Quote:
Originally Posted by SuperB70
Thats just awesom project.
We use to play more that ten years ago with diesel turbos on gasoline engine, found that they can't take the higher rpm and they usually start to leak oil pretty soon. If you chance the central bearing cartridge from gas turbo and compressor and maeby exhaust turbine from diesel turbo, balanced it and then it will hold up high rpms. But I'm afraid its just not that simple.
But thats how they make custom modified turbos.
Bearings and seals are usually different on diesel turbos than on gasoline turbos.
But they are great things to get more power.
Like Deuce 454 sayd that a microsquirt (its really a megasquirt  ) is really good way to go. It wount break your bank either. And getting better everyday.
Nowdays there are good quality cheap chinamade turbos sold on ebay. Many 4bangers here makes +400hp with those ones.
, Juhani |
Just to add to that, the real key is in proper sizing of the turbine and compressor parts to match the engine and intended horsepower goal. We were REALLY over-speeding that single turbo past about 5000rpm. Running 2 of them gets the shaft speed back down near the lower end of the map. I knew NOTHING about "pressure maps" and "islands" before starting this project, but it all makes perfect sense, and the dyno results back it up 100%...