Eastwood's DIY Polishing and Porting Cylinder Heads Kit

Learn how to Polish and Port your Engine Cylinder Heads and gain up to 10% more HP with Eastwood's Engine Porting Kit! Check it out here: http://www.eastwood.com/engine-porting-kit.html

Category:

Howto & Style

Tags:

• Engine
• p&p
• port
• polish
• polishing
• hp
• increase
• heads
• manifold
• cylinders
• porting
• performance
• horsepower
• horse
• power
• eastwood
• tool
• tools
• automotive
• auto

[5BobbyDavis]

Oh yea,Good job fellow.

[5BobbyDavis]

It's as simple as this,when you get boogers built up in your nose,pick it.See there now, how much easier it is to breathe.

[spazmoso]

ive heard not to touch the intake side because it helps the atomazation of fuel?and the head i have is aluminum,but rough casting is present

[piratebobstreasure]

@malecki1887 Fun debating with you. Bye!

[malecki1887]

@piratebobstreasure Thank you summarizing what i said...Im done with this convo...

[piratebobstreasure]

@malecki1887 Ok, now I think I see where you are missing the point. The syringe is 100% efficient all the time, as it is not drawing through a lot of impediments, the engine is not. Porting allows it to inhale easier, which increases its efficiency and the cylinder pressure increasing is a by product of this increased efficiency. Also, engines can exceed 100% efficiency at certain RPM ranges due to the combination of parts selected and the porting job done. The syringe can't.

[malecki1887]

@piratebobstreasure Sweet you figure someone whose a mechanical engineer could read...As i never said this didn't affect dynamic compression, my whole statement was it does not affect static compression, and just because you throw a set of ported heads on your not going to start blowing head gaskets all the time if the work was done right. Oh by the way im also a Mechanical Engineer and i overhaul design and work on Gas and Steam turbines. You know, the ones coupled to 750MW generators?

[piratebobstreasure]

@malecki1887 BTW, I AM an ENGINE builder, and a mechanical ENGINEER! The whole point of porting is to cram as much mix into the cylinder as possible in the time allotted, (i.e. intake valve open). What do you think happens to cylinder pressure when the mix ignites? It creates hundreds of lbs of force that push on the piston, etc. That too is a dynamic event, and the force exerted is dependent upon how much was crammed in there before it ignited.

[piratebobstreasure]

@malecki1887 Try this simple experiment: Using a screw in type compression gauge, take a reading on any cylinder by just cranking the engine over without allowing it to actually start. Record the reading. Next, start the engine and repeat. Compare readings. The engine running (dynamic) will usually be higher then then with the engine off (static). A change caused by dynamic forces only. Static is only figured mathematically and is not the real force seen by the running engine.

[piratebobstreasure]

@malecki1887 If you leave the valve open too long, it lets some of the pressure escape during the compression stroke, viola, a dynamic change in compression ratio. Leaving the valve open just the correct amount of time will let all the pressure possible into the cylinder before any meaningful compression takes place, which increases cylinder pressure and is a dynamic compression change, can be made higher by porting, which increases the size of the tube flowing mix into the cylinder