sorting out my proflo, one issue

Ross Corrigan 280zx at home.com
Fri Jul 13 04:30:21 GMT 2001


At 09:14 PM 7/12/01 , you wrote:

>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

Thanks Bruce, I"ll recheck your tuning writeups and that timing 
table......AIR that writeup was about a car not so different from my 
own.  I sure wish I could get hardcopy/graphs/tables of the edelbrock ones 
put into this chip.....I have done some reading from passenger side with my 
wife driving and obviously somewhat while I was driving but it's not good 
enough.....

I'll get back after I've done my homework....edebrock just asks me how much 
I want to alter from 'zero' but doesn' tell me what the actual settings are 
so unless I see /interpret the display at the right time I don't know from 
which point exactly (ie. 20 degrees or 30 degrees) I'm going up or down......





>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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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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