4drfocus
Rurouni
- Joined
- Jul 11, 2008
- Messages
- 593
- Reaction score
- 10
- Points
- 0
- Location
- Oz, or somtimes Japan
What I am thinking about is how to do a setup like I have on my Mustang, I have breathers that have hoses that run down into the rear of the header collectors and connect to one way check valves which connect to angled tubes welded to the collector. As the exhaust flows through it pulls the crankcase gasses into the exhaust stream and helps with ring seal. This has been confirmed that an air pump sucking the pressure from the engine does show a huge increase is power. The system I have gives you quite a bit less though.
Sounds like you have a pressure relief system for the bottom end(of the block),less pressure under the pistons makes for an easier downstroke in the cylinders which lets the engine rev faster,a ventilation hose on the valve cover does the same thing but for the upper end of the engine, it would do wonders for a high revving I-4 engine. I would love to install a setup like this on the FZ6 too.