Scrap rotor housings/Porting tips

[Bob Monkhouse]

Would anyone out there know where I can get some old rotor housings from? The reason being I want to do some practice porting(bridge inlet, exhaust ports). Obviously its easier to **** something scrap up than my little lads motor!! As I\'ve said in other threads before, I do a fair amount of porting(most recent being a pair of 298 Mustang heads- 16 ports, your hands are ****ing fizzing when you\'ve done them I can tell you)! I would just like to see how they come out. Also I would like to know things like port width and height,port timings etc so I can understand the engines a little better. Any pointers to tuning books would also be greatly appreciated. They can\'t be that hard to do surely? After all, they are just a two stroke without transfer ports? F***ing famous last words eh!!!!!!

[John_Hudson]

does this help any bob?

clicky

[Bob Monkhouse]

Just had a quick look at the attachment you\'ve sent, its just what I wanted!! Many thanks, it will be pored over in detail when I have an odd couple of minutes(read weeks for minutes)! Thanks,Bob.

[Bob Monkhouse]

Ps. that should read 289 for the anoraks out there!!Bob.