Quote:
Originally Posted by topher
All vtec-e's do this. It's not to help the swirl but, so the gas does not pool up on top of the vavle. ![thumbup](https://www.fuelly.com/forums/images/smilies/emthup.gif)
|
The 4th valve opens slightly so the fuel can "dribble in" and ignite right next to the plug. This helps quite a bit, since the lean air/fuel mixture does not ignite easily and has a tendency to ignite on a hot spot, such as the top of the piston or cylinder wall. By opening the valve slightly, the fuel spark will create a flash leading away from the top of the combustion chamber, just the way God intended. It reduces hot spots, too.
In a post above, the 92-95 CX motor is listed at 102 hp. It is actually 70 hp, I believe.
__________________