Question about WOT table in $8D bin
Len Sabatine
sabatine at epix.net
Sat Nov 18 15:04:53 GMT 2000
How about 11.802 to be exact. That was 2 seasons ago.
Stock GM calibrations are not so bad and a really great spring board
to begin making a hot rod. There's much to be considered.
:) Got an SB Comp Elim Eng over in the corner of the assembly room
that would put my '97 Z28 car into the 9s. It wouldn't be very streetable.
It ran 7.60s in a 2400 lb car.
No , there aren't any 9 second adjustments in programming , unless you
have 9 second Hardware to match. Commercial reprograms make lots of
hype and impressive "Dyno " numbers. Unfortunatly , many of these
tricks aren't worth squat...... P.T. Barnum was right on the $. :)
Len
>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
>| >| >> >
>| >| >> >-----------------------------------------------------------------
>| >| >---
>| >| >> >--------
>| >| >> >To unsubscribe from gmecm, send "unsubscribe gmecm" (without the
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>| >| >> >in the body of a message (not the subject) to majordomo at lists.diy-
>| >| >efi.org
>| >| >> >
>| >| >
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>| >| >
>| >
>|
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