[Shark Tank]

Originally Posted by white rocket

Why is it not cool? I've seen plenty of boosted F20C/F22C motors that handle it quite well.

The S2000 motor is not really a good turbo candidate. It's already highly stressed, producing as much as 120 hp per liter. To get that power one of the things Honda did was to run high compression. Turbos also create high cylinder pressures so turbo engine builders usually run between 8:1 and 9:1 compression. The S comes from the factory with 11:1.

The only way to keep a boosted S alive on pump gas is to retard the timing to reduce cylinder pressures under boost. This takes special engine management. The extra air from the turbo needs more fuel to keep the air/fuel mix correct (CRITICAL in a boosted engine). This takes larger fuel injectors and, again, special engine management.

So for starters you have only begun down an expensive and time consuming road. Once you have purchased all of the parts they have to be installed and set up correctly. You won't be able to do it and I can guarantee that any shop you walk into won't approve of half of the parts you've bought. If it's a good shop they will insist on replacing half of the stuff you just picked up. If they're willing to just bolt a turbo swap meet to your engine they're just taking your money. It will never work properly.

The final straw is that there is always the chance that trying to get 200 hp/liter out of your motor will break something. If replacing the engine is going to be a problem for your budget you shouldn't even start this.