I'm trying to help a fellow gearhead figure out and compile his new turbo setup so I had an opportunity to compare a Gentry water cooled turbo manifold to the size turbo that I've been running and he will be running.
He had the Gentry manifolds on hand already.
I was amazed at how small the exit hole is in the Gentry manifold.
http://www.***boat.com/image_center/...ryexhaust2.JPG
The manifold exit hole is not much larger than one exhaust port.
It's 3.35 sq. in. as compared to the Garrett turbine housing inlet that's 9.2 sq.in. not including the radius's / radii.
It appears these will only work with a small turbo so they are going to be real limited in more way's than one.
Is this as large as the exit hole gets in any brand of the aluminum water cooled turbo manifolds ?