500HP Turbo Civic cracks his Sleeves on the dyno Acceleration & Sound Crashes by turboandstance - May 21, 2017September 22, 2020 This guy named Clayton, his Civic EG was being tuned on the dyno by Brent at PFISpeed. During the dyno sessions and mapping they hit 531hp on 11lbs of boost. Till disaster striked! A Sleeve cracked and blew the whole engine up on the dyno. Is it me, or isn't there