Hey Bernd,
I think you are talking about the old days, carb #'s are now a little as
$250.00
Scott
> From: "Bernd D. Ratsch" <bernd@texas.net>
> Reply-To: dakota-truck@buffnet.net
> Date: Mon, 28 Jan 2002 15:17:33 -0600
> To: dakota-truck@buffnet.net
> Subject: DML: RE: Re: Hyper Speed Controller
>
>
> The charts were WOT runs for HP and TQ figures....but as I said, the A/F
> was around 15.xx across the normal light throttle rpm band.
>
> The factory O2 sensor is also replaced with the one included in the kit.
>
> Snake-Oil?? Hehehe...explain the CARB EO# (minimum $10K for this), the
> HP gains, and the performance gains?
>
> (My parents used to tlel me this: "Don't knock it until you try it".)
>
> - Bernd
>
> -----Original Message-----
> From: owner-dakota-truck@buffnet.net
> [mailto:owner-dakota-truck@buffnet.net] On Behalf Of Shane Moseley
> Sent: Monday, January 28, 2002 2:59 PM
> To: dakota-truck@buffnet.net
> Subject: DML: Re: Hyper Speed Controller
>
>
> That chart doesn't look like "light throttle acceleration" (not even
> close). In fact, it looks like the majority of WOT dyno run charts that
> I've seen. Only WOT (or at least heavy throttle accel) would explain
> the lack of data points at or near the same MPH reading. How else could
> you explain the greater than 100mph data points? Cruise conditions
> imply at or near the same mph (or vacuum) readings.
>
> Besides, I don't put alot of stock in dyno charts anyway. Your last
> comment intrigues me tho. Especially due to the fact that I have NEVER
> seen anything other than a near perfect 14.7:1 A/F on EVERY (late-model,
> computer-controlled, modded or stock) vehicle I've tested. Your results
> I have to question because every vehicle maker (producing vehicles made
> to be used in most countries) is mandated by the federal governments to
> come as close as possible to 14.7:1 A/F due to the catalytic converter
> efficiency issue.
>
> Almost all my tests were done with either a wide-band or a narrow-band
> O2 sensor in the exhaust stream. The tests were conducted on the road
> (cruise control on and set at around 55mph) over a 2+ hour period
> datalogging the values using either a scan tool or data acquisition
> equipment sampling at a rate of 200+ times per second. The 2+ hours
> worth of data when averaged, yielded almost exactly 14.7:1 A/F EVERY
> time. Since this agrees w/everything I have read (as well as the
> federal mandate), it didn't raise any suspicion (like your data).
>
> The basis of my initial post was about the validity of the "HyperSpeed
> Controller" and its ability to change A/F ratio during cruise conditions
> (not enrichment, or WOT modes) to some arbitrary value set by the user.
> Considering that the factory's narrow-band O2 sensor is all but USELESS
> when reporting ANYTHING other than richer or leaner than stoich (14:7:1
> A/F), I stand by my assertion that it is "snake oil".
>
> Study this document by the SAE (whom I base my assertion on). Pay
> particular attention to the frequency response chart for the narrow-band
> O2 sensor. By its very definition, data outside this "narrow band" of
> response is virtually useless and in practice varies greatly from sensor
> to sensor.
>
> http://www.sts.sae.org/membersonly/techinfo/servicetech/oxygen13-17.pdf
>
> Latr,
>
> Shane
>
>
> "Bernd D. Ratsch" wrote:
>
>> Here's the A/F chart from a 2001 R/T (basically stock with minor
>> bolt-ons).
>>
>> These were dyno runs performed on a brand new (3 month old) Dynojet.
>>
>> http://www.speedtweaks.net/images/2001RT.pdf
>>
>> Obviously, they were HP baseline runs (as you can see in the A/F
>> readings), but the 15.x figures were normal during light throttle
>> acceleration.
>>
>> I have yet to see a perfect 14.7:1 A/F on any vehicle.
>>
>> - Bernd
>>
>> -----Original Message-----
>> From: owner-dakota-truck@BUFFNET.NET
>> [mailto:owner-dakota-truck@BUFFNET.NET] On Behalf Of Shane Moseley
>> Sent: Monday, January 28, 2002 6:06 AM
>> To: dakota-truck@BUFFNET.NET
>> Subject: DML: Re: Hyper Speed Controller
>>
>> Again, all factory vehicles do indeed run at 14.7:1. This is a
>> federal mandate. The narrow-band O2 sensors ONLY function is to
>> indicate leaner or richer than the desired 14.7 to 1 ratio. Buy an
>> A/F gauge and you can watch it visually. Catalytic converter
>> functionality would be severely degraded if this were not the case.
>> In fact, it would melt down also at least on the rich side of stoich.
>>
>> At WOT, mine runs between 12.0-12.7 per the factory calibration. This
>
>> was verified w/a wide-band O2 sensor.
>>
>> Not doubting your results - just stating fact. Maybe its your test
>> equipment - what you using? If dyno - whats their equipment? How old
>
>> are their wide-band sensors? Have them do a free-air, or immerse in a
>
>> stream of known gas like propane.
>>
>> Latr,
>>
>> Shane
>>
>> "Bernd D. Ratsch" wrote:
>>
>>> Actually Shane, the trucks I've tested don't run at 14.7:1...they
>>> run at 15.1-15.3:1. Under WOT, it's not 12.5:1 either...more at
>>> 13.2-13.4:1.
>>>
>>> - Bernd
>>>
>>> -----Original Message-----
>>> From: owner-dakota-truck@BUFFNET.NET
>>> [mailto:owner-dakota-truck@BUFFNET.NET] On Behalf Of Shane Moseley
>>> Sent: Sunday, January 27, 2002 9:46 PM
>>> To: dakota-truck@BUFFNET.NET
>>> Subject: DML: Re: Hyper Speed Controller
>>>
>>> One thing I don't understand - 14.7:1 under normal cruise is what
>>> every factory vehicle's PCM is doing already. How is the HyperSpeed
>
>>> controller supposed to help? Furthermore, the factory tunes WOT to
>>> be
>>
>>> around 12.5:1 and is non-adjustable especially since the PCM is
>>> ignoring the O2 sensor while in that mode of operation (WOT).
>>>
>>> Sounds like snake oil to me.
>>>
>>> Bernd, your own track results show a slower ET w/the HyperSpeed
>>> controller in your before/after comparisons.
>>>
>>> Track Times:
>>>
>>> Before: 14.55 @ 96.01mph
>>> After: 14.65 @ 97.02mph
>>>
>>> What gives?
>>>
>>> Latr,
>>>
>>> Shane
>>>
>>> "Bernd D. Ratsch" wrote:
>>>
>>>> Actually, it's for just about any vehicle with an O2 sensor (or
>>>> two).
>>>>
>>>> It monitors the O2 signal (we'll use A/F for ease of
>>>> understanding) and corrects it to 14.7:1 under normal cruise and
>>>> 12.0:1 under WOT (WOT is adjustable +/-1.0).
>>>>
>>>> Again, the final product will be ready in 90 days (this is the one
>
>>>> with the USB port).
>>>>
>>>> - Bernd
>>>>
>>>> -----Original Message-----
>>>> From: owner-dakota-truck@BUFFNET.NET
>>>> [mailto:owner-dakota-truck@BUFFNET.NET] On Behalf Of Tim Althoff
>>>> Sent: Wednesday, January 23, 2002 10:01 PM
>>>> To: dakota-truck@BUFFNET.NET
>>>> Subject: DML: RE: Hyper Speed Controller - Working and noticeably
>>>> better already
>>>>
>>>> ok bernd...I need to take out a little stress (I am supposed to
>>>> have
>>
>>>> my Computer science program done by Friday at 5pm and have almost
>>>> nothing...I NEED TO BUY SOME NEW TOYS!!!
>>>>
>>>> is this for highly modded or could I get some results from my
>>>> lightly modded 3.9. (cold air, TB, ignition, exhaust, 180*,
>>>> modified intake, locker...soon to be 3.90 gears, elec fan, pulley.
>
>>>> How do you adjust it? I know laptop but how adjustable is it?
>>>>
>>>> most importantly what cost going to look like? thanks
>>>>
>>>> Tim Althoff
>>>> 99 RC Dak w/ V6 5-speed
>>>> http://go.to/yllwdkta
>>>>
>>>> -----Original Message-----
>>>> From: owner-dakota-truck@BUFFNET.NET
>>>> [mailto:owner-dakota-truck@BUFFNET.NET]On Behalf Of Bernd D.
>>>> Ratsch
>>>> Sent: Wednesday, January 23, 2002 4:26 PM
>>>> To: Dakotart@yahoogroups.com
>>>> Subject: DML: HyperSpeed Controller - Working and noticeably
> better
>>>> already
>>>>
>>>> Yup...the HyperSpeed Controller (Proto-Type Rev-II) is installed
>>>> and
>>
>>>> functioning as claimed. Much better throttle response, no overly
>>>> rich
>>>
>>>> (or lean) smell from the tailpipe (home-brew A/F meter...aka:
>>>> nose),
>>
>>>> and the kicker is the lean spot caused by the supercharger at 1-2#
>
>>>> boost under 1/2-3/4 throttle...it's not there anymore.
>>>>
>>>> It took about 50 miles for the PCM to relearn the new (corrected)
>>>> settings from the HyperSpeed controller (reset the PCM after the
>>>> initial
>>>> installation) and adjusted the high-end enrichment a little bit
>>>> (will need to put back to normal in about 50 more miles or so).
>>>>
>>>> The final box will be released in 90 days with a USB port,
>>>> completely sealed box (for under the hood installation), and
>>>> software for your laptop. This will allow the end user to
>>>> fine-tune
>>
>>>> the fuel curve (across the RPM band in small increment as
>>>> well)...this means programmable and automatic. Yes..you can
>>>> adjust on the fly (while driving).
>>>>
>>>> I put some pictures of the Proto-Type installation on the
>>>> SpeedTweaks website (Engine Controls/HyperSpeed) but keep in mind
>>>> that the final controller will be Plug and Play with your factory
>>>> O2
>>
>>>> sensor(s). Yes...it replaces your stock (forward) O2 sensor(s).
>>>> With all this said, it's also 100% SMOG LEGAL (CARB EO#).
>>>>
>>>> I'll be heading to the Dyno shop this Friday to get some HP and TQ
>
>>>> readings, but the butt-dyno already noticed the change...nothing
>>>> else was installed in the mean time.
>>>>
>>>> - Bernd
>
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