Maybe the technique is different with a blaster, but here's how I do it.
Watch the corner, brake (front and rear) very early, and BEFORE entering the corner put some gas so you'll get a little (or a lot) sideways, when you see you can smash the throttle, GO!
Of course, you have to lean a lot (as much as you can...watch the snowmobile riders to see how much you can).
Don't ge hurt...but be fast.

 

If u brake early then hit the throttle u will lose time. Hit the brake as soon as u come into the turn give to get the back in started, hit the gas then lean and push the quad with ur ***.