Another engine build

JMVELA

Specialist
Mar 17, 2018
54
21
0
Ride
2012 335is
No, that was obvious :laughing:

Anyway it was a good reason for upgrading everything.

I would suggest not to continue using 14 degrees at 27 psi with forge pistons because you will be ending doing the same thing (damaging the engine on the long run).
 

Jern54

Corporal
Oct 18, 2019
123
58
0
Netherlands
Ride
E91 N54 335i
Boost wil be lower as I will switch to TD04 turbo's.
But that combination would not make any harm to the forged internals.
I don't know on what you based this statement.

Btw
I am not speaking for track use intentions
 
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RuskiRacer

Sergeant
Jul 17, 2019
392
143
0
Ride
2009 e93 335i
Boost wil be lower as I will switch to TD04 turbo's.
But that combination would not make any harm to the forged internals.
I don't know on what you based this statement.

Btw
I am not speaking for track use intentions
What pistons and rods are you going with ? Closed deck insert or will you run aftermarket sleeves and remain open deck?
 

SlowE93

Lieutenant
Jul 2, 2017
649
227
0
Ride
E93
Boost wil be lower as I will switch to TD04 turbo's.
But that combination would not make any harm to the forged internals.
I don't know on what you based this statement.

Btw
I am not speaking for track use intentions
Forged internals or not, 14Ā° timing at 27psi is asking for knock on N54 on stock C.R.
IMO, it would still hurt forged internals, after all..... knock is still knock
 
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Jern54

Corporal
Oct 18, 2019
123
58
0
Netherlands
Ride
E91 N54 335i
I've driven the car over a year on this set up. The car was tuned by Ken in combination with flex fuel. On E85 the tune was safe regarding rod knock. On pump fuel the timing advance reduced automatically.

Again, I've never had knock issues and the piston damage was not a result of rod knock.
 
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Jern54

Corporal
Oct 18, 2019
123
58
0
Netherlands
Ride
E91 N54 335i
Got the engine back today from the machine shop.

IMG-20210226-WA0043.jpeg


IMG-20210226-WA0047.jpeg

Next week we will make a start with assembly.
Started today with determining displacement to calculate CR.

32cc on cyl 1 and 6, skimming has been done perfect.šŸ˜Ž

IMG_20210226_193736.jpg