06/07 YEC FI Matching System - ETV Values - Help - Yamaha R6 Forum: YZF-R6 Forums
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post #1 of 13 (permalink) Old 11-21-2012, 12:27 AM Thread Starter
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06/07 YEC FI Matching System - ETV Values - Help

I've recently bought a 2007 R6 ex-racebik in supersport setup, lots of YEC goodies, ECU, wiring loom, bell mouths, generator, cams, big radiator etc. It's a lovely bike with loads of spares.

I'm looking at the configuration setup on the ECU and trying to understand the ETV Values.

At this is a 2007 machine, there are two fields. Comp ETV1 and Comp ETV2. I understand its for opening or closing the ETV for softening the torque on acceleration or reducing the engine breaking.

But which ETV value is for which? If I was to follow the 2008+ ECU setup, ETV1 is acceleration and ETV2 is engine braking. Even the YEC manual doesn't make it clear (as per usual!)

Does anyone have any experience with this?

Thanks
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post #2 of 13 (permalink) Old 11-21-2012, 06:54 AM
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Re: 06/07 YEC FI Matching System - ETV Values - Help

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Originally Posted by Rich_R View Post
I've recently bought a 2007 R6 ex-racebik in supersport setup, lots of YEC goodies, ECU, wiring loom, bell mouths, generator, cams, big radiator etc. It's a lovely bike with loads of spares.

I'm looking at the configuration setup on the ECU and trying to understand the ETV Values.

At this is a 2007 machine, there are two fields. Comp ETV1 and Comp ETV2. I understand its for opening or closing the ETV for softening the torque on acceleration or reducing the engine breaking.

But which ETV value is for which? If I was to follow the 2008+ ECU setup, ETV1 is acceleration and ETV2 is engine braking. Even the YEC manual doesn't make it clear (as per usual!)

Does anyone have any experience with this?

Thanks
if the bike was pretty well set up, and had THAT amount of stuff (cams, rad, etc) and the rider didn't mess with etv1, i would leave it alone. But honestly, i have no idea what it does, i have never adjusted it.

Yes, etv2 is engine braking .. and adding a value in the cells from 1-30 will make it slip more. as in "0" is the most engine braking, 30 would be near free wheeling into the corners. Do not put any values in the 4000 rpm row.

if you want clear answers on this stuff, register on the Graves motorsport forum: http://www.gravesport.com/forum/foru....php/7-Engines

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post #3 of 13 (permalink) Old 11-21-2012, 07:18 AM Thread Starter
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Re: 06/07 YEC FI Matching System - ETV Values - Help

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Originally Posted by MELK-MAN View Post
if the bike was pretty well set up, and had THAT amount of stuff (cams, rad, etc) and the rider didn't mess with etv1, i would leave it alone. But honestly, i have no idea what it does, i have never adjusted it.

Yes, etv2 is engine braking .. and adding a value in the cells from 1-30 will make it slip more. as in "0" is the most engine braking, 30 would be near free wheeling into the corners. Do not put any values in the 4000 rpm row.

if you want clear answers on this stuff, register on the Graves motorsport forum: http://www.gravesport.com/forum/foru....php/7-Engines
Yes the bike is set up well, but personally it need a tweak here and there for it to suit my riding style and conditions (the bike is an import and set up in the UK). But I also want to fully understand it.

ETV values for the 06/07 YEC ECU are -100 to +100% (for both ETV's), not 0-50 (or 1-30 as you state)

Also, the there is an ETV map, where it selects either ETV1 or ETV2 depending which gear its in.

Thanks for the Graves link, I've jut registered now.
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post #4 of 13 (permalink) Old 06-26-2015, 03:07 PM
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I have the same question, did you solve this?... Regarding range for the etv 2.
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post #5 of 13 (permalink) Old 06-26-2015, 08:33 PM
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Re: 06/07 YEC FI Matching System - ETV Values - Help

for whatever reason, the guy didn't believe me.. or as he stated, the 06-07 is different. My bike is 08, and on the 08, there are TWO etv tables. one is an acceleration table (that you can change the rate of butterfly opening as you roll on throttle.. "0" is 1:1) It's KIND of like traction control.. in a way. If you put values there, it won't open the gas as quickly as you are actually turning the throttle. kind of nice to have values in the zero% throttle area at some tracks..

the 2nd etv table is engine braking.. It regulates how fast the butterflys close when you shut the throttle. bigger number, the slower they close and gives the sensation of less engine braking. So bigger number, more engine braking REDUCTION..


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Silkolene, JenningsGP, Engine Ice, Sharkskinz, Pit-Bull


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Last edited by MELK-MAN; 06-26-2015 at 08:35 PM.
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post #6 of 13 (permalink) Old 06-29-2015, 01:34 AM
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Re: 06/07 YEC FI Matching System - ETV Values - Help

Yes you are correct!
However itīs different for the 06-07. The range here is -100 to 100 and even more confusing on the left side of the table thereīs lines not gears 1,2,3...

So how does the range work and what does these lines mean?

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post #7 of 13 (permalink) Old 07-01-2015, 11:40 AM
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Re: 06/07 YEC FI Matching System - ETV Values - Help

On the "ETV Map Select" you can choose what map you want for each gear.
The left line on the maps are the opening of the throttle!
I am going to try out some different maps next week.
Didn't find any maps on the internet.
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post #8 of 13 (permalink) Old 07-01-2015, 11:47 AM
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So then comp ETV1/2 are fuel maps and not acceleration/engine brake?
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post #9 of 13 (permalink) Old 07-11-2015, 11:15 AM
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Re: 06/07 YEC FI Matching System - ETV Values - Help

They are engine braking maps.
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post #10 of 13 (permalink) Old 07-11-2015, 11:28 AM
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Okey, I think I got it. Testing is needed iguess.
If you have a start for a map I'd be happy if you shared it , difficult/expensive to do a lot of testing with the race bike
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