fuel system dimensions: I need a height measurement!

[jpnovak]

Some of you may know that I am assembling my own Individual Throttle Body setup for a future EFI conversion. My base plates are being cut tomorrow and I am ready to start cutting tubing, that will bridge the head and the throttle body and also create a stack.

As a starting point I plan to follow the stack height for MFI or a tall manifold carb setup. I have webers on both cars but don't have tall manifolds or MFI to measure from.

Will someone please measure the height of their induction system from the head to the trumpet inlet. Please use the center stack on either bank. These numbers do not need to be exact but should be fairly close.

I would like data from an MFI system, TWM style throttle bodies, Carbs with tall manifolds (PMO), and if possible an RSR high-butterfly system. Any internal diameters would be helpful too as I plan to model the intake volume and tune my runners.

Thanks!

[BoxsterGT]

Weber carb height is 125mm. Manifolds I have handy are 98mm.
MFI throttles (69 911E) are 60mm, the Mag stacks are 138mm to Air cleaner base.
Hope this helps.
BoxsterGT

[project935]

Not that I'm recommending them, but here's a pic of the MM carb manifolds. The tall manifolds appear to be ~15mm taller (the carb flange) than the OE height.



Subtle reminder ... How bout those qtr window tracings?