Acceleration test

[WhiteNoise]

(Excuse me a moment folks for going off topic. Thanks

@ grndslm, pm sent to you.

[grndslm]

I tried using the app... Set it for 0 to 40 mph.. Hit start twice... Locked into GPS... Ready... GO!!

Then I get to 60 mph and nothing happens. No "races" stored in the history. Nada. What am I doing wrong?

Anybody?

[Rickjds]

Bone stock 2020 PCX150

[Conelite]

Bone stock 2020 PCX150

That is a VERY smooth acceleration curve. Its pretty cool to be able to compare acceleration curves. Thanks for sharing.

[Conelite]

I tried using the app... Set it for 0 to 40 mph.. Hit start twice... Locked into GPS... Ready... GO!!

Then I get to 60 mph and nothing happens. No "races" stored in the history. Nada. What am I doing wrong?

Anybody?

Uninstall and reinstall app?

[grndslm]

NCY drive face + variator + 13 gr rollers + aftermarket clutch bell...

It *feels* faster than this to me. Pretty sure it's GPS lab most of the time (this is my best time. I have gotten up to 6.9 second, with most being around 6.4... but then again, it also depends on the time. wonder if a different phone would help. hmm...)

[grndslm]

Here we go!!

Was trying to edit and add the image but had to resize on my phone..

[Conelite]

Morning Cool fresh air helped this morning. Best time to date. Wonder if my open CVT helps keep everything cool and happy

grndslm, What bell you running?

Screenshot_20201029-074501_TRC.jpg (114.9 KiB) Viewed 8431 times

[grndslm]

I've got 2 bikes. Original 2013 is still in the shop right now, not this newer 2015 has this bell --> https://theruckshop.com/product/perform ... -12-spoke/

I thought it had a checkered grip, but it's actually just grooves that loop the entire inside diameter. I guess it's better than stock, but I would much rather prefer a sandpaper or checkered texture. The OG 2013 PCX of mine has this one, which I was unable to find in stock (or even anything remotely similar for under $100!) --> https://www.ebay.com/itm/KAO-GY6-125-15 ... 3337103123

Seems to be the best texture, IMHO... yet now unobtainable. :-/

I think that ground slope and wind speed / direction probly account for almost as much variance as most of these aftermarket parts are creating. Should get my 2013 back within a week and will see if I'm able to detect any differences. If anything, I'd expect the 2013 to be a tad slower at accelerating, considering it's geared just a tad higher.

[Gil]

I have no idea. Maybe the app malfunctioned. Guess I'll have to go do it a few more times. I did it after about 5 minutes of riding so I know the belt wasn't very hot. Felt like the front wheel was going to come off the ground. Could be a fluke, or luck, or just perfect timing. Don't know for sure, but it felt really awesome.

When I had my stock clutch bell, I would slingshot out of every stoplight. The stock clutch pads are quite aggressive and will engage at a higher RPM, when they don't chatter that is. Now that I have changed the clutch bell to one with a textured surface, my scooter won't slingshot from a stop anymore. It's a more delayed smooth clutch engagement. Great for leisurely riding, not so much for "drag" racing. I might need a more aggressive clutch pads.

This is the clutch bell that I installed. https://japan.webike.net/products/24136 ... view-block

[Gil]

I couldn't remember the App that we were using on this thread, so I used a different one. It feels like the aluch performance has improved a bit. The best one was 5.7 s to 40mph, but it didn't save. I think I might be getting lausi GPS signal, that's the only thing that can explain the dips in the graph. I'll go out tomorrow and find a nice flat road to do some repeated runs with the original app.

[Gil]

I'm not too far from you guys. I'm gonna try stiffer clutch springs. At launch my scoots RPM drops considerably when the clutch engages. I think I could gain a second.

[Conelite]

I'm not too far from you guys. I'm gonna try stiffer clutch springs. At launch my scoots RPM drops considerably when the clutch engages. I think I could gain a second.

Let us know which springs you change over too. Curious how much it helps acceleration.

[grndslm]

I couldn't remember the App that we were using on this thread, so I used a different one. It feels like the aluch performance has improved a bit. The best one was 5.7 s to 40mph, but it didn't save. I think I might be getting lausi GPS signal, that's the only thing that can explain the dips in the graph. I'll go out tomorrow and find a nice flat road to do some repeated runs with the original app.

What app is that?

[Gil]

Drag Race is the one with the dark background. The app I couldn't remember the name off is TRC.

[Rickjds]

Bone stock other than a Malossi exhaust. Compare to previous times with stock exhaust. At least I can see an improvement.

[Mel46]

I am not even going to attempt this, but my 2013 with NCY variator, drive face, and weights gives me a max speed of 75 mph, though I have 13 gm weights which will not be the fastest takeoff weights. I think those would be 11 gm.
My objective was more top end, not how fast I could get there.

[Conelite]

My objective was more top end, not how fast I could get there.

If you tune the CVT correctly, you can obtain great acceleration, and retain top end speed.

The goal is to go as light as possible with the weights but heavy enough to get full Variator travel. Allowing the belt to fully travel, instead of it jumping all the way up on the variator and causing heavy wear on specific parts of the Variator and Driveface.

If you run too heavy of weights, its like jumping to Overdrive and keeping the RPMs too low to get into the powerband.

[vamootsman]

My objective was more top end, not how fast I could get there.

If you tune the CVT correctly, you can obtain great acceleration, and retain top end speed.

The goal is to go as light as possible with the weights but heavy enough to get full Variator travel. Allowing the belt to fully travel, instead of it jumping all the way up on the variator and causing heavy wear on specific parts of the Variator and Driveface.

If you run too heavy of weights, its like jumping to Overdrive and keeping the RPMs too low to get into the powerband.

OK OK enough is enough. No one on this forum has a PCX 150 that will consistently run 75mph without a displacement upgrade. Downhill doesn't count. Tailwind,,,great but doesn't count. Alice went down that rabbit hole and Physics filled it in and she's lost. Stop the madness!

[Conelite]

OK OK enough is enough. No one on this forum has a PCX 150 that will consistently run 75mph without a displacement upgrade. Downhill doesn't count. Tailwind,,,great but doesn't count. Alice went down that rabbit hole and Physics filled it in and she's lost. Stop the madness!

Consistent "cruising" at 75 no. But being able to hit 75 tucking (Stock windshield) is not that difficult. lol