Hi there guys,
I am in need of some info on the ignition for a 2.7 M20 as found in the e28 525e with the lower rpm crank. I need to know what sort of advance the ignition runs (as it shoudl be MUCh less than a normal engien at a guess) and some information about why and how exactly it differs from the 2.5 M20 engines which rev normally, for a uni lab report as I am making reference to it as BMW are one of the only manufacturers to employ this kind of petrol technology for economy.
Any help is much apreciated - thanks, jonmsm
525e 2.7 M20 engine - info needed
Moderator: martauto
-
jonmsm
- E30 Zone Regular

- Posts: 673
- Joined: Fri Apr 15, 2005 11:00 pm
1986 e28 M535i (gone and missed)
1988 e30 320i cab (full resto STILL in progress)
1996 Volvo 850 T-5 estate (280bhp Turbo Nutter), T-5R (my precious)
1966 Fiat 850 saloon & 1970 Sport Coupe
C1 (go-kart)
1988 e30 320i cab (full resto STILL in progress)
1996 Volvo 850 T-5 estate (280bhp Turbo Nutter), T-5R (my precious)
1966 Fiat 850 saloon & 1970 Sport Coupe
C1 (go-kart)
-
Ant
- Retired Team Member

- Posts: 10496
- Joined: Tue Dec 21, 2004 11:00 pm
- Location: PD+E dept :D
it has smaller bore intake for good torque, smallish valves for the capacity also a very tame camshaft spec.
its a high comp unit combined with all the above and a long stroke to give excellent low end torque, and thus good economy
Dont know what else to add TBH dude.
its a high comp unit combined with all the above and a long stroke to give excellent low end torque, and thus good economy
Dont know what else to add TBH dude.
Product Development and Endurance for Delphi.
Original performance chips, original works not unlicensed copies
Email FTW
Original performance chips, original works not unlicensed copies
