20v chip 7a

[Stick Insect]

OK, I have barricaded the door and placed a thick book down my trousers, so I am ready for a spanking.

Cheers n

Si

There's bound to be a specialist web site for this sort of thing.................

David

[rs2coupe]

There's bound to be a specialist web site for this sort of thing.................

David

Iam really interested to hear what Minhea has got to offer for the 7A.. I have a very strong motor and would rather increase it's power than swap it for a 20vt.


Where to get Abt or Schrick cams?

[Stick Insect]

http://www.abt-sportsline.de/start/index.php?sprache=d&flash=ok&webid=1

Shrick seem to go through dealers. search for shrick cams in Google and see what it turns up. Probably loads of BMW sites.....

David

[virtuapete]

Paul, the standard one was close to 200 PS, the one with ABT cams (285 degrees duration) has god knows how many but it's quicker than a Honda S2000 on Spa Francorchamps. Maybe 220 PS?

Cheers,

Mihnea

285 degree advertised duration is pretty radical... like a race application and not very streetable from what i know about cam design. To give you a comparison, TT makes a 16V race cam (16V VW 4cyl are nearly identical to the 7A setups, minus a cylinder) which is advertised 288 degree duration. Cam specs are as follows:

Duration @ .050" IN/EX = 244 degrees
Lift = .456" (!!!)
Lobe center = 108 degrees
IN Open @ .050" = 13.4 degrees BTDC

I don't know that anyone would/should try to run that on the street. Still a very nice number of ~220PS though!

Does anyone know wether this chipset was tested on a 7A with the hitachi or newer injectors to get these numbers?