I cant wait to see the results Keith, down the road (hopefully next
year so we don't have to wait long) with the ideal heads, intake plenum
and EFI, the before and after hp/tq should be intriguing
I also cant wait to see the current setup play out, come on now
make it happen in Aug :):)
Joe :)
Keith Turk wrote:
>A Race day Non Stock EFI is going to start at around. 5k and work up to
>your personal limit.... there are even guys like Dave... who specialize in
>mapping the fuel flow exactly for load and rpm.... and they can be
>pricey... and the Dyno bill can be steep....( I need to thank Dave... as
>he's doing ours as part of the team )
>
>What you really get is the ability to absolutely control the Fuel/air
>ratio... and Nothing else even comes close to doing this. Not Mechanical
>injection, or a Carburetor.... no matter how many circuits.... Until you
>can measure and quantify the O2/ water temp/ boost/ so on and so forth and
>do it .... many times a second... there is no way you can truly measure and
>deliver the correct amount of fuel to the engine.... So everything other
>then EFI is just getting Close...
>
>Gary... Your Statement about Wide Open Throttle was interesting to me.... I
>found with the Data Acq that I spent Very little time actually at WOT last
>year.... 70-80% was the average for the first 2 miles. What that means is
>I was having to drive the car.... ( now here's a concept )..
>
>What Dave just discovered on the Dyno was that the Carb I'm running doesn't
>like that with the heads that I have.... they just don't have the port
>velocity to flow air fast enough to pick up the Main Jets in part throttle
>conditions... consequently the motor had a tendency to run Lean in that
>range.... ( got the Pistons to prove it.. ) With EFI this isn't an
>issue.... you program it.. map it and the system does the rest..... I'd
>have still had to drive an ill handling race car... but the motor would
>have survived until we had the handling fixed....
>
>Now if that isn't a Lesson for you.... I don't know what is....
>
>Next Big Step for me is EFI.... it's simply not an option this year.. and
>we now know the motor MUCH better and it's characteristics so we can plan
>around that for now.
>
>Just figured I oughta share some expensive lessons
>
>Keith
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