Does a throttle bodie setup still need an afm?

[BenR]

I do mapping on the engine dyno, chassis dyno and road mapping, in all 3 cases i find decent resolution highly beneficial. Interpolation is at best a means to smooth areas between known breakpoints, it is not a solution to poor resolution or mapping since it is but a linear scale between 2 points. The less your ecu has to interpolate between points, the more reliable and accurate the map is.

And MS is better than carbs, i bloody well hope it is. If you have an injection system what is worse than carbs i would throw it striaght into the bin. And yes VEMS is a MS based project, but it is now better, easier to setup, much nicer for the customer to see and cheap. But i wouldnt put MS on the same line as DTA primarily because the megatune software is crap and very basic.

As for dynojet, i never map on an inertia dyno just because its pointless.

I would say that if people spend all the time solving an injection system, then go out and do a half arsed mapping attempt where they rely on interpolation, well i dont see a point in it at all. Sure, it'll be ok on a stock engine where there are no stresses and large null zones of safety, but on a performance engine, its just a bad idea from the start.