Question about WOT table in $8D bin

[NRGZ28]

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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| >efi.org
| >> >
| >
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