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I think the reason you have not received a definitive
answer is that - "it all depends". Either system, well-tuned,
will beat a poorly tuned set up of the other system. Also it depends on
your intake system, more turns and twists would favor an EFI which is not having
to carry fuel in the mixture through those turns while a short straight stack
wouldn't hurt the carb system and wouldn't benefit the EFI.
My personal opinion is that the choice it has to do
more with other factors than a potential difference (if any) in power
output. The power output difference of a well set up carb
and EFI (in our application) is likely un-noticeable unless you
put the on a dyno.
If you don't feel comfortable around electronics,
CPUs, etc then a Carb would likely have more appeal. If you like to have
more control over fuel parameter at all stages, then EFI may have more
appeal.
My personal (but limited) experience with trying
to tune a Webber carburetor with all its different jets and air valves
seem to require some magical understanding and communion with the Webber whereas
the EFI seems simplistic in comparison. Again, just my impression, others
who have had challenges with EFI may beg to differ {:>)
So, I don't think you are going to get (not certain one
even exists) a definitive answer to your question, Kevin (opinions, yes
{:>)).
Hummm, a Renesis, does this mean you are back in the
rotary game?
Ed
----- Original Message -----
Sent: Monday, July 23, 2007 2:01 AM
Subject: [FlyRotary] last time, i promise
- carb vs EFI
I still never got an answer to my original
question; how much more power comes from EFI vs. carb? or is
it a case that efi is just better tuned at all rpms since it has so
many easily controllable parameters? does efi produce an optimum mixture
and finer fuel droplets that can't be matched by the carb? if it does
produce more complete burning and efficiency, how much? I hear these
type stmts, but never numbers. are we talking 5%, 10%,
20%? kevin (renesis in my future
:-)
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