how will it be faster if manual 335i Coupe is as fast as IS350.

You think Automatic 335i Sedan will be faster than 335i Coupe 6 MT?

 

except that turbo's dont have constant powerband :-).
Check IS350's dyno's to see what constant powerband looks like.

335i's powerband looks like bumpy line drawn by 1 yr old kid.

 

Automobile now includes a link to the dyno *video* on that page. Check it out.
http://www.automobilemag.com/multime...bmw_335i_dyno/

 

Yeah and to make up for the loss of power at high altitudes you have to run higher boost in return. Ever think about that? . Higher boost = higher EGT's if the intercooler is not up to par or you don't have higher octane fuel or if you're not running any kind of methanol/water injection...which as I think I said above...in this case the intercooler will be designed for more flow to lessen any kind of lag as opposed to cooling efficiency coming first. OH AND HIGHER EGT's = engine go BOOM!. So I wouldn't say you've K.O'd me . There will be a less loss in power compared to the IS, but it doesn't mean that there will be NO loss in power .

Also as I said the size of the Turbo's are VERY small, unless they are using some 100 year advanced futuristic material/turbine technology, so in order to get that no loss of power at higher altitude they'll have to run more boost, which I doubt those little peashooters can do efficiently, and if they can run higher boost they'll be just pushing hot air. Also Turbo's aren't the only thing in a turbo-charged application that determine the lag/power/etc, the intercooler, boost, wastegate, mapping of the ecu/boost all play a factor . Also tell me this, if turbo-charged cars loose next to no power at higher altitudes, why is there a 1/4 mile difference between high and low altitude runs? Why do people prefer lower altitude runs for better 1/4 mile times?

Don't get me wrong I've nothing against BMW's as I think their Turbo Diesel I6 is an excellent feat for a high powered diesel motor topping out at 155mph with the potential for more.

 

Did you read my post at all?

The real world improvement in fuel economy brought about by the various derivatives of GDI used in production cars today can be measured in single digit percentage points - that's it. As such, an average gain of 2-3 mpg out of this technology would be about right, possibly even optimistic.

I wrote an entire paragraph on this sub-topic in my last post and you apparently ignored it.

Passing performance (known in Europe as "engine flexibility") implies acceleration in a cruising gear at low-to-medium engine speeds, i.e. 2000-4000 rpm - and 4000 rpm would generally be considered the upper limit. Under these circumstances, it doesn't matter what the engine can do at 5000-6000 rpm. Even so, don't forget that the 335i is still making the same amount of peak hp as the IS350, even if the torque output is tapering at higher engine speeds.

You're the one who was just telling me that horsepower doesn't matter as much as actual acceleration. For a number of reasons, the new ZF transmission in the 335i allows it to accelerate as quickly as the manual does. There's almost no difference in performance between the two, per BMW's own published numbers (namely the 0-1000 m time they gave us a couple months ago). So, given that the manual and automatic are equally fast across the board, that means the automatic 335i will be just as fast as the automatic IS350. I'm not going to repeat myself again.

The IS350 is rated at 21/28 in the EPA cycle. The 330i is rated at 21/30. We already have the European fuel consumption figures, but these don't translate properly (even once the units are converted) because their testing methods differ from those used by the EPA. By all accounts, the 335i should be good for the same 21/28 that the IS350 does, perhaps slightly worse (20/27, maybe).

Regardless, this is splitting hairs. None of these cars are particularly fuel efficient; 28 mpg on the highway is nothing to brag about. My six year old E46 does that and more (I can easily manage 31-32 mpg with a fresh fuel filter and light cargo load - this with a five speed trans and relatively short gearing!).
I'm sorry - while I agree that the 2GR-FSE is an impressive piece of engineering, this is still an absolutely asinine comment. BMW builds some of the finest naturally aspirated engines in the world - the Sxx engines in particular speak for themselves. BMW had a 3.6L six pot (the S38B36) that made 315 hp and 269 ft-lbs of torque twenty years ago. They didn't just "resort" to turbos in order to match the output of the VQ35 and 2GR-FSE. I don't know why they decided to experiment with forced induction, but they did, and this is the result.

I'll be honest with you - I don't know why I'm bothering with this debate, other than the fact that I love technical discussions. I don't really like the IS350 or the 335i all that much; in my eyes, both are fat, boring luxo-cruisers designed to appeal to yuppie badge wh0res. I'm still waiting for Lotus to build a sedan...

 

And that was without all the technology and gadgetry they have today. An E34 M5 routinely will put 265-280hp to the wheels. Oh, and it is one of the sweetest sounding engines this side of a Ferrari.

 

http://www.e90post.com/forums/showth...9&page=1&pp=22

335 mpg, in the big table of post #1, I think it might be in imp gallons

also the engine has been confirmed to run on 8.52 psi of boost which is disappointing to me, as the N/A version of the 3.0 made 255ish, 5-6 psi shouldve easily cranked it to 306, not almost 9 psi, oh well

I looked down and someone did a conversion, its still a UK metric to US standard conversion but its still not based off a US spec 335, bad city mileage as to be expected from a turbo engine, hwy is surprisingly good

 

How can it be better than even the 330i's highway mileage? Kind of odd to me.

 

Not so sure about the unit of measure they used in the article, but technically the 335i can get better mileage than the 330i with different gear ratios.

 

335 torque curve is somewhat like a diesel, weak top end very strong low end to mid, if the gear ratios were set so hwy cruising 6th gear would be around the area of max torque then it will get pretty good hwy mileage

 

i very much doubt it, since article mentioned strong performance in top gear, much faster than 330i... which means its definetly not too long.

 

well, obviously problem with that is that you still have turbo's taking that fuel :-).

It is only slightly similar to diesel - they have much bigger turbo's, so spikes are much, much bigger and band is narrower.

In fact diesels have most advanced turbos available. New generation diesels have electric powered turbo's, instead of exaust gas powered turbos. They are able to control them much better, getting more performance and mpg at the same time... it is also more expensive of course..

 

Dont know how true this is, but I have read that it is from a very reliable source. We shall see...



E90post.com

 

2007/2008 BMW M3 (E92) pricing leaked?
Multiple BMW chat forums and Leftlane News readers are reporting that BMW North America has given dealers preliminary pricing details for the 2007 BMW M3 coupe. The car is expected to make its official debut before the end of the year — possibly at the Paris Motor Show in September. If the data is to be believed, it would position the M3 about $10,000 above the new 335i coupe. Base U.S. price is listed at $53,975 with a 4.0-liter, 412 horsepower V8 engine, putting down 310 pound-feet of torque. A carbon fiber roof, 18" wheels, and adaptive headlights are also listed as standard equipment. Purchasers will be able to chose between a SMG III and six-speed manual transmissions, with neither costing more than the other. While LLN can not independently verify this information, one possible reason for its early release to dealers could be in order to enable pre-orders for what is sure to be a hot-seller.



http://www.leftlanenews.com/2006/08/...ricing-leaked/

 

that's awesome news! 54K for V8 M3 is awesome price!