doug_999

Let's not forget that the new 335 makes its max torque starting at only 1,400 RPM. That's really low and so the car should scoot off the line really well.

znod

Hi Gang:

See post #65 here. The post contains some test data for the 550i, etc. I'll nose around and see if I can find anything new--on either car being discussed.

UUronL

The US 0-60 published time for the 335i is 5.3. That is slower than the M3, which is listed at 4.8 by BMWNA. With that said, I would expect the 335i like all BMWs, to do better than the quoted speeds.

5.3 is certainly on par with the 550i which is listed at 5.4 for both the manual and the SMG. 5.5 is listed for the Step.



With all due respect to Jiio, I don't agree that the discussion should be limited to stock configurations. The people you would run into on the road... the ones who would be inclined to race you will likely all have tuner mods. These mods will certainly add horsepower increases that the naturally aspirated cars simply cannot match.


As others have stated, the 335i can easily be a 400hp car. Looking at a similar twin-turbo configuration - the previous-gen S4 was able to add 100hp without breaking a sweat. Much more was possible as well. I've owned and modded several turbo cars. It's all bolt on stuff - very straightforward, and very effective. The tuners in the US will go nuts with this thing.


I also believe that a modded 335i will run with stock E92 M3s, and depending on how effective M3 mods are, it may be fairly even with modded cars as well save for ones with heavy internal engine work and/or turbo/superchargers.


Have you all seen Car and Driver's thorough 4 page writeup on the new 3 coupe?

http://www.caranddriver.com/carnews/10753/...s-and-info.html

mrbelk

Generally, I would expect the 335 to be a better all-around performer than the 550, simply based on weight, power to weight, weight distribution, size, polar moment of inertia, etc.

FWIW, on another forum dedicated to E90's, these stats were posted for the "standing 1000m":

e46 m3 smg/manual :24.2s
e92 335i manual : 24.5s
e92 335i auto : 24.6s
650i auto 24.5s
E60M5 22.7s
E63M6 22.6s

The thread is here: http://www.e90post.com/forums/showthread.p...hlight=standing

This, in conjunction with the inherent "tossability" advantage of a 3er over a 5er, would tell me that the 335 will be a very competent machine. I am very excited about the possibility of a 335i sedan.

-MrB

needforspeed

Based on theoretical power to weight calculations from www.letstorquebhp.com for 'stock' cars with manual transmission we should expect something like this:

550i

Power at Flywheel (BHP) : 367
Weight without Driver (KG) : 1735
Power to Weight Ratio (BHP Per Ton) : 214.92
0 - 60 (Secs) : 5.19
0 - 100 (Secs) : 11.75
60 - 100 (Secs) : 6.56
Quarter Mile (Secs) : 13.42
Terminal Speed (MPH) : 106.89
Drag Strip Quarter Mile (Secs) : 13.32
Drag Strip Terminal Speed (MPH) : 108.08

335i

Power at Flywheel (BHP) : 300
Weight without Driver (KG) : 1620
Power to Weight Ratio (BHP Per Ton) : 188.16
0 - 60 (Secs) : 5.79
0 - 100 (Secs) : 13.93
60 - 100 (Secs) : 8.15
Quarter Mile (Secs) : 14.09
Terminal Speed (MPH) : 100.54
Drag Strip Quarter Mile (Secs) : 13.99
Drag Strip Terminal Speed (MPH) : 101.67

These calcs ignore gear ratios and power / torque curves so they are flawed, but surpisingly accurate.

I think the 550i is going to be quite a bit quicker based purely on BHP / Tonne.

Edited to include e46 M3 CS:

Power at Flywheel (BHP) : 343
Weight without Driver (KG) : 1570
Power to Weight Ratio (BHP Per Ton) : 221.98
0 - 60 (Secs) : 5.06
0 - 100 (Secs) : 11.65
60 - 100 (Secs) : 6.59
Quarter Mile (Secs) : 13.32
Terminal Speed (MPH) : 106.90
Drag Strip Quarter Mile (Secs) : 13.22
Drag Strip Terminal Speed (MPH) : 108.11

cobradav

You'll note that there is a major discrepancy in the BMW 0-60 assertions compared to your calculated figures of nearly 0.5 sec for the 335i. The others are off only by 0.2 sec or so. I believe there are other factors in play here. If you go to the E90 board and look at the data they are gathering you find a pretty startling torque curve for this TT engine. You might also note (probably in another thread over there) that we have now determined a forced induction boost or approximately 8.52 psi leading some to postulate that there is certainly room to "play" with the tuning. Overall a pretty sweet car and I think a harbinger of even greater things to come soon (3-4 years) in new engine offerings from BMW.

BetterMakeWay

Yes, but that low rpm levels show only the flexibility of the engine. In a drag race, the actual rpm range used should be well over 4500rpm.
Off topic: this engine revs pretty high say like the E63 AMG engine....

So in the end on a drag race after all it stays like this: M3 faster (slightly) than 550i wich in turn is almost equal than the E92 335i (in the last case being more of a driver's race).

needforspeed

Well you and znod are the guys in the know when it comes to straight line performance

BMW UK have the piccies on their site and I just e-mailed them for some more info on the 335i.

swajames

Well, unlike the 545/550 vs 535d "test" which we've never quite managed to successfully set up, this one is going to be pretty easy to arrange! At the end of the day, though, it's all conjecture until we've got a 335 in the raw and seen some of the real world stats. Certainly going to be close, but at the end of the day they are totally different cars aimed at totally different buyers. Can't fling a 550 round like you'll be able to fling a 335 but you won't get the whole family, two week's groceries and the golf clubs in the 335 and still be just about as quick....

UUronL

I hadn't delved that deeply into the info... thanks for the snapshot. Sounds like this engine really is a winner. Only 8.52 psi? That's nothing - that can easily be doubled - maybe quadrupled. Quite a few normal and mundane German engines of recent manufacture have been able to withstand 2 bar of pressure.