Definetly the most seperated timing for HP/rpm and being able to use the tightest pipe diameters(highest gas velocities)exhausted wrote: ↑Wed Jan 08, 2020 7:33 amHey, I thought you were just showing how to do the close timing as opposed to the most separated timing. I was not trying to say that is wrong. It gets different results and is not the most effective 421 layout for minimizing reversion and I would never build like that. IMOcjperformance wrote: ↑Tue Jan 07, 2020 7:33 pmYES Thankyou Calvin! 1&7 , 3&5
(NOT 1&3 , 5&7as i had stupidy said !!)
Then ,, 2&8 ,4&6 ,, as I had said and as you can see im not a flat planer!
(Not a flat earther either )
These's some interesting 4.2.1 pipe layouts in the motorcycle world, with different firing patterns and balance tubes between some pipes etc. I have "heard"(but dont know) among other theories that some of the pipe layouts are specifically to taylor the Tq curve to enhance ridability moreso than HP when talking high powered street bikes.