1971 Olds S71 Turbo Manifold Mock Up V8TV

http://www.v8tvshow.com - Sometimes the simple solution eludes you. In this case, we've been gearing up for the turbocharger install on the S71 Olds project. We've got our diesel block and new parts set aside, and we're using the original 350 engine to mock up how we want the turbo to fit in the car. We were expecting a ton of fambrication, as turbo manifolds or headers are not readily available for 1971 Olds 350 engines, and we were expecting to have to make our own. However, after studying the stock manifolds, a potential solution became apparant. From a performance standpoint, turbo cars don't seem to care if you're running headers or manifolds, the power levels are similar. And cast iron is as strong as anything when it comes to exhaust parts. We notices that the Olds manifolds had a provision for the single exhaust version cars that merges the left and right exhaust pipes together... can we use this factory style setup to build our turbo exhaust? Let's find out!

Category:

Autos & Vehicles

Tags:

• turbo
• manifold
• header
• fabrication
• install
• S71
• Olds
• v8tv
• 442

[michiganminis]

Why would you not just make a header set up that faces forward? It would eliminate the bends that prevent exhaust flow which will only hurt spool?

[V8TV]

@michiganminis You can, but the idea was to not have to make headers...

[S13lver]

WAIT if im getting this right ?an Oldsmobile is a just diesel ??? and excuse my ignorance im not American.

[TheAristotleQ]

Those manifolds look very restrictive for that giant turbo. Not only that, you have a divided T6 inlet on the hot side. What's the point of that if you're running a single pipe to the turbocharger. Once you start spooling up, I would think EGTs would be through the roof on that set up.

[onlyjaime]

You would have to now add extra flanges and material to build that up pipe? Plus you lose more space for the downpipe?

[onlyjaime]

You would have to now add extra flanges and material to build that up pipe? Plus you lose more space for the downpipe?

[bigjp455]

@V8TV

Plus cost saving and longevity.....

[mixtremesvig]

thats what a fabricator is for, make your own turbo headers.

[ChevorletC10]

@gnikishin well....sorta'. it doesnt start out with cool air, it has to go through a intercooler, which makes it cold and then forced into the carb...ect. hope this helped, unless you already found info.

[gnikishin]

is the cool air from the trubo going strait into the carb??