Re: Cylinder Head; performance increase for FI too?
This is all from experience.
phil;205268 said:Shaun, did you read all this in books or you are stating actual facts from experience?
This is all from experience.
Yes those as well, but with reference to the term "surface grinding" I mentioned procedures carried out on block and heads. Terms used over here are surfacing, decking. Grinding usually implies a stone or abrasive of some sort, not carbides or cutters. Terms may differ between countries.Or replacing pistons with hi dome heads, or reducing head gasket thickness
With large amounts of welding like chamber fills, or deck buildup for aggressive angle mill, re-heat-treat is necessary. It is intensive as everything needs to come off the head for heat treat and then re-installed (guides, seats).I have never heard of a head being rehetaed to compensate annealing before, if it is welded, it will get surface ground, if the ports are welded, it will get ground for gasket surface and any other anomaly.
As in earlier para with terms.It is called surface grinding, not using a grinder, using a sufacing tool, most often a cutter.
No need for coarse talk. To answer, the same people who would prefer to replace valves, instead of say valves, pistons, rings, and everything it takes a long with it. Analogy is driveline. If you strengthen everything to take equal load before failure, and you have no weak link, and you go on to raise torque and grip, you will come to a point where you overcome the system all at once and break everything in the driveline. Fortunately this is hard to achieve and usually only one thing at a time breaks. If I had to pick a component that I wanted to let go instead of an expensive diff, I'd make sure it didn't exceed the capacity of the diff, so I would know the diff is protected.what a load if bullshit, hahahaha, a breaker, thats a good one. Who in their right mind would put or manufacture a part designed to break as an internal component?