Here’s your opportunity to upgrade your older Roe 2.4L Supercharger, intake manifold and VEC Engine Management System to a 2.8L or 3.2L Kenne Bell with the newer redesigned manifold and an SCT Tuner. The basic manifold upgrade kit will come with everything you need including step by step instructions to switch over your current intake and VEC system to the newer one and the plug and play SCT EMS. Compressor upgrade choices are available as well and horsepower gains will depend on the current mods you have on your vehicle. The older VEC’s can no longer be supported for maintenance but there appears to be a strong demand for good working ones on the used market for the customers who have the Roe S/C on their Gen 1 Vipers with the OBDI set-up.
The manifold was redesigned in 2016 to flow much more evenly to all cylinders now allowing global maximum fuel adds to Supercharger tunes versus individual injector setting with the VEC’s. The new manifolds are machined out a T-6061 Billeted Aluminum and anodized for appearance and protection. The basic kit will include the new manifold, top cover plate for remounting of the Supercharger, intake manifold gaskets, 2 Bar Map Sensor with pin-out kit, 69lb. High Impedance Injectors, RTV sealant and instructions. Options that may be included with the kit are a new compressor (2.8L or 3.2L Kenne Bell), newer air box required for the new compressors, 5.8″ under-drive pulley on lower boost levels, Water Meth Kit for boost levels 8psi+ and a SCT Tuner w/Forced Induction tune. The minimum boost of the newer 3.2L compressor due to pulley clearance from the hood is 8.4psi with the under-drive pulley. The 96′ to 99′ Vipers have forged internals but if you have a 2000+ Gen 2 Viper and would like to run boost levels above 8psi, Forged Rotating Packages along with Supercharger Grind cams are available on the store website. It is also highly recommended to run water methanol when running boost levels @ 8psi or above.