BigBoost pulls B58 pistons and rods preparing their forged upgrades

doublespaces

Administrator
Oct 18, 2016
9,050
4,158
0
AZ
Ride
2009 E93 335i
@[email protected]_Boost_Turbo has pulled the stock B58 rods and pistons so they can put in some forged replacements:

full.jpg

full.jpg

full.jpg

full.jpg
 

doublespaces

Administrator
Oct 18, 2016
9,050
4,158
0
AZ
Ride
2009 E93 335i
Apparently they are doing 'light weight pistons with stock compression' and ARP studs.
 

Bnks334

Lieutenant
Dec 1, 2016
505
329
0
New York
Looks similar to every piston and rod bmw has put in their inline 6 for the past 20 years lol. They are already forged by the way. With pistons and rods upgraded though I'd expect to see these B58 blocks handle 1000whp+ builds. Closed deck and the forged crank is a solid piece again instead of that friction disk nonsense. The two major things that needed addressing on the the N5x/S55 to make big power...
 
Last edited:
  • Like
Reactions: tisdrew

N54rsenal

Private
Dec 11, 2018
28
7
0
Ride
2010 335i M Sport LCI
How much power can a B58 make on stock internals?

Even with upgraded turbos and everything else but keeping the stock longblock.