intake length tuning

i just was playing with a prb intake manifold and different length of intakes and how they affect
to the overall flow.
the bellmouth is essential to gain flow, without the belllmouth the flow decreases by 20-25CFM.
.

here are the results

just with the bellmouth next to the intake  321CFM

with a 66mm length pipe   313 CFM

with a 235mm pipe  304CFM

with 475mm length pipe 297CFM

the length f the pipes were exaggerated just to show how the length and affects airflow. larger cross sectional area to travel, more loses of flow.

cool engines from Bonneville speed week 2013

ford f1 updates

slowly but step by step we are closer to the end
car frame already primed and painted in black .
cleaned all the rust and repaired bad welds.

the art of hot rodding

1928 Ford model A with a BMW engine.

fastest 1/4 mile flathead

inspiring

more about t1 racing van

found the specs about this awesome van.
it runs a porsche powered bi turbo engine, 6 speed geabox, 800kg of total weight...
the pictures speaks by itself....

Vw t1 racing van

Amazing van !

finished K20Z

clean and polished head.
flat supertech valves, bronze  valve guides.  325 CFM @.4921 lift in intake and 293CFM @.49 lift in exhaust.

asking 1600€  or 1200€ trade in head.