The Honda PCX / Forza / ADV150 / SH Forums

I think I understand now. Very easy to get confused. One cannot consider the torque driver separately as it works together with the variator. The answer lies in the formula for centripetal force. F= mrw² (where m = mass, r = radius, w = angular velocity which is proportional to rpm). Centripetal for...

All torque comes from the front pulley though and the bigger the front and smaller he rear the higher your ratio. More engine power makes it easier to throw out the variator weights faster. You want the speed your weights are being thrown out to stay a constant for high speed ability. Think abou ce...

Wingz, you drop weight with an aftermarket exhaust to extend the gear ratio. The longer the variator takes to be thrown out the higher speed you reach when the variator gulley extends. More power with the same weight (torque) will extend the weights faster. You drop weight to counteract this effect...

I think it is more than 10% hence my interest in the Yuminashi gear set which gives 12.8% increase in gear ratio. IIRC the PCX150 could handle an even higher increase in gear ratio but that was going to be my starting point. Now I have decided to take a more frugal approach and measure exactly what ...

I see you were right in your previous post (dropping weight when changing back to stock exhaust). More power applies more torque to the rear pulley which lowers the gear ratio (allowing the engine to rev higher in that instance). Heavier weights would counteract this effect. IINM, AIUI your latest p...

haildamage wrote:the PCX alternator peak output is 318 watts.

How do you know this? And does it have overcurrent protection?
Is it the same for the 125 and the 150?

ok im confused y would you go lighter for top speed. Who said that? The NCY video was with 13g rollers. Changing exhaust does not change the rev limiter you are correct. It does however change the tune with the variator. It means I probably need lighter weights to correct my issue; pending top spee...

I can't get their website at all today.

tenpastnine wrote:New Beast

2012 PCX

Beautiful!
I nearly got a black one but was worried about how it would look in our dusty environment.

chucktuna wrote:

slogger wrote:Im keeping the sh 300, and looking for a second scooter.

Makes perfect sense to me!

That photo doesn't make any sense.... Where is the PCX?

Oops, I forgot to divide by 1000 on the kW axis. I started with Honda's quoted figures (10kW @ 8500rpm and 14Nm @ 5250 rpm). From there I analysed a power vs speed curve of a stock PCX150 from one of the aftermarket suppliers. Then coupled the above with knowledge of rpm at various speeds. I am qui...

Gn2, is that the best welcome you can come up with?

Disclaimer: I pulled this graph out of my imagination and do not guarantee its accuracy. It is however based on calculations and not guesswork so I don't think it is far from reality. est power curve.jpg Torque curve is irrelevant - I used it to verify the power curve. What is quite important is th...

I think it is a nice idea... If I ever get tired of the silver/grey.
How much did all the replacement panels cost?

11.5g Dr Pulley sliders from Ebay.
I just wish that they would arrive before Christmas. I'm going on a road trip on the 27th.

Sounds like 9500rpm limit.

Also, the engine in the Yumi video revs over 10000rpm.
I haven't checked how high mine revs.

spacer Let's think about this. I have heard of the spacer being used if belt chatter on take off develops after installing Dr.Pulley sliders in the stock variator. It is because the design of the sliders allows a lower gear range for quicker take off by allowing the inner pulley to slide inward far...

Can you please make a video showing the position of the belt when at top speed?
This will give us an idea of how much unused pulley is left to increase the gearing.

Changing exhaust shouldn't do anything to rev limited top speed.