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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 01-09-2013, 03:35 PM   #41
metlic53
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Old 01-09-2013, 03:40 PM   #42
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Old 01-09-2013, 03:40 PM   #43
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new engine just got in, installing all components
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Old 01-09-2013, 03:51 PM   #44
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Looks clean, the power will be night and day.
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Old 01-10-2013, 11:16 AM   #45
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Looks clean, the power will be night and day.
I hope so
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Old 01-10-2013, 01:23 PM   #46
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i know so.
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Old 01-10-2013, 02:41 PM   #47
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Looks clean, the power will be night and day.
Lol. It's not an S54. That's about the smallest power gain imaginable from a whole motor swap.

M54-> S54 = night and day
M20-> S52 = night and day
M50-> S50 = night and day
M54-> M54 = nice little upgrade
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Old 01-10-2013, 03:52 PM   #48
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mmmm id say 50 hp difference is night and day

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Old 01-12-2013, 12:17 AM   #49
metlic53
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I drove one with a 3.0 and it was way faster than my 2.5. Your night and day may be different than my night and day
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Old 01-12-2013, 12:33 AM   #50
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Lol. It's not an S54. That's about the smallest power gain imaginable from a whole motor swap.

M54-> S54 = night and day
M20-> S52 = night and day
M50-> S50 = night and day
M54-> M54 = nice little upgrade
M54b25 -> M54b30 is pretty close to M50 -> S50... (unless you're talking euro version). Nonetheless, a 41-51hp increase in horsepower is not insignificant, especially when you're starting with 184. That's a 22-28% increase in power. The torque delta is similar in magnitude as well. IMO that's more than enough to be considered night and day.
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Old 01-14-2013, 01:31 PM   #51
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The BMW is finished, i should be picking it up later today or tomorrow, he said im getting a check engine light due to my high flow air intake though, i'll put the factory box back on and see what happens, pictures to come...
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Old 01-14-2013, 01:37 PM   #52
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The BMW is finished, i should be picking it up later today or tomorrow, he said im getting a check engine light due to my high flow air intake though, i'll put the factory box back on and see what happens, pictures to come...
Congrats, I also have an 01 325i so I am very interested in the power difference as you never know I may try this. The first pics look awesome congrats man.
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Old 01-16-2013, 05:10 PM   #53
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I picked it up today, 2600 bucks total plus new gaskets which was cheap. Engine looks and runs great and the power difference WOW! It will run now, before I thought I was fast but now it's just the perfect amount. It glides up to 75 alot easier and pulls definitely alot harder! I think it was worth it. Ill post pictures after I get home from church
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Old 01-16-2013, 05:23 PM   #54
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aren't you glad you just didnt fix the head?????
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Old 01-16-2013, 07:56 PM   #55
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Yes I am cuz it will fly and I don't even have to floor it!
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Old 01-16-2013, 07:58 PM   #56
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it gets up to 135 in a hurry to..... if you ever test it at those speeds
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Old 01-17-2013, 12:06 AM   #57
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I did once when I had the 2.5 in there but it took awhile, cruised to 100 smooth, ill ride this one for a few weeks nice and easy to make sure it holds together b4 I open her up, now I need to install my new back tires and control arm bushings, and hope my CEL for the MAF goes away
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Old 01-17-2013, 01:01 AM   #58
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are you using the 330 maf, TB, intake and injectors
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Old 01-17-2013, 01:14 AM   #59
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Did you install the 330 software?
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Old 01-17-2013, 01:19 AM   #60
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Don't we all love these happy endings?
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