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Post by marrcel on Nov 4, 2018 22:38:12 GMT 1
I am reading in to this. Not made a choice yet between zeel and igni. Are there any standard or tuned presetting for a 31k with pipes peaking on 10krpm?
I did not find that in the zeel exe file. Did not found any sharing or discussion on settings. Is there any library with settings?Can anybody give me some guidance in this? Thx in advance
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Post by marsbar350 on Nov 4, 2018 22:49:23 GMT 1
most people who have these igintions use a dyno and they are reluctant to share info  but good luck with your search  |
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Post by tsa on Nov 5, 2018 0:50:16 GMT 1
This is what we used for the first YPVS we did on the dyno with my pipes on.
1000 18
1500 20
3000 24
4000 25
7000 25
8000 22
9000 17
10000 16
11000 15
PV
4300 0
8100 100
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Post by bare on Nov 5, 2018 1:41:45 GMT 1
Experiment? 2 strokes are directly opposite to 4 strokes in that they thrive on reducing advance with rpms
After 7 k or so best drop Advance quickly.. Unless you have lotsa spare Pistons :-)
PVs however can be opening at ~ 4000 and be full open by 7000.
Everyone seems overly conservative with the PVs in comparison to ignition advance... Dunno why TBH.
PV's really don't seal near well enough to be critical items... opening earlier is Gooder
Barring a Dino-Jet session ... the zeel controller gizmo taped to your tank allows for simple Butt dyno experimentation.
Not quite on the fly, while riding but easy enough.
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Post by midlifecrisisrd on Nov 5, 2018 9:29:00 GMT 1
Ignition curves are very individual to each engine
It will be unlikely for a tuner who has spent many hours on a dyno working out what works best to then hand it out for free to everyone
Also not good for their reputation if it goes pop due to detonation afterwards
Good on Kenny (tsa) firstly for sharing his settings (Think that was ianboom's bike) and secondly for giving tobyjugs a pipe design to get made. Top bloke
As said the ignition and pv settings can be very individual
Those given settings did not work well on my 385 ( probably to do with the longer stroke )
It ran fine but was a bit flat in the midrange then hit a wall at 9k
Had to ad more advance at midrange and top end along with keeping the pv's shut till 5k
Dyno is the only way to properly set up. Hence why Yam set it up very safe
Steve
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Post by Tobyjugs on Nov 5, 2018 11:33:25 GMT 1
Ignition curves are very individual to each engine It will be unlikely for a tuner who has spent many hours on a dyno working out what works best to then hand it out for free to everyone Also not good for their reputation if it goes pop due to detonation afterwards Good on Kenny (tsa) firstly for sharing his settings (Think that was ianboom's bike) and secondly for giving tobyjugs a pipe design to get made. Top bloke As said the ignition and pv settings can be very individual Those given settings did not work well on my 385 ( probably to do with the longer stroke ) It ran fine but was a bit flat in the midrange then hit a wall at 9k Had to ad more advance at midrange and top end along with keeping the pv's shut till 5k Dyno is the only way to properly set up. Hence why Yam set it up very safe Steve I think Kenny is a very helpful man indeed when it comes to helping us out with problems. If i can support him by buying his products i will. The pipes he make's for the 4LO are very good from a performance point of view. He would have been on the top of the list to make the pipes for my current project but this is not always possible due to circumstances. The pipe plan was a service he has provided at cost. This will not be given out as it is his work. I'm very happy he has trusted me enough for this plan. |
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Post by marrcel on Nov 5, 2018 17:22:39 GMT 1
This is what we used for the first YPVS we did on the dyno with my pipes on. 1000 18 1500 20 3000 24 4000 25 7000 25 8000 22 9000 17 10000 16 11000 15 PV 4300 0 8100 100 Thank you verry much sir👍 Good for a start i guess. Dyno check for power and air fuel ratio is also good advice🤗thx |
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Post by stusco on Nov 5, 2018 19:11:57 GMT 1
The zeel has various built in maps for your perusal
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Post by jon on Nov 5, 2018 19:39:01 GMT 1
This is what we used for the first YPVS we did on the dyno with my pipes on. 1000 18 1500 20 3000 24 4000 25 7000 25 8000 22 9000 17 10000 16 11000 15 PV 4300 0 8100 100 Hi Kenny, I’d like to ask for a bit of the science behind the numbers. I’ve never had a programmable ignition but would like to try one on my next build. Obviously the higher the number the more advanced the ignition is. I assume these numbers equate to degrees before top dead centre? As the RPM goes up obviously the timing needs advancing to compensate for the fixed burn time. I’ve heard the squish band is what causes the burn to be quicker at above 7KRPM so your figures back that up. Strange the standard setup starts to retard above 3.5KRPM then? Also could you retard the ignition drastically after say 9.5KRPM to act as a rev limiter to be kinder on the crank? Jon |
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Post by midlifecrisisrd on Nov 5, 2018 21:00:29 GMT 1
Hi Jon
The Zeel and ignitech units have a programmable rev limiter so no need to retard
Steve
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Post by tsa on Nov 5, 2018 21:01:48 GMT 1
The numbers are BTDC yes Jon. The reason for the retarded std ign it to stop it making the power and act as a type of rev limiter along with the std pipes and the fact the PV is never fully open. Remember they had to offer a warranty so this is why. One reason the lowend has high advance is for heat production as it produces no real power at all down there so it has to make its own heat.
The Zeel and the ignitec both come with programmable rev limiters in anyway.
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