02-06-2013, 03:25 PM | #23 | |
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02-06-2013, 04:44 PM | #25 | |||
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As for the off topic subject, I thought the pricing difference of the 328 to 335 was around $3k for a similarly optioned 328 car. There are a couple of things that aren't available on the 328 like the brakes. I don't know if there are any other things. Interesting enough, the EPA numbers for the 328 and 335 are the same. Based on the new 320 that just got released, it may not be as desireable to get the 328. There was talk that previous 328's were lower compression, low boost with more aftermarket potential. When the 320 came out, the 328 got higher compression high boost which limits the overhead capacity of the 328 engine vs the low boosted 320. That said, the 328 is wonderfully balanced. It's amazing what taking 160lbs off the front end does. The car transitions so much quicker. It was a hard decision for me as well. Eventually the seductive power of the 335 got me. And now with the high boosted 328's, the decision to go with the 335 is more advantageous. |
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02-06-2013, 05:29 PM | #27 | |
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I am willing to dump 1k on a performance exhaust to get that satisfying note, but the 4 cyl overall is a charmer. |
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02-06-2013, 05:53 PM | #28 |
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Drives: 2013 335i M
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Its the 4cyl
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02-06-2013, 07:08 PM | #29 | |
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Fuel economy matters, it matters more and more, its part of the times. I tested an 8spd 335 against my 6mt 328 and both got good results, but the n20 was over ten percent better, if the n55 had been a manual the gap would have been even larger. So to spend $1000 on a 328 for an exhaust magically means you could have had an 335? No. Me, well I modify everything, cars can always be made better. So knowing the exhaust(free but anyway) and my $300 tune gave me 335+ performance is pretty amazing as I get to keep the better handling and economy. I bought my 328 and not a 335 as another FI straight 6 BMW is redundant for me. Factor in my unique 328 build that was almost one of a kind due to the low price I snagged it for, yeah woks for me. If they offered me a 335 for the same price, would I say no, give me the 328...no. The idea that no one would want a 328 if they could afford a 335 is pretty presumptuous. Some guys prefer c-cups to d-cups lol. For me, I already have a wife(in this case the 500+hp BMW) with double DD's so having a fling with a girl with C's is nice for a change lol.
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02-06-2013, 07:12 PM | #30 |
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There are 1-3 $2500 exhaust options but 3-5 that run $800-1200. Install is an hour or less of labor, you are talking about $100. So I am not seeing your $5k exhaust made of titanium and baby zebra marrow.
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02-06-2013, 07:18 PM | #31 | |
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The 320 is less boost friendly than the 328 as it has inferior pistons. It's not more boost friendly, they both have the same compression ratio. So your assertion that the 320 is more boost ready than the 328 is incorrect.
The 328 has smaller brakes than the 335 because it has less weight over the-nose. Larger brakes also cause an increase in unsprung weight. So just because the 328 has smaller brakes does not make them inferior to the 335. Compare stopping distances of same line, same tire cars and I am sure the 335 will not trounce the 328. Quote:
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02-06-2013, 10:29 PM | #32 | |
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Someone else summarized that the 320 will be able to knock on the 328 doors but it will now be difficult for the 328 to knock on the 335 doors. Possibly what this is saying is that even the 320 could knock on the doors of the 335. I guess we'll find out shortly as more people start modifying their cars. As for the brakes, agreed, the 328 is lighter but it's not just a one stop performance. It's obvious that both brake systems are able to bring the tires to maximum adhesion. I think you will find it rare for any modern car that can't. But it's consecutive stops and the consistency of the performance over the consecutive stops where the 335's brakes will start to perform better. Regardless, I've made my decision and you've made your decision which is why we have what sits in our respective garages accordingly. Nothing wrong with that. Last edited by stom_m3; 02-06-2013 at 11:27 PM.. |
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02-06-2013, 11:24 PM | #33 | |
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Sportline is standard on the Canadian 335i, so is Sport auto transmission (not available on 328i), Rear view camera & HK sound are part of the Premium pkg, Adaptive head lights (std.), High beam assistant (std.), Heated steering wheel (std.). It is also possible to add the optional Adaptive M Suspension, Variable Sport steering and M Sport Package to a Canadian 335i; none of these options are available on a 328i.
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02-07-2013, 02:24 AM | #34 | ||
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02-07-2013, 08:12 AM | #35 | |
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The pistons were confirmed to be the same CR but different part numbers as the 320 is said to have inferior pistons. So the difference is the pistons and the dme tune with less boost to compensate for the weaker pistons. 328 can more than knock on the door of the 335 with just the BMS tune results show sub 5 second 0-60 and nearly 105mph traps. I got my tune for $300 lol.
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02-07-2013, 08:48 AM | #36 | |
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02-07-2013, 08:53 AM | #37 |
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Getting back on topic...
OP the noise you're hearing is likely the solenoid for the injection pump on the fuel rail. Interestingly the acoustic cover on the engine does not cover the pump, so you get that clickity-clack at idle. I learned recently that some cars were built without a sound dampener. It might be worth while to take the car to the dealer and ask them to visually inspect the pump and make sure the sound dampener is there. A friend is a master tech at a local BMW dealership and he had a customer car in the shop without the dampener. He reported a slight improvement in sound with it installed. http://realoem.com/bmw/showparts.do?...16&hg=13&fg=15 I am referring to parts 9-11 on the diagram. |
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02-07-2013, 10:06 AM | #38 | |
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Congratulations on your tune. |
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02-07-2013, 10:07 AM | #39 | |
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BMW did not build the N20 and make it so high strung that it barely gets by suriving and lasting. That is not how an engine is engineered. The tune I have added makes 3psi more at WOT. It's really not much more stress. In fact, BMW agrees as they have developed their own PPK that increases power on a stock N20. Dinan is making a tune as well, also backed by a warranty that matches BMW. Now, it's true. It theoretically could shorten the life of say the turbo, down from 120k miles, shorten it 10-15%(the increase in boost) and now it will only last 100k miles. But fact is, other stock N20's could have the same failure based on city usage, oil change intervals, etc. It could also just be the life of one part vs another as a manufacturing means one just lasted longer than the other. So even if some components like my turbo fail sooner due to my tune, I don't plan on owning this car after 100k anyway. Have fun with M3 performance on your 335...with your open differential and all the things missing that make up an M-car. I will have my $300 investment in my DD 328 and on weekends or track days get into my real M-car with an LSD and a shitload of power.
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02-07-2013, 10:50 AM | #40 | |
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The way it looks from what I can research. The 328 N20 and N26 made prior to 11/12 have the same pistons with part no. 11257618811. That part has now "Ended" and the only current part that is shown is listed under the 320 N20 configuration, part no. 11257640168. I'm assuming that 328 engines made after 11/12 is made with the new piston/engine configuration using the same pistons in the 320. That said, I could be wrong and possibly someone who works at BMW could confirm part numbers. |
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02-07-2013, 11:00 AM | #41 | |
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It means either the 320 is getting better pistons thanks to the 328 or that the 328 will be getting inferior pistons now that the 320 is being made for the us and in a larger scale.
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02-07-2013, 11:08 AM | #42 |
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02-07-2013, 01:48 PM | #43 |
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Yeah, fun!
I got my N20, before even knowing of the n26. Its had 20 dyno pulls and was shown to be strong and runs strong. So if BMW screws up what comes next, so be it lol.
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02-14-2013, 09:52 PM | #44 | |
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Well said. It annoys the hell out of me when people make remarks about "upgrading" to a 335. I purchased a 328xi M cause that's what i felt was sufficient for my needs and wants. If i didn't have a wife, kids, and a mortgage, guess what....i would've been driving an M5. LOL |
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