Question about WOT table in $8D bin

Fri Nov 17 23:23:23 GMT 2000

You probably would have ran 9s if you made adjustments :)

----- Original Message -----
From: "Len Sabatine" <sabatine at epix.net>
To: <gmecm at diy-efi.org>
Sent: Friday, November 17, 2000 3:00 PM
Subject: Re: Question about WOT table in $8D bin


|     Really ? I managed to run high 11s with '95 Lt1 GM Stock Spark and
Fuel
| calibrations.
|      A4 , NA.
|     Len
|
| >Stock curves suck...    I used the curves from a chip designed for a ZZ4
and
| >I gained almost 4 tenths and 4 miles per hour in the 1/4 mile. Oh well...
I
| >guess I'll just play with I got. Thanx anyway
| >
| >p.s. it's Edmond by the way
| >
| >
| >----- Original Message -----
| >From: <timsiford at hushmail.com>
| >To: <gmecm at diy-efi.org>
| >Sent: Friday, November 17, 2000 11:10 AM
| >Subject: Re: Question about WOT table in $8D bin
| >
| >
| >| Edmund,
| >|
| >| Using my base curves would not be advised.  I recommend beginning with
a
| >| stock base curve.  Why you ask?  My MiniRam intake, AFR heads, bigger
| >exhaust,
| >|  and 112LSA make my VE curves significantly different from stock ...
MUCH
| >| more so than yours.  Your curves will be more similar to the stock
curves
| >| due to the intake style, the heads, and the exhaust that you are
running.
| >|  Not just pulling a 'not sharing' on this one.  You REALLY will be
closer
| >| to the stock curves than my curves.
| >|
| >| Tim
| >|
| >| At Fri, 17 Nov 2000 10:07:07 -0800, "NRGZ28" <euro at lvcm.com> wrote:
| >|
| >| >
| >| >Tim, would you be so kind to show what your VE (ext) table values are
| >| >from
| >| >90-100 kpa ? I got the same cam as you and I'd to at least get a base
| >| >to
| >| >start from when I tune for WOT.
| >| >
| >| >----- Original Message -----
| >| >From: <timsiford at hushmail.com>
| >| >To: <gmecm at diy-efi.org>
| >| >Sent: Friday, November 17, 2000 7:02 AM
| >| >Subject: Re: Question about WOT table in $8D bin
| >| >
| >| >
| >| >> Bob,
| >| >>
| >| >> Using the equation that you extracted from the ANHT hac and plugging
| >| >in
| >| >> my values for 5600RPMs and 80deg C I get ...
| >| >> 6553.6 / ((149 + 58 + 128) * 445) / 256) = 11.25
| >| >>
| >| >> HOORAY!!!!  This is exactly what diacom reports for my setup in this
| >| >range.
| >| >>  This is definitely the formula to utilize.  NEWBIE NOTE: the value
| >| >149
| >| >> was retrieved through a hex editor (Hex Workshop).  Simply using the
| >| >values
| >| >> in TC will not work.
| >| >>
| >| >> Tim
| >| >>
| >| >>
| >| >> At Thu, 16 Nov 2000 17:46:00 -0500, rr <RRauscher at nni.com> wrote:
| >| >>
| >| >> >
| >| >> >
| >| >> >Umm, I just checked the anht hac, and I can't get the equation
quoted
| >| >> >below to give me the same answers as the code.
| >| >> >
| >| >> >Using tables L860D & L8617 @ 80c & 6400rpm, I get an AFR of
| >| >> >11.6:1. Here is the equation using the raw bin values:
| >| >> >
| >| >> >WOT AFR = 6553.6 / ((TBL L8617 + TBL L860D + 128) * 445) / 256)
| >| >> >
| >| >> >w/vals:
| >| >> >
| >| >> >11.6 = 6553.6 / ((138 + 58 + 128) * 445) / 256)
| >| >> >
| >| >> >This is right from the hac and matches the code (I corrected the
| >| >one
| >| >> >table
| >| >> >address in the equation). What are the AFR's when using this
equation?
| >| >> >
| >| >> >Thanks,
| >| >> >
| >| >> >BobR.
| >| >> >
| >| >> >
| >| >> >JN wrote:
| >| >> >
| >| >> >> Wow, in looking at my bin that was modified by a reputable tuner
| >| >originally,
| >| >> >> he has what I calc as a 14.12 AFR at 5200 and a 14.85 at 5600!
| >| > I
| >| >> >guess with
| >| >> >> the miniram I should fatten these up some.  Tim, what do you have
| >| >> >for PE vs
| >| >> >> RPM.  Our motors are similar cams, intake and we both run 30
pound
| >| >> >injectors
| >| >> >> with a 33 pound injector constant.
| >| >> >>
| >| >> >> Jason
| >| >> >> ----- Original Message -----
| >| >> >> From: <timsiford at hushmail.com>
| >| >> >> To: <gmecm at diy-efi.org>
| >| >> >> Sent: Wednesday, November 15, 2000 4:04 PM
| >| >> >> Subject: Re: Question about WOT table in $8D bin
| >| >> >>
| >| >> >> > Bruce,
| >| >> >> >
| >| >> >> > I don't think its as bad as what you are saying.  Please - hear
| >| >> >me out.
| >| >> >> >  I said that the calculation shows that I am running 10.16 AFR.
| >| >> > This was
| >| >> >> > at 5600rpms and a coolant temp of 80deg C.  HOWEVER, the stock
| >| >AUJP
| >| >> >bin
| >| >> >> > has a PE modifier of 7.8 at 4000rpms in WOT %Change in AFR vs
| >| >RPM
| >| >> >and a
| >| >> >> > modifier of 22.7 in WOT %Change in AFR vs Coolant.  This
results
| >| >> >in a
| >| >> >> 10.22
| >| >> >> > AFR.
| >| >> >> >
| >| >> >> > Now, I am NOT running 10.16 everywhere.  I just picked the
highest
| >| >> >point
| >| >> >> > of the curve and reported that point.  I also picked the
highest
| >| >> >point of
| >| >> >> > the AUJP curve and reported that.  Again, the formula I am
using
| >| >> >is the
| >| >> >> > one previously supplied here on the list ....
| >| >> >> >
| >| >> >> > ( 1  -  (( RPM Mod  +  Coolant Mod )  /  100 )  *  14.7
| >| >> >> >
| >| >> >> > I am not concerned about the fueling.  I am close to 128 at all
| >| >> >points
| >| >> >> when
| >| >> >> > driving.  I spent significant time on the VE curves.  The WOT
| >| >%Change
| >| >> >to
| >| >> >> > AFR tables are modified from stock ... but, no so much in the
| >| >levels
| >| >> >but
| >| >> >> > more as to the shape.  The MiniRam doesn't need as much fuel
| >| >at
| >| >> >4000RPMs
| >| >> >> > as compared to the TPI.  However, it does need more at
5600rpms.
| >| >> >> >
| >| >> >> > Tim
| >| >> >> >
| >| >> >> > At Wed, 15 Nov 2000 12:28:20 -0500, "Bruce Plecan"
| >| ><nacelp at bright.net>
| >| >> >> wrote:
| >| >> >> >
| >| >> >> > >
| >| >> >> > >
| >| >> >> > >IMO,
| >| >> >> > >Your running a diesel now.
| >| >> >> > >You have enough fuel that your CR is even up.
| >| >> >> > >At tear down the ring lands will be knocked out and you'll
need
| >| >> >pistons.
| >| >> >> > >Just about beat you have a 160d and within one heat range of
| >| >stock
| >| >> >plugs.
| >| >> >> > >The tip of the plug is acting like a glow plug for lighting
| >| >the
| >| >> >change.
| >| >> >> > >It kinda a typical thing when your at more fuel more timing
| >| >agenda
| >| >> >stuff,
| >| >> >> > >just some guys go that route wastes gas, and tough on parts
| >| >IMO.
| >| >> >> > >No telling what the heads will be like, if (oem) iron probably
| >| >> >cracked
| >| >> >> > >between the seats.
| >| >> >> > >Also, will have more carbon to deal with and more likely to
| >| >burn
| >| >> >an
| >| >> >> > >exhuast
| >| >> >> > >valve.
| >| >> >> > >It's like doing a nitro tune but with gas, eats parts
| >| >> >> > >Bruce
| >| >> >> > >
| >| >> >> > >
| >| >> >> > >> >Just remember you said that <g>
| >| >> >> > >>
| >| >> >> > >> I'll remember Bruce <g>.  But, I'm not a fluke.  I've talked
| >| >> >to several
| >| >> >> > >> other AFR190/MiniRam ownders that are running the same type
| >| >of
| >| >> >spark
| >| >> >> > >advance
| >| >> >> > >> (max).  Now sure about the Air/Fuel ratio they are running
| >| >though.
| >| >> >> > > Will
| >| >> >> > >> be pulling plugs soon to take a gander.
| >| >> >> > >>
| >| >> >> > >> Curious though .... I have a feeling that you think I'm
gonna
| >| >> >blow
| >| >> >> > >myself
| >| >> >> > >> up :-)  Can I pick your mind and ask why?  I know that I
will
| >| >> >> eventually
| >| >> >> > >> lose the bottom end ... but, I don't think that it will be
| >| >PROM
| >| >> >> related.
| >| >> >> > >>
| >| >> >> > >> Tim
| >| >> >
| >| >> >-----------------------------------------------------------------
| >| >---
| >| >> >--------
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| >| >quotes)
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| >| >efi.org
| >| >> >
| >| >
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| >| >
| >
|
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