Vanquish
50 Achievements
15-20h
40 Yard Dash
Maintain a Boost dash to the limit of the ARS reactor without overheating.
19.3%
How to unlock the 40 Yard Dash achievement in Vanquish - Definitive Guide
This is quite an easy achievement. As soon as you gain control of Sam in Act 1-1 (Landing), you'll come into a long hallway. Hold to boost while you keep an eye on the ARS (Augmented Reaction Suite) temperature gauge on the bottom right of your screen. This temperature gauge will start to heat up while you're boosting. Once this gauge is almost completely red (leave a tiny bit of blue), let go the and the achievement should be yours. If you hold for too long, the AR Suit will get overheated and you will need a moment of cooldown before you can try again.
If you're still not sure how to get this, look at the video below. Look at the 00:58 mark, there will be a bit of blue left. That's where the author lets go of the unlocking the achievement.
https://www.youtube.com/watch?v=ThmQ04oEH2c