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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 02-07-2012, 06:37 PM   #1
Russian172
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Cylinder head fitment question

So schrick doesn't make cams for a 325 but whole looking around I got to thinking is the cylinder head from a 330 able to fit 325 ? Thanks for looking and also this is kind off testing waters for future
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Old 02-07-2012, 07:19 PM   #2
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Head is the same on the 325 and the 330. Differences are the cams.

Schrick cams work fine in the 2.5.

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Originally Posted by Russian172 View Post
So schrick doesn't make cams for a 325 but whole looking around I got to thinking is the cylinder head from a 330 able to fit 325 ? Thanks for looking and also this is kind off testing waters for future
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Old 02-07-2012, 07:22 PM   #3
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Originally Posted by aggieE46 View Post
Head is the same on the 325 and the 330. Differences are the cams.

Schrick cams work fine in the 2.5.
But they only made for 3.0L engines
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Old 02-07-2012, 07:32 PM   #4
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I want some cams too

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Old 02-07-2012, 08:51 PM   #5
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Whatever you say.

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But they only made for 3.0L engines
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Old 02-07-2012, 08:58 PM   #6
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Originally Posted by aggieE46 View Post
Head is the same on the 325 and the 330. Differences are the cams.

Schrick cams work fine in the 2.5. New forum members, you need to listen to aggieE46; He is always correct.
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Originally Posted by Russian172 View Post
But they only made for 3.0L engines. Wrong.

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Originally Posted by j_block View Post
I want some cams too. That's nice.
OP, seriously, they'll work perfectly in your 2.5L application.


Good luck,
Rob
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Old 02-08-2012, 09:37 AM   #7
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I'm only generally correct because I've done a lot more searching and reading than I have posting
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Old 02-08-2012, 11:01 AM   #8
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Does anyone know for certain as to whether or not the 323, 325, AND 328 have the same cam lift/duration for both the intake and exhaust shafts? Not as in the intake and exhaust shafts being the same as each other, but as in...does the M52tuB25, M54b25, and M52tuB28 share the same set of cams? If my memory serves me correctly, all three got the 240 intake, 228 exhaust cams...I just want to confirm this, because the only information I can find is on E36s and I'm about to swap a 323 head onto what used to be an M52tuB28. If the 323 has less advanced cams, I'll probably just swap the M52tuB25 in from the 323. I know it takes longer to swap heads than motors, that is irrelevant.

Thank you!
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Old 02-08-2012, 11:08 AM   #9
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i would think the M52tuB28 would have different cams because it has a larger displacement and would need more air...
but seeing as the throttle, maf and pipes are the same size as the 323i maybe they used the same cams also

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Old 02-08-2012, 11:16 AM   #10
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I'm 99% sure that they are the same. I found some new information lol. I've been out of the e46 game for a while and went home to e36s. My friend blew his motor up, so we're about to do some mixing and matching. Apparently 323/328s came with an intake duration of 228 and an exhaust of 244 with a lift of 9.0 across the board. The m54b25 got the same set and the 330 had a hotter intake cam.

http://forum.e46fanatics.com/showthr...ight=cam+specs

Now...I need to find out how long it takes to swap a crank ugh.
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Old 02-08-2012, 11:43 AM   #11
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sounds like you hatching madd plans
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Old 02-08-2012, 08:53 PM   #12
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Also I recently found out I would loose compression due to 330 heads being larger than 325 you think it's. A lie ?
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Old 02-09-2012, 08:22 AM   #13
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it's the same head.
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Old 02-09-2012, 10:26 AM   #14
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+1. Please listen.

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it's the same head.
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Old 02-09-2012, 07:35 PM   #15
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+1. Please listen.
Thank you for you generosity guys I'm considering this swap but I'm thinking too late for power gain at 130k miles don't you think ?
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Old 02-09-2012, 08:46 PM   #16
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Thank you for you generosity guys I'm considering this swap but I'm thinking too late for power gain at 130k miles don't you think ?
160k here. When she breaks, I will fix her.

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Old 02-10-2012, 11:40 AM   #17
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160k here. When she breaks, I will fix her.
+1, so long as its maintained no reason to not make power.
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Old 02-11-2012, 03:09 PM   #18
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Originally Posted by sjpgoalie View Post
Does anyone know for certain as to whether or not the 323, 325, AND 328 have the same cam lift/duration for both the intake and exhaust shafts? Not as in the intake and exhaust shafts being the same as each other, but as in...does the M52tuB25, M54b25, and M52tuB28 share the same set of cams? If my memory serves me correctly, all three got the 240 intake, 228 exhaust cams...I just want to confirm this, because the only information I can find is on E36s and I'm about to swap a 323 head onto what used to be an M52tuB28. If the 323 has less advanced cams, I'll probably just swap the M52tuB25 in from the 323. I know it takes longer to swap heads than motors, that is irrelevant.

Thank you!
The intake cam part numbers are the same except for the 330-

Part Cross-reference

RealOEM.com Home
Language: Part 11311438079 (INLET CAMSHAFT) was found on the following vehicles:

E46: Details on E46
E46 320i Sedan
E46 323Ci Coupe
E46 323Ci Convertible
E46 323i Touring
E46 323i Sedan
E46 325Ci Convertible
E46 325Ci Coupe
E46 325i Touring
E46 325i Sedan
E46 325xi Sedan
E46 325xi Touring
E46 328Ci Coupe
E46 328i Sedan

The Exhaust cams are the same even on the 330 -

Part 11311435416 (CAMSHAFT EXHAUST) was found on the following vehicles:

E46: Details on E46
E46 320i Sedan
E46 323Ci Coupe
E46 323Ci Convertible
E46 323i Touring
E46 323i Sedan
E46 325Ci Coupe
E46 325Ci Convertible
E46 325i Touring
E46 325i Sedan
E46 325xi Touring
E46 325xi Sedan
E46 328Ci Coupe
E46 328i Sedan
E46 330Ci Coupe
E46 330Ci Convertible
E46 330i Sedan
E46 330xi Sedan
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