as above, port timing...how high, low and wide you go affects timing, the bigger you go, the higher it will be making power.

On the issue of reliabilty, this is very much dependant on the tune of the ecu, unlike piston engines you do not go to knock then back off a couple of degrees, a piston engine will cope with a small amount of det before breaking, this is not true for a rotary, they cannot take any at all, the moment you get knock the 2mm metal seals that sit in the corners of the rotor break off and exit the engine.

So a 2mm bit of metal hold the explosion of a combustion chamber, its an awful lot to ask but thats what it was developed for and does very well.

Right so the engine was rebuilt with all new belts, bearings, seals all around the rotors and water seals all around the housings(kind of like a headgasket)

This came to a total of £3000, the reason for the large price is because I also had new housings put in, this was to make sure i had perfect compression to make the most power for the boost i was running, if not the bill would have been £700 less, £3000 i think is pretty good for an engine that can hold 700bhp, this includes a walk in/walk out service with a 12month warrantee.

Well thats the engine covered, now ill move onto all the bolt ons to make the power