Many fans of GM’s LS motors are well aware of the Magnuson name thanks to its industry-leading forced-induction solutions. Now, the purveyor of performance products is making them even better thanks to the new Heartbeat supercharger.
The Heartbeat continues to use the Eaton TVS rotor pack, since it’s the housing of the supercharger that Magnuson is remodeling. According to Magnuson’s Matt Hatley, that’s because the goal was to be able to fit the Heartbeat under the hood of a Corvette C6 hood, he told LSXTV. So then what’s the difference?
Instead of forcing the exhaust downward into the intake manifold as with the traditional top-mounted “Maggie” supercharger, the Heartbeat forces it forward. It also features split intercooler cores that are angled mid-way between the blower outlet and the cylinder heads.
This results in room for big rotors as well as more plenum volume, which means more efficient cooling for the powerful blowers. It also means 2.3L TVS rotors — the same as the ones used in GM’s late LS9 — will fit under the stock hood of a C6 Corvette. This, along with improved internal aerodynamics and a beefier intercooler, result in a 25 horsepower increase and 17 pound weight loss for the new Heartbeat supercharger when compared to Magnuson’s previous “modular” kit. On top of these improvements, the Heartbeat kit is also easier to install.
Well done, Magnuson, well done.