The different turbo design between the standard GT-R and SpecV could mean the two actually develop different power outputs
The turbo design in the SpecV shows a larger exhaust wheel with flatter blades than the standard GT-R
The finding gives hope to tuners, who are hoping it’s an indication that the turbochargers in the SpecV will be able to churn out more power before they reach their limit. More importantly, it could mean that the SpecV model actually produces more power than the claimed 485hp (362kW). It wouldn't be the first time that Nissan has underrated the output of its GT-R models as the practice was common for variants of the previous R34 model due to Japan’s voluntary power limit of 276hp (206kW).
Why Nissan failed to mention such a significant difference between the turbo units in the SpecV and the GT-R is anyone's guess, but it does go some way to explaining why individual component pricing for the SpecV shows the turbochargers listed as a separate part with a higher cost than the units on the regular GT-R.