Why Is The M3 Heavier Than The 335?

rzm3 · 10-04-2008, 11:14 PM

Quote:

Originally Posted by GnokGnik

Does anyone have the power/weight ratio's of the 335i and m3 handy?

so lazy people

M3: 414hp/3704lb=0.11hp/lb
335i: 300hp/3571lb=0.084hp/lb

Source: bmwusa.com, manual transmission. Specifications are subject to change without prior notice.

sayemthree · 10-05-2008, 02:46 AM

Quote:

Originally Posted by rldzhao

so lazy people

M3: 414hp/3704lb=0.11hp/lb
335i: 300hp/3571lb=0.084hp/lb

Source: bmwusa.com, manual transmission. Specifications are subject to change without prior notice.

PLUS some peeps here have wieghed the 6 MT M3 with CF roof at close to 3600. thus its only 29 pounds more. (tires, wheels, brakes, engine and exhaust)

badfish · 10-05-2008, 03:07 AM

Quote:

Originally Posted by sayemthree

PLUS some peeps here have wieghed the 6 MT M3 with CF roof at close to 3600. thus its only 29 pounds more. (tires, wheels, brakes, engine and exhaust)

Was this on a bathroom scale?

footie · 10-05-2008, 03:10 AM

Quote:

Originally Posted by sayemthree

PLUS some peeps here have wieghed the 6 MT M3 with CF roof at close to 3600. thus its only 29 pounds more. (tires, wheels, brakes, engine and exhaust)

The offical weight in the UK is 3641lbs for a stock car, though some mags have put it to the test and found them to be under this.

Deda · 10-05-2008, 04:54 AM

Quote:

Originally Posted by badfish

All the extra weight is in the balls...

cool!

cablesurge · 10-08-2008, 03:47 AM

The M3 would be lighter if the 335 was carrying a full tank of gas.

valeram · 10-08-2008, 02:28 PM

Just the M-Diff (not dick) LSD and bigger brakes (not ball) are substantial weight increase.

lucid · 10-08-2008, 06:03 PM

The weight difference between the two cars stock vs stock is more like 60lbs. I have a car and driver at home; they weighed the cars on the same day. The M3 does not weigh 3700 without passenger. It weighs around ~3570 lb. I weighed mine at the track with a little over half tank of gas at 3495 lbs (after removing all the stuff in the trunk).

mkoesel · 10-08-2008, 06:55 PM

^^^ That's encouraging lucid. Maybe my car doesn't weigh 4100 lbs after all.

I still don't understand why BMW has the weights listed so far apart.

RichardTS · 10-08-2008, 07:33 PM

Quote:

Originally Posted by mkoesel

Yes.

Turbos are nothing compared to two extra cylinders, even if the cylinders are aluminum.

Strax · 10-09-2008, 07:23 AM

The listed weight includes 68 kg for driver, 7 kg for luggage and 90% full fluids.

lucid · 10-09-2008, 07:39 AM

Quote:

Originally Posted by Strax

The listed weight includes 68 kg for driver, 7 kg for luggage and 90% full fluids.

Yes, but that doesn't explain why there is such a large difference between the listed weights for the two cars, whereas in reality, there isn't.

kbk_75 · 10-09-2008, 02:38 PM

What are you guys on about? Have you not taken into consideration the added weight that each M badge carries?!

sayemthree · 10-09-2008, 03:03 PM

Quote:

Originally Posted by kbk_75

What are you guys on about? Have you not taken into consideration the added weight that each M badge carries?!

LOL!!!!

BMW is very conservative with wieghts on the M cars. prolly a fully loaded with MR and dealer added options.

valeram · 10-10-2008, 10:58 AM

Quote:

Originally Posted by kbk_75

What are you guys on about? Have you not taken into consideration the added weight that each M badge carries?!

They should use CF for all the M badges.

sayemthree · 10-11-2008, 01:05 AM

Quote:

Originally Posted by valeram

They should use CF for all the M badges.

YES!!! dont you know CF is anti-wegiht - its so magical it adds lightness.

graider · 11-28-2008, 03:32 PM

actually didn't someone weight a base e46 m3 at 3200 pounds? The e46 m3 is lighter even bmw listed it at around 3400 pounds.

kronzprinz · 11-28-2008, 03:56 PM

My M3 weighs 3700 but that's because of MY balls... LOL !!!

ZoinksM3 · 11-28-2008, 03:56 PM

The larger fuel tank is probably a contributor.

E90ice · 11-28-2008, 04:01 PM

Quote:

Originally Posted by badfish

All the extra weight is in the balls...

Certainly not in the brains....

MrHarris · 11-28-2008, 05:54 PM

C&D weighed the car at 3571

jbrucebmw · 11-28-2008, 06:39 PM

Yes, the BMW quoted vehicle weight is greater than most cars weigh without the driver but this is true for both the M3 and 335i. You can also feel the extra weight in the handling and steering despite the M3s superior suspension and tires. The real problem when you start comparing the M3 to the 335i is the torque / weight ratio.

M3 Sedan 12.6 lb /lb-ft torque
M3 Coupe 12.6 lb / lb-ft torque
335i Sedan 12.0 lb /lb-ft torque
335i Coupe 11.9 lb /lb-ft torque

The issue is even more pronounced when you consider that BMW has substantially underrated the 335i engine--not the case in the M3. As automobile mag and several other dyno tests have found, the 335i is actually closer to 350-360lb-ft of torque.

This makes it:
335i Sedan ~10 lb /lb-ft torque
335i Coupe ~10 lb /lb-ft torque

The 335i is caring around ~2lb less per lb-ft or torque than the M3!

This explains why the M3 does not feel as quick off the line compared to the 335i. The M3 needs a diet. :-(

JB

10-08-2008, 03:47 AM	#28
cablesurge New Member 0 Rep 13 Posts Drives: Bmw E92 Join Date: Mar 2008 Location: Singapore iTrader: (0)	The M3 would be lighter if the 335 was carrying a full tank of gas.
	Appreciate 0 Quote

10-08-2008, 02:28 PM	#29
valeram Major 37 Rep 1,413 Posts Drives: 992 TTS, 991.2 GT3 T, F80 M3 C Join Date: Oct 2006 Location: Dublin, OH iTrader: (0)	Just the M-Diff (not dick) LSD and bigger brakes (not ball) are substantial weight increase.
	Appreciate 0 Quote

10-08-2008, 06:03 PM	#30
lucid Major General 374 Rep 8,033 Posts Drives: E30 M3; Expedition Join Date: Apr 2007 Location: USA iTrader: (0)	The weight difference between the two cars stock vs stock is more like 60lbs. I have a car and driver at home; they weighed the cars on the same day. The M3 does not weigh 3700 without passenger. It weighs around ~3570 lb. I weighed mine at the track with a little over half tank of gas at 3495 lbs (after removing all the stuff in the trunk). __________________
	Appreciate 0 Quote

10-08-2008, 06:55 PM	#31
mkoesel Moderator 7510 Rep 19,370 Posts Drives: No BMW for now Join Date: Jun 2006 Location: Canton, MI iTrader: (1)	^^^ That's encouraging lucid. Maybe my car doesn't weigh 4100 lbs after all. I still don't understand why BMW has the weights listed so far apart.
	Appreciate 0 Quote

10-09-2008, 07:23 AM	#33
Strax Enlisted Member 0 Rep 40 Posts Drives: E46 M3 Join Date: Dec 2007 Location: Athens, Greece iTrader: (0)	The listed weight includes 68 kg for driver, 7 kg for luggage and 90% full fluids. __________________ www.bmw-motorsport.gr
	Appreciate 0 Quote

10-09-2008, 02:38 PM	#35
kbk_75 Lieutenant 24 Rep 404 Posts Drives: Alpine White E92 M3 Join Date: Nov 2007 Location: Bombay, India iTrader: (0)	What are you guys on about? Have you not taken into consideration the added weight that each M badge carries?!
	Appreciate 0 Quote

11-28-2008, 03:32 PM	#39
graider Colonel 35 Rep 2,406 Posts Drives: py/kiwi e46 m3 Join Date: Aug 2007 Location: toronto iTrader: (0)	actually didn't someone weight a base e46 m3 at 3200 pounds? The e46 m3 is lighter even bmw listed it at around 3400 pounds.
	Appreciate 0 Quote

11-28-2008, 03:56 PM	#40
kronzprinz Second Lieutenant 7 Rep 286 Posts Drives: 2008 M3 Join Date: Jun 2005 Location: EASTCOAST iTrader: (0)	My M3 weighs 3700 but that's because of MY balls... LOL !!!
	Appreciate 0 Quote

11-28-2008, 03:56 PM	#41
ZoinksM3 Private First Class 9 Rep 114 Posts Drives: E90 DCT M3 Join Date: Aug 2008 Location: Irving, Tx iTrader: (0)	The larger fuel tank is probably a contributor. __________________
	Appreciate 0 Quote

11-28-2008, 05:54 PM	#43
MrHarris yodog 197 Rep 5,026 Posts Drives: '86 Corolla Join Date: Jun 2007 Location: Diamond Bar, Ca iTrader: (5) Garage List 2009 BMW [10.00]	C&D weighed the car at 3571 __________________ 2009 E92 M3 \| Alpine White \| Black Extended \| Advan RS \| Turner Test Pipes \| Dinan Axle-Back \| OETuning \| Eibach Springs \| UUC SSK \| VRS Front Lip \| VRS Type I Diffuser \| Matte Black \| RPi Scoops \| MS Filter \| Yokohama AD08 \| F1 Pinnacle Special Thanks: Gintani \| OETuning \| eAs
	Appreciate 0 Quote

11-28-2008, 06:39 PM	#44
jbrucebmw jbrucebmw 10 Rep 159 Posts Drives: 09 M5 95 M3 85 M635CSi... Join Date: Apr 2007 Location: Los Angeles \| Newport Beach iTrader: (0)	Yes, the BMW quoted vehicle weight is greater than most cars weigh without the driver but this is true for both the M3 and 335i. You can also feel the extra weight in the handling and steering despite the M3s superior suspension and tires. The real problem when you start comparing the M3 to the 335i is the torque / weight ratio. M3 Sedan 12.6 lb /lb-ft torque M3 Coupe 12.6 lb / lb-ft torque 335i Sedan 12.0 lb /lb-ft torque 335i Coupe 11.9 lb /lb-ft torque The issue is even more pronounced when you consider that BMW has substantially underrated the 335i engine--not the case in the M3. As automobile mag and several other dyno tests have found, the 335i is actually closer to 350-360lb-ft of torque. This makes it: 335i Sedan ~10 lb /lb-ft torque 335i Coupe ~10 lb /lb-ft torque The 335i is caring around ~2lb less per lb-ft or torque than the M3! This explains why the M3 does not feel as quick off the line compared to the 335i. The M3 needs a diet. :-( JB __________________ jbrucebmw BMW CCA LA & GGC 09 M5 \| 08 E90 M3 \| 95 M3 3.2 \| 85 M635CSi \| 73 2002tii
	Appreciate 0 Quote