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O.S. MAX 91SX-H Ring C-Spec Viper
O.S. MAX 91SX-H Ring C-Spec Viper
Stock Code L-OS19070
£314.99
Overview
O.S. MAX 91SX-H Ring C-Spec Viper.Similar to the standard 91SX-H C-Spec but with the added advantage of the stunning new Viper head. Not only does this cylinder head improve power, it also improves cooling and throttle response as well. In some way, this can be attributed to the twin glowplug system.
This has the added benefit of giving a little warning of plug failure in flight as one will still keep the engine going, there will just be a little loss of performance to give you the chance to land safely.
A great engine for F3C competition.