NERTIA POWER BOOSTER SET YUMINASHI

Drivetrain upgrades, engine upgrades, or any other mods to gain speed or acceleration.

Moderator: Modsquad

User avatar
dem0nk1d
Regular User
Regular User
Posts: 294
Joined: Tue Feb 11, 2014 10:22 pm
Location: Escondido, CA 92026

NERTIA POWER BOOSTER SET YUMINASHI

Post by dem0nk1d »

Anyone care to break this down for me and what it actually does. I read it twice and don't understand what it's doing.


http://www.yuminashi.com/-pcx150-inertia-power-booster/
http://www.pcxracing.com/product.php?id_product=11
User avatar
Alibally
Official Moderator
Official Moderator
Posts: 1761
Joined: Thu Nov 03, 2011 5:47 pm
Year: 2019
Color: Black
Location: Edinburgh, Scotland

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by Alibally »

It basically just a flywheel. It keeps the engine momentum going as a single cylinder engine has only one power stroke per 4 revolutions.
Image
User avatar
dem0nk1d
Regular User
Regular User
Posts: 294
Joined: Tue Feb 11, 2014 10:22 pm
Location: Escondido, CA 92026

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by dem0nk1d »

if it's a flywheel, this is adding weight and also that the bike is a CVT type system when the bike drops in RPM the belt changes slowing the bike down. Also you have a flywheel already in the bike for the stator / generator system. The mag or some people call it a flywheel.

Image

Part #1 Flywheel
User avatar
Alibally
Official Moderator
Official Moderator
Posts: 1761
Joined: Thu Nov 03, 2011 5:47 pm
Year: 2019
Color: Black
Location: Edinburgh, Scotland

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by Alibally »

It's fitted on the other side of the crank at the cooling fan/radiator side. It works the same as a car flywheel dampening out vibration. The disadvantage of a heavy flywheel is that it revs up slower as the engine has to build up the momentum of the flywheel, but once the revs are up they don't slow down as quick. Race cars have lightened flywheels/ clutches for the opposite effect.
Image
User avatar
wingz
Regular User
Regular User
Posts: 218
Joined: Sat Nov 23, 2013 11:45 am
Year: 2013
Color: Dark Silver
Location: Gauteng, South Africa

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by wingz »

May be remotely helpful in gusty headwinds but I wouldn't bother with it.
Image
User avatar
dem0nk1d
Regular User
Regular User
Posts: 294
Joined: Tue Feb 11, 2014 10:22 pm
Location: Escondido, CA 92026

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by dem0nk1d »

to me i'd rather reduce weight getting the rpms to speed and being able to hold the throttle in position to keep me going. i understand the idea of making things heavier to keep the objects momentum going, but this just sounds crazy.
User avatar
you you
What's a wot?
What's a wot?
Posts: 10000
Joined: Sat Jun 30, 2012 5:37 pm
Location: Between Lulu and Chichi

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by you you »

Alibally wrote:It basically just a flywheel. It keeps the engine momentum going as a single cylinder engine has only one power stroke per 4 revolutions.
2 revolutions?
User avatar
Alibally
Official Moderator
Official Moderator
Posts: 1761
Joined: Thu Nov 03, 2011 5:47 pm
Year: 2019
Color: Black
Location: Edinburgh, Scotland

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by Alibally »

you you wrote:
Alibally wrote:It basically just a flywheel. It keeps the engine momentum going as a single cylinder engine has only one power stroke per 4 revolutions.
2 revolutions?
Yes you've passed.
Have a gold star
Attachments
ImageUploadedByTapatalkHD1393057089.223507.jpg
ImageUploadedByTapatalkHD1393057089.223507.jpg (35.56 KiB) Viewed 3076 times
Image
Mgalutia88
Frequent Poster
Frequent Poster
Posts: 783
Joined: Thu Jul 11, 2013 8:42 am
Year: 2013 PCX 150
Color: Red

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by Mgalutia88 »

2 revs = 2 stroke you you
User avatar
you you
What's a wot?
What's a wot?
Posts: 10000
Joined: Sat Jun 30, 2012 5:37 pm
Location: Between Lulu and Chichi

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by you you »

Mgalutia88 wrote:2 revs = 2 stroke you you

1 rev = 2 stroke
User avatar
you you
What's a wot?
What's a wot?
Posts: 10000
Joined: Sat Jun 30, 2012 5:37 pm
Location: Between Lulu and Chichi

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by you you »

Alibally wrote:
you you wrote:
Alibally wrote:It basically just a flywheel. It keeps the engine momentum going as a single cylinder engine has only one power stroke per 4 revolutions.
2 revolutions?
Yes you've passed.
Have a gold star

It was a test :D
Mgalutia88
Frequent Poster
Frequent Poster
Posts: 783
Joined: Thu Jul 11, 2013 8:42 am
Year: 2013 PCX 150
Color: Red

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by Mgalutia88 »

You're right you you. Thank you. I had to think about it lol.
stryder123
Forum Benefactor
Forum Benefactor
Posts: 106
Joined: Wed Aug 29, 2012 2:41 pm
Year: 2014 forza
Color: Red
Location: Indiana, usa

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by stryder123 »

On a 4 stroke engine, when the piston comes up top it is either an exhaust stoke or power stroke.
So power stroke every other time.
User avatar
you you
What's a wot?
What's a wot?
Posts: 10000
Joined: Sat Jun 30, 2012 5:37 pm
Location: Between Lulu and Chichi

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by you you »

Mgalutia88 wrote:You're right you you. Thank you. I had to think about it lol.

:) no probs,you made me think twice
User avatar
you you
What's a wot?
What's a wot?
Posts: 10000
Joined: Sat Jun 30, 2012 5:37 pm
Location: Between Lulu and Chichi

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by you you »

stryder123 wrote:On a 4 stroke engine, when the piston comes up top it is either an exhaust stoke or power stroke.
So power stroke every other time.
Two "strokes" to every revolution
Mgalutia88
Frequent Poster
Frequent Poster
Posts: 783
Joined: Thu Jul 11, 2013 8:42 am
Year: 2013 PCX 150
Color: Red

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by Mgalutia88 »

I know I know. Just hadn't thought about it in a while lol.
User avatar
mikelx5
Regular User
Regular User
Posts: 235
Joined: Tue Sep 03, 2013 2:36 am
Location: seattle,wa

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by mikelx5 »

so i have tested the inertia booster on my 150 with pipe and intake and yumi vario it will still make it to the 70mph and downhill i even got to 80 but takes longer to get there. that being said if you stay off the highway it gives u a lil more kick on the flats and you can carry your speed a lil longer on the hills. if i had more power i would leave it so im gonna hang onto it but for now my yumi with 11g rollers it has more on the top end. big bore with cam and manifold would prolly benefit i just dont have the power.
DISOBEDIENCE CREW
User avatar
you you
What's a wot?
What's a wot?
Posts: 10000
Joined: Sat Jun 30, 2012 5:37 pm
Location: Between Lulu and Chichi

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by you you »

mikelx5 wrote:so i have tested the inertia booster on my 150 with pipe and intake and yumi vario it will still make it to the 70mph and downhill i even got to 80 but takes longer to get there. that being said if you stay off the highway it gives u a lil more kick on the flats and you can carry your speed a lil longer on the hills. if i had more power i would leave it so im gonna hang onto it but for now my yumi with 11g rollers it has more on the top end. big bore with cam and manifold would prolly benefit i just dont have the power.


It's not a power booster its just a washer.
User avatar
mikelx5
Regular User
Regular User
Posts: 235
Joined: Tue Sep 03, 2013 2:36 am
Location: seattle,wa

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by mikelx5 »

not really its a wieght thats almost the size of the flywheel
DISOBEDIENCE CREW
User avatar
hatari
Regular User
Regular User
Posts: 169
Joined: Fri Oct 11, 2013 10:41 pm
Location: Hua Hin, Thailand

Re: NERTIA POWER BOOSTER SET YUMINASHI

Post by hatari »

listen to yer uncle Percy - "Leave well alone".................
Post Reply