[sussurf]

My original idea was to delete the stock O2 sensor and run the bike open loop. I did this with my Sprint 1050 with great results.


So the LM-2 wide band sensor is 18mm and fits the stock bung in the Daytona header. All I had to do was to wire it all up and go ride it while logging all the data for tuning over time. That was until I read that DEcosse used this same bung location for dyno tuning and destroyed 2 wide band oxygen sensors.


Any idea on how to do this without welding another bung in the exhaust?

 

[DEcosse]

... That was until I read that DEcosse used this same bung location for dyno tuning and destroyed 2 wide band oxygen sensors ...

I wouldn't say 'destroyed' - but the reading definitely went out when they got super hot
My std is location is now plugged and my permanent wideband is in the mid-pipe.

 

[sussurf]

Why permanent? Didn't you tune & forget? I plan on tuning then removing the wide band, plugging the bung & check tuning periodically, yearly?
I'm interested to know your system & reasoning for tuning of your bike.

 

[sussurf]

Also, do you think the wide band in that stock location is still fraught whilst riding as compared to in the dyno booth?

 

[DEcosse]

I have a 'live' on-board system rather than a bench tool (which is really what the LM1/2 is)

Tuning is pretty much set now for quite some time, but it's good to see that validation with real-time display.
(It's the LX1 display on the left)

 

[DEcosse]

Also, do you think the wide band in that stock location is still fraught whilst riding as compared to in the dyno booth?

Can't really say since mine has been in the mid-pipe since then (actually had the bung welded in at shop next door to the dyno and re-ran from there)

I have since changed exhausts and had the new mid (which was custom fabricated anyway) include the bung also

(you can't really see it on the bike because it points inward)

 

[DEcosse]

I just wish Innovate made a more 'motorcycle-friendly' display gauge - they are more aimed at cars.

Zeitronix stuff looks interesting - decent pricing on it too. - http://www.zeitronix.com/order/order.htm

 

[sussurf]

Thanks for your input.
I'll think about where to go from here.

 

[sussurf]

I decided against using an Innovate LM-2 data logger and sniffer based on DEcosse's experience installing the wideband in the stock header location and having issues.
So given Tuneboy's Wayne MacDonald's extensive experience with the Triumphs, especially the triples, I decided to get him to tune it.
I dropped by there last night and he's mostly finished, just a bit of work to sort out the idling.
He said it was running a bit rough due to leanness down low & in mid-range and typically rich up top, as they all are ex factory.
He did say it was the strongest Daytona 955 he'd ever had on the dyno. First run apparently it made around 138 and after tuning is making 150.
Looking forward to riding it.
I'm planning on a shakedown at Eastern Creek raceway then another track day down at Phillip Island sometime before Christmas.

 

[PaulM]

He did say it was the strongest Daytona 955 he'd ever had on the dyno. First run apparently it made around 138 and after tuning is making 150.

It won't be long before someone comes along and says that's not possible. ( Not me well done and enjoy the ride}

 

[sussurf]

Doesn't bother me, the numbers aren't that reliable reliable anyway. This ain't my first dyno rodeo.



But here's a bit of coincidence for you.


My Sprint 1050 stock makes about 126 crank HP. With the mods I did, which are somewhat similar to the mods I did on the Daytona minus the camshaft re-timing, it makes about that in RWHP. So the improvement % is approximately the same percentage as the drivetrain losses.


The Daytona stock makes around 149 crank HP. With all the mods it makes about that in RWHP. The numbers aren't so unbelievable. But, FLAME AWAY!!! There'll be people on this board who will see for themselves soon and let them comment.....


And thanks Paul for your help and tunes. It's another lesson to me to take care with what tune you think you are putting on your bike. and that is in no way criticising your efforts on your tune Paul.

 

[mangosmoothie]

when you connected the LM2 to the daytona, did you connect it via OBD?

I was hoping to go this route on mine and use OBD to get engine speed and tps. I'd prefer not to splice into the tps wiring for throttle position and coil wiring for rpm. Since I have an old 955 with no O2 at all, I'll have a bung welded on the midpipe.

 

[sussurf]

when you connected the LM2 to the daytona, did you connect it via OBD?

I was hoping to go this route on mine and use OBD to get engine speed and tps. I'd prefer not to splice into the tps wiring for throttle position and coil wiring for rpm. Since I have an old 955 with no O2 at all, I'll have a bung welded on the midpipe.

I ended up not using the LM2.