Porting and Polishing tools, products, and how to, from CC Specialty Tools. CC Specialty Tools is a leader in professional grade 2 stroke and 4 stroke porting tools and supplies. CC Specialty Tool customers set World Records and win World Championships!
Hey man I enjoyed the video but I have a question, So I have a little Nic on the timing side of one of my ports but feels completely smooth when rubbing my finger over it. Will that have a major effect on how it runs? It's a cr85
Can something like a small flex hone , Brush Research BC9M32 FLEX-HONE®, 0.354" (9mm) Diameter, 320 Grit, Silicon Carbide Abrasive (Pack of 1) be handy for smoothing ports ? Cheers .
Yes sir increasing cross-sectional volume, after a certain point, would only come into play if you increase the displacement By Boring the cylinder or increasing the stroke.
the volume comes and goes. Sometimes you talk too fast and mumble your words. I am a bit hard of hearing, but there are plenty of videos on youtube that work for me.
Good question. First we would have to specify which kind of boost port we are dealing with. We can have accessory intake, exhaust, and transfer ports, all of which may be referred to as "boost ports". Boost ports can be added or filled in, depending on the performance characteristics you wish to achieve. Additional ports from the crankcase to the transfers can even be added for pressure bleed off at high rpm levels, and these too might be labeled boost ports. Unfortunately we were only able to cover the very basic ports that are applicable to all 2 strokes, intake, exhaust, and transfer ports. Thanks for watching.
Great video, thanks. Kind of late to the party here. I have been wondering about a golf ball finish for porting - watched a few videos about laminar flow etc. and thought the same principals may apply. Golf balls are dimpled to break surface tension and fly further (in case anyone thought I had gone mad).
It was not a vid on porting the port. He was explaining the port's function, and what changing the port time will do in effect. I look at "the pressure wave" he was talking about as a sonic/sound wave that comes back to the piston with a tuned pipe, (but pressure can help hold a fresh charge in the cylinder too), but bother than that, He said nothing that I saw as wrong. I have been porting small 2-stroke engines for a living since 2007, and these guys are world famous for their tools since way before I started racing MotoCross in the 80's, (when I started buying their tools.). Any moron can bash somebody,--and say nothing of "reason". That would be you son. Sorry. Sue your school. It's their fault.
Looks like a pre 88 KX500 jug, the later model comes factory with plenty of casting slag to clean up. Great motor, I have a 97, the KIPS work well if it clean.
I see some guys putting a 12 degree angle on the dome of piston I don't see a benefit to it they claim it helps flow and saying it opens the port earlier without porting the cyl what's your thoughts
Great question. For certain lowering a ramp like area on the Piston crown will definitely allow the expanding combustion gases to escape earlier in the rotation cycle. The other effects of this would be increased volume remaining in the combustion chamber at TDC, obviously decreased compression and delay in closing of the port on the upward stroke of the piston. The angle of the ramp, the width in relation to the port width, and depth across the cross axis of the Piston crown would all be things to consider as well. I will leave the question of how beneficial it is to be decided by the individual doing the work.
Great Info thanks , I want to have a go at porting our YZ144 Athena barrel for some more top end over rev , but have been hesitant for obvious reasons , haha
Awesome videos. The little tit on the cast iron twin 440/550 kawasaki cylinder is to retain the piston ring. Thats where the locating pin is on the piston is so the ring doesn't spin. It can NOT be removed or the cylinder is scrap metal
The 90 Degree 182 AMC and 1MC will both work with the flex shaft tools that have the key way tip. Follow this link to see what the shaft tip will need to look like www.ccspecialtytoolstore.com/product-p/93.htm
Amazing, Ironhorse told us on his channel that you are the best!!! Please stop over and see if you can help him out. He has a large following and will tell everyone about your products. Bless you for sharing your wisdom with us!!! Please stop over and see if you could help him - @
Amazing, Ironhorse told us on his channel that you are the best!!! Please stop over and see if you can help him out. He has a large following and will tell everyone about your products. Bless you for sharing your wisdom with us!!! Please stop over and see if you could help him - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-I-y3_jw9oUM.html&feature=em-uploademail
Beyond the shadow of a doubt these are used in all sorts of hardened metals. Flex shaft tools will have more torque and power than anything else you're trying to look at in the lower RPM Rangers
*Im actually buying a couple 2stroke motors at a discounted price arriving w/top end unassembled so Im wondering if I should do port work to it before putting together if its worth it or not????* Maybe just cleaning it up a polish without taking any real meat off.
There is absolutely a lot but can be done. Casting flaws , gasket mismatch, and improving the texture of the intake to better optimize flow, just to name a few
Lets say you had an atv engine and wanted to repurpose it for a street bike... what engine characteristics would you aim for and how would you alter the ports ?
Excellent question and that all depends on your starting point, in other words what kind of cylinder are we starting with , like a 250 banshee, or like a kx500 . Then you need to decide if you want high RPM horsepower or low end torque. Either way you port your cylinder differently. Please go to our website and look at my tips and techniques section. This will probably help a lot
@@Ccspecialtytool i will definitely read up on your site. I have a 1998 blaster 200 engine in very good condition. I was hoping to get a dt200/wr200 top end so i could get the power valves which i assume would help alot in repurposing the engine for street, but it seems theyre hard to come by and now it looks like ill just have to stick to standard blaster engine and maybe some porting in the right direction. Since the blaster already has good low end and power band is relatively flat and broad, im hoping that changing the gearing ratios should be enough ?
Isayisay you guys are trying to retire on the price of these tools WOW ILL KEEP MY OLD AVCO CHICAGO ELECTRIC FLEX SHAFT HOLLY SHIT HOW DOES THE COST OF THE ROTARY HEADS EXPLAIN ITSELF I WORK IN A MACHINE SHOP AS A CNC MACHINEST MAKING TOOLING BARRELS YOU NAME IT I CAN BUILD A ROTARY TOOL WITH THE BEST OF THE BEST BEARI GS SEALED ADJUSTABLE LOADING YOU NAME IT ..ILL PROVE IT GOING TO PROGRAM MY 3 AXIS AND MAKE SOME 3TO6MM ROTARY HANDLES I BET I CAN BUILD ATLEAST 30 FOR WHAT CNC SPECIALTY IS CHARGING FOR ONE WITH IF NOT BETTER THE SAME QUALITY ABSOLUTELY INSANE PRICING
Thanks for watching and yes there are always gains to be made. Another aspect of it it's not just horsepower increase but tuning the cylinder for your preferences. Some people want high RPM horsepower oh, some people want low end torque oh, some people just want to go faster. Doing the hard work of measuring and blueprinting a cylinder, crankcase, piston, and carburetor can always be used to improve the engine efficiency
I got a quick question I have multiple 47mm pistons they all have windows I’m looking for more power when I port my jug some of the pistons have small windows some big what do you think for more top end / higher rpm I hope that’s not too confusing ✌🏽
Thank you very much for your help in getting my porting skills up to speed. 2 stroke engines are the best. Light, simple and elegant design. The sheer fun and adventure of trying to get the most speed and torque out of a small displacement engine is awesome.
Very useful information! And I agree that the design of those heads are great. My '04 Jeep 4.0 has a similar style head, and this video is exactly what I was looking for. I want to do this at the same time I do the camshaft and valvetrain. Thanks!
High speed is ok as long as the burr is balanced, Most chatter and bounce is caused by hitting two surfaces at the same time ie the port wall and floor, WD40 works very well for lube, Heat is your biggest enemy, you want the cutter to do the work with minimal pressure applied in my experience
