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320d performance mods
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01-25-2009, 11:34 AM | #1 |
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320d performance mods
Thought I'd ask in here as I'd prefer to buy parts from the UK...
I'm after a few things for mine, to see just how potent I can make it, I'd prefer to use genuine parts wherever possible, but I appreciate some will have to be aftermarket. The main 3 on the list are - Larger intercooler (330d? 335d? 335i?) Larger turbo (I know the 6 cylinder ones are different fitments, so I'm not sure here) Larger bore exhaust The turbo is the main issue, I'm not sure how to go about getting a larger one, I know Alpina did something for the D3, using some BMW bits and some of their own, but can't find any real details on it. Intercooler wise, does anyone know if they're the same sort of fitments? As for the exhaust, I can have one made if needs be, but it's easier to buy one. Most of the aftermarket ones just seem to have a different backbox, and no real gain in exhaust flow. I've got a couple of contacts in the trade from where I used to work, so I'll be having a word with Turbo Technics about the turbo, but if there's one available off the shelf, it'll be quicker than getting a used E90 320d one and giving it to them to tinker with. Anyone got any ideas/suggestions?
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01-25-2009, 11:54 AM | #2 | |
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01-25-2009, 11:58 AM | #3 |
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TMP beat me too it.
Speak to Ant and speed religeon. Alternatively think about Methanol injection. Bigger intercooler off a 330d also and maybe also the injectors and pump. Turbo i rekon would be ok for 240bhp aslong as its been well looked after.
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01-25-2009, 12:07 PM | #5 |
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No i dont believe so. The DPF is attatched to the Down pipes. Well just after it i think.
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01-25-2009, 12:12 PM | #6 | |
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I would also keep the orignal tips on as well....stealth
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01-25-2009, 12:18 PM | #7 |
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Yeah i agree, not cool being all sooty.
Apparently VAG Diesels with the DPF removed can achieve 40bhp more on a re-map.
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01-25-2009, 12:21 PM | #8 |
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Methanol injection? Tell me more!!
I'd not thought about the injectors, but I suppose that'd be a good idea really. Are the E90 330d ones more reliable than the E46 ones?
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01-25-2009, 12:22 PM | #9 |
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Oh, and how much torque is the gearbox capable of handling? I can see that as a limiting factor
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01-25-2009, 12:27 PM | #10 |
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But VAG DPF's are naff - the non auto-regeneration type (where you have to drive hard to the heat the DPF for 10 mins to clear it out)
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01-25-2009, 12:58 PM | #11 |
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330d injectors are something to consider, the d3 if memory serves me right, uses the injectors & turbo, i think, from the 330d and also some minor electrickery with the ecu.
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01-25-2009, 01:17 PM | #12 |
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The D3 turbo is half 330d (presumably the compressor side) and half Alpina/Garret (again, presumably the exhaust side, to allow it to bolt to the 320d manifold)
Injectors are 330d ones though, according to google.
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01-25-2009, 01:25 PM | #13 | ||
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I dont know if the 330d injectors are more reliable, but im sure there definately higher flow. Quote:
I think the box is stronger than what people may think. D3 is twin turbo.
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01-25-2009, 01:52 PM | #15 |
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As mentioned it would be worth a phone call to Anthony at Speed Religion. He has done a lot of diesel tuning and is about to prep a diesel 3 series for racing alongside his M3. He can offer all the mods you are talking about.
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01-26-2009, 07:17 AM | #16 |
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I don't think meth works on diesels. Propane and NOS give good results, though.
I would worry about intercooler, injectors etc etc until you've looked at changing the turbo. Personally, I would only look at changing the turbo if you can get a remap for it, which will most likely mean a custom remap, or the map off a D3, if you're lucky. But a 320D with remap can make the same as a Stock D3, anyway... I think the intake on a 320D is "okay", the putting a filter on mine make a subtle difference. I think the turbo intake pipe looks like a compromise, so I think there's something to be done there. Not a massive improvement, though. What about considering the parts off the 123D engine?
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01-26-2009, 08:10 AM | #17 |
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I think the stock turbo would be okay for 240bhp but not sure about the stock fuel pump and injectors.
Drag diesels run Methanol injection as do a few diesel engined cars ive seen at Santa Pod.
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01-26-2009, 11:59 AM | #18 | |
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Not really thought about that, I would have thought it would bring up some significant engine management issues though, although I'm not sure. A custom remap shouldn't be a problem, my old boss has been mapping cars for about 15 years and wrote the file which is on my ECU at the moment.
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01-28-2009, 07:41 AM | #19 | |
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My point was that you can remap a stock 320D up to D3 levels, but I don't know if anyone did a map for the D3 so even if you did all the work, you wouldn't get anything (significant) more out. Just so I'm clear - what do you get out of yours?
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You know any turbo suppliers? A garret house would be best - there's a few dotted about, one of the main ones happens to be in Wakefield...
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03-24-2009, 05:44 AM | #20 |
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Hi guys,
I'm really glad I found this thread as you all seem to be in the know when it comes to comparing a 320d to 330d. I have a 2003 320d which has just had a new turbo and now may have faulty injectors. I can get a set from the 330d pretty cheaply (Bosch part number 0445 110 030 instead of 0445 110 216). Will these work in my 320d without reprogramming the ECU and without causing any knock-on harm to other components? Thanks in advance |
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03-24-2009, 10:22 AM | #21 |
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Robin, Paul on here run a 15.3 @90 recently. So theres more to come.
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03-24-2009, 11:55 AM | #22 | |
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