ungeheuer
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« Reply #45 on: January 18, 2011, 10:41:50 PM » |
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Quick update: Or a non-update really. After 4 months of running the AT-100 Dual Autotune I have nothing much to report. All working really well, I'm very pleased with the outcome [moto]. Its been interesting figuring it all out - I especially stressed over my AFR tables, but needlessly so in the end  . PCV + Autotune has proved to be an entirely viable alternative to PCV + Dynotime in my experience  . |
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Ducati 1100S Monster + Ducati 1260ST Multistrada + Moto Guzzi Griso 1200SE
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greenmonster
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« Reply #46 on: January 19, 2011, 03:53:54 AM » |
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These are you A/F targets? Your own or found or recommended values? |
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M900 -97
MTS 1100s -07
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koko64
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« Reply #47 on: January 19, 2011, 01:51:28 PM » |
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not really
at least with the autotune you can get predictable power/fuel efficiency
with the pc v only. you are only guessing that you are hitting the power afr or FE afr
or think about it this way.
let's say you are making a commuter bike
hit 14.7 afr across the board.
or a race bike.
12.8 across the board.
what we are trying to do is creat a map that is a generic 'road' map.
as you get into setting up your gears you'll be able to further tweak it.
it think about city traffic. you're typically in 2nd gear. no shifting so you will want useable power with good fuel economy say 13.6
but your fav road you find yourself shifting through the 4-5-6 gears on the high revs... so you want the lower 12 range. fuel economy be damned
Absolutely. I think Raux has tuned before! It's tuning for the variables of the real world. Love what you're doing Unge. Autotune = On board Real time dyno tune. |
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2015 Scrambler 800
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koko64
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« Reply #48 on: January 19, 2011, 02:00:18 PM » |
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as you ride more with the newer map. your butt dyno will tell you.. well i'm not getting enough power on the highway for passing.
so take note of the rpm/gear/throttle combo you are using and adjust yoru AFR down in those regions. basically shifting your chart around.
the unit corrects for the new feel you want.
if you had a dyno. you would do the same thing. The dyno would kick out your afr map and the idea would be to smooth it out, giving you a smoother tq curve and more useable power.
the autotune skips that. YOU create the smooth AFR curve. the pc adjusts the fueling to match. so your smooth tq curve is easier to build.
It's actually quite surprising how much fuel is required for those times when you really ask for alot of power under acceleration and how inappropriate that amount of fuel is for low load cruising. Sounds like Autotune lets you have it all under every condition. Does Autotune allow for injector style 'accelerator pump' mapping? |
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2015 Scrambler 800
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Raux
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« Reply #49 on: January 19, 2011, 02:47:18 PM » |
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Absolutely.
I think Raux has tuned before!
nope not yet. just theoretical stuff. |
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greenmonster
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« Reply #50 on: January 19, 2011, 03:51:37 PM » |
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Sounds like Autotune lets you have it all under every condition. it is looking for AFR. it then sends a signal to the PC V to adjust the map fuel percentages to match that target AFR. Autotune does what the A/F lookup table directs it to do. You still have to choose the A/F targets yourself. Does Autotune or PC V have any logging possibility? |
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M900 -97
MTS 1100s -07
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Ahks
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« Reply #51 on: January 19, 2011, 06:28:40 PM » |
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Does Autotune or PC V have any logging possibility? the LCD-200 accessory can log what goes on in the PCV... The Dynojet LCD-200 Display allows you to view real time data, log data being displayed, and store data for Dynojet products. reading the manual for it... It seems to log at least some of the important data for DIY, not sure about this though as the manual doesn't show every data point logged. |
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ungeheuer
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« Reply #52 on: January 20, 2011, 01:42:12 AM » |
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These are you A/F targets?
Your own or found or recommended values?
My own - with a little help from Raux and from much studying of AFR tables for other roadgoing bikes, since there was nothing out there specifically for M1100. Although I think I've varied it slightly since then - a little less lean in the mid-range. Guess I should post up my final AFR table for anybody who is interested  . |
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Ducati 1100S Monster + Ducati 1260ST Multistrada + Moto Guzzi Griso 1200SE
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greenmonster
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« Reply #53 on: January 20, 2011, 04:12:31 AM » |
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the LCD-200 accessory can log what goes on in the PCV... But not the Lambdas I presume? |
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« Last Edit: January 20, 2011, 04:14:44 AM by greenmonster »
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M900 -97
MTS 1100s -07
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ungeheuer
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« Reply #54 on: January 20, 2011, 05:43:04 AM » |
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Does Autotune or PC V have any logging possibility?
But not the Lambdas I presume?
I dont understand the question really....... See if this is the answer: When you cable up to a laptop to your PCV you can view the Autotune "trim" values and then choose whether to "accept" those trims so as to modify the base mapping accordingly. Or you can - as I now often do - simply view and do nothing. |
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Ducati 1100S Monster + Ducati 1260ST Multistrada + Moto Guzzi Griso 1200SE
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greenmonster
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« Reply #55 on: January 20, 2011, 08:10:58 AM » |
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I dont understand the question really If you can log the Lambda values? To see what Injector durations actually give you in A/F numbers, regardless your A/F lookup table? |
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M900 -97
MTS 1100s -07
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Ahks
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« Reply #56 on: January 20, 2011, 08:11:22 AM » |
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I think he was asking of the LCD unit would log the readings from the o2 sensors. And I don't have an answer for that. Also by logging the data in a format that we can read in a spreadsheet (the lcd units logs can export to CSV that we can import into excel and do all kings of fun stuff with) and can subsequently graph we can get different information out of the... information :p If you want a long read on what data logging with an "auto tune" type application can lead to give this a read. It's about a different product on a different bike. But theory translates.  |
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Raux
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« Reply #57 on: January 20, 2011, 10:04:45 AM » |
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when you start talking about logging lambda sensors and the rest that's that a dyno does.
but the lambda log in theory with a bike with autotune will read exactly what you put on your autotune map.
that's if I understand the autotune correctly
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Ahks
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« Reply #58 on: January 20, 2011, 11:11:19 AM » |
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when you start talking about logging lambda sensors and the rest that's that a dyno does. Theres actually an aftermarket solution for tuning Harleys that logs everything directly off the ECU (including what the narrowband o2 sensors see) and then suggests changes to your map (via an application that analyzes the logs) and can then reflash the ECU with your changes. It's the most comprehensive DIY tuner I've ever seen for a vehicle, besides the obvious aftermarket ECU replacement options. It is actually a huge reason I haven't completely ruled out a Harley as my next bike. I like torque too :p |
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loopsrider
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« Reply #59 on: February 19, 2011, 06:31:18 PM » |
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Spent the winter looking and finally scored a new Autotune AT-100 for $150 I may do a few dyno pulls just for shits and giggles. One OEM....one with just the PCV... One with PCV and AT-100. I'll be running the stock ECU with both 02 sensors operational (to begin with) so I guess I'll be welding two bungs into the exhaust. I'll post up the results when I get things done.... |
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