Quote:
Originally Posted by mrloko
Thank you for your input mike, I've been stalking you secretly in many of the threads you open here and on reddit and I know you you know what you're talking about just because how long you've been doing it and how many people you've helped haha 
With these power goals no internals need to be changed? Just a very conservative and very dialed in tune? |
Correct. I run up to 10.5psi with my stock 2017, on E85, which is far, far more stress than just 7psi on 91.
To give you an idea of the stress differences... take a look at this graph.
Grey = stock 2017
Green = 91 octane, 7psi tapering to 5.5psi
Pink = E70, 7psi tapering to 5.5psi
Orange = E70 12psi tapering to 10.5psi
This is my car, which is tracked quite frequently, running a GReddy turbo kit with CSG thermal management, Delicious flex fuel kit, boost controller and tune, DW injectors and fuel pump.