howardsmed
Ragged trousered Philanthropist
This thread wont be of interest to many, but as I ( with my two other compatriots) have designed a set of valves for big racing engines, I thought I may as well tell everyone.
BIG engines, i.e. 840 and 880cc, start to run out of breath at high rpm even with the biggest easily obtainable valves out there. So I have designed a set of 45mm inlet valves ( +4mm oversize). They will be stainless steel, made by G&S as usual. will have 7mm stems which will require new collets and top collars. and new guides, however a well known USA bike manufacturer make parts i can use for very little £££ which is a massive bonus. We will also be using a Beehive valve spring set
will be ready for spring sometime
BIG engines, i.e. 840 and 880cc, start to run out of breath at high rpm even with the biggest easily obtainable valves out there. So I have designed a set of 45mm inlet valves ( +4mm oversize). They will be stainless steel, made by G&S as usual. will have 7mm stems which will require new collets and top collars. and new guides, however a well known USA bike manufacturer make parts i can use for very little £££ which is a massive bonus. We will also be using a Beehive valve spring set
will be ready for spring sometime