29-05-2012, 09:15 AM
Constructive arguments aren't clutter. It is all valuable opinions so feel free to post some more.
With regards to the pulse tuning; I have always understood that the tuned length of the runner was responsible for the frequency pulses and not the distance from the valves to the tb. The gti6 manifold has shorter runners so would give a higher rpm power band.
Think of jenvey throttle bodies as an example; the butterfly is very close to the cylinder head but by changing the length of the intake runners you can tune it for where you want the torque to fall.
With regards to the pulse tuning; I have always understood that the tuned length of the runner was responsible for the frequency pulses and not the distance from the valves to the tb. The gti6 manifold has shorter runners so would give a higher rpm power band.
Think of jenvey throttle bodies as an example; the butterfly is very close to the cylinder head but by changing the length of the intake runners you can tune it for where you want the torque to fall.