0-60

RadM5 · 01-26-2006, 10:07 PM

Why so much variation in the numbers? it seems that if 3-4 runs are done around a certain time...it would be fairly reproducible. 5.6-6.7 is quite a range.

shimshimhada · 01-26-2006, 10:13 PM

Factors, many, many factors.

DTM · 01-26-2006, 10:20 PM

Quote:

Originally Posted by shimshimhada

Factors, many, many factors.

Temperature, elevation, tires, tire wear, road texture, road quality, road smoothness, wind, shift times, shift speed, rpm when clutch is dropped, age of car, how car was broken in and bla bla bla.

shimshimhada · 01-26-2006, 10:22 PM

Quote:

Originally Posted by DTM

Temperature, elevation, tires, tire wear, road texture, road quality, road smoothness, wind, shift times, shift speed, rpm when clutch is dropped, age of car, how car was broken in and bla bla bla.

And most importantly...THE DRIVER!

DTM · 01-26-2006, 10:24 PM

Quote:

Originally Posted by shimshimhada

And most importantly...THE DRIVER!

You meen how many times he visits Mcdonalds each week?

Hey, with all the shit in those burgers, I'm sure a fat guy can bring the time up a few 10th's!

JamieA · 01-27-2006, 12:37 AM

What Shim and DTm both said... and I will add "mechanical sympathy" to that list.

Some testers drive it like they stole it, some have a policy of treating cars like their owners would in order to get more real-world times...

lux.sh · 01-27-2006, 12:43 AM

mag racing no good.

RyBMW · 01-27-2006, 12:48 AM

The driver has a big factor on the 0-60. If you can't drive the car....

rss · 01-27-2006, 02:09 AM

Is it true for a manual that the way to obtain the best 0-60 time is to start with the car in 2nd gear ?

JamieA · 01-27-2006, 02:11 AM

Quote:

Originally Posted by rss

Is it true for a manual that the way to obtain the best 0-60 time is to start with the car in 2nd gear ?

I haven't heard of this, not saying it isn't true though... To do this you would have to really dump the clutch with high RPM, I wouldn't want to do that to my car.

I thought this would loose time though as the engine will bog down a bit when you let go.

The scenario where it would seem to make any sense is if the car had a low second gear, and a low RPM limit and you had to do a 2-3 change to reach 100km/h just at the end. Starting in 2nd would save a gear change.

So I don't see this as being a general rule, perhaps for some specific types of cars only.

stressdoc · 01-27-2006, 07:12 AM

Never in a BMW. 1st will always be quicker. Some folks find it easier to negotiate slippery conditions (ice) by starting in 2nd.

The slowest 0-60 times are for automatics loaded with options tested under 'normal' driving conditions (Edmunds). The fastest times are Euro model manuals tested under 'hot-rod' techniques (Car&Driver).

Driver is not usually a big factor in magazine comparos -- just what starting/shifting techniques the magazine tries to keep consistent. E.g., Car & Driver prides themselves on being hotshoes, and usually post times that are a 1/2 sec or so quicker than Road & Track.

davinet78 · 01-27-2006, 07:50 AM

the main factor is the driver

rss · 01-27-2006, 07:57 AM

I can't remember where I read it. At the time I had an E36 M3 Evo and it may have been one of the bmw magazines that suggested 0-60 in 2nd gear (as it will easily hit 60 in 2nd).

stressdoc · 01-27-2006, 08:01 AM

Keeping it in 2nd (maybe even redlining it), yes. Starting in 2nd? Bizarre. The M3 Evo loves revs, so unless you could get (and keep!) the tires spinning sufficiently to keep it in the powerband, it would bog compared to launching in 1st.

You can do an effective start in 2nd in a Corvette, but not a 3-series.

Robin_NL · 01-27-2006, 08:02 AM

Always use 1st gear for those 0-60 times. (First put DTC totally off)On a dry tarmac road put it in first, rev it to about 3000rpm. 'Dump' the clutch and hit the throttle with 'some wheelspin' you 'll feel, then @ 6600rpm shift as fast as possible to second and do the same again:slam the throttle

At 6600 shift again etc etc.

Disclaimer, be careful and don't bring yourself or others into danger

I'm no streetracer

wheeler · 01-27-2006, 02:03 PM

Quote:

Originally Posted by rss

Is it true for a manual that the way to obtain the best 0-60 time is to start with the car in 2nd gear ?

I'm dating myself by saying this, but that was only true for the old muscle cars, with brute torque, a 4 speed manual, 4:11 gearing, and low redline.

You'd start in 2nd, shift to 3rd, and be done with the race. Most cars with the torque to do this were big block V8s pulling mid-13 second or better q-mile times.

The high revvers won't hold the wheelspin if you try to start in 2nd.

01-26-2006, 10:07 PM	#1
RadM5 Private 17 Rep 81 Posts Drives: 2014 M5 Competition Join Date: Nov 2005 Location: O.C. iTrader: (0)	0-60 Why so much variation in the numbers? it seems that if 3-4 runs are done around a certain time...it would be fairly reproducible. 5.6-6.7 is quite a range.
	Appreciate 0 Tweet Quote

01-26-2006, 10:13 PM	#2
shimshimhada Brigadier General 445 Rep 4,838 Posts Drives: Portal Join Date: Jul 2005 Location: Portal iTrader: (2)	Factors, many, many factors.
	Appreciate 0 Quote

01-27-2006, 12:37 AM	#6
JamieA Colonel 93 Rep 2,168 Posts Drives: G01 X3 M40i Join Date: Sep 2005 Location: Adelaide, Australia iTrader: (0)	What Shim and DTm both said... and I will add "mechanical sympathy" to that list. Some testers drive it like they stole it, some have a policy of treating cars like their owners would in order to get more real-world times... __________________ '05 E90 325i \| '06 E90 325i \| '08 E90 325i LCI \| '13 F30 328i M-Sport \| '14 F10 535d M-Sport Current: '19 G01 X3 M40i
	Appreciate 0 Quote

01-27-2006, 12:43 AM	#7
lux.sh missing two turbos. 581 Rep 4,859 Posts Drives: fast around corners. Join Date: Sep 2005 Location: Curves iTrader: (12) Garage List 2006 BMW E90 330i [0.00]	mag racing no good. __________________ 06 AW E90 330i ZPP/ZSP/Step/Expired Warranty : Prior Design Front : ACS Rear : ACS Roof : BlackLines : Simota Intake : Carbon Fiber Interior Trim : : MTEC V3 : 24% Charcoal : V1 Hardwired : Solaris Invisibulbs/LED interior :
	Appreciate 0 Quote

01-27-2006, 12:48 AM	#8
RyBMW Major 78 Rep 1,038 Posts Drives: X5 Join Date: Jun 2005 Location: NYC iTrader: (1) Garage List 2012 BMW X5 [0.00] 2008 335i [0.00]	The driver has a big factor on the 0-60. If you can't drive the car.... __________________ New: 12 X5 xDrive35i Premium Alpine White/Cinn Brown Old: 08 E92 335i\|Space Gray/Coral Red/Gray Poplar Old: 06 E90 330i\|Black Sapphire/Black /Burl
	Appreciate 0 Quote

01-27-2006, 02:09 AM	#9
rss Private 8 Rep 69 Posts Drives: 320dSE Touring E91 Join Date: Jan 2006 Location: Cambridge UK iTrader: (0)	Is it true for a manual that the way to obtain the best 0-60 time is to start with the car in 2nd gear ?
	Appreciate 0 Quote

01-27-2006, 07:12 AM	#11
stressdoc Moderator 620 Rep 10,858 Posts Drives: BMW i8; Toy 4runner TRD pro Join Date: Jun 2005 Location: Waco TX iTrader: (0)	Never in a BMW. 1st will always be quicker. Some folks find it easier to negotiate slippery conditions (ice) by starting in 2nd. The slowest 0-60 times are for automatics loaded with options tested under 'normal' driving conditions (Edmunds). The fastest times are Euro model manuals tested under 'hot-rod' techniques (Car&Driver). Driver is not usually a big factor in magazine comparos -- just what starting/shifting techniques the magazine tries to keep consistent. E.g., Car & Driver prides themselves on being hotshoes, and usually post times that are a 1/2 sec or so quicker than Road & Track. Last edited by stressdoc; 01-27-2006 at 07:57 AM..
	Appreciate 0 Quote

01-27-2006, 07:50 AM	#12
davinet78 Lieutenant Colonel 28 Rep 1,832 Posts Drives: bmw e90 320d Join Date: Jun 2005 Location: gibraltar(europe) iTrader: (0) Garage List 2005 bmw 320d E90 [0.00]	the main factor is the driver __________________ e90 320d,arktis,lumber support, hifi speaker, alarm, dakota beige, 162 18", xenon with washer spray,window chrome trimmings, professional radio, 6 cd changer wood trimmings 6 speed manual.
	Appreciate 0 Quote

01-27-2006, 07:57 AM	#13
rss Private 8 Rep 69 Posts Drives: 320dSE Touring E91 Join Date: Jan 2006 Location: Cambridge UK iTrader: (0)	I can't remember where I read it. At the time I had an E36 M3 Evo and it may have been one of the bmw magazines that suggested 0-60 in 2nd gear (as it will easily hit 60 in 2nd).
	Appreciate 0 Quote

01-27-2006, 08:01 AM	#14
stressdoc Moderator 620 Rep 10,858 Posts Drives: BMW i8; Toy 4runner TRD pro Join Date: Jun 2005 Location: Waco TX iTrader: (0)	Keeping it in 2nd (maybe even redlining it), yes. Starting in 2nd? Bizarre. The M3 Evo loves revs, so unless you could get (and keep!) the tires spinning sufficiently to keep it in the powerband, it would bog compared to launching in 1st. You can do an effective start in 2nd in a Corvette, but not a 3-series. Last edited by stressdoc; 01-27-2006 at 03:02 PM..
	Appreciate 0 Quote

01-27-2006, 08:02 AM	#15
Robin_NL S0THPAW 8784 Rep 7,853 Posts Drives: HS M2 Competition Join Date: Apr 2005 Location: The Netherlands iTrader: (0)	Always use 1st gear for those 0-60 times. (First put DTC totally off)On a dry tarmac road put it in first, rev it to about 3000rpm. 'Dump' the clutch and hit the throttle with 'some wheelspin' you 'll feel, then @ 6600rpm shift as fast as possible to second and do the same again:slam the throttle At 6600 shift again etc etc. Disclaimer, be careful and don't bring yourself or others into danger I'm no streetracer
	Appreciate 0 Quote