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Forced Induction Forum
Discuss supercharging, turbocharging and even nitrous and water injection here.

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Old 01-12-2013, 08:59 AM   #21
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Originally Posted by 7to3_enthusiast View Post
...and I've asked this before, but why in the world is that N54 making ~100+rwhp than the s54 at 4000 rpms and up? Yes, I'm hatin.
Here is why:

The car is making 480 lb/ft of torque at 3500 rpms. The little twins spool instantly. It really is one hell of a motor. What I find amazing is how that S54 handles power just as well, if not better than the S65. The S54 is a total gem.
Dakar Yellow
1998 E36 M3

Last edited by Irishace; 01-12-2013 at 09:01 AM.
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Old 01-12-2013, 09:30 AM   #22
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Here is another chart built out to include Active Autowerke's offerings:

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1998 E36 M3
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Old 01-13-2013, 07:05 PM   #23
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Yeah the stock twins spool well on the N54 but look even at the Vishnu single turbo setup. It's still making a helluva lot more torque and power down low than the s54. Even though it won't make the peak power that some s54's make it has more power under the curve which equals a faster car. If I had to guess I'd say it is their head was designed to flow a larger volume of air at lower velocities.

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Old 01-14-2013, 12:11 PM   #24
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Because the N54 was made for daily driving (lower redline tons of torque). The engine internals are strong because it's FI from factory.
S54 was build for racing (fast NA response, only making decent power because of the high redline).

My next project will be N54 for sure.
Because sleeper
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Old 01-14-2013, 12:54 PM   #25
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Ok, my opinion:

The n54 is highly under rated. With one stage 2 chip and a clutch and flywheel kit it can put out near 500hp and merk e92 m3. The next m3, f30, has an engine based on the n54. Formally being called an n55, with a tri turbo. Understanding that, I don't see it being that difficult to swap the tri turbo into the n54. One the next m3 comes out the boost capabilities and options on the n54 will be endless. I don't have links to provide to support with at the moment due to the fact I am on my phone but I've been thinking a about swapping the n54 into my car already. If you were to go down that path you will surely not regret it. The n54 is much easier to code onto than the s85. If not that then my second option would be the s54. But if you want something for race or track use get an i6, not a v8. Much more balanced.
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