Stu @ M Developments.

Secondly, as spool is much improved, your torque band should move left as the engines getting bigger, faster, thus giving you more useable torque area UNDER THE GRAPH. As an example, the T34.63 tends to make peak boost on the Dyno, when floored at 2000rpm, by around 4000rpm. An EFR will deliver the same amount of air by around 3500rpm. This is because the EFR turbo requires less energy to rotate it so it rotates up to the required speed faster. for any engine driven in this lower engine speed area, the car WILL be faster than a comparable T series equipped car driven at the same speed in the same gear. IE: 70mph roll on in 5th gear side by.