Quote:
Originally Posted by TurboKraft
41mm exhaust port I.D. = 1.61" I.D.
Add tubing wall thickness, ex: 16ga to get O.D. = 2x 0.065" + 1.61" = 1.75" O.D.
So to port match to your heads and not add a flow restriction you would ideally use 1.75" primary headers.
Will 1-5/8" headers work? Yes...
|
Thanks, Chris!
The next question is, who makes/sells off the shelf
1 5/8" 930 headers with heat? I recall at one stage B&B use to sell them
So, if one were inclined to just use 1 1/2" 930 headers on a Carrera motor, what would be the issues there? Poor exhaust flow into the primaries? Exhaust leakage?
Wouldn't the slightly smaller primaries increase exhaust gas velocity and improve spool?
Keeping in mind, this setup is for a pure street car, not track car.