He's getting DSMlink, probably 1000cc injectors and an SCM61 within the next month or so. He has 3inch o2 elim ( almost straight piped) exhaust. What would the best way to fab up a dump tube and go externally gated? The car already has a 2g manifold as well. I've seen externally gated cars setup a couple different ways. I'm not sure what the smartest / simplest ways are.
He want's to try and drive this car daily even with the SCM61. The idea is to daily drive @ about 20psi on pump gas. He wants to have another tune setup for track and race gas.
Next question is how do you pick the correct size for the turbo? I saw alex mentioned 38mm or 40mm. What exactly are the advantages / disadvantages to going say 40mm instead of 38mm?
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Originally Posted by ecoli
The lower the boost you want to run, the bigger the wastegate you need.
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Did you mean the higher boost, bigger the wastegate? I wouldn't understand why you would want a bigger wastegate for lower boost levels.