On the Garret turbo you can adjust the wastegate rod length to change the boost pressure a bit.
See what boost it's making now. Just adding more air won't make it any faster unless you turn up the fuel too.
-J
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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket
Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.
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