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SUGO CDI for Borut... (ignition curves)

Started by 41juergen, March 25, 2013, 04:24:36 PM

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yanw

Quote from: 41juergen on February 26, 2017, 06:24:34 PM
So here are the -60 data. Interesting how far the Yam engineers retarded the timing...
Thank you for doing this :-). Looking at the graph it's almost as if someone was expecting emmisions testing between 6 & 8K......

zoomzoom

Quote from: ybk on March 05, 2017, 09:21:55 AM
Together

Wow that is interesting...

Out of all the cdi tested,  the -60 has almost the least advance curve ( average) but yet it yielded the most power of all...
Just to add..That was on both R and SPR motors
I know the low down advance helps for low down power before you come onto the pipes and then advance decreases as the revs go up, but in the end the gains are minimal, but there is a gain.

In fact Scott tried my -60 cdi at phakisa last year and he said to me he could feel quite a difference out of corners and at lower RPM range, but top end was about the same. he is running stock pipes and stock motor.

I did find with my motors, both R and SPR that with the 00, 40 and 9A CDI my lower RPM range pull was better, i had the same expansion pipes on with these tests..


It also depends on setup and a few factors hey..

Thanks Juergen and all involved

jools

Yes,
many thanks to Juergen for his time and effort collating this data. It gives a good window into the timeline of how the Yamaha engineers train of thought changed through model development with the introduction of outside interference's.
Plus ce la change, plus ce la memchose

41juergen

And thank's a lot to you guys! That was a serious international cooperation...  :))
At least I learned a lot for using the Sim tool and also that a programmable CDI might be better nowadays rather then using the too expensive SUGO parts..
cheers
Juergen

Paul

Such helpful data Juergen. And thanks for the hard work.
I hate to say but it is one step from being complete and that is an unleaded TZ 4TW
Earlier Warwick said he ran pump fuel on a 4dp leaded ignition (although not 100% sure of matched timing) and I personally know a chap who races a TZ 5ke on avgas.
I want to convert my TZ 4dp to pump and am having some heads machined as I type.
Had anyone got access to a 4TW cdi?
the twins:-
TZR250 3xv
TZ250 4DP2

SouthCoastRich

Quote from: 41juergen on February 26, 2017, 06:24:34 PM
So here are the -60 data. Interesting how far the Yam engineers retarded the timing...

*bump*

Really useful info for someone with a CDI in their bike, standard, SUGO or programmable (i.e. everyone).
RD 350 YPVS F2
TZR 250 3XV8 RS(P)

SouthCoastRich

#306
This is such a valuable resource.  (-P)  I've taken long while getting my head round the science of this and I've finally got there and am making practical use of this.

I've done a video of my thought process and implementation, in hope it'll be helpful to others thinking about a programmable CDI ;D

Thanks all to have contributed to this, here's the video https://youtu.be/xwNppbGfcHY

& Thanks to YBK for approval (-P)
RD 350 YPVS F2
TZR 250 3XV8 RS(P)

rz500guy

Well done. I thought of the same thing but did not want to take the time to make a script to work from.  For a  visual person like me this is perfect. I had no idea about getting the connectors added. I like the lighted switches you added for the mapping. I made several minor wiring mistakes but were easily fixed. Extension cable is nice.. Was that from Borut or your guy? A few things you discussed but did not show was the calibration of the TPS. Pretty straight forward but would help first timer. A few other things are the static angle and compensation you briefly touched on. These are set by Borut for the particular bike you order it for as far as I understand. They can be changed. M in SC found the last setting to be off on his bike. Looking forward to the dyno run. Was ashamed when I did mine that his computer was down. Thanks again and will really help those that are nervous about installing a Zeel.

SouthCoastRich

#308
Quote from: rz500guy on April 18, 2023, 03:41:53 PM
Well done. I thought of the same thing but did not want to take the time to make a script to work from.  For a  visual person like me this is perfect. I had no idea about getting the connectors added. I like the lighted switches you added for the mapping. I made several minor wiring mistakes but were easily fixed. Extension cable is nice.. Was that from Borut or your guy? A few things you discussed but did not show was the calibration of the TPS. Pretty straight forward but would help first timer. A few other things are the static angle and compensation you briefly touched on. These are set by Borut for the particular bike you order it for as far as I understand. They can be changed. M in SC found the last setting to be off on his bike. Looking forward to the dyno run. Was ashamed when I did mine that his computer was down. Thanks again and will really help those that are nervous about installing a Zeel.

Thanks! Yes a couple of bits I could have gone into in more detail. One was the TPS calibration and the other is the PV values, which I did mention but it's had to explain without showing it. Basically two cocktail sticks and a piece of card. Yeah maybe that one's more visual than words  ;D I got my Zeel from The Tuning Works and they did the connectors all potted in, so no dramas for me on the wiring, but I did forget to order the extension cable and only realised after fitting it all that it was a one shot wonder without it. I think both Sean at TTW and Borut at Zeel have these cables. Static angle, yes, that came set up with the 3XV config on the Zeel. From what I understand all 3XV's have the same - I could be wrong (and frequently am!)

The main setup is covered in Phil's thread here, so I didn't go into that much http://pure2strokespirit.net/forums/index.php?topic=5829.msg58208#msg58208, but I have linked this forum in the video so if people are after expert advice, they can some onboard!
RD 350 YPVS F2
TZR 250 3XV8 RS(P)

rz500guy

Thanks again and hope this lessens the anxiety of someone thinking about a new controller. In my opinion it is worth it just for the piece of mind that I do not have a 30+ year old electronic part in my bike. It could fail or give you tuning issues that is hard to diagnose. One less thing to worry about on a build.

m in sc

very good video indeed. makes me happy my 1kt is 'dumb' by comparison, man thats a LOT.  (-P)

jamietzr250r

'If you haven't fallen off yet you weren't going fast enough'
3XV1
RD80/125 YPVS HYBRID
RD125LC MK2 (For Sale in bits all there needs engine rebuild)
Jap Import TZR50R (for sale now project or parts)