byPublished on 02-23-2010 05:07 PM
The BMW N55B30 represents the current workable technical edge of gasoline engine performance and economy. It is a state-of-the-art powerplant available in the 535i GT and soon the 535i from BMW. It is possible, that before long the N55B30 will supplant the N54B30 in BMW’s entire lineup.
To gain a better understanding of the technical advances contained in this engine, it is necessary to develop a simple example of a gasoline Otto cycle engine. This will be used to help explain the benefits of the technology contained in the N55B30.
Consider, for example, a simple stationary engine. It is designed to run at peak torque. The engine must start and then quickly hit its optimum RPM. The air/fuel mixture is restricted for starting (for which the amount of fuel to air is increased). This will ‘light’ the engine off and, once started, the restriction or ‘choke’ can be removed. From here, the throttle is moved to provide operation at the optimum RPM. There isn’t much more to it than that. In addition, the valve timing is optimized for the single RPM requirements of the engine.
Now, depending on the method with which the air/fuel mixture is introduced to the engine, the performance and ...byPublished on 02-22-2010 03:14 AM
Audi is out the change the game, of course, with the new RS5. So, let’s take a look at the specifications that have been taken from the “accidentally leaked” brochure of the upcoming Ingolstadt warrior. The wide-bodied two door is anticipated to sport a modified version of the V8 of the now defunct RS4. So, the car will be powered by a 4.2L V8 pushing out approximately 450HP – a full 30HP over the B7 RS4 and the V8 model of the R8 sportscar – coincidentally, about 30 horsepower over the 4.0L V8 of the M3.
...byPublished on 02-17-2010 12:33 AM
"BMW has done a lot of work over the past year to bring its core philosophy of Efficient Dynamics to nearly every vehicle in its lineup. We've seen new hybrid production vehicles like the ActiveHybrid X6 and 7, as well as diesel-powered offerings like the 335d and X5 xDrive35d.
But for BMW, Efficient Dynamics doesn't just represent alternative fuels. The automaker has implemented technologies like regenerative braking on gas-powered models, as well as a larger focus on using lightweight materials to construct the vehicles in its lineup.
BMW's latest ad spot shows how these forward-thinking improvements influence its full range of products, and ties it all into the original Vision EfficientDynamics concept car from last year's Frankfurt Motor Show. (We really like seeing that thing in action.) Hit the jump to watch the video."
I think BMW has definitely upped the game in terms of luxury hybrid vehicles. Their ...byPublished on 02-13-2010 08:14 AM
Ground Control is now experimenting with a modified coilover 'conversion kit' for E9x M3's that actually retains the factory-installed OEM EDC shocks and struts. (which is your only option if you want to keep the factory EDC adjustability intact)
GC is using a threaded height adjustable collar that is fitted to the body of the front strut housing. Their coilover conversion kit will use linear springs. (not progressive springs like the OE and aftermarket alternatives)
Very soon, we will know how well this innovative design concept actually works in real world driving conditions. (on the street and the track)
...byPublished on 02-10-2010 11:47 PM
We are pleased to announce that Powerchip will be giving away a tune for an M3 (E46,E9X), Z3/Z4 S54 M roadster/coupe, M5 (E60), or M6 on BimmerBoost.com
The tune will be raffled off in a random drawing here: http://www.bimmerboost.com/showthrea...-tune-giveaway!
In order to enter, all that is required is for the person entering to post pictures of the M that will be receiving the tune
in the media section. Then, post that link in this thread to automatically be entered. If you do not have one of the M's mentioned, you are not eligible to win the tune preventing someone from entering solely for later resale. One entry per M vehicle. USA and Canada only, raffle ends March 31, 2010.
E60 M5 and E61 M6:
...byPublished on 02-10-2010 05:40 AM
I had to laugh at this thread when I read it on the other forum.
I would respond but since I'm banned for not being an ESS fan boy I can't. Oh well I do find it funny how PencilGeek steps in to make the rules and tries to determine whats a valid test and what isn't
Look at his first response. Please someone help me understand wtf is so bad about a custom tune that it's invalid or "meaningless" and why it shouldn't be included in the test. Imo all the test should be done same day, same conditions, same machine and same cars but the two companies should be allowed to tune to the BEST of their ability. If one company can't get more power out of a custom tune then the other companies off the shelf tune oh well then thats too damn bad thanks for playing. I don't think they should be limited to what they can't bring to the table I say " run what ya brung " and of course they should be compared with the AFR's and other parameters to ensure safety. But we know whats gonna happen a dissagreement in what makes a safe tune and what makes an unsafe tune lol. Either way I think its a fun idea minus the restriction. Whats ur thoughts folks?byPublished on 02-08-2010 05:31 AM
To introduce ourselves formally to the n54 community we have decided to give away some great products as a way to support this forum and ultimately the n54 gear heads.
First I would like to thank the admin of this site - you guys are doing the n54 platform a HUGE service!
Contest page: http://bimmerboost.com/showthread.ph...npipes-and-BOV!!!
...byPublished on 02-08-2010 12:06 AM
So just wanted to say a lil something and check in with people, especially people interested in supercharging their M3.
In the last week i have done alot of hard driving, i am also at 17,500 miles on my car and installed the Gintani kit at 12,000 miles, so got 5,500 miles on car, lots of dynos, canyon runs, track, drag.
- Last sunday hit the famoso drag. The car performed flawlessly. There was one DCT limp mode and it only lasted for about 20-30 sec...was doing multiple runs in a row on street tires at first and spinning tires ALOT, hit redline in first and second..light came on...rolled down strip and halfway down it the light went off. When the light came in, pretty much the tranny disengaged,so if i hit gas no power was transfered to the transmission. when light came back on car was fine. So after each run i would drive the parking lot for less than 1min then go do next, problem never happend again. And in my opinion it is a good thing that it does that, obviously at the drag tranny get worked hard so its just keeping itself safe.
...byPublished on 02-04-2010 05:06 PM
I had the day off and took the opportunity to visit cp-e again. I have their BOV and charge pipe and asked Josh to order me another top for the TIAL bov. When I got there Josh showed me their prototype FMIC. He said they're in the process of finishing the first ten units
...byPublished on 02-04-2010 01:47 AM
Gentlemen, to show our appreciation for the members of our BMW performance forum and commemorate its launch, Burger Motorsports: http://www.burgertuning.com in collaboration with BimmerBoost will be giving away a JB 3 tune and Dual Cone Intake for the N54 to one lucky winner. This is for the N54 powered 135, 335, 535, Z4, and X6.
What do you have to do to enter the contest? Simply guess how much wheel horsepower this supercharged BMW M3 will put down on a dynojet: http://bimmerboost.com/showthread.ph...rd-Fastest-E9X
...byPublished on 02-02-2010 08:44 PM
Q: “Why won’t BMW NA bring the M3 GTS to the United States?”
LK: When I first started discussing the GTS with M in Garching [Munich], I knew it could be a hit in the US, albeit most likely a short-lived hit given such a high price [110,000 Euros before US homologation]. However, when taking a closer look, we realized the car does not pass any EPA or federal safety standards. Those are two big catches for importing a new BMW, even in small volumes. Modifying the GTS to make it US-compliant would be a very costly affair because the car lacks airbags, proper DOT seatbelts, proper bumper height, etc. And those are just the safety items. Keep in mind the 4.4 liter engine is not homologated for the US which would require more than a simple set of racing catalysts [as the car is currently equipped].
Q: But couldn’t those things be added to a US version of the GTS?
LK: I’m sure they could, but you have to balance cost against demand. In this case, the customers we speak to on a regular basis are indicating that they’d rather purchase ...byPublished on 02-02-2010 05:46 PM
I don't mind you posting the previous graph or this one. Just make sure you stipultae that the last graph was on 18psi 100octane/meth, and this one is 18psi 93 octane/meth. As I said before our 538whp run was done @ 20psi 100octane/meth.