ChampCar Tech Desk

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The ChampCar Endurance Series Tech Team

2022-01-22 - Exhaust Manifold Flange

Q:
Am I allowed to replace the flange on an exhaust manifold?
The stock flange design makes removal of the downpipe a bit challenging. I'd like to cut the flange off the manifold and replace it with a welded V-band flange.
This is "modifying the manifold" so I'm not sure this is allowed, but it is downstream of the merge

A:
You can change and use the clamping device of your choice on the end of the exhaust manifold..

Ray Franck
ChampCar Tech Inspector

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