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328 has 3 stage intake with 2 DISA valves.
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08-17-2007, 05:45 PM | #1 |
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328 has 3 stage intake with 2 DISA valves.
I thought it didnt have it according to bmws tech manuals
but a bmw tech informed me of this... "Well good news, I had to do another knock sensor on an E90 328 today (seems like its gonna be a common thing) and took a closer look, it has the three stage intake with 2 DISA valves, and its a three liter, so I think there is some software tuning, exhaust and other mods that will awaken this motor, time wil tell" |
08-17-2007, 06:53 PM | #3 |
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i don't think it has a 3 stage intake. Not sure what DISA is, but here's what i've found.
Our cars have a 3.0L DOHC 24-valve I6 engine-inc: double-VANOS variable valve timing and Valvetronic |
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08-17-2007, 07:40 PM | #4 | |
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Quote:
http://www.e90post.com/forums/showthread.php?t=37444 The 330i N52 has a three-stage differentiated air intake system (DISA) with two DISA actuator motors. |
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08-17-2007, 10:00 PM | #6 | |
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I just took a look at the intake manifold on mine, and i don't see the actuator, so I'm pretty sure we don't have them. It would've been nice, but wishful thinking... |
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08-17-2007, 10:29 PM | #8 |
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08-18-2007, 04:57 AM | #9 |
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i was excited for a second there. lol
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08-20-2007, 04:18 PM | #11 |
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08-20-2007, 05:35 PM | #12 |
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Yeah, he was pretty sure but after looking up the technical specs, the 328 is not supposed to have the 3 stage intake manifold. So there is a discrepency somewhere. It would be nice if someone else with a 328i could check and could confirm.
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08-20-2007, 05:44 PM | #14 | |
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08-21-2007, 09:57 AM | #16 |
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Thanks for looking... I guess it could not have been a 328i, really disappointing. After reading dinan's white paper, its looking like converting the 328i to the higher output specs is not going to happen anytime soon given the complexity of bmw's ecu's unless of course bmw offers something from their new performance parts division.
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08-21-2007, 03:47 PM | #17 |
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where could we find this chip from?
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08-22-2007, 11:47 PM | #18 |
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Ok looks like the regular 328 doesn't have it but the N51 super low emissions version or whatever its called had it on one car. So this seems even more odd.
Does anyone with the N51 328i care to check their intake manifold?? |
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08-23-2007, 01:21 AM | #19 |
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hmm i thought the n51 was the sulev or super low emission or whatever you where referring to thats the low emission 2.5l that other countries have, i searched online and couldnt find anything about a n51 low emmisions 328i or even 3.0l engine at all
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08-23-2007, 08:57 AM | #20 | |
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In order to comply with SULEV requirements, the N51 is another variant of the N52 engine. There are various measures to meet the EPA/CARB standards, some of which are familiar from the previous SULEV (M56) engine. Some of the SULEV measures for the N51 include: • Near engine catalyst with additional underbody catalyst • Secondary air system • Optimized combustion chamber geometry in cylinder head • Modified piston crown for lower compression • Plastic valve cover with integrated crankcase vent valve and separator (from N52KP) • Stainless steel fuel lines with threaded connections • Radiator with “Prem-air” coating • Throttle system - EGAS08 carried over from N52KP • Airbox with Activated carbon filter for EVAP control • Purge system pipes are made from “optimized” plastic Crankcase Ventilation N52KP and N51 The crankcase ventilation system on the N52KP and N51 uses a crankcase ventilation valve which is incorporated into the cylinder head cover. Oil is separated via an internal labyrinth which is also incorporated into the cylinder head cover. This system, like the N54, also benefits from the integral components. This design allows engine heat to warm the crankcase vapors which decreases the likelihood of any moisture freezing in the system during conditions of low ambient temperature. Vehicle length 4580 4448 Overall vehicle width 1782 1757 Vehicle height, unladen 1395 1369 Wheelbase 2760 2725 Overhang front 771 774 Overhang rear 1049 1049 Track width front 1500 1474 Track width rear 1513 1486 Wheels /tires 225/45 R17 205/55 R16 |
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08-07-2024, 06:52 PM | #21 |
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The 2009 328i e92 did not come from the factory with the 3Si manifold in the U.S., as well as the DME software was "dumbed-down" in order to comply with EPA laws. However, the wiring harnesses for both DISA valves are present in the engine bay. This means that the 3Si manifold can be installed. I know because I did the mod on my 09 328i.
If you do install one, I highly recommend you also flash the DME with the Bimmergeeks 328i to 330i software to fully activate the Disa valves. There's instructions to do this on their website. |
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08-09-2024, 10:21 PM | #22 | |
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