sorting out my proflo, one issue

[Bruce]

Assuming you have the tuning doc., look at the timing table.
You might get a better idea of what your timing table should look like.
Timing needs to be right on with a cam that big.
If your still having probs after that send me a copy of the table you've
been using
Bruce



From: "Ross Corrigan" <280zx at home.com>
Subject: sorting out my proflo, one issue
> The 'issue': 'rough' possibly stumbling from 1000rpm on up to 2000 rpm at
> mild to mid throttle (ie. if WOT from a stop it's fine and hauls
ass)....if
> not WOT from idle and then throttle fed in the whole car shakes as it
> 'fights' to 2500rpm or so and then runs fine.
> I tried each of the following as an alteration to the base chip, resetting
> to the base chip b/t each list of points
> -I've raised the global fuel modifier by 2%/4%/6% right on up to 20% with
> no change.
> reset
> -raised the fuel at 12" vaccuum by 6% at 1000rpm/2000rpm/3000rpm, no
change
> reset
> -raised spark by 6 degrees at 1000rpm/2000rpm/3000rpm, no change
> reset
> -decreased global fuel modifier by 2%/4%/.......on up to -14% for
> 1000,2000,3000 rpm (it smooths the curves b/t the points I give it and the
> ones unaltered)
>
> (I only got it running 2 days ago and am now driving it to work.  I really
> HOPE to get the o2 sensor installed this Saturday which should help me
know
> more......the system won't calculate an a/f but it does have a rich/lean
> light for some help....)
>
> Any ideas on what it can be?  At cruise it'll have b/t 20.5-22 " vaccuum
> depending and in idle out of gear it's at 17-18" vaccuum and once in gear
> stopped it drops to 15.5-16" of vaccuum (idle isn't so steady....I'm
> thinking it's due to one exhaust pipe being more restrictive so I KNOW one
> side runs richer than the other, older plugs said that steadily).
>
> It's sitting at 25 degrees spark at idle as well.
>
> Thanks in advance.
> Ross Corrigan  /  Vancouver, Canada      , yes 4.11 R200's once again
available
>
> Ahh, finished with that inferno of work and returning back to the lifelong
> ahem, physics experiments :) ) )
>
> mailto:280zx at home.com      ICQ # 11549358
> http://207.212.212.139/~corrigan/gearheads/pics/wheels/sirbg.jpg    where
a
> Z belongs
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