imo it's simple to keep things real:xpensive wrote:Inline 4 cylindrers turbos at 1.5 liter would indeed have road relevance, interesting question would be how to prevent them from producing 1500 Hp?
Boost limit, rpm limit or fuel-flow control?
* Engine must last the entire race weekend - any change equals back of the grid
* Engine must be made of Aluminium (block, heads) and other materials found in normal road cars (no crazy alloys)
* Engine must have a mechanical cam phasing system (no pneumatics)
* Boost/engine map must be fully driver controllable and include a "push to pass" full power option.
* Car must have a maximum tank size
This in itself wont stop 1500bhp engines but it will stop them using too much HP for too long as the engine will be a 5min hand grenade like the old turbo Qually motors and of course with a small tank size they wont be able to use max power for the entire race.