Re: Big cams are better

["nacelp" <nacelp@bright.net>]

Hmm,
I've run 224 @ .050, and that took some tinkering.
By the same token, that was along time ago, before have done the 101 drill.
If nothing else (since this is for off road), there is always the option of
open loop.
I think there is a hac floating around for the 747, in which case probably
by playing with some of the filtering you might pull it off.
I'd been told by some experts that 214 was the absolute limit.
Maybe someone has done a big cam 747, and has more info.
Is this a big emissions cam (er almost legal type?), or just a single
pattern rump rump?
Grumpy


> Does anyone have either practical or theory backed knowledge of the limit
of
> how big a cam a 7747 can be reprogrammed for?  I'm running a 245 duration
at
> .050 lift in a Chevy 350.  It will idle at about 10 in of mg at 850 rpm.
>
> The problem I see is the pressure fluctuation at idle.  I'm using a gauge.
> A MAP signal would be all over the place with that camshaft.
>
> Joe (Bigger IS better) Boucher
> '70 RS/SS Camaro  '93 Suburban
>
>
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