Turbo Pros - 1 header & 1 manifold on a single turbo V8?

[Guest Magnum Rockwilder]

I have a single turbo V8, and it has a "log style" turbo manifold from a Massey Furgeson tractor on the turbo side of the engine and a C3 Corvette "rams horn" manifold on the other side, with a shitty crimp bent 2.25" crossover pipe.

 

I'd like to free up some exhaust flow by replacing the manifold with a 1 5/8" shorty header and a 2.5" mandrel bent crossover pipe, and having the turbo manifold ported to free up some flow.

 

Will this be okay?

 

I'm thinking the turbo will provide the same amount of resistance for both sides of the engine.

[Scottie-GNZ]

I dont necessarily have a specific answer for you, but here is something to contemplate and maybe seek some further input from experts.

 

While there is a big difference in dispalcement between a 5.7L V-8 and a 3.8L V-6, there is no difference in the volume of air the engine will displace if the V-6 is pushing say 24# boost making 480hp and the V-8 is pushing 13# making the same. The primaries on the V-6 would appear to be extremely small but when aftermarket headers with larger primaries and x-over pipe are added, the performance suffers because of the velocity change. The V-6s making mega HP of course benefits. So, if you are looking to be in that HP range or a little higher, make sure you size the primaries right and get advice from a turbo expert not an N/A Chevy guy.

 

Remember, with a turbo car, it is not necessarily engine displacement that counts but how much air the engine is displacing. Another key factor when building a street turbo with good crisp reponse.