Need help with CIS airbox measurement please

[Won]

If anyone has a CIS airbox sitting on their bench, could you please measure the diameter of the opening on the box under the throttle body, as well as the bolt spacing for the throttle body?

I need measurements A and B:



Thanks!

[boyt911sc]

Originally Posted by Won

If anyone has a CIS airbox sitting on their bench, could you please measure the diameter of the opening on the box under the throttle body, as well as the bolt spacing for the throttle body?

I need measurements A and B:



Thanks!

Won,

A = 70 mm
B = 65.5 mm

Measurements taken multiple times and these were my ave. readings. HTH.

Tony

[Won]

Thanks Tony! That's just want I wanted.

For future reference, those are the same dimensions as the 3.2L throttle body. If I went with 3.2L intake on my engine and megasquirt but kept stock ignition, I would have lost the vacuum advance which is . I wanted to know if I could use the SC throttle body with a vacuum port above the butterfly. According to Tony's measurements, SC throttle body will physically fit the 3.2 intake.

Then there is always the EDIS route..