100WHP by installing an N52 exhaust cam in an N55.

Boldy169

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May 9, 2020
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Your tuner is correct.
If there was proven results i would of done this when I built my engine. I decided to wait to see to see if some results would follow as I'm going stage 3 turbo and my tuner seemed to think there maybe a benefit with the larger turbo.

I got the engine back out so if there are proven gains I would do now. Time to post some results if the op has them I think
 
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scrllock

Sergeant
Dec 17, 2018
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2011 335xi
Check out @Hydra Performance 's build, he has some solid info on using n53 heads for much better flow. This n52 cam thing is a joke, especially at the power levels you're at.
 

Begood69

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Nov 13, 2016
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Fayetteville, NC
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335i N54 Predator 3.2L stroker
I have a n53 head if anyone interested. 400 plus shipping. Head only, no ledge or cams. Lmk

Also i am looking for n55 intake rollers 24x 11337631121
 

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JohnDaviz

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Jan 6, 2019
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335i E92 DCT
I have a n53 head if anyone interested. 400 plus shipping. Head only, no ledge or cams. Lmk

Also i am looking for n55 intake rollers 24x 11337631121

I am looking for data but basically what i found is that the assumed rocker ratio is 1.72 over 1.667 or something. But when looking for ppl who put the parts into the head i can´t find anybody.

Have you installed them?
 

Begood69

Corporal
Nov 13, 2016
234
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Fayetteville, NC
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335i N54 Predator 3.2L stroker
I have not found the need to remove the cams yet so no. I took them to the machineshop to measure them but not done. I need to go remind the guy too. Im sure they forgot about it .
 
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JohnDaviz

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Jan 6, 2019
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I took them to the machineshop to measure them but not done. I need to go remind the guy too. Im sure they forgot about it .

Tha would be actually amazing if you could remind him. I will start my project by the end of the year, so i could include these parts if your results are positive.
 
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JohnDaviz

Lieutenant
Jan 6, 2019
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335i E92 DCT
I have not found the need to remove the cams yet so no. I took them to the machineshop to measure them but not done. I need to go remind the guy too. Im sure they forgot about it .

Hey Mate! Any Update? :)
 

Dinox54

Lurker
Apr 8, 2023
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oye tengo una pregunta

¿Puedo usar levas de admisión y escape n53 en un motor n54 con todos los elementos de stock n54 Head?

i need change my n54 cams and i have a complete n53 engine...
 

Dinox54

Lurker
Apr 8, 2023
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Good! I tell you a little how I take my madness to see if you can lend me a hand ...

The patient is a BMW E92 325i 3.0 N53B30, manual transmission, which after removing engine failure in the first cylinder, I propose to swap to N54B30 ...

I bought an E93 335i N54B30, automatic transmission, I have already taken out the engine, wiring, everything I need.

My problem comes when I disassemble the engine by finding surprises with the oil ... cornflakes... I discovered that apart from the hybridized turbos completely destroyed, I found the camshafts completely eroded... So I'm about to rebuild the engine completely.

My doubt comes in the following... I have bought 2 used camshafts of N54, but the exhaust camshaft is scratched, I need to know the following:

Can I use the exhaust camshaft of the N53 engine on the N54?

I know I can use the intake camshaft of the N53 on the N54, even gaining something in the process... but I don't know if I'll be able to use the exhaust one...

Any ideas with that?

And another doubt, the VANOS Admission phase variable are different from the N54 and the N53. If I use the intake camshaft of the N53, which phase variable should I use, the N53 or the N54?