Concrete should be troweled to a smooth even surface and be aged for at least 90 days. Expansion joints should be properly filled. Neutralize the surface of the concrete. Use either 1 part Muriatic Acid and 9 parts water or 1 part vinegar and 5 parts water to make a good neutralizing agent.
Cedar Pointâs Top Thrill Dragster relies on the power density of hydraulics. August 29, 2014 By Mary Gannon Leave a Comment. As it embarked on yet another one of its record-breaking, thrill-seeking rides, Cedar Point quickly turned to hydraulics, for the power density and precision control it offers.
1 One cam will not do everything well, you may have to make tradeoffs. 2  In other words, if you want to drag race with a cam that pulls at 6800 rpm, don't expect the engine to lug a trailer around at 2000 rpm or vice versa. 3  Cams have power bands, sweet spots or RPM ranges that they work best in. This power band or sweet spot does not mean that the cam will not work above or below this range. 2  If, for example, the sweet spot is rated at 2000-5700 RPM, the engine will still produce power above 5700 RPM (at least ours will), but above 5700 RPM, the next larger cam will produce more power.