ABR Houston's engine program

Alex@abrhouston

Corporal
Platinum Vendor
Oct 25, 2016
146
112
0
Houston, Texas
www.abrhouston.com
Very nice, JE I'm assuming? I wonder how much these actually help with friction. How much lighter are these than the previous pistons you were using?

Yes, JE pistons. Lighter, I can measure vs. one of our older pistons, but I'm willing to bet darn near the same.
Friction is definitely helped with a larger thrust side to help offset the piston being shoved into the cylinder wall face.

Why aren't they asymmetrical from the factory? Seems logical so I'm confused as to why BMW didn't do it.
N54 is not asymmetrical from the factory-
S55 is :)

Are these JE pistons custom made for ABR? Just wondering.

Yes, custom made for us.


Actually, yes these pistons are custom made for us, for the N54.
All of our pistons from JE are custom to our specs. This is the next generation piston we're now using.
 

dyezak

Major
May 4, 2017
1,768
1,518
0
Plano TX
Ride
335is
N54 is not asymmetrical from the factory-
S55 is :)

Actually, yes these pistons are custom made for us, for the N54.
All of our pistons from JE are custom to our specs. This is the next generation piston we're now using.

Interesting....... And good on you guys for making this move :)
 

KevinC39

Corporal
Jun 27, 2017
234
118
0
Ride
335i
N55 cylinder heads are now available!
Stg1 is 899
Stg2 is 1899
Stg3 is 2499
Our own custom valvetrain to any cylinder head above is an additional 2769.
No one offers Valvetrain for S55 or N55 :)

You might want to start a thread about that in the N55 section with some more details.
 
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