[Wbo2] Using the Bosch WB sensor with L1H1 circuit board

[allen brown]

If you can't dazzle them with brilliance, baffle them
with BS.

Nice try, and still trying to make it sound like you
created the diy-wb and the diy-wb market. 

Al

--- Peter Gargano <peter at techedge.com.au> wrote:

> allen brown wrote:
> >  >We believe our DIY unit, when built, tested and
> >  >calibrated as we describe, are as good as the
> Motec and Autronic units
> >  >you'll pay up to AU$2,000 for.
> 
> 
> Allan, you asked , so I'll reply, but just this
> once, because this is 
> a DIY forum, and most of the answers below relate to
> commercial (ie. 
> non-DIY) units we also sell, and it's not my
> business to be 
> advertising here.
> 
> And list moderator, yes, I will NOT post any more on
> this topic in 
> this forum.
> 
> > That is quite a claim. What have you done to
> verify the accuracy of your 
> > unit? Have you built a gas bench to verify
> response time and accurate 
> > reporting of the AFR? What certified test
> equipment do you have? What 
> > test procedures have you used to verify the claims
> you are making?
> 
> 
> A claim verified by many of our customers with
> Autronic, Motec and 
> many other AFR units.
> 
> When we (tech Edge) first got serious about AFR (mid
> 2003), for 
> testing, we purchased a couple of $7,000 ETAS units.
> We regularly test 
> our own units against their units. We also test
> competitors' products 
> too. Yes, some of our continuing customers have very
> favorably tested 
> our units against 4 and 5 gas analyzers they also
> sell.
> 
> We sell to a number of dyno manufacturers (who badge
> engineer our 
> units) in a number of different countries and they
> provide good 
> feedback to us on the accuracy and response speed of
> our units. We've 
> also sold units, including large repeat sales, to a
> number of high 
> profile US and European engine tuners and
> manufacturers (clearly I 
> cannot say who these organisations are). From this
> feedback, we're 
> happy that our units' response time and long term
> stability is better 
> than most of the commercial units out there, and
> certainly better than 
> some of the semi-professional units costing many
> times more than ours.
> 
> > Have you had your WB unit independently verified
> by certified engineers?
> 
> 
> No, we don't pay people to test our units. I'd
> personally find it 
> difficult to believe someone's claims that "we paid
> ABC to test XYZ, 
> and here's how fantastically well it works"!
> 
> Perhaps someone demonstrably impartial will take on
> the task of 
> independently testing our unit against other units,
> and against a 
> recognised industrial standard.
> 
> We have recently considered getting UL/CSA
> certification, but very few 
> potential customers would require this (and anyway,
> this is an 
> environmental standard, not a "performance"
> standard).
> 
> > What type of environmental testing has been done
> on your units? Are all 
> > of the components used in your product been
> qualified for automotive 
> > use? Are the circuit boards conformal coated? What
> is the temperature 
> > range of the components used?
> 
> 
> We sell a number of units in a number of different
> forms. Here's a 
> short summary showing DIY status, construction (TH =
> Through Hole, SMD 
> = Surface Mount), on-board logging memory size, case
> construction (ABS 
> = Plastic, Al = extruded Al.). and a short feature
> list.
> 
> model  DIY  const.  log mem  case  features
>
---------------------------------------------------------------------
>   2A0   yes   TH      32k     ABS   First LSU DIY
> model (now rev-4)
>   2A1   yes   TH       1M     ABS   updated 2A0 with
> 1 Mbyte memory
>   2B0    -    RH      32k      Al   First non-DIY
> model
>   3B1    -   SMD       1M      Al   professional
> model, LSU 4.9 support
>   2C0    -   SMD       -      ABS   small size
>   2D0    -    TH       -       -    OEM
>   2D1    -   SMD       -       -    OEM, SMD
>   2E0   yes   TH       -      ABS   DIY, inbuilt
> display
>   3H1    -   SMD       1M      Al   professional
> model, DUAL channel
> 
>   LD02 display = DIY
>   LA1  display = SMD
> 
> Clearly, some of the models are intended for DIY
> applications, and as 
> such they are presented and sold as such. Our
> professional models are 
> just that, and are designed, presented, use
> industrial rated 
> components, and are supported as such. We expect
> similar performance 
> and accuracy from our DIY models as from the
> professional models, and 
> have not "dumbed down" our DIY units so we can sell
> a better 
> professional model. Our models are evolutionary, and
> we continually 
> update our hardware and firmware, including adding
> features to "older" 
> models.
> 
> Of course, when we sell a DIY kit, we cannot assure
> the purchaser of 
> the unit's end-result performance because it depends
> in part on how 
> well the unit is constructed, tested , etc. we do
> however offer a 
> "fix-it" service and regularly get "basket case"
> units (soldered with 
> a blow torch?) to fix, which we generally achieve.
> 
> Yes, our new SMD 3.0 range will be conformally
> coated, but we still 
> don't rate them to be used in the engine
> compartment. For over a year 
> now we have sold our cables with a fibreglass
> covering rather than the 
> low cost nylon sheath we originally used.  We don't
> "pot" or 
> encapsulate any of our models because we consider
> repairability a big 
> factor in our designs.
> 
> > Or is it just another 'hobby' product you as so
> famous for?
> 
> 
> I appreciate the compliment. To do justice to your
> question I should 
> explain the journey from "hobby", to where Tech Edge
> is currently.
> 
> Tech Edge's Lambda meter involvement started off
> back in 2002 with a 
> PCB we sold with components, and a DIY display kit
> based on a Jaycar 
> commercial DIY kit. The wideband was basically the
> DIY-WB design, and 
> I intended selling all 24 of the 25 PCBs I had made,
> and then calling 
> it quits. I had this PCB made because a small number
> of the US DIY-EFI 
> community at the time denied me the opportunity to
> buy the DIY-WB PCB 
> that had just been made available to people
> primarily in the USA, and 
> I had wanted to just cover my costs (mostly
> expensive postage charges) 
> by offering a local group buy of parts. Shortly
> after this, I was 
> inundated with request from people to make more PCBs
> and make them 
> available with components. Then people wanted me to
> sell them built 
> and tested units. So, I first contracted someone to
> help me build 
> units, then later I employed people to build, test,
> and ship our units 
> - this was in Mid 2003, and this was when I took my
> OZ-DIY-WB 
=== message truncated ===



		
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