A proper squish clearance can give your motor 10% more power. Most aftermarket cylinder kits are not made to this close tolerance of 0.6-0.8mm proper piston clearance. We check the squish band clearance and usually have to close the gap from .18 -.13mm down to .8mm gap for proper squish band function to work properly.
EXPANSION CHAMBER VISUALLY EXPLAINED
(EXACT English TRANSLATIONS have been uploaded to Closed Captions for
VIEWERS interested in accurate translation in THEIR LANGUAGE -thanks). I am
continually trying to get the perfect version of how an expansion chamber
piper works. I may make a few of these little videos until I get the right
one. This one looks rough and I may not keep it up on the youtube. I hate
to practice or prepare for a video too much, because it ruins the
spontaineity. I need to find just the right words to explain this expansion
TWO-STROKE REED VALVE EXPLAINED
The reed valve is very important for a high perfomance DIO engine. It must
work correctly at idle and at 10,000 rpms. The valve material is of great
concern when building these engines.
DIO 54mm Piston Clearance TIPS
Small aluminum corners have been removed and piston has full un-opposed
travel throughout its 360 degree range. Cylinder deck height will me
measured and fitted next.
H D Cylinder Boring
Watch John Edwards @ Costa Mesa R&D Automotive Machine as he bores a
Harley-Davidson bylinder for larger pistons. (949) 631-6376 Don't forget to
'Clicl' and SUBSCRIBE.
ScooterNations - Fitting A 70cc Cylinder Kit/Big Bore Kit
scooternations.com is the fastest growing and the friendliest scooter forum
on the net, we welcome everyone.
Fitting A 70cc Cylinder Kit/Big Bore Kit
Also removing a 50cc kit, tips on the crank and torquing up also!
Easy to follow!
For more info!
Check out the forum!
2 stroke transfer ports information, along with porting and polishing tips
Information about the transfer ports on 2 stroke engines. An explanation of
the how the transfer ports on a 2 stroke cylinder work, along with tips for
porting 2 stroke transfer ports. 2 stroke transfer port timing and
trajectory are critical to power production results.
brought to you by CC Specialty Tools, world leader in porting and polishing
Pro Circuit Engine Porting
An inside look into the Head Modification service offered by Pro Circuit.
There is a fine line to building an engine. If limits are pushed too far
there are reliability issues. Pro Circuit's goal is to give you the very
best in high-performance service without any loss of reliability. Pro
Circuit engine modifications will give you increased from bottom to top.
For more info and pricing (in New Zealand) on 2 or 4 stroke engine work by
Pro Circuit please contact Crown Kiwi Enterprises Ltd. Ph: 06-751 4550
Pro Circuit products are proudly imported & distributed in New Zealand by
Crown Kiwi Enterprises Ltd.
Video courtesy of Pro Circuit Inc.
Video guida come modificare lo squish by assettocorseteam.it
Per dubbi o delucidazioni visita il nostro forum:
Per richiedere lavorazioni sul proprio motore:
Per richiedere il rasamento da sostituire alla ruota libera:
Seguici su facebook!
CR500-AF compression testing
Compression test on the big CR and a weather report. Groutaone official
race gear found here http://www.groutaone.com/
How to install pistonrings on a twostroke
Here I mount piston rings on a piston to a Speedfight 100cc and 50cc.
Surf to http://www.twostroke.se if you need new piston
Some hints, tricks and other things you should know at piston replacement:
Things to consider when installing an aftermarket Piston, is that you very
carefully to make sure it is identical with the piston as it is ordered in
the dimensions of the piston pin, both upwards and downwards, this so that
it can not turn the crank, push or hit the top when it rotates in the
Compare with your old piston before installation.
One must also carefully check every holes on the piston rings ports so that
they do not go over any channel in the cylinder, then the chances are that
the ruling in this case, sticking and breakage, leading to the cutting
cylinder. The arrow on the piston is at assembly towards the Exhaust port.
Choosing the piston:
B-piston recommend it for all used cylinders.
A piston for new cylinders or cylinders with new nicasil.
A B piston is slightly larger than an A piston in order to compensate for
wear. C piston is greater than B-piston etc..
Here you can see when I change the cylinder
2 stroke porting how to quickly put a textured finish on an intake.MOV
2 Stroke Porting How To. This is a quick way to put the textured finish
needed on the intake of a 2 stroke cylinder. Tools from CC Specialty
Tools, online at (ccspecialtytool.com). Intakes need a slight texture to
increase surface area and allow better evaporation and dissipation of fuel
droplets, along with other benefits, like the " Air Bondary layer" which
promotes a more laminar air flow over the surface of the intake.