Vortech 3.125 to 2.87 Question
 

Hello Everyone,


I have a 2013 Scion FR-S with the V-2 Vortech supercharger, I recently upgraded from the 3.125 to the 2.87 pulley. Doing my tuning and looking at my boost gauge i have noticed that my 3.125 pulley was making 14PSI of boost. I have done some pulls and my 2.87 pulley is making the same PSI in 3rd gear. I live in south Carolina if that makes a difference. I will also note I don't see any belt dust and my tuner doesn't see any boost drop off in the logs This is on 93 by the way. I use to run E85 on my other tune.

As for my build I am also running the AEM meth kit to keep IAT's down while running this pulley.

I assumed to see a bump in PSI through each gear however it doesn't seem that way,

Any insight would be appeached.

Thank you.