Planet Minis

NCNSR

商品コード 08-0514 ハイパワーフルＫＩＴ(72ccボアアップタイプ) ¥62,160 　＜ＫＩＴ内容＞
　ハイパワープラグⅢ・ハイパワーシリンダーヘッド・ハイパワーボアアップＫＩＴ・フロントスプロケット・ ウッドラフキー

　ピストンリング装着済・説明書付 Autoboy 72cc Bore Up Kit Completely Ported,Head Cut,Plug and sprocket..............A total bolt on and go package.....

racerguy180

it sounds like it would be, autoboy makes some cool s**t, i am confused as to what this means? ウッドラフキー uddora***i????

NCNSR

There competition has some nice stuff also ........Racing Shop LippsGoogle Translate

Rosso_Corsa

How much do one of these kits go for?

NCNSR

The Autoboy kit pictured above is $670.00 USD........Retail in Japan

NCNSR

The little Timing Key i forgot what it is called The kit provides you with The fully worked 72cc Cylinder,Worked Cylinder Head,Stepped top piston,There high power plug setup,The little key to set the timing to there specs and a 16t sprocket..Like i said a complete "We thought of everything kit"

schofell84

has anyone ever considered building their own kit? stroker crank, custom piston and a bored cylinder ... port and nikasil it and smoke the competition.

its not open heart surgery, many companies can make an offset crank pin ... two stroke pistons arent terribly hard to get made either ... maybe someone in the us can jump on it and make it a kit?

Jeff Lebowski

Can you explain this?

NCNSR

Its called a woodruff key and is used to advance timing to there specs............Which removes a great deal of trial
and error and makes you the beneficiary of there NSR racing experience.........

NCNSR

The Kit also comes with an NGK ER8EH "R" Series plug....


Translated from there site:

Replacement plug only power anyone UP ♪
By replacing the plug HAIPAWAPURAGU from the normal increase in the cylinder compression ratio. By the volume of the combustion chamber to further reduce vehicle emissions of small, low cost and simple, we realize the simple step of the tuning process.
Hate the hill ... ... and the lack of acceleration, please try this one fitted with a plug means.
The process is simple BORUTOON Wear.

※ increased by compression, acceleration / torque that can experience.

◆ HAIPAWAPURAGU Ⅰ-SP is the image (shapes vary by vehicle, please refer to the product title)
※ with description


Next to the plug is the adapter that screws into the head that allows you to use the ER8EH Plug..........

Jeff Lebowski

I understand what a woodruff key is and why it's used. But I didn't see any mention in your post of a different crank or rotor being used. That said, do you have to modify the the keyway in the stock NSR crank to accept this special woodruff key?

NCNSR

I dont think so ,But as i said "I am no wrench" I am just stating what comes with the kit....I am not as certain of the details as to the installation of said parts..........

reefmuncher

Could just run an NSR80 engine and do the same!!

NCNSR

There are a few reasons not to run a 80cc engine in the USA,Parts availability being one of them,They are getting rare even in japan and everything is more expensive for them Bore Kits,Exhaust etc etc.Hell American Honda still has 1990 NS50F parts laying around, A lot of stuff for the ACO8E is as close as my local Honda dealer...........Plus the fact if need be i can get a brand spanking new ACO8E motor, You cant do that with the 80cc.............

reefmuncher

Yeah I guess you're in a different situation in terms of availability, still from the specs on the kits you've got there sounds pretty fast stuff!

I have to say I got lucky and picked up two never run 80cc motors recently for my projects from bikes which were stripped for parts.

nsr80 geek

Not run an NSR 80cc.
What are you saying?The base and head gaskets and honda over bore pistons can be bought from Risingsuncycles.
The piston is the same as a 1982 CR80 but the Cr has an intake skirt cut out Wisco 450 series.
The crank is the same stroke 41.4mm
The cluch has 4 frictions but you can put a CR80 cluch in it.
The only thing that you have to do is bore out your cases and get an NSR 80 cyelnder and head the bolt patern is the same.Use the base gasket to mark your cases and open up the transfer ports.
Yes this is a step by step on how to make it an 80cc nsr.
I can machine the cases if you send them stripped down bare(NYNSR you need to pimp the cc's)I remember a post that said that you are going the split the cases.Just for NCYSR I have an NSR 80 top end (piston pin score in the wall). that can be bored out for a 100cc big bore Get one of the piston and gasket set ups from a Japan site and really pimp it 2 times the cc's for the pimp factor we all know that you have the blig covered.

reefmuncher

Yup you're on the money!!

I've seen both NSR80 cylinders and CR80 cylinders being fitted to NSR50 cases. Does involve welding new material and machining but can be done for sure. The nice thing about the 80cc block is it has a bridged exhaust which is great for getting additional port area.

Also you can get nice aluminium nickasil cylinders with awesome porting to play with. The big bore setup has the nice grunt so you can really power up hills and stuff!!

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reefmuncher

A few pics of how some have done it!

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