Quote Originally Posted by Hsing-ee View Post
Exactly. In the 80s I remember the legions of tuners boring the TPs out and sticking in massive springs and polishing the bejesus out of everything to little practical effect ... even Webley up-gunning the Hawk to give the Vulcan with a stronger spring, 'advanced' piston washer 'system' and bogger swept volume ... when all they needed to do was sleeve the TP down. The difference between you and them is you did your thinking with your brain, Mr Mick!
I think Webley may have cottoned on at that time Alistair.

The transfer port on the Hawk was 4mm diameter X 16mm long

The transfer port on the Vulcan was 2.5mm X 19mm long





Al the best Mick