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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 05-14-2009, 03:21 AM   #421
kevinterkelsen
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Weight saving - oem hood vs. m3 oem hood

Hi guys,

been searching and the best I can come up with is that the oem m3 hood should weigh 32 lbs (a Vorsteiner price and weight comparison) - is the 32 lbs the right number for a oem m3 hood? what is the weight of a 3 series prefacelift (non-m3) hood? anybody know how much weight can be saved?

Thanks
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Old 05-14-2009, 11:34 PM   #422
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Originally Posted by hi its me alec View Post
Yes, it will fit. Here are the mods that need to be done.

- M3 transmission
- M3 engine
- M3 DME
- M3 cluster
- M3 LCM
- M3 shifter parts
- M3 engine harness
- M3 body harness, adapted for non-M sedan (rear windows (???), sport button, etc.)
- Traction control??
- Speed sensors?
- all necessary brackets, etc. etc.


All of which, you have to find and do yourself. Your best bet would be to find a wrecked (in the rear) M3, strip both cars down, and swap all the M3 parts into the 325... we're talking every single part here. This will end up costing you a fortune of money and time, especially on the research end of things.
I thouhgt it would be easier,you know, like swaping a honda civic
you only need the engine ,tranny,ecu,motor mounts,harness and the conversion from obd2 to obd1.So I guess it would be better,easier and cheaper to supercharge it right? let me know!! thanks
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Old 05-15-2009, 05:01 PM   #423
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Quote:
Originally Posted by 325i project!! View Post
I thouhgt it would be easier,you know, like swaping a honda civic
you only need the engine ,tranny,ecu,motor mounts,harness and the conversion from obd2 to obd1.So I guess it would be better,easier and cheaper to supercharge it right? let me know!! thanks
Exactly! My best friend's e46 has an ASA blower and it's wicked fast, eats M3s. He got the kit for around 3500 I think it was.

The e46 is so hard to do crazy engine swaps on because it starts out as OBD2. In the future, I really want to attempt an OBD1 conversion. I'd love to do an S52B32 in an e46 sedan and turbo the sh!t out of it.
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Old 05-15-2009, 11:29 PM   #424
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Exactly! My best friend's e46 has an ASA blower and it's wicked fast, eats M3s. He got the kit for around 3500 I think it was.

The e46 is so hard to do crazy engine swaps on because it starts out as OBD2. In the future, I really want to attempt an OBD1 conversion. I'd love to do an S52B32 in an e46 sedan and turbo the sh!t out of it.
sorry what's an s52B32?? newby here!!
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Old 05-16-2009, 12:21 AM   #425
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Originally Posted by 325i project!! View Post
sorry what's an s52B32?? newby here!!
e36 M3 (euro, which has stock independent throttle bodies) engine... this one has an ASA blower





or maybe an S38B38 from an e28 M5.. although it might not be an easy fit. But by logic, you should be able to use the engine. e46 engines work in e30s, and the S38 works in e30s, so hopefully the S38 will fit in an early e46. all of these engines would be especially tough in a late e46 because you'd have to ditch the whole drive-by-wire system and convert to drive-by-cable... i guess i just don't know how that works, so it sounds intimidating lol.





here's a list of 'common' engines for you... lol

e30:

325i = 2.5L (Inline 6) = M20B25
325e = 2.7L (Inline 6)= M20B27
M3 = 2.3L (Inline 4) = S14


e36:

325i = 2.5L = M50B25
Early US M3 = 3.0L = S50B30
Late US M3 = 3.2L = S52B32
Euro M3 = 3.2L = S50B32

e46:

323i = 2.5L = M52B25
325i = 2.5L = M54B25
328i = 2.8L = M52B28
330i = 3.0L = M54B30
M3 = S54B32



the S54 is a seriously porn'd out engine too.
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Last edited by hi its me alec; 05-16-2009 at 12:33 AM.
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Old 06-06-2009, 09:50 PM   #426
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any of you guys know what the part numbers for the rear quarters on an e46 m3 are? kinda curious about the cost of them
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Old 06-07-2009, 01:00 AM   #427
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any of you guys know what the part numbers for the rear quarters on an e46 m3 are? kinda curious about the cost of them
Rear quarter panels on a '02 m3?
http://www.realoem.com/bmw/showparts...64&hg=41&fg=25
41217890689

Realoem is the bmw catalogue online. Search around there and you should find the part # and price for anything you ever need
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Old 06-17-2009, 03:33 PM   #428
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Weight

If anybodys interessted here is what I have been able to find out on the weight of different hoods

Stock non M: 47 lbs
Mhood: 32 lbs
Vorsteiner/Seibon OEM: 16 lbs

have a nice day :o)
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Old 06-17-2009, 03:37 PM   #429
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Great thread!
subscribed!
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Old 06-21-2009, 02:00 PM   #430
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The oil temp gauge works without a problem on 330Ci
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Old 06-22-2009, 07:02 AM   #431
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The oil temp gauge works without a problem on 330Ci
Where does it pick up the signal from then? Are you sure it's not showing coolant temperature?
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1992 BMW E36 316i Sold
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Old 07-16-2009, 04:33 PM   #432
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Whats the difference between the M3 tire well and non M. Is it location or is the m3 one smaller?
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Old 07-16-2009, 05:09 PM   #433
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Whats the difference between the M3 tire well and non M. Is it location or is the m3 one smaller?
Are you talking about the spare tire well? The M3 one is way smaller, about 8" deep and the shape of a half-circle, impossible to fit any kind of wheel in there. Basically, the M3 well is made to clear the huge center-exit muffler out back.
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Old 08-15-2009, 09:16 AM   #434
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what about smg/ssg paddles same plug and play with the steptronic?
Fitted an M3 paddle shift to my 2000 330ci , requires a new slip ring (got mine off Pelican) and a small 2 pin computer plug for the 2 wires to run down to the shifter micro switches, so in sport mode there are 3 wires feeding the micros 1 is power to make them active in the system the others are for up and down the gears, so 1 of each to each paddle, easy really, no problems, computer sorts out which one was first if you hit both.
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Old 08-16-2009, 06:05 AM   #435
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I've read through all 22 pages ...

I've just bought a 2005 325ci facelift coupe. Is it in any possible to install M3 xenon headlights in them? The 325 does not have auto-levelling.
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Old 08-16-2009, 10:18 AM   #436
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I've read through all 22 pages ...

I've just bought a 2005 325ci facelift coupe. Is it in any possible to install M3 xenon headlights in them? The 325 does not have auto-levelling.
Yes, but you need all the parts necessary to switch from facelift to pre-facelift. So that's fenders, headlights, and headlight trim pieces underneath the headlights. Not worth it
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Old 08-17-2009, 05:16 AM   #437
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Thanks for the reply - much appreciated.
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Old 08-20-2009, 06:54 PM   #438
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Hello, I have a set of 2006 M3 rims on a 99 E46 pre-facelift 328i and the back is catching badly.. For now I just took them off. The back is 265/35/19.. What tire profile would you guys suggest I get so I can make it better? What do u mean by fender rolling? Another idea I had, but I'm not sure if it's possible.. What if I get an adjustable shocks/struts to raise it a bit?

Thanks in advance!

Last edited by gldtn; 08-20-2009 at 07:57 PM.
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Old 08-20-2009, 11:50 PM   #439
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Quote:
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Hello, I have a set of 2006 M3 rims on a 99 E46 pre-facelift 328i and the back is catching badly.. For now I just took them off. The back is 265/35/19.. What tire profile would you guys suggest I get so I can make it better? What do u mean by fender rolling? Another idea I had, but I'm not sure if it's possible.. What if I get an adjustable shocks/struts to raise it a bit?

Thanks in advance!
You should probably be running 225/35 all around, maybe a 235/35 in the back but it would probably rub.

Fender rolling means taking a big rolling device (attaches via lugnuts) and rolling the inner lips of the rear fenders flat. That's probably what the tires are rubbing on now. Either way, 265 is outrageous for how far the M3 wheels stick out. Here's what it looks like:



Your new shocks/struts to raise the car idea is... well.. bad. lol

Happy first post, enjoy the forum!
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Old 08-21-2009, 06:14 PM   #440
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Thanks for the fast reply Alec.

Well, I went down to this local shop that does some custom work and had them roll the fender for me. It seems they couldn't do much with the passenger side, because they said it is much thicker then the driver side. So they did as much as they could.. Now as far as the tire size.. According to the tire shop I went to, the smallest size I could put on that wheel(9 1/2 width?) is a 235/35/19. Is this true or these people don't really know what they're talking about? I didn't really check but are the m3 wheels staggered?

Thanks once again guys!
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