Is the EIO needed for wideband tuning?
11-01-2005, 12:46 AM
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Is the EIO needed for wideband tuning? I have HPTuners and was looking into getting a wideband for more accurate tuning. Do I need the EIO for accurate tuning or is a wideband sensor and a guage sufficient? It would be nice to see my AFR in the HPTuners interface, but is it really needed?
11-01-2005, 06:26 AM
#3
is it needed no...but think about it...how are you going to corralaite that info? Are you going to be somehow majically looking at your rpm gauge & a/f gauge? Or are you going to spend the extra money on an rpm converter where you couldve just spent the money on the eio & had the same thing & BETTER. To say your going to need it isnt true as there are many tuners using a w/b & converter but the eio is better then that option so why not get it?
11-01-2005, 08:55 AM
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Some widebands will let you log data. The sampling rate
on the LM-1 is not the same as the GM data link (12Hz
vs 10Hz) so you cannot just go tick by tick. Still if you
are going after WOT it's certainly feasible to look at them
separately. You just have to be the bridge and do the
interpretation, a bit more tedious.
When you want to things like speed density tuning and
use the actual-vs-commanded AFR as your correction
then you really want the data streams fused and this
is where the analog input functionality really comes in.
on the LM-1 is not the same as the GM data link (12Hz
vs 10Hz) so you cannot just go tick by tick. Still if you
are going after WOT it's certainly feasible to look at them
separately. You just have to be the bridge and do the
interpretation, a bit more tedious.
When you want to things like speed density tuning and
use the actual-vs-commanded AFR as your correction
then you really want the data streams fused and this
is where the analog input functionality really comes in.
11-03-2005, 12:52 AM
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I was actually only looking into WOT tuning, not commanded or SD tuning. Couldnt you just make a WOT run while looking at the gauge and make finite adjustments to the power enrichment table?
11-03-2005, 08:59 AM
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Originally Posted by 00Z28SS
I was actually only looking into WOT tuning, not commanded or SD tuning. Couldnt you just make a WOT run while looking at the gauge and make finite adjustments to the power enrichment table?
was introduced I had already bedded in my PE table and
now I just use it to look at other peoples' vehicles (being
as I haven't been making significant engine mods of late).
Handy, but not necessary. Just another power tool.
But then, show me a good power tool that isn't "necessary"
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11-03-2005, 08:29 PM
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If you use the wideband to emulate a stock sensor, can you take the voltage output in the hp tuners log as accurate wideband data? will it still be inaccurate like the stock readings?
11-04-2005, 08:53 AM
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Not entirely true. You could force the LM-1 to output
on a 0 - 1V scale but with enough slope that some
meaningful mixture data could be extracted (for example,
0V = 18:1 and 1V = 12:1 would leave the center about
15:1 - good enough I expect) and give you 167mV / AFR
unit, which should be able to resolve you into the tenth
of a point range. The noise level will limit how accurate
you can be. You would want to knock down any filtering
so as to not introduce too much lag to the closed loop
operation I think.
on a 0 - 1V scale but with enough slope that some
meaningful mixture data could be extracted (for example,
0V = 18:1 and 1V = 12:1 would leave the center about
15:1 - good enough I expect) and give you 167mV / AFR
unit, which should be able to resolve you into the tenth
of a point range. The noise level will limit how accurate
you can be. You would want to knock down any filtering
so as to not introduce too much lag to the closed loop
operation I think.
11-05-2005, 08:01 AM
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Originally Posted by jimmyblue
Not entirely true. You could force the LM-1 to output
on a 0 - 1V scale but with enough slope that some
meaningful mixture data could be extracted (for example,
0V = 18:1 and 1V = 12:1 would leave the center about
15:1 - good enough I expect) and give you 167mV / AFR
unit, which should be able to resolve you into the tenth
of a point range. The noise level will limit how accurate
you can be. You would want to knock down any filtering
so as to not introduce too much lag to the closed loop
operation I think.
on a 0 - 1V scale but with enough slope that some
meaningful mixture data could be extracted (for example,
0V = 18:1 and 1V = 12:1 would leave the center about
15:1 - good enough I expect) and give you 167mV / AFR
unit, which should be able to resolve you into the tenth
of a point range. The noise level will limit how accurate
you can be. You would want to knock down any filtering
so as to not introduce too much lag to the closed loop
operation I think.
