AFM adjustment

[mrzigazaga]

Ahh okay...Thanks....;)

[Wedg1e]

KKson said:

Mark can modify the ECU with external pots so that it is truly adjustable.

That's the easy bit, the hard part is knowing what to do with them, in what order and by how much.

[Wedg1e]

pieeater said:

when i spoke to Mark Adams at tornado he said that fitting a jag afm should release about 12 brake at top end and 15lb/ft

Should, might, possibly.
Having fannied about extensively with a Jag AFM on my 390SE (with much better ports, high-lift cam yadda yadda) I went back to the standard one (yes, same as the 3.5L as most of the 390s were), tuned it by the padding of my arse and got within 20bhp of the mythical 275 it was supposed to make when new.
So even with ECU tweaks I don't see how the larger-bore AFM can make a 3.5L nearly 10% better or that it can even make use of the extra airflow, surely the cylinder heads are still the limiting factor.