I'm still quite a ways out from even purchasing a turbo, which will likely be a factor in answering this question, but figured I'd ask anyways.
What diameter would be recommended from the exhaust manifold or header flange to the turbo? Either single pipe or twin scroll (I think that is the word for it..)?
Currently I have entirely too large of a collector and exhaust pipe on the engine at 2.5", so I know I'll have to go smaller. I see on V8's it seems to be recommended around 2.25" pipe.
The current exhaust manifold has two 1-7/8" outlets, and I am likely to get an equal length header that could be made to have a collector that keeps the front three and rear three cylinder exhaust separated as well, so that can be a customized diameter as well.
An example of the header I'm talking about, though this example has slightly longer primary tubes coming off the to clear a triple webber intake than I would get. Its already made, the guy is just waiting for me to cave and purchase =P
Thoughts and experiences? An optimistic eventual goal would be 600HP at what ever boost amount the engine will hold, so if you have thoughts on an associated turbo too, through it out there
With that on an Air to Air intercooler, would 2.5" inlet/outlet diameters be sufficient or should I proceed directly to 3"? My gut says bigger is better and go with 3". I currently intend to use an aftermarket Ford 5.0L single blade throttle body, but I cannot recall at the moment the mm diameter it is. Guessing between 65mm and 75mm, which is ~2.5"- ~2.95" diameter. The throttle body could be upgraded in size in the future.
What diameter would be recommended from the exhaust manifold or header flange to the turbo? Either single pipe or twin scroll (I think that is the word for it..)?
Currently I have entirely too large of a collector and exhaust pipe on the engine at 2.5", so I know I'll have to go smaller. I see on V8's it seems to be recommended around 2.25" pipe.
The current exhaust manifold has two 1-7/8" outlets, and I am likely to get an equal length header that could be made to have a collector that keeps the front three and rear three cylinder exhaust separated as well, so that can be a customized diameter as well.
An example of the header I'm talking about, though this example has slightly longer primary tubes coming off the to clear a triple webber intake than I would get. Its already made, the guy is just waiting for me to cave and purchase =P
Thoughts and experiences? An optimistic eventual goal would be 600HP at what ever boost amount the engine will hold, so if you have thoughts on an associated turbo too, through it out there
With that on an Air to Air intercooler, would 2.5" inlet/outlet diameters be sufficient or should I proceed directly to 3"? My gut says bigger is better and go with 3". I currently intend to use an aftermarket Ford 5.0L single blade throttle body, but I cannot recall at the moment the mm diameter it is. Guessing between 65mm and 75mm, which is ~2.5"- ~2.95" diameter. The throttle body could be upgraded in size in the future.
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