Big injectors + MS hi-res question?

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03-30-2008, 01:25 PM

#21

Joe Perez

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I meant of course for "high" to allude to greatness or elevation, rather than to indicate the smoking of crack.

03-30-2008, 02:07 PM

#22

brgracer

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As always, nice work Joe. I'm glad I brought this topic up b/c I've been wondering about it as well. Can't wait to try these momma jomma 1k guys.

Paul, I only said 1k injectors b/c I just happen to have 1k PnP injectors in hand so figured that I might as well try them to see if I can get it to work for:

#1 not having to spend more $$$
#2 seeing the limits/capabilities of MS hi-res to idle really big injectors
#3 bragging rights

03-30-2008, 04:27 PM

#23

Ben

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Quote:

Originally Posted by Joe Perez

y8s, the MS does indeed seem to extrapolate off the edges of the table. My idle, which is still not 100% perfect, occasionally dips down into the 500-600 range, and even then the fueling continues properly.

Actually, I don't believe this to be the case. It will interpolate between cells, but will not extrapolate beyond the extremes of the table. It just uses the last value in the row/column, even though your load is beyond.

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03-30-2008, 06:08 PM

#24

Joe Perez

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Quote:

Originally Posted by Ben

An interesting and probably correct observation which I'd failed to recognize. Would be easy enough to test were my MS still on the bench and connected to the stim, but suffice it for me that the system does somehow deal with this operating condition.

Perhaps we ought to try lowering our leftmost column to, say, 400 RPM and downscaling appropriately? Or that the fuel requirement is so little different between 400 and 800 that it matters not? The latter, I'd say.