Vision 110 - up hill speed

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horobags
Posts: 1926
Joined: Sun Jan 30, 2011 10:48 pm
Rides:: sh 300
Location: scruffy old mancfester..

Re: Honda vision 110cc up hill speed

Post by horobags » Fri May 22, 2020 8:05 am

If the alt/f sorts the mixture out sounds like a good job done, the uphill increase sounds impressive for 108 CC.

Scootyman
Posts: 69
Joined: Fri Apr 13, 2018 11:34 am
Rides:: Honda Vision 110esp, Honda CBF1000
Location: Scotland

Re: Honda vision 110cc up hill speed

Post by Scootyman » Fri May 22, 2020 11:27 am

horobags wrote:
Fri May 22, 2020 8:05 am
If the alt/f sorts the mixture out sounds like a good job done, the uphill increase sounds impressive for 108 CC.
I think it is when you consider I weigh around 115kgs at present. I’m hoping the Altitude function will help. It probably didn’t help that I filled the tank up with Shell V power which I think is 99 RON as opposed to normal at 95 RON.

Does anyone know if that’s correct? Higher Octane fuel would make the engine run richer would it not?

Anyway, I shall give it a try today and report back for others. I’m not claiming that the Vision has turned into a Fireblade eating commuter scooter. Simply that it is most definitely more responsive and appears to have a little more in the midrange than it did before. I shall try and rig up my makeshift A/F ratio meter today and have a look at what’s going on when I’m playing with the Altitude setting.
Have a good day all and keep safe.

Scootyman
Posts: 69
Joined: Fri Apr 13, 2018 11:34 am
Rides:: Honda Vision 110esp, Honda CBF1000
Location: Scotland

Re: Honda vision 110cc up hill speed

Post by Scootyman » Sun May 24, 2020 11:38 am

Ok so after some testing, results are moving in the right direction.

I tried two further setups.

24mm throttle body, 120cc injector, air box restriction removed and altitude mode 3.

Original 22mm throttle body, 120cc injector (original injector has flow rate of 90cc), airbox restriction removed, altitude modes 1 & 3 (altitude mode 1 is standard mode as out of the factory/also known as ECM reset)

So the first run was with all the upgrades installed. It seemed that the scooter didn’t pull well with the smaller throttle body and airbox restriction so I went the other way and the results were quite good. In fact, that’s a lie, they were impressive.
It still isn’t quite right but it’s getting there. I went out late in the storm so endured a 50mph headwind and the Vision managed to pull me up my test hill at just about 50mph. To be fair it was a bit pointless that test because the wind was so strong but after the hill test I continued the ride home from Tesco and it does definitely pull better than before. Still a little buggy on acceleration or so I thought, and the top end in all the wind managed 65mph on a slight downhill incline. The difference was, with the slightly leaner mixture the bike wants to pull more.
That led to test two, the next day.
I put back on the original 22mm TB and left the tuning injector in. Reset ECM and TPS and away I went......it was rubbish! It turned out the doubt in my head about the test the night before was not as I thought. On the smaller TB the vision had less pull right through the rev range and clearly the slightly larger TB is definitely doing something right.
With the airflow now the same diameter as the new TB opening (24mm) I know there is no restriction in the airflow. I’m told remove the snorkel restrictor inside and you are good to go. The cylinder head input port reduces to 22mm so there is a restriction there, but performance has improved somewhat already.
I’m thinking the next move is to rig up my makeshift air / fuel meter and have a look at what’s happening. If it’s running rich then I’ll go down the route of a fuel controller and if it’s not then it might be that I need to work on the exhaust side (that’s my suspicion) to get more top end. To be honest though, it’s made the Vision a nicer scooter to ride. I’m a heavy fella and I’m riding around at between 50 & 60mph everywhere I am allowed now without the feeling of looking over my shoulder all of the time for traffic up my chuff.
Onward we go

Scootyman
Posts: 69
Joined: Fri Apr 13, 2018 11:34 am
Rides:: Honda Vision 110esp, Honda CBF1000
Location: Scotland

Re: Vision 110 - up hill speed

Post by Scootyman » Sun May 31, 2020 11:31 pm

Hello All,

Just a quick update on the testing I have been doing. I tried to increase the airflow on the air box by making an additional 25mm hole in the cover. It kind of worked I think but, it’s just so bloody noisy so I have replaced the airbox lid with a spare.
I haven’t really been out since to try anything else but I do have some goodies coming through the post (eventually). I have ordered a larger bore exhaust. What it will be like I’m not sure as it was quite cheap and on sale on Webike Japan website so when it arrives I’ll bolt it on.
I have also orderEd a 13 set of the new Mr Pulley (yep, the name has changed and no longer Dr Pulley) TechPulley sliders, to have a play with as the older ones worked quite well.
At the moment I am mega busy working on my garden. I’m digging drains and clearing land so I’m just too knackered to play with the scooter and besides my garage has resorted back to being in a bit of a mess with all the work going on. I’ve already shifted over 5 tons of gravel with at least another 6 tons to go. They don’t do hard landscaping in half measures here in Scotland and mine wasn’t done particularly well by the previous owners. At least my garage will no longer be a swimming pool and ready for winter so I can work in there come the cold weather.
Enjoy the sun and stay safe
Scoots

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