gtrboyy
Well-Known Member
- Joined
- Jan 25, 2006
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- Members Ride
- vt ss & lc gtr
Banana manifold has been done to death you don't think dudes were silly enough before you to spend hundreds of hours on the damn things or crazier blokes who spent thousands wanting best results just to say they proved everyone else wrong...
Best reslts were extrude honed starr manifold or larger throttle body like come item or ls1 item with opening moved to the front & maybe little grind work to open the entry.
There are so many flaws with banana manifold if maximum performance is the goal...different story once add boost though.
(lost count of people who tried even greenfoam threads,starr performance,street com forum & probably peeps from this forum too)
Even comparing walky or group a manifolds versus single plane was done to death & yes single plane was broader torque spread by better straight shot to valves...which is basically what touring cars similar to group a manifolds without top on it.
Again got no idea what it is you're trying to achieve...dyno figure,track car,drag time or just street car.
ps opening up runners won't do jackshite when massive open space in middle of manifold with uneven airflow distribution...highest velocity blows straight past front 2 cylinders because they too close to opening & by time air does hit rear cylinders it has filled open cavity & slowed down or hot by heatsoaked manifold.
Best reslts were extrude honed starr manifold or larger throttle body like come item or ls1 item with opening moved to the front & maybe little grind work to open the entry.
There are so many flaws with banana manifold if maximum performance is the goal...different story once add boost though.
(lost count of people who tried even greenfoam threads,starr performance,street com forum & probably peeps from this forum too)
Even comparing walky or group a manifolds versus single plane was done to death & yes single plane was broader torque spread by better straight shot to valves...which is basically what touring cars similar to group a manifolds without top on it.
Again got no idea what it is you're trying to achieve...dyno figure,track car,drag time or just street car.
ps opening up runners won't do jackshite when massive open space in middle of manifold with uneven airflow distribution...highest velocity blows straight past front 2 cylinders because they too close to opening & by time air does hit rear cylinders it has filled open cavity & slowed down or hot by heatsoaked manifold.