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03-14-2011, 02:12 PM | #1 |
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Few Q's about motor swap...
After owning a turbo-charged e36 M and a supercharged e46 M, my 3.0 Z4 (dont ask lol) seems kinda ehhh sluggish. I was just looking at a few supercharger options that i had available. well since ive decided to waste 7-8k on a supercharger why not just do an e39 M motor? which is where i am now in my thoughts. i have been probing ebay and found a couple of e39 M motors. my main questions are (because i have no clue)
1. will i need to have motormounts fabricated? (im guessing yes) 2. will i be able to use the existing transmission from my Z4 (obviously using a sturdier clutch and flywheel) or will i have to use the e39 tranny? 3. if i use the e39 tranny will it be roughly the same size and mounts as the e85 Z tranny? thanks in advanced. i typed this out kind of quick so please excuse my grammar/spelling/rant. |
03-14-2011, 02:28 PM | #2 |
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Step 1: Sell your Car
Step 2: Buy Z4M Step 3: Profit You will spend far far more money trying to accomplish that, let alone mating the ECU to have it ever be a worthwhile investmnet.
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03-14-2011, 03:04 PM | #4 |
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lol yea i also love the projects, people see it as a wast of time and even told me to do the same, "just buy an M" the problem is then theirs no interest or story in how you got their or "wow i had no idea you could do that!"
its kind of rewarding making something uniqe if you have the time. hey my time to me is free and the exsperience of getting one on one time with the car is pricless. go for it and have something different and speacial! shoot you could probably shoe horn in an N54 twin turbo in their if you want! as their the irion blocked bro of the N52. Chip it and your in the 400HP range or even go GT style and go fit the V10 engine in their then their would be a show peice! |
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03-14-2011, 03:17 PM | #5 | |
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03-14-2011, 03:30 PM | #6 |
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hey these guys did it i figure it got to be possable! shoot if your really good and can swap the trasmission you could retrofit the dual clutch transmission in their that be suuuuuuuuuuuuuuper hot!!!!!!
http://www.autoblog.com/2006/12/05/t...e-biturbo-z30/ |
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03-14-2011, 03:44 PM | #7 |
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A used N54 swap would be cool, but cost and availability won't be the same as trying to get an old E39 engine. Would likely have to replace the HPFP as well.
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03-14-2011, 04:43 PM | #9 |
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Garage List F15 X5 xDrive35i [8.75]
E86 Z4 M [10.00] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.43] E82 135is (Retired) [9.50] E85 Z4 M (Retired) [9.41] E90 328i xDrive (Re ... [9.25] E86 Z4 3.0si (Retired) [9.24] |
+1 on the HPFP
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03-14-2011, 05:27 PM | #11 | |
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03-14-2011, 05:57 PM | #12 |
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I think someone has already done an E39 V8 swap (Hartge maybe?). So, it is possible and information is out there on google if you want to attempt it. I wouldn't go with the (aluminum block) N54 because of the cooling and HPFP problems.
I think the 5.0 V8 from the E39 M5 would be the coolest route, but I think it will cost you a lot more than the ESS supercharger. Even if you were able to pull it off for the same initial cost (and that's a big IF), the maintenance would be killer. Expect many hours spent trying to reverse engineer a car that would be tough- if not impossible- to resell, and a whole lot of down time for your Z. You'll have to find a buyer that is able to do most of his own work with a good understanding of BMWs. If you went with ESS, you could part out the kit when you sell and only be out a few thousand dollars. I'm not trying to crush any dreams here, but everyone is excited and optimistic on the first day. When you're the hole 8 or 10 grand on a car that's in pieces and no tech support to help you overcome an unexpected problem after 6 months of labor... that's the day you'll have to prepare yourself for. To see what it cost to turn a 323i into an M3, check out http://e46.mit.edu/ My advice is to go with ESS.
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03-14-2011, 07:04 PM | #13 |
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what kind of numbers does the v8 from the x5 put out? are you talking about a 4.8?
guys again i'm not concerned about price, down-time, maintenance. this is solely i project that i think will be fun for me. its not my primary or secondary car. i bought it by mistake (impulse lol) and decided to have fun with it. i just want to do my research before i go and just buy any motor and not be satisfied with the output. Last edited by babydevilj; 03-14-2011 at 07:21 PM.. |
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03-14-2011, 07:55 PM | #14 | |
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