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[minimc]

Quote: Originally Posted by chiptuning

Not strictly true. 3 (simplistic) ways to increase bhp at same rpm -

1. Optimise AFR for given amount of air by remapping fueling.
2. Optimise AFR for given fueling by increasing the amount of air, assuming ECU won't compensate for this.
3. Optimise ignition timing for given octane rating.

Combinations of all 3 are normally used, but the point is that increasing bhp does not necessarily mean increasing air flow. That's how you tune a normally aspirated engine with just an ECU remap - adjust the fueling and ignition - since air flow stays the same.

Adam.

I'm baaaaaaack! Woo Hoo!

Hope everyone had a good weekend!? ...and took the right medications/remedies to corrrect thier 'backfire' problems

Adam... if you take my remarks in the context of this discusion you'll see that I'm not in dispute with any of what you've just posted.

My questions regard Roland saying he was using stock ECU/software AND injectors. So this precludes him changing fueling and or timing in the manners you mention.

I think w'ere getting back to where this thread originated - before it spun into a "minimc says Roland can't create X horsepower" thread.