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OE Tuning N52 325i Update
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01-06-2011, 07:18 PM | #1 |
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OE Tuning N52 325i Update
So I've been driving around for nearly a month now with the OE tune on my 325 and I figured I'd post an update. I am really happy with this tune, definitely money well spent! I've had the car since May 2007 and have been waiting a long time for a real tune. I passed on the PBX, just knowing something better would come along.
Second gear is just awesome now, basically right from 1k RPM. There's a nice kick when the torque peak starts at about 3k. 3k-5k the car just pulls really hard now. Huge difference. I know my car pretty well after 3 1/2 years and I know the torque increase is for real. And it isn't all loaded into the first 25% of pedal travel. 10-20% throttle position feels like stock. Once you roll into it a little more, the torque starts to build progressively through 100% pedal travel. I'd been waiting just like a few others to do a manifold swap, but now I'm not sure I need it. And this is from a guy who has owned 3 forced induction cars: Procharged Mustang GT, Saab Turbo, and Audi A4 2.0T (wife's current car, APR tuned). This car is just right for me now. Lightest of the e90's, 3 pedals, sport package, amazing seats, great steering wheel. The perfect daily driver, even up here in MA with winter tires + rear wheel drive. Sorry, I'm rambling, but the car is just so good right now! Oh, and my MPG display has been locked at 29.0 for the past 3 weeks. This is getting on it hard 2-3 times a day, 50/50 hwy/town driving. Anyone considering a tune definitely go for it. I love the OE tune, but it sounds like you can't go wrong with the AA tune as well. Kudos for both of these tuners for FINALLY unlocking the potential of the 325/328. I knew a 3 liter, 4-valve, variable cam timing engine with 10.7:1 compression could make significantly more than 185 ft-lb!! |
01-07-2011, 06:54 AM | #4 |
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01-07-2011, 04:01 PM | #5 |
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stop lying that you are gettin 29mpg-post a picture with mpg and average speed and distance and we will see what your really getting. Not with 50 percent city-not a chance. The car is rated at 30 for highway and it gets exactly that or 32 on a good day.
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01-07-2011, 04:15 PM | #6 |
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I wouldn't go as far as calling him a liar. He just said the display shows 29mpg. I measure the gallons I pump verses the miles I drove from time to time and it's usually within 1mpg.
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--Marcelo
'06 Arctic Metallic 325i | Sport Package | 6MT | Dinan Stage III suspension | Dinan exhaust | 330i manifold swap! Click here! | Active Autowerke tune | 135i Brake Calipers | Deiselboost caliper brackets | E46 M3 front rotors |
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01-07-2011, 07:13 PM | #7 |
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Why are you such a hater?
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01-12-2011, 12:06 AM | #8 |
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Is all you have the tune? (any other mods?) I'm looking for a viable route for better power over 3k and better fuel efficiency out of my stock 325i. I too thought about the 3 stage intake manifold swap, but idk about how the tuning will go for it. I'll ask my tuner what he says about it too.
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01-12-2011, 12:20 AM | #9 |
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Check out the link in my sig. I have peak torque at 2750 rpm with 90% available from 1500rpm to 6000rpm.
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--Marcelo
'06 Arctic Metallic 325i | Sport Package | 6MT | Dinan Stage III suspension | Dinan exhaust | 330i manifold swap! Click here! | Active Autowerke tune | 135i Brake Calipers | Deiselboost caliper brackets | E46 M3 front rotors |
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01-12-2011, 09:07 AM | #10 |
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Drives: Z4 M, X5, GX460
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Garage List F15 X5 xDrive35i [8.33]
E86 Z4 M [10.00] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.33] E82 135is (Retired) [9.46] E85 Z4 M (Retired) [9.33] E90 328i xDrive (Re ... [9.00] E86 Z4 3.0si (Retired) [9.18] |
But is it really significantly more?
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01-12-2011, 09:20 AM | #11 |
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01-12-2011, 10:17 AM | #12 |
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Drives: Z4 M, X5, GX460
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Garage List F15 X5 xDrive35i [8.33]
E86 Z4 M [10.00] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.33] E82 135is (Retired) [9.46] E85 Z4 M (Retired) [9.33] E90 328i xDrive (Re ... [9.00] E86 Z4 3.0si (Retired) [9.18] |
but op didn't do the 3 stage manifold conversion, correct?
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01-12-2011, 10:39 AM | #13 |
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01-12-2011, 10:55 AM | #14 |
just another bmw douche bag
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correct.. the OP got the straight tune, which he is happy with. e90pilot has the 3 stage manifold + tune, which yields more power.
actually just the 3 stage manifold on my 325i was a noticeable increase in power, even without a tune. |
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01-13-2011, 08:48 AM | #15 |
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hey gang, very new to this forum and did a search for e90 325i ecu upgrade which lead me here. as this is the most recent thread, i though i'd jump in. i have a 06 325 that came with magnaflow exhaust and simota CF intake. i bought the car a month ago. original owner had no software upgrade so i am looking for best option. any links would be appreciated! so far i have only read about Active Autowerks. was curious about the OE mentioned by OP. thanks in advance!
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01-13-2011, 11:26 AM | #16 | |
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I don't know that you'll get better noticeably fuel efficiency from a tune. You need to change your driving style (and scrap the torque converter if you have one!). Make a conscious effort to keep the mpg gauge to the left side of 30. Get into 5th or 6th gear as soon as you can, especially cruising at 40 mph |
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01-13-2011, 11:36 AM | #17 |
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I average 20-21mpg city/hwy combined because of my right foot. How bout them apples?
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E92 '08 335Xi 6AT - Cobb AP3 Tuned by MAC Autosport, Original Prototype Xi DOCRace 6266 Single Turbo Swap, VRSF CP w/Synapse BOV, VRSF 7" FMIC, BMS Cowl, H&R Coilovers, Renn Motorsport RS-51's, Stoptech Stage 2 Slotted, xHP Stage 3, Earl's Racing Oil Cooler, Turner Boost Gauge, M3 Lip Spoiler.
Standing Mile Record Holder for Xi over a mile high: 168.2MPH @ 5512'; The Colorado Mile hosted by The US Mile. |
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01-13-2011, 11:59 AM | #18 |
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01-13-2011, 12:01 PM | #19 |
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01-13-2011, 12:21 PM | #20 |
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I like my xdrive just fine thanks very much. It does its job in these colorado winters. And, at 6-7K ft elevation, I really don't have much of a "Give a damn" attitude left over when I'm running 16.5 seconds in the 1/4 completely stock. Just gives you an idea of what kind of bullshit I have to deal with every day, but thanks for the captain obvious remark.
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E92 '08 335Xi 6AT - Cobb AP3 Tuned by MAC Autosport, Original Prototype Xi DOCRace 6266 Single Turbo Swap, VRSF CP w/Synapse BOV, VRSF 7" FMIC, BMS Cowl, H&R Coilovers, Renn Motorsport RS-51's, Stoptech Stage 2 Slotted, xHP Stage 3, Earl's Racing Oil Cooler, Turner Boost Gauge, M3 Lip Spoiler.
Standing Mile Record Holder for Xi over a mile high: 168.2MPH @ 5512'; The Colorado Mile hosted by The US Mile. |
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01-13-2011, 12:24 PM | #21 | |
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I'm thinking spring break (or maybe sooner) I'm gonna have to bug you about a set of headers. I'm kind of nervous to see how many people start cussing at me for being too loud.
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E92 '08 335Xi 6AT - Cobb AP3 Tuned by MAC Autosport, Original Prototype Xi DOCRace 6266 Single Turbo Swap, VRSF CP w/Synapse BOV, VRSF 7" FMIC, BMS Cowl, H&R Coilovers, Renn Motorsport RS-51's, Stoptech Stage 2 Slotted, xHP Stage 3, Earl's Racing Oil Cooler, Turner Boost Gauge, M3 Lip Spoiler.
Standing Mile Record Holder for Xi over a mile high: 168.2MPH @ 5512'; The Colorado Mile hosted by The US Mile. |
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01-13-2011, 12:26 PM | #22 |
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