im not sure, mostly because where i live in MA there arent many e85 stations closest one is 25 min from me. also im not gonna be running more than 500whp on the streets very often, the stock engine in the NSX isnt the strongest so ill only occasionally push more than that. and finally im waiting on a drop in intank fuel pump to come out that can make 600-650 on e85, its the new DW300 supposed to come out in january so im hoping to run that. drops in like a walbro but supports a lot more power. once the engines built with a bigger turbo i will be running e85 and 600+ everyday.