I Talked with Welter on the duals for the turbo they say it's good for about 300 hp anything above need to add an boost controlled exhaust cut-out.I have the Hahn Turbo with side exit exhaust.
What i am looking to do is pipe the waste gate out of the side exit rear hole, then install a boost controlled cut-out run thru muffler and out the 1st side exit hole.
What i am trying to figure out what size to go with on the exhaust cut-out? The Welter is 2.5" and good for around 300.
The exhaust cut-out will be piped on the drop off of the turbo, thru a magnaflo race muffler and a side exit tip so total lenght it will be around 1-1/2 to 2ft long run trying to find out how small of the pipe can be. for 200hp to 300hp range. can i use 1-1/2 or 2" or 2-1/2
Thanks For any input or has anyone else started exhaust something like this
planning ahead for ddm built motor just trying to get exhast worked out before motor.