InlineDave87
Famous Member
So with air brakes, depending on the size of the air line, if you use a 90 degree fitting it adds 6” for “timing”. 45 degrees adds 3”. Engine masters did a test on intake tubes before the throttle body and the performance was hindered by a 90 degree sharp bend in the piping and half as much if there was a 45 degree bend. I like how the cylinder head for the 250 shown earlier looked like it had 45 degree to the intake valve. This might be optimal as we cant put an intake runner, or exhaust, straight with the valve. I wonder how much better that head would have been if you would have mirrored the exhaust ports to the intake and then flipped them to the opposite side like a cross flowhead. I understand this would then ask the exhaust to make 315 degree turn to run it under a vehicle but with long mandrel bends it may not hurt so much especially with large enough ports and headers. Or we could just do a zoomie out the fender and it would only make an additional 45 bend to go out. So maybe split the difference and have it come out at 60 degrees? Going back to the intake side, you might be able to make it where the injectors are mounted to the head giving it a better shot to the valve. What do you guys think? 90 degree V shaped head for best air flow and more power? I would imagine this would improve both tq and hp.
Edit: maybe even more efficient and simplified if done with an over head cam?
Edit: maybe even more efficient and simplified if done with an over head cam?