Polcat - I can confirm that simply extending the Aux ducts out thru the spigot to the header interface does nothing.
The combination of better blowdown flow is offset by the increase in duct volume ( and the exit area ratio ) to the point that
no power is gained.
TM did this 10 years or more ago , and the concept failed miserably.
Its only when I introduced the 75% area reduction concept that the huge increase in power became a reality for the 3 port design.
Ive got a thing thats unique and new.To prove it I'll have the last laugh on you.Cause instead of one head I got two.And you know two heads are better than one.
Bookmarks