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Comments
thanks,
mike
The 325 has enough hp for me. I could do with less really, given all the tickets I've been getting. Or, you could just give in and get the new 400+ hp M3. You won't have any complaints there, unless you start comparing the M3 & M5.
No offence, but if you friend works in the service department, he should know better. Per BMWs literature, the main difference between the two engines is the induction system (a three stage intake manifold on the 330i vs. a single stage manifold on the 325i), having said that, I'm sure that the OBC has different firmware as well. A quick check on the internet and the cheapest single stage manifold for any BMW I6 engine that I could find was over $1,200. Figure over $2,000 (maybe considerably more) for a three stage unit similar to the one found on a true 330i, plus computer upgrades, plus installation, and gee wiz, it costs more than that magic $3,300. Assuming that someone goes that route anyway, do they then have a true 330i? Nope! That car would still be missing the larger and more capable brakes, better wheels and tires, and the larger and more robust transmission (assuming a manual gearbox) among other less important goodies.
Best Regards,
Shipo
Best Regards,
Shipo
Since the exact same numbers are reported for the 3.0 litre US model 325i and the 2.5 litre EURO model 325i, I'm guessing that the US 325i numbers are understated... maybe by a lot... and that the difference between the two 3.0 litre models is possibly a lot less than reported...
Okay.. back to solitaire..
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No offense taken. Thanks for the clarification, as well as your more thoughtful assessment whether a 325 could cost-effectively be converted into a 330 by way of upgrades. Your points are well taken that the differences between the 325 and the 330 are more than just 40hp.
Changing the subject, could you recommend snow tires for the 2006 330i? I have one on order. It's off the production line and awaiting transport. If all goes well, I plan to delivery on Sep 2. I live in NY. I didn't get the Sports Package. So mine will be coming with 245/45-17 all season runflats. Since the car doesn't come with a spare, I suppose that new 3 owners are limited to winter runflats. I've never done the snow tire thing before (and my wife and I have consequently had some difficulties every winter), but I'm inclined to start doing it from this winter (which may mean that it will never snow again). Do you know if BMW dealers will store the off-season set of tires for their customers, and if so, do they charge for that? Do you know how much BMW dealers charge for changing tires from summer to winter or vice versa?
Best regards,
David D
That's not a fair argument, shipo. First of all, there's a 6,000 difference between a 325 and a 330. Secondly, people have been discussing a software upgrade, not an intake upgrade.
A perfrormance chip (for the e46) from dinan is $400. If someone wants a low-cost (base 325i) BMW with more than the low 184 lb-ft, and doesn't mind challenging the warranty, this seems a reasonble option.
If you think that the single-stage intake manifole accounts for the entire power difference, well, the old 2.8L didn't have valvetronic, a simpler head, a single stage intake, and it still had a higher specific output.
As far was what dealerships will do regarding swapping and storing off-season tires, I suppose that is up to the dealership. My dealer here in New Hampshire does offer that service, however, since I store and swap my own, I never inquired as to the price.
Best Regards,
Shipo
Sorry, I don't see it that way. Apples to apples, the real price difference is $3,300.
"Secondly, people have been discussing a software upgrade, not an intake upgrade."
I mentioned the intake upgrade simply because that is the main difference between the two engines. All of the software in the world cannot tune the intake charge to the same level of volumetric efficiency as can the tuned intake manifold of the 330i. If you want to match the output of a 330i with a 325i, you're going to have to replace the intake manifold and/or put a blower of some sort (supercharger/turbocharger) on the engine.
"A perfrormance chip (for the e46) from dinan is $400. If someone wants a low-cost (base 325i) BMW with more than the low 184 lb-ft, and doesn't mind challenging the warranty, this seems a reasonble option."
I read a quote from Dinan themselves stating that with the advent of ODB-II, there weren't any real gains that could be had from upgraded software, excepting of course for the re-mapping of the drive-by-wire throttle response, the raising of the RPM limiter and an elimination of the top speed governor, all of which are mere window dressing.
"If you think that the single-stage intake manifole accounts for the entire power difference, well, the old 2.8L didn't have valvetronic, a simpler head, a single stage intake, and it still had a higher specific output."
Per BMW's web site, the old 2.8 liter mill had a two stage intake manifold. I never removed mine from my 328i to take a "look-see", so I'll just have to take their word for it.
In the end, I stand by my previous statements, the real world price difference between a 325i and a 330i is $3,300, and it will cost much more than that to goose a 325i mill up to the power levels of the 330i motor.
Best Regards,
Shipo
Sorry, I don't see it that way. "
Well, ok, you can see it however you want it, but according to BMW's website there's a 6,000 price difference in the cars.
I know you're taking the "equal equipment" tack, but many people may not want xenons, nor be interested in the logic7, yet they may want a power upgrade over the default, as it may be embarrassing to be blown away by chevy malibus.
""Secondly, people have been discussing a software upgrade, not an intake upgrade."
I mentioned the intake upgrade simply because that is the main difference between the two engines."
"Main" difference is open entirely to interpretation.
"Per BMW's web site, the old 2.8 liter mill had a two stage intake manifold."
Really? It's possible, but can i see the link? Otherwise, i worry it may be as accurate as the 3,000 price difference.
"and it will cost much more than that to goose a 325i mill up to the power levels of the 330i motor."
Ah, well, that's redefining the discussion. Low-cost improvement != "equal."
http://www.bmwworld.com/engines/m52.htm states:
"The inlet system was provided with two technical refinements in 1998. One was a flap valve in the inlet plenum chamber that cut off the inlet passages of the front three cylinders from the rear three. The differentiated intake system, known as DISA, optimized the engine's running under full load. The other refinement was a dedicated system of tubes of very small diameters through which the inlet air was drawn during idling or when running at low loads. The increased turbulence that this achieved improved the combustion process and thus reduced exhaust emissions."
Said another way, a two stage manifold.
http://www.machinedesign.com/ASP/strArticleID/56809/strSite/MDSite/viewSelectedArticle.asp- is a link that discusses the 2004 530i, which has an engine which is a direct descendant of the 2.8 liter mill in question states:
"The rear-wheel-drive 530i carries a 3.0-liter in-line six-cylinder engine, boasting a healthy 225 hp and 214 lb-ft of torque. The aluminum powerplant features dual overhead cams, four valves per cylinder, variable-valve timing, and a two-stage intake manifold. A flap mechanism switches between two paths for air entering the engine. One path is tuned for low to medium speeds for improved torque and response, the other for high speeds to maximize top-end power."
http://www.basf.com/businesses/polymers/plastics/pdfs/fischer.pdf contains an undated discussion of the M52 engine that states:
"The resonance flap is located in plenum three. When this flap is closed, it divides plenum three into two halves, thus providing a long runner length for high torque. When the flap is in the open position, only the short runner length from plenum three to the cylinder is provided for high power."
Still don't believe me? Still think you can inexpensively breathe on a 325i so that it will generate 330i like power? All I can say is, "It's you money, do with it what makes you happy."
Best Regards,
Shipo
on another note- how does the runflat monitoring system work in the e90 330i. are there sensors in the wheels? i was wondering because i might put on aftermarket rims on my 330i and curious to see what wheels i would need to get.
thanks.
Got to be as bad as trying to dial a phone.
Also, someone mentioned having to have the iPod's volume all the way up. Biggest problem it created for me was that switching from AUX to Radio sometimes meant a huge leap in volume. But, their is an aux input volume adjustment setting buried in the stereo that resolves this issue.
No need for run flat winter tires if you mount them on separate, dedicated wheels - could use one of regular wheels as spare in the trunk.
My 325 will reach dealer this weekend - can't wait to take delivery.
Press Release:
[snippet #1]
For Release: March 1, 2005
Contact: David J. Buchko
Product Communications Manager
(phone number and E-Mail address deleted per generally accepted TownHall rules)
William Scully
BMW Product Communications Specialist
(phone number and E-Mail address deleted per generally accepted TownHall rules)
NEW 3 SERIES SEDANS:
The icon of sport sedans enters its fifth generation
Woodcliff Lake, NJ – March 1, 2005 The BMW 3 Series, as just about everyone...
[/snippet #1]
[snippet #2]
Additional developments contribute to the new engines’ performance:
• Combustion chambers have been refined.
• BMW’s VANOS variable valve timing has also evolved; the range over which it varies intake-valve timing has been increased by 10 degrees.
• 3-stage induction system (330i engine only). BMW 6-cylinders have long had a 2-stage system, with one intake-path length for lower rpm, the other for higher rpm. By providing an additional “middle” stage, this system further optimizes torque and power delivery.
[/snippet #2]
I happen to have that press release in PDF format (thanks kyfdx), and if anyone is interested, I'll gladly E-Mail them a copy.
Best Regards,
Shipo
I read in a business article the BMW was taking a risk by having both cars come with a 3 L engine. It said that although the 330 came with a 3 stage, it only improved midrange hp and Torque. Also it stated that the old 2005 330 had more hp and torque even though it did not have as many improvements as the new 06 325. All in all it said that the 325 probable could kick up 230 +/- 10 hp if it were tuned the same way as the 330.
It also stated that volvo made a similar mistake in the mid 90's by making 2 turbo 5 cylinders and detuning 1 of them, only to have aftermarket companies crack the code and equalize the cars.
In the long term, they expect the 325 to disapear and have the 330 and the 336 come out. They expect these cars to come out in 2008-09.
So although the engines ARE different, they are not as different as proce shows. German compaines are notious for having big differences in cars. while American companies usually make engine upgrades that are more realistic of the overall cost of the engine. But then again BMW is in a class of its own and can not be compared.
On another note, isn't it a pain to clean those rims, what the best way of doing it? I saw some Dupont Wheel cleaner with Tefelon, anyone ever try it out? Supposed to leave a thin film and prevent the wheels from getting dirty again.
I think one must stay with run-flat winter tires if you want your BMW to run the way it is designed for. The rigid characteristics of the run flat have been calculated into the overall suspension system of the '06 model. If replaced with regular tires, the car may run too soft, I was told by the service manager of the dealership.
Unfortuntly, im finding the 3er has technology far beyond most comprehension.
Maybe in 2007 we can have the option of a real car key,regular tires, no push button start ect...sigh*
DL
Some people wax their wheels after cleaning.. This supposedly makes future cleanings much easier..
I pay someone to do it.. I find writing a check to be the easiest method..
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It would not suprise me at all to get a "soft" feeling car if you went to non-EMTs.
The automakers have been trying to get rid of spare tires for awhile now. It's the wave of the future!
http://www.sik.com/
Supposedly regulates volumes better between the regular stereo and the aux. mode of those stereos.
Hmmm, I'm having a problem with that statement, and the fact that it came from the service manager of a dealership simply means that I'm having a problem with the statement doubly so. The fact is that unsprung weight is one of the most significant issues affecting ride and handling there are. My bet is that to folks that like to track their cars will quickly tire (pun intended) of the extra weight and cost of RunFlats, and opt for GetsFlat tires as replacement sets. I'll also bet that when they do mount those GetsFlat tires, they'll find that they are getting much better track times due to the sharper handling offered by the lighter wheel/tire assembly.
Best Regards,
Shipo
Roger that. The way I look at it, just because a suspension has been designed to deal with the extra weight of the RunFlat tires, that doesn't preclude it from performing even better when the unsprung weight is reduced by putting on GetsFlat tires. Time will tell. ;-)
For my part, assuming that I'll have a car in my garage with OEM RunFlats sooner or later, I'm currently inclined to opt for GetsFlat tires as replacements and stow a can or two of tire goo (spare tire in a can) in the trunk.
Best Regards,
Shipo
http://www.edmunds.com/advice/specialreports/articles/106293/article.html?tid=edmunds.h..t- opfeatures.premiumgas.0.*
Help me Kyfdx and/or Shipo.
I take delivery of my 06 325i on Monday. What will happen if I pump 87 Octane into it......
Premium grade fuel by design burns differently than regular grade fuel. It enables the engine to extract more power using higher compression ratios. While no harmful effects may come from using regular fuel instead of premium.
Why second guess the manufacturers recommendation?
The fact remains, any engine will operate at peak efficiency on some grade of fuel. As you deviate from whatever grade of fuel that allows for said peak efficiency, your power and your mileage will drop. Period, full stop, the end.
In this era of electronic engine controls, it is the rare car indeed that "Requires" premium gasoline, however, sticking with the manufacturers recommendations will keep your engine generating the most amount of power for the least amount of gasoline, which means at full throttle, more power, and at crusing speeds, better economy.
Have I ever used fuel that wasn't recommended? Yup, a couple of times I NEEDED gas and the station that I finally arrived at didn't have the proper fuel, so I took a little of what they had and moved on. Other times, such as driving in high altitude country, premium fuel cannot be has for love nor money, unfortunately I was driving a turbo-charged car and as such, my engine didn't know that the air was thinner, just that the fuel wasn't up to snuff. Let me tell you how annoying it is to have a car that has the ability to shrug off the effects of altitude, assuming premium fuel, and then to have to drive it ever so carfully due to the pinging. :mad: Grrrr!
kruntal,
My advice, spend the extra $3.00 per tank and treat yourself to an engine that is operating at peak efficiency. ;-)
Best Regards,
Shipo
DL
When I first pulled my Dodge Avenger off the trailer when I moved out west, it was like I had a whole different car. Only not in a good way
By the way, what's up with replying to a message and having to put in a new title?
The absolute delta between 87 & 91 seems to have remained same over the years - 15-20 cents per gallon. But with the gas price being up over $2, the difference is nearly half as %. I think it makes less of a difference in price between the 2 than what it used to be few years ago.
It happened to me once before but I figured I just hit some other button. I actually questioned myself the last time I hit "reply" so I went back and hit it again. No "Re: title".
It's only happened to me twice so I'm not going to lose a lot of sleep over it
Everyone that links to it... seems to think that the article says premium fuel is useless and a waste of money... But, it doesn't say that at all..
In fact, early in the article, they recommend premium fuel in cars where the owner's manual recommends or requires it..
It is only later in the article... In response to the news that some owners of regular fuel cars are using premium, expecting some benefit.. that the experts say that premium fuel is a waste of money... I think that little snippet is taken out of context, when someone claims that the article says premium fuel is a waste..
If the manual says "premium required" or "premium recommended", then use premium... Why the heck would they recommend that you waste extra money on fuel that has no benefit?
regards,
kyfdx
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The passenger side view mirror lowered when I put it in reverse, nice touch, didn't know it was part of the std pkg.
Love the way the little cruise position came up on the tip of the speedo needle ...
Did you all know that if your run-flat tire ever gets a flat, you can drive it to the tire shop, but the manual recommends you replace the tire, and not try to patch it ... that was a surprise (and more $)
I wonder why they have head-rest for the non-existent middle passenger in the rear - it needs to be lowered or it blocks a good chunk of the rear view.
Push start-stop is fine - don't know why all the reviews knock it down.
You need to put head lamp in auto for the adaptive part of xenon to work.
Remember to adjust seat position to where you want - with so many adjustments you could get it with worst settings, but with little time you could go from worst to best.
The business guy tried a fast one - if I didn't get the extended warranty, and if BMW pulls the 4/50K like MB did, then I would end up paying for all the maintenance within that 4/50K. Can that happen - I thought it's part of the deal the BMW made with the buyer when the transaction happened. Can they renege
Stick is not the best in trade - too rubbery and long throws - I liked the VW sticks from late 80's better. Even the TSX/TL sticks seemed crisper. But OK.
I think it is the best car for the sport-loving driver. I may never buy 5 or 7 series even if I inherit $ from Mr Gates ;-) - unless I go for the 911, Elsie or other exotics.
OK, OK. Only 91 octane or better.
Acura/Honda manuals are the standard... Every car's clutch/shifter sucks next to them... that doesn't make the BMW bad... just normal, I think.
Congratulations!!
kyfdx
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