MB Reed Block for Piston Port.

[lozmondo]

Im not sure, All work was dobe by Roger @Pro Design in Littelhampton

[bigmuff]

Im not sure, All work was dobe by Roger @Pro Design in Littelhampton

cheers, I will pick his brains, he's doing my chop frame at the moment.

[the-brickie]

Coaster, did you alter the angle of the transfer feeds or just raise them with a similar shape/slope/angle (if you follow)??

I'm carving up a cheapo ebay alloy 185 at the mintue, the ports were shocking, gonna use a RD350LC piston, plenty of over sizes as long as it runs ok! so wanna get it right, maybe on the conservative side. Your boost post looks a little small, how much of a power band did it have when it kicked off?

Great write up by Mark on his FB site re reed manifolds.

[coaster]

Coaster, did you alter the angle of the transfer feeds or just raise them with a similar shape/slope/angle (if you follow)??

I was aiming to just raise them to 125 degrees and make them both the same. I was using a cylindrical grinding wheel in my Dremel working from the top of the barrel and using the back of the stone. At the time I didb't realise the importance of the angle of entry or that most tuners don't touch them, prefering to use packers and topping the barrel to suit

However, maybe I was just lucky because it all work quite well, I have since widened the boost port to 23mm, I would have gone wider but there isn't much meat in the cylinder wall and I managed to breake through between the fins I didn't habe much time before leaving for the Euro so I glued a small piece of ally over the hole using JB Weld and it survived the 700 mile round trip to Kilarney, ovrt 600 2 up