Ford Fission Posted May 20, 2012 Share Posted May 20, 2012 Hello, Whenever I'm browsing the Steeda site I always stumble across the engine mounts for the Sport and confusion sets in. I don't really know anything about what an engine mount does apart from keeping it under the hood. So if someone has some info or a link about how engine mounts play into performance that would be helpful. Also if anyone has any experience with the Steeda product I would be interested in hearing about results and installation. Thanks for your time. 0 Quote Link to comment Share on other sites More sharing options...
FusionDiffusion Posted May 20, 2012 Share Posted May 20, 2012 (edited) The engine mounts, as their name implies, mount the engine to the frame. To minimize the amount of noise, vibration, and harshness (NVH) that is transmitted through the rest of the car via the frame, the mounts are made with rubber inserts that absorb some of the vibrations, which also allows the engine to move around slightly in the engine mounts (helps to minimize stresses). If you have the hood open and watch the engine while someone puts it in gear, you will see the engine move because the mounts are flexing. Steeda only sells one mount for the Sport. It's the roll restrictor mount that goes underneath and attaches the bottom rear of the engine to the subframe. It's called a roll restrictor because that's what it does. Just like a helicopter needs a tail rotor to counteract the torque of the main rotor so it doesn't spin, the roll restrictor counteracts the torque of the engine so the torque goes to the wheels and not into turning the engine in it's mounts. If you think about it, that mount is holding back 249 lb·ft of torque so the engine doesn't go anywhere. The Steeda mount uses polyurethane bushings instead of rubber. Polyurethane is a harder material than rubber, so the mount will not flex as much as the stock one. Because the mount is stiffer, the engine will move less and the torque output to the wheels will feel more direct and immediate (so the shifts will feeler firmer). The main indication for this mount is to combat wheel hop when you floor it from a dead stop and the wheels start to loose grip. Since wheel hop is basically a feedback loop of torque through the drivetrain, using a stiffer mount will change the frequency characteristics of the drivetrain and should minimize or eliminate the amount of wheel hop (in theory). I haven't used the product, but it seems like it would really help with the wheel hop. Since I've only experienced wheel hop once or twice, I don't think I need it. If you drag race your car, then you would definitely want one. It's not going to give you any additional power, but it will change how the power is applied. Maybe someone that's used one will chime in. Clever username BTW. Edited May 20, 2012 by FusionDiffusion 0 Quote Link to comment Share on other sites More sharing options...
fusion0389 Posted May 23, 2012 Share Posted May 23, 2012 Thats pretty cool! Good info 0 Quote Link to comment Share on other sites More sharing options...
Ford Fission Posted May 25, 2012 Author Share Posted May 25, 2012 Thanks for the info, very helpful. I'd be interested in hearing the difficulties of installation. 0 Quote Link to comment Share on other sites More sharing options...
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