, but I guess nobody cared!

So if the PRODUCTION version is rated at 12.1 seconds which is absolutely believable, then 12.1+ 9= 21.1 seconds 0-400km/h! Oo

Now I'd DEFINITELY want to see that!

But, it's highly very highly unlikely. 23 seconds is pushing it theoretically to the outer edges anyway.

For me, all this bullshit means the standard specifications car is looking more and more attractive from the viewpoint of verifications.

Shaking my head.


 

User avatar

ChironSS  2w ago

Yes indeed. And the implications for the SS project have DEFINITELY not escaped my attention. If the numbers extrapolate, the SS will push the KR HARD to the very outer edges. ;)


User avatar

Shoebsayyed  1w ago @ChironSS

Torque Curve
Image no 8: 1490PS(1470bhp)@ Approximate 6200rpm & Speed at 369km/h
Calculated Torque is
1688Nm(1245lb-ft)@6200rpm

Image no 9: 1615PS(1593bhp)@6790rpm
Estimated speed is 404km/h
Calculated Torque is 1670.60Nm(1232lb-ft)

I take circumference 2.237meters in gear 6th

Torque = bhp÷rpm×5252 calculated value in bhp or 745.7watt=1bhp 1PS=0.9863bhp

Reference link: https://newsroom.bugatti/en/press-releases/bugatti-chiron-super-sport-high-speed-testing-for-optimal-longitudinal-performance

Top gear Editor: Jack Rix Tested the  chiron super sport at 211mph(340km/h) he said the chiron ss gives 1615PS@6950rpm &  calculated torque is
1632Nm(1203.80lb-ft)@6950rpm

Maty Watson from carwow
Chiron super sport gives max power 1615PS@7047rpm /1609.67Nm(1187.23lb-ft)@7047rpm

That Maximum Torque value is over 1688Nm@6200rpm and peak power is 1615PS@6790~7047rpm thats why i take Approximate maximum torque is  1700Nm(1254lb-ft)@6000rpm because Turbocharged engine generally produce peak torque is about 6000 to 6500rpm
And the linear torque is 1600Nm(1180lb-ft) @2250~7090rpm the reason i take 90rpm extra is because engine produce peak power at 7100rpm redline if we divide 1615PS(1593bhp)÷7090rpm=1600Nm(1180lb-ft) & at 7100rpm torque is 1597.66Nm(1178.37lb-ft)

Drag Coefficient Area Value is (CdA): 0.70m² Cd is 0.33
i take this value in my calculation & take air Density is 1.233kg/m³ which was found at 13°C this is the temperature of Lower Saxony at Germany

Frontal Area: in my previous calculation i take wrong value 2.056m² i take this value because i found this value at this website
Automobile-Catalogue.com but the ChironSS value was correct Frontal Area is 2.142m² which is 86.71% of total area in the veyron this percentage is 86.13% in the chiron this value is 0.586% higher

Rolling Resistance: in my previous calculation i take this Estimate(0.0083) based on wikipedia Car Tyre measurement is 0.0062~0.0150 thats why i take Estimate 0.0083 first time i used this value in veyron super sport
Reference link: https://en.m.wikipedia.org/wiki/Rolling_resistance
Coefficient of rolling resistance of standard Michelin pilot sport cup 2 tires is 0.0099(9.9kg/tone) but bugatti has Dedicated tyres instead of normal Michelin sport cup 2

Weight: chiron super sport 1972kg with 4kg Aluminum wheels. bugatti said in this press release
Reference link: https://newsroom.bugatti/en/press-releases/shaped-by-speed-the-cutting-edge-technology-behind-worlds-fastest-and-most-luxurious-grand-tourisme
.1960kg with Magnesium wheels which is 12kg lighter compare to Aluminum wheels
& 16kg lighter than Standard Chiron wheels
In my previous specification i take weight: 1945kg for 300+ variant because when i check weight reduction of chiron pur sport
According to bugatti ( 10kg from rear wing
16kg from Magnesium wheels
3kg from brake pads & Discs
Total: 19kg & 31kg form ,Alcantara Interior & other Areas.) Thats why i reduce 15kg more & CSS300+ Variant have same alcantara interior as pur sport
Distribution: 2300kg is Maximum gross Vehicle weight rating 1: 1010kg 2: 1290kg
1 is Front & 2 is for Rear i take this reading from chiron  super sport scuff plate at door seal

Ride height: front 60mm rear: 65mm said
Andy Wallece in shmee150 video
Reference link: https://www.google.com/url?sa=t&source=web&rct=j&url=https://m.facebook.com/Shmee150/videos/this-is-the-bugatti-chiron-super-sport-300-that-broke-300mph/2533487963568055/&ved=2ahUKEwiX7omOzqT1AhW0oFwKHfFtCYgQwqsBegQIBBAD&usg=AOvVaw02bh7EpVdpsaadicc8A7Cc

Dimension: chiron super sport & ss300+
Is 189mm longer than chiron claimed by bugatti in specification of CSS
Reference link: https://newsroom.bugatti/models/specifications/04-chiron-super-sport/211122_bu_chiron-super-sport_eng.pdf

Rear wing Angle: fully retracted at angle of -10° in EB mode. Check aerodynamics passage in this website
Reference link: https://www.4legend.com/2017/iaa-2017-a-la-decouverte-des-technologies-inedites-de-la-bugatti-chiron/

Circumference calculation: circumference is change when tyre pressure is change.
when chris Harris drive at 236mph(380km/h) they said chiron change its tyre pressure because tyre pressure are critical
1: Reference link: https://www.google.com/url?sa=t&source=web&rct=j&url=https://m.youtube.com/watch%3Fv%3DwO6jaDmJLog&ved=2ahUKEwj5t43f0qT1AhWQSsAKHUVUBeYQwqsBegQIBRAE&usg=AOvVaw2ETEfa5eU7x79COQvaDuEF
2: Reference is from: SSC Tuatara when jarod shelby released the data of SSC Tuatara of top speed Run at nevada they mentioned how much tyre pressure is when we filled the air
Link: https://www.supercars.net/blog/ssc-tuataras-331-mph-record-invalidated-due-to-misleading-video/
Circumference with filled air:
Without filled air: Michelin Pilot Sport Cup 2
Rear Tire Diameter / Circumference: 345/30ZR20=1.9210839metres with filled air circumference is 2.263775metres
Circumference is increase about 15% maximum. Chiron has Maximum pressure is about 3.05bar(44.23psi)
Chiron tyre circumference is change while driving because was change & bugatti never mentioned on internet that how this pressure changing system works

Gear Rate at 6700rpm of Standard chiron
1: 2.455   -90km/h
2: 1.6110 -150km/h
3: 1.1900 -200km/h
4: 0.9200 -260km/h
5: 0.7500 -320km/h
6: 0.6190 -381km/h
7: 0.5505 -420km/h
Calculated Circumference(metres)-km/h
1: 2.004-90
2: 2.190-150
3: 2.157-200
4: 2.168-260
5: 2.175-320
6: 2.132-380
7: 2.096-420
Final Drive: Front: 2.466 Rear: 3.643
Gear rate at rpm link: https://newsroom.bugatti/models/specifications/01-chiron/211122_bu_chiron-eng.pdf

Crank to Wheel efficiency Calculation:
I take Estimated 10% power loss but efficiency is over 90% refrence in 2 link & first refrence is from veyron dyno video
1: Reference link: https://www.google.com/url?sa=t&source=web&rct=j&url=https://m.youtube.com/watch%3Fv%3DhC8-WbB775g&ved=2ahUKEwi8sYiJ16T1AhVloVwKHR2mA44QwqsBegQIBhAF&usg=AOvVaw2RhaLW7qoOaDpJ_kkrQ4PR
( Engine: 987bhp(1001PS) at dyno its 897bhp(909.46PS) that gives drivetrain power loss is 9.1% & for the torque is around 2.38% 1250Nm(922lbft) at wheels 1220Nm(900lb-ft))
2: Reference link: https://www.google.com/url?sa=t&source=web&rct=j&url=https://m.youtube.com/watch%3Fv%3DRnsKpus3HXM&ved=2ahUKEwi8sYiJ16T1AhVloVwKHR2mA44QwqsBegQIBBAF&usg=AOvVaw0_3RVXy1k21byBMqjEwh7g
Chiron at cannonball dyno: power at wheels 1388.49PS(1369.47bhp)@6620rpm & torque is 1576.78Nm(1162.97lb-ft) @5060rpm. Values measured at 4th Gear
At Engine: 1504PS(1483bhp)@6682rpm
1600Nm(1180lb-ft)@2000~6000rpm
Max power i record from top gear top speed run of silver chiron sport 423km/h
(262.847mph) if we calculate efficiency based on 1500PS(1479bhp)@6620rpm
Than efficiency is 92.594% & 7.40% power loss in drive train & For the Torque is 98.556%.Dyno measure power in bhp because torque and horsepower cut at 5252rpm which gives value in BHP


User avatar

Shoebsayyed  1w ago @ChironSS

This is references of my previous specification how i calculate & take Approximate.


User avatar

ChironSS  1w ago @Shoebsayyed

Thank You. I appreciate the efforts. I'm familiar with most of the Sources, not all though so I'll definitely take a look another time!


User avatar

Corvolet3  1w ago @ChironSS

Looks like someone found himself a Chiron soulmate :D


User avatar

ChironSS  1w ago @Corvolet3

LOL! There's enough Corvette buddies here too!


User avatar

ChironSS  3w ago

These were my ORIGINAL calculations I believe the very first I achieved here at Fastestlaps, and they were done ONE YEAR ago! Oh my God how time flies! I thought it'd be good to "drag" them up again from the depths and compare to other data sets.

Nothing has changed my mind much since then. I believe these are eminently achievable. With the right driver!

Quote>"ChironSS 1y ago

These are mathematical calculations for the Bugatti Chiron Supersport 300+ production car based on official current Bugatti sources and resources of which were multifold. And these are published ahead of it's production release for verification and authentication purposes. It's going to be an absolute MONSTER! Just some lockdown mental activity! Vive la Marque!

0-100km/h= 2.3 seconds
0-200km/h= 5.5 seconds
0-300km/h= 11.6 seconds
0-400km/h= 22.29 seconds
0-500km/h= 63.71 seconds
0-100-0km/h= 4.83 seconds
0-200-0km/h= 10.18 seconds
0-300-0km/h= 18.27 seconds
0-400-0km/h= 31.65 seconds
0-500-0km/h= 75.41 seconds
100-0km/h= 2.53 seconds
200-0km/h= 4.68 seconds
300-0km/h= 6.67 seconds
400-0km/h= 9.36 seconds
500-0km/h= 11.70 seconds

100-200km/h= 3.2 seconds
200-300km/h= 6.1 seconds
300-400km/h= 10.69 seconds
400-500km/h= 41.42 seconds

Top Speed= 515km/h Bugatti *claimed top speed
1/4 mile= 9.1 seconds @164MPH (E)."

;)


User avatar

ChironSS  3w ago

If Andy Wallace states it's a BUGATTI World Record speed for PRODUCTION cars, I ain't arguing with him! Well, maybe a touch!

 


User avatar

Shoeb  2m ago

Bugatti Chiron super sport 300+ Production Spec: Engine: 7993 W16 DOHC Quad-Turbocharged
Transmission: 7 speed DSG Dual-Clutch w/
6 Clutch Plates (×2 sets)
Gear Ratio's(:1): 1: 3.176
2: 2.24
3: 1.19
4: 0.92
5: 0.75
6: 0.62
7: 0.5698 (3.6% Longer 7th Gear Ratio)
Reverse: 3.579
Rear intermediate drive shaft: 0.710
Final Drive @Front: 2.466 @Rear: 3.643
Gear 2,4,6 & Reverse Are Front side of the gearbox & 1,3,5 & 7 Are Rear of the gearbox
& 2 sets of 6 Clutch plates. Crank to Wheel Efficiency at 6th Gear or higher 90%
Aerodynamics: Drag-Coefficient: 0.334
Coefficient of rolling resistance: 0.0083
Weight: 1945kg Gross: 2200kg
Frontal Area: 2.056m² at Ride Height: Front: 60 Rear: 65mm Rear wing angle: -10° or Fully retracted
Dimensions: Length: 4733(+189mm longer than Standard chiron) W: 2038(2183 incl. Mirror's)
Height: 1212 at Ground Clearance: Front: 115 Rear: 116mm
Power: 1615PS@6750~7100rpm(Redline)
Peak Torque: 1700Nm@6000rpm & (1600Nm@ 2250~7090rpm Continuously available)

 

User avatar

196ss  2m ago

Thank you for your specifications. I'm curious, where were you able to get them?
At the same time, you seem to be a little confused about the gear ratios. Gears 1 and 2 you gave without taking into account the coefficient of 0.71, and the rest are already multiplied by it. The 7th gear of the standard Chiron is 0.55, respectively the SS300+ will be 0.55/1.036 = 0.531 (because it is longer, not shorter).
As far as I understand in the Top speed mode, the rear wing is partially retracted and the angle is 1 deg.
Nevertheless, I have substituted your figures in my calculation and the results are somewhat improved (althouth I don't really believe in 1945 kg curb weight):

Metric system:
0-100 - 2.54 sec.
0-160 - 4.24 sec
0-200 - 5.75 sec
0-250 - 8.30 sec
0-300 - 11,76 sec
0-350 - 16,79 sec
0-400 - 25,19 sec
400 m - 9.21@266.8 km/h
1000 m - 16.17@345.2 km/h

Imperial system:
0-60 - 2.41 sec
0-100 - 4.28 sec
0-150 - 7,85 sec
0-200 - 13,66 sec
0-250 - 25,71 sec
1/4 mile - 9.24@166.2 mph
1/2 mile - 14.09@202.9 mph
Mile - 22.17@238.5 mph

Top speed without limiter 478,9 km/h, 297,6 mph


User avatar

Shoeb  2m ago @196ss

@ChironSS
Your Drag coefficient value of chiron ss is correct but, it is value measured in wind tunnel & out of the wind tunnel this increase about 5% which about 0.334


User avatar

Shoeb  2m ago @196ss

My pleasure bro.


User avatar

Shoebsayyed  5d ago @196ss

Torque Curve
Image no 8: 1490PS(1470bhp)@ Approximate 6200rpm & Speed at 369km/h
Calculated Torque is
1688Nm(1245lb-ft)@6200rpm

Image no 9: 1615PS(1593bhp)@6790rpm
Estimated speed is 404km/h
Calculated Torque is 1670.60Nm(1232lb-ft)

I take circumference 2.237meters in gear 6th

Torque = bhp÷rpm×5252 calculated value in bhp or 745.7watt=1bhp 1PS=0.9863bhp

Reference link: https://newsroom.bugatti/en/press-releases/bugatti-chiron-super-sport-high-speed-testing-for-optimal-longitudinal-performance

Top gear Editor: Jack Rix Tested the  chiron super sport at 211mph(340km/h) he said the chiron ss gives 1615PS@6950rpm &  calculated torque is
1632Nm(1203.80lb-ft)@6950rpm

Maty Watson from carwow
Chiron super sport gives max power 1615PS@7047rpm /1609.67Nm(1187.23lb-ft)@7047rpm

That Maximum Torque value is over 1688Nm@6200rpm and peak power is 1615PS@6790~7047rpm thats why i take Approximate maximum torque is  1700Nm(1254lb-ft)@6000rpm because Turbocharged engine generally produce peak torque is about 6000 to 6500rpm
And the linear torque is 1600Nm(1180lb-ft) @2250~7090rpm the reason i take 90rpm extra is because engine produce peak power at 7100rpm redline if we divide 1615PS(1593bhp)÷7090rpm=1600Nm(1180lb-ft) & at 7100rpm torque is 1597.66Nm(1178.37lb-ft)

Drag Coefficient Area Value is (CdA): 0.70m² Cd is 0.33
i take this value in my calculation & take air Density is 1.233kg/m³ which was found at 13°C this is the temperature of Lower Saxony at Germany

Frontal Area: in my previous calculation i take wrong value 2.056m² i take this value because i found this value at this website
Automobile-Catalogue.com but the ChironSS value was correct Frontal Area is 2.142m² which is 86.71% of total area in the veyron this percentage is 86.13% in the chiron this value is 0.586% higher

Rolling Resistance: in my previous calculation i take this Estimate(0.0083) based on wikipedia Car Tyre measurement is 0.0062~0.0150 thats why i take Estimate 0.0083 first time i used this value in veyron super sport
Reference link: https://en.m.wikipedia.org/wiki/Rolling_resistance
Coefficient of rolling resistance of standard Michelin pilot sport cup 2 tires is 0.0099(9.9kg/tone) but bugatti has Dedicated tyres instead of normal Michelin sport cup 2

Weight: chiron super sport 1972kg with 4kg Aluminum wheels. bugatti said in this press release
Reference link: https://newsroom.bugatti/en/press-releases/shaped-by-speed-the-cutting-edge-technology-behind-worlds-fastest-and-most-luxurious-grand-tourisme
.1960kg with Magnesium wheels which is 12kg lighter compare to Aluminum wheels
& 16kg lighter than Standard Chiron wheels
In my previous specification i take weight: 1945kg for 300+ variant because when i check weight reduction of chiron pur sport
According to bugatti ( 10kg from rear wing
16kg from Magnesium wheels
3kg from brake pads & Discs
Total: 19kg & 31kg form ,Alcantara Interior & other Areas.) Thats why i reduce 15kg more & CSS300+ Variant have same alcantara interior as pur sport
Distribution: 2300kg is Maximum gross Vehicle weight rating 1: 1010kg 2: 1290kg
1 is Front & 2 is for Rear i take this reading from chiron  super sport scuff plate at door seal

Ride height: front 60mm rear: 65mm said
Andy Wallece in shmee150 video
Reference link: https://www.google.com/url?sa=t&source=web&rct=j&url=https://m.facebook.com/Shmee150/videos/this-is-the-bugatti-chiron-super-sport-300-that-broke-300mph/2533487963568055/&ved=2ahUKEwiX7omOzqT1AhW0oFwKHfFtCYgQwqsBegQIBBAD&usg=AOvVaw02bh7EpVdpsaadicc8A7Cc

Dimension: chiron super sport & ss300+
Is 189mm longer than chiron claimed by bugatti in specification of CSS
Reference link: https://newsroom.bugatti/models/specifications/04-chiron-super-sport/211122_bu_chiron-super-sport_eng.pdf

Rear wing Angle: fully retracted at angle of -10° in EB mode. Check aerodynamics passage in this website
Reference link: https://www.4legend.com/2017/iaa-2017-a-la-decouverte-des-technologies-inedites-de-la-bugatti-chiron/

Circumference calculation: circumference is change when tyre pressure is change.
when chris Harris drive at 236mph(380km/h) they said chiron change its tyre pressure because tyre pressure are critical
1: Reference link: https://www.google.com/url?sa=t&source=web&rct=j&url=https://m.youtube.com/watch%3Fv%3DwO6jaDmJLog&ved=2ahUKEwj5t43f0qT1AhWQSsAKHUVUBeYQwqsBegQIBRAE&usg=AOvVaw2ETEfa5eU7x79COQvaDuEF
2: Reference is from: SSC Tuatara when jarod shelby released the data of SSC Tuatara of top speed Run at nevada they mentioned how much tyre pressure is when we filled the air
Link: https://www.supercars.net/blog/ssc-tuataras-331-mph-record-invalidated-due-to-misleading-video/
Circumference with filled air:
Without filled air: Michelin Pilot Sport Cup 2
Rear Tire Diameter / Circumference: 345/30ZR20=1.9210839metres with filled air circumference is 2.263775metres
Circumference is increase about 15% maximum. Chiron has Maximum pressure is about 3.05bar(44.23psi)
Chiron tyre circumference is change while driving because was change & bugatti never mentioned on internet that how this pressure changing system works

Gear Rate at 6700rpm of Standard chiron
1: 2.455   -90km/h
2: 1.6110 -150km/h
3: 1.1900 -200km/h
4: 0.9200 -260km/h
5: 0.7500 -320km/h
6: 0.6190 -381km/h
7: 0.5505 -420km/h
Calculated Circumference(metres)-km/h
1: 2.004-90
2: 2.190-150
3: 2.157-200
4: 2.168-260
5: 2.175-320
6: 2.132-380
7: 2.096-420
Final Drive: Front: 2.466 Rear: 3.643
Gear rate at rpm link: https://newsroom.bugatti/models/specifications/01-chiron/211122_bu_chiron-eng.pdf

Crank to Wheel efficiency Calculation:
I take Estimated 10% power loss but efficiency is over 90% refrence in 2 link & first refrence is from veyron dyno video
1: Reference link: https://www.google.com/url?sa=t&source=web&rct=j&url=https://m.youtube.com/watch%3Fv%3DhC8-WbB775g&ved=2ahUKEwi8sYiJ16T1AhVloVwKHR2mA44QwqsBegQIBhAF&usg=AOvVaw2RhaLW7qoOaDpJ_kkrQ4PR
( Engine: 987bhp(1001PS) at dyno its 897bhp(909.46PS) that gives drivetrain power loss is 9.1% & for the torque is around 2.38% 1250Nm(922lbft) at wheels 1220Nm(900lb-ft))
2: Reference link: https://www.google.com/url?sa=t&source=web&rct=j&url=https://m.youtube.com/watch%3Fv%3DRnsKpus3HXM&ved=2ahUKEwi8sYiJ16T1AhVloVwKHR2mA44QwqsBegQIBBAF&usg=AOvVaw0_3RVXy1k21byBMqjEwh7g
Chiron at cannonball dyno: power at wheels 1388.49PS(1369.47bhp)@6620rpm & torque is 1576.78Nm(1162.97lb-ft) @5060rpm. Values measured at 4th Gear
At Engine: 1504PS(1483bhp)@6682rpm
1600Nm(1180lb-ft)@2000~6000rpm
Max power i record from top gear top speed run of silver chiron sport 423km/h
(262.847mph) if we calculate efficiency based on 1500PS(1479bhp)@6620rpm
Than efficiency is 92.594% & 7.40% power loss in drive train & For the Torque is 98.556%.Dyno measure power in bhp because torque and horsepower cut at 5252rpm which gives value in BHP


User avatar

196ss  2m ago

@ChironSS

So, I did the calculations for the production model Chiron SS300+ in "Top Speed" mode as you requested. Some data I couldn't find, so I had to use some approximations.
Curb weight with driver - 2150 kg (according to Bugatti 15 kg lighter than the standard Chiron).
Engine power - 1177 kW at 7000-7100 rpm
Torque - 1600 Nm at 2250-7000 rpm
Red line - 7100 rpm.
Frontal area - 2.142 m2.
Aerodynamic drag coefficient - 0.319 (not an official figure).
Downforce coefficient: 0.00233 on the front axle, 0.00315 on the rear (estimated values in Top Speed mode).
After watching several videos of acceleration on the speedo of the Veyrons and Chirons, I came to the conclusion that their gear ratios are basically the same except for the first gear. It's obviously shorter on the Chiron. According to Bugatti, the SS and SS300+ have a 3.6% longer 7th gear. Bottom line, my estimates on gear ratios are: Axle - 3.643, 1st - 2.455, 2nd - 1.611, 3rd - 1.19; 4th - 0.920; 5th - 0.750; 6th - 0.619; 7th - 0.531.

Metric system:
0-100 - 2.54 sec.
0-160 - 4.33 sec
0-200 - 5.94 sec
0-250 - 8.63 sec
0-300 - 12,14 sec
0-350 - 19,38 sec
0-400 - 27,32 sec
400 m - 9.30@261.7 km/h
1000 m - 16.33@344.9 km/h

Imperial system:
0-60 - 2.41 sec
0-100 - 4.38 sec
0-150 - 8,16 sec
0-200 - 14,01 sec
0-250 - 27,81 sec
1/4 mile - 9.34@163.1 mph
1/2 mile - 14.24@201.5 mph
Mile - 22.53@231.1 mph

Top speed limited to 440 km/h - 273.4 mph.
Unlimited must accelerate to 473.1 km/h - 294.0 mph.


User avatar

ChironSS  3m ago

So thoughts over the 300-400km/h "situation". After looking at well quite a few production cars and delving into the modified scene too the first thought that comes to mind is the obviously prepared pre production prototype actually and very obviously had more power that was quoted.

McLaren and I think it was BMW or Mercedes twin turbocharged V8's have the manufacturer quoted power at the cranskshaft actually at the wheels. This is absolute fact.

There was a dyno test in England of the Bugatti Veyron and it was exactly the same except the torque was was over.

I HAVE benchmarked this with another production car AND used a little simulator to get the time they achieved at Ehra-Lessien. I'll publish or maybe not, haven't decided. It's my work for now.

But as to WHY the production car is *claimed to have performance significantly worse accordingly to Bugatti's own published figures I can't say.

Until an independent test to high speeds is done no one will ever know. I individually feel Bugatti are to a degree, are potentially, sandbagging.

And irrespective of how much I don't or don't Love Bugatti I hold them to exactly the same standard as EVERYBODY else. You can remember how pissed I was within minutes of the video being released, because I knew what was coming.

It did. But unlike some I'm not hypocritical. But still I'll work with what's available! ;)


User avatar

flt158  3m ago

I just thought I ought to state that my Fastest Cars 2021 calendar has a very large photo of the Bugatti Chiron Super Sport 300+.
What a magnificent hyper car it truly is!
It's still my No. 1.
I hope November will last good and long.

Flt 158


User avatar

ChironSS  3m ago

https://www.motorauthority.com/news/1128791_first-8-bugatti-super-sport-300-hypercars-built-ready-for-delivery

Quote>"There are rumors Bugatti may provide owners of the Chiron Super Sport 300+ with an option to remove the speed limit for official visits to the Ehra-Lessien test track, though the automaker is yet to comment on this."

Can't comment on the rumour, maybe an owner (after doing Dragy verifications runs! LOL!) can confirm it either way.

273MPH is more than enough and although 450 Bugatti Veyron's in various guises exist I can't recall 200MPH plus+ runs in Germany. These first two cars are in the United States of America and unless you've got access to Johnny Bohmer Proving Grounds you aren't getting anywhere near it.

And 0-300km/h of 12 seconds circa is on production records pace anyway. 0-100km/h has been around 2.5 seconds for years? Unlike some manufacturers. 0-200km/h it'll possibly beat out just about everything ICE related currently in existence. And even on a day it gets beaten by something, it'll be historically significant forever.

:)


User avatar

ChironSS  3m ago

 


User avatar

ChironSS  3m ago

https://www.caranddriver.com/reviews/a37793066/2021-bugatti-chiron-super-sport-drive/

Quote>"The Bugatti makes its 1578 horsepower on 93 OCTANE PREMIUM, and deliveries start early next year."

Quote>"New cars from Koenigsegg, SSC, and Hennessey all claim equal or greater power, but not all have yet been homologated for road use and ALL REQUIRE E85 fuel."

Quote>"So along with a couple of other Bugattis with the same 1578-hp engine, there's a good chance that the Chiron Super Sport we've just driven will be the MOST POWERFUL combustion-engine production car from a major manufacturer ever."

^^ Yes. Absolutely.


User avatar

ChironSS  4m ago

 


User avatar

ChironSS  4m ago

"Corrected" figures>

0-100km/h= 2.4 seconds
0-200km/h= 5.4 seconds
0-300km/h= 11.60 seconds
0-400km/h= 27 seconds

These are based on the 2016 Bugatti Chiron manufacturer claims to the actual verified times in 2017. I've simply worked out the difference and "corrected" the manufacturer claims for the Bugatti Chiron Supersport by exactly the same amount. Slightly more for the 0-400km/h figure.

These are potentialities NOT absolutes.

They've got to do another 0-400-0km/h test. It's irrelevant whether they beat the current World "record" with hulked out with optional extras or not. They could probably trash it to 300km/h!

They just need to beat 41.96 seconds.

;)


User avatar

ChironSS  4m ago

 


User avatar

ChironSS  4m ago

Also the top speeds are electronically limited to the same speed as the previous Supersports at 440km/h.

So the 300+ doesn't do 300MPH even though aerodynamics, transmission, engine, braking and tyres can all absolutely handle it.

Uhm...


User avatar

ChironSS  4m ago

https://newsroom.bugatti/en/press-releases/first-bugatti-chiron-super-sport-300-ready-for-launch

The official press release from Bugatti Newsroom.

Still 1600hp. So there goes my theory about any increase. It wasn't going to happen anyway the Bugatti Bolide is 1600hp in 2024.

So we can add Bugatti to the growing list of manufacturers that, well show one thing performing and another selling. Definitely not a "10" second car this one.


User avatar

The simp  4m ago

https://www.topgear.com/car-news/first-eight-bugatti-chiron-super-sport-300-hypercars-are-ready-delivery

Does anyone notice the fact that the production version and the prototype have different grills? I mean why would you use a bigger air intake for cooling when the car is clearly making same power as the production version.

:)


User avatar

ChironSS  4m ago

Quote>"On 2 August 2019, Andy Wallace hit 304.773MPH in a VERY special Chiron at Ehra-Lessien, becoming the first hypercar to break 300MPH."

*Adapted from Top Gear.

TWO years ago Bugatti took the Chiron Supersport 300+ to over 300MPH in a factory manufactered hypercar!

A historically significant achievement. I ****ing Love Bugatti. Have you ever noticed? LOL!

I've never claimed they are the "best", that doesn't exist and is fundamentally opinionated. But I absolutely will say they are amongst the very finest of all!

Vive La Marque!

Je ne peux pas décrire ma passion pour cette marque et ce fabricant français exquis. Et autant que j'aime McLaren et la F1, c'est Bugatti qui me passionne. Je ne m'attends pas à ce que quelqu'un comprenne et je m'en fiche de toute façon. Pour Bugatti, c'est la vie!


User avatar

ChironSS  5m ago

In the video below>

2X Bugatti Chiron Supersport 300+
4X Bugatti Chiron Supersports
1X Bugatti Chiron
1X Bugatti Chiron Pur Sport

That's EIGHT road legal specifications production cars testing.

There's many others too in each bracket.

You won't see this very often or if at all! Bugatti just go so much further.


User avatar

ChironSS  5m ago

 


User avatar

RickyAstle98  5m ago

Chiron Super Sport (no 300+) does not use maximum boost pressure last three gears
Thats why its slower + 5% more downforce


User avatar

ChironSS  6m ago

1800hp equals 300-400km/h in 10 seconds. Absolutely.

So Bugatti sort it out. Because when those owners of those £4 million pound (plus options) hypercars find out, IRRESPECTIVE of the top speed, I think their going to be alarmed.

The engine can do it. I reached out to a United Kingdom ECU modifications specialist. The BEST. It's possible without high octane fuels.

Naughty Bugatti.

I'm not fussed though the standard production Bugatti Chiron the VALIDATED one is enough.


User avatar

ChironSS  6m ago

TWO Bugatti Chiron Supersport 300+ ROAD LEGAL cars are now testing along with the EIGHT Bugatti Chiron Supersport's that are road legal plus FOUR Bugatti Chiron Pur Sports.

I guess we will hear about technical specifications changes over and above each other shortly.

That's more cars nearly than some other manufacturers produce yearly? Oo


User avatar

ChironSS  7m ago

https://www.bugatti.com/media/news/2021/bugatti-chiron-super-sport-high-speed-testing-for-optimal-longitudinal-performance/

Quote>"The Chiron Super Sport accelerates from 0 to 400 km/h in 28.6 seconds, making it four seconds faster than the Chiron."

So Bugatti FINALLY posted the 0-400km/h time without those stupid percentages. So they are FORGIVEN! It still doesn't explain the discrepancies though.

Anyway it's stupid quick and fast and there's NO other hypercar with such a wide ranging depth of capabilities. NONE.


User avatar

ChironSS  7m ago

https://www.motor1.com/news/515608/bugatti-chiron-super-sport-testing/

Quote>"Following tests conducted at "only" 236 mph (380 km/h), the latest flavor of the W16 beast has entered the final development phase, which involves reaching its electronically governed top speed of 273 mph (440 km/h). To accurately register all the relevant data and make last-minute tweaks, the peeps from Molsheim have fitted a prototype with approximately 100 additional sensors that record temperature, pressure, and other key information."

Let's trust the 300-400km/h "calibration" is working properly.

Bugatti IS better than this.


User avatar

ChironSS  8m ago

https://www.caranddriver.com/news/amp28870777/bugatti-chiron-304-mph-world-record-speed/

Click on "View photo's"

21 out of 22. Now you MIGHT have seen that but I'm guessing not. It was a prized "possession" in a way at somepoint.

Now I don't care as much.


User avatar

ChironSS  8m ago

https://newsroom.bugatti/en/feature-stories/2021/the-bugatti-chiron-super-sport-the-quintessence-of-luxury-and-speed

Quote>"The Chiron Super Sport accelerates from 0 to 200 km/h in 5.8 seconds and to 300 km/h in 12.1 seconds. The Chiron Super Sport accelerates from 0 to 400 km/h seven percent quicker than a Chiron."

So>

0-100= 2.4 we will keep that the same.
0-200= 5.8
0-300= 12.1
0-400= 30.318? compared to 32.6 seconds?

The Johnny Bohmer Chiron did 300-400km/h in 16 seconds! Plus 13.1 equals 29.1 seconds? Top Gear Magazine also did the same figure give or take?

The pre production prototype did 300-400km/h in circa TEN seconds, what TF is going on? A 1.282 second improvement to 400km/h? It SHOULD be nearly TEN seconds. I don't understand. And once the idiot's find out, as quite rightly they SHOULD, how the hell am I going to defend THIS! :(


User avatar

ChironSS  8m ago

 

Production version of the Bugatti Chiron Supersport NOT the 300+.


User avatar

ChironSS  9m ago

 

I do believe this might be the FIRST PRODUCTION Bugatti Chiron Supersport 300+. I know 3 of the 4 road legal prototypes. This has a polished exterior "C" line they do not. Definitely don't. The DESTROYER is seemingly finally here!