Recent content by mike4517

Hi Has anyone in the yorkshire area got a cam grinder? I am trying to copy some cams from a vincent racer so i can make an adjustable cam Regards Mike

I use these for fuel taps a servo will operate them easy http://www.ebay.co.uk/itm/1-4-BSP-Female-x-Female-Mini-Ball-Valve-NEXT-DAY-DELIVERY-Available-/110856337444?pt=UK_Air_Tools_and_Compressors&hash=item19cf8d7824#ht_3328wt_699

Why not use a carburetor from model engine.

Can you let me know how much shipping to uk Mike

The engine is not governed its the turntable that is governed either by gear or friction plate (clutch) engaging or disengaging from the engine. Mike

Hi Vic Does this help http://www.zytrax.com/tech/mech/threads.htm Mike

Radfordc You are right. Some of the charge does go into the exhaust but if the tuned lenth of the pipe is right you will get a return wave that pushes it back in, this is at certain revs. I like to set my cams up equal overlap 5 deg before TDC.

Ryan You have a few things wrong in your last post. Should be TDC not BDC. And overlap is an advantage the exhaust system draws mixture through the open inlet valve.

You can see it here http://modelenginenews.org/gallery/images/pascoe_v3.jpg Valve driven by shaft at 1/4 crank speed. This means ports can be smaller and helps with sealing He has used chain drive as well.

Yes it will work. I have seen one working the rotary valve was run at 1/4 crank speed.

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http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=360331312159&category=9143#ht_2465wt_905

http://www.youtube.com/user/ger462da#p/u/5/5t5qb0GWnsg

How about making a fire piston and see who can make a fire in the shortest time. Look on youtube (home made fire piston) Mike

It will never fly Mike