View Single Post
      12-19-2019, 08:30 AM   #960
CSBM5
Brigadier General
CSBM5's Avatar
2723
Rep
3,337
Posts

Drives: 2019 M2 Comp, 2011 M3, etc
Join Date: Nov 2005
Location: Greenville, SC

iTrader: (2)

Quote:
Originally Posted by VTBoss302 View Post
In some ways it's kind of like the difference between having carburetors and electronic fuel injection

When EFI became commonly available it was viewed by many (myself included) as undesirable because the ability to change or adjust your air/fuel mixture appeared to be coming to an end and the reliability of electronic management was a concern
My problem with FI back then was that it wouldn't flow enough air (at a reasonable pressure drop) in addition to being essentially non-tuneable except over small changes (thinking both K-jet and L-jet here). On my both my M30 and M10 engines, the transformation to sidedraft Webers was phenomenal...of course on my M30 it was from dual downdraft Zeniths. With a longer duration, high lift cam, higher compression pistons, porting, etc, the FI (and small carbs in M30 case) had to be ditched. My M10 E21 was putting out about 60% more power than stock, so there was no way for the K-jet to handle such. My M30 was putting out about 40% more than stock, and the triple Webers were super easy to tune (and a bear to synchronize ).
__________________
Current Stable:
2024 G20 M340i Melbourne Red/Cognac
2019 F87 M2 Competition 6MT, LBB, slicktop, exec pkg
2007 E91 328i Silver, slushbox, Eibach fr/E93 M3 rear sway bars, ARC-8
Appreciate 2
CanAutM321116.50
Karmic Man1996.00