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n55 not past 360hp?
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08-09-2011, 10:43 AM | #1 |
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n55 not past 360hp?
So i came from the 1erforum, you guys have seperate n44/n55 threads and for the first time I heard about a turbo upgrade, since most people assume the turbo is restricting tuning output compared to n54 bi-turbos, which is true...and valvetronic. but all this aside, can the crankshaft handle power especially torque much higher than stock?
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08-09-2011, 12:23 PM | #2 | |
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08-09-2011, 12:30 PM | #3 |
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Say you had the maximum from full boltons and tunes. Say that was ~360hp. If you had your heads ported with larger valves.
http://www.e90post.com/forums/showthread.php?t=569261 Would you still achieve an increase in peak power as well as a better power band? |
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08-09-2011, 01:49 PM | #4 |
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The crank is the last thing you have to worry about. Worry first about the half shafts and tranny. Then we'll talk crank...
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08-09-2011, 02:01 PM | #5 |
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Im not sure, call me old school but back in the day iron cast cranks were used for low powered diesel engines. I know the 1.8l turbo in mini cooper s has cast crank but not half the torque we do. tranny im thinkin ok till 400hp safer with aftermarket components of course.
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08-09-2011, 03:10 PM | #6 |
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08-09-2011, 03:13 PM | #7 |
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I don't trust the AT. Hell I remember they use to slip on the e46 330i with anything over 350tq. I want 500+hp/tq! Then I will be happy.
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08-09-2011, 03:18 PM | #8 |
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Hahah - i can't remember if you have AT or not Ernie? 500+ i'm sure you know but your prolly gonna have to rebuild a lot of this engine...
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08-09-2011, 03:23 PM | #9 |
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I will have 500! I don't think it will take much rebuilding at 500... Maybe 600hp. I'll push this damn thing till it breaks..
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08-09-2011, 03:28 PM | #10 |
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08-09-2011, 04:09 PM | #11 |
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08-09-2011, 06:11 PM | #12 |
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*no homo*
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08-09-2011, 07:48 PM | #14 |
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I would have had to special order a 6mt and I didn't feel like waiting...
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08-09-2011, 11:18 PM | #15 |
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08-09-2011, 11:38 PM | #16 |
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Si. I'll break something eventually and I'll report what goes first.
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