50 psi is maybe what most trucks run but on a balls to the wall truck with no compromises, s400's commonly see 55-60 psi and double that almost in a twin setup, no?
In a twin application its being run less hard ( roughly 3:1 PR usually ) and ya I know some run higher than 50 psi but that's the area i was capable of testing to when i did it , I have a BATMO S472 on my truck now for a bit and have plenty of fuel on board now , just have to install DP gauge , i'll re post my findings at the higher boost , I dont have a dog in the fight really , i sell a lot more cast chargers than billet or BATMO , and have made some of my highest HP numbers and track times on cast turbo's , but still think there are advantages to them for certain applications / budgets . .
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