?

Maybe a windmill with a really low gear ratio?

I think it means material is removed from the mating surface of the head to make the cylinders smaller, which would mean the engine would cram the same amount of air and fuel into a smaller area, making a higher overall compression.

Am I right?

Close. Milling the head dosent make the cylenders smaller but rather the compression chamber on the head. Milling takes material off of the bottom of the head causing the head chamber to be closer to the piston therefore making less room for compresion, thus raising the compression ratio.

best time so far 14.3 @ 101.1mph

is it safe, and worth while to do? whats better high comp mill, or high comp pistons?

pistons is the right way to do it the cheap way is milling.

remember when you mill your also retarding timing because it creates slack in the timing belt.

and also have more of a chance to hit your valves and pistons..

not to mention that if you ever need to do clean the head up later (rebuild etc) you will have a lot less to work with and might even need a new head. Think of it like turning rotors. There's only so much you can take off.
______________
Chris
96 ESI 5 spd
Milwaukee, WI

Originally posted by Z87RSMan
the Mustang is an American icon...I have one because it sounds great

Originally posted by MotoFool
pistons is the right way to do it the cheap way is milling. remember when you mill your also retarding timing because it creates slack in the timing belt. and also have more of a chance to hit your valves and pistons..

Well yes you do change the timing slightly, because of timing belt geometry, not tension. Tension is controlled by the tensioner. Moving the cam sprockets location changes the geometry of the path of the timing belt. Whether you are closer to advancing or retarding your cam timing depends on how much you mill and what is the closest tooth on the gears to use.



Exile Racing Technologies: http://www.exileracing.com
una salus victus
Mods List: http://highlander.dsmpower.com/sig.htm

Originally posted by ajna_star
?

A "Mill" is a slang term for an Engine. If some one ask you what Mill you had in your car, you would respond a 420A. It has nothing to do with milling the head or block.

A high compression mill. Would be a high compression (above stock) engine.

A turbo engine would be a low compression mill. And their is no way to mill a head or block to reduce compression.

Mills, Windmill, Watermills are power plants. Your engine is a powerplant, so for slang engine = mill.

Originally posted by MotoFoolpistons is the right way to do it the cheap way is milling.

I take it you mill heads often, then? Always one to do it the cheap way MotoFool! Saving money, that's you! :thumbsup

Oh yeah, it's a challenge milling a head with a flat file, isn't it MotoFool? Or do you use a Dremel? It's tough to see the mirror shine you put on the bottom of the head with the dim lights in your parent's basement.

Originally posted by MotoFoolremember when you mill your also retarding timing because it creates slack in the timing belt.

Hahaha .... haha ... Slack in your mom is more like it. That Biotch so loose, I yawn from sheer boredom when I'm hitting it. Mods, I need a clue-by-four emoticon. Please, give me one.

Originally posted by MotoFool
and also have more of a chance to hit your valves and pistons..

*sigh* yeah, you're right. Anyone who'd just mill their shit and throw it back together without DEGREEING their cams deserves to have this happen to them.

Originally posted by AFX_ManufacturingA "Mill" is a slang term for an Engine.

That's true, but I think DR166565545 is right in this case. I think this guy is talking about milling the head for higher compression.

Originally posted by AFX_ManufacturingAnd their is no way to mill a head or block to reduce compression.

All the haters: here's your chance to jump on me for "slamming" Howell Automotive. Howell, poor form my 420a companion. Combustion chamber work can lower compression, I'm sure you know that. You can perform combustion chamber work with a mill, if you have a nice mill.

he's back folks!

Originally posted by Uberingram
he's back folks!

I never left. :thumbsup

Originally posted by mototool

Originally posted by Uberingram he's back folks!

I never left. :thumbsup

thank god

Originally posted by mototool

Originally posted by MotoFoolpistons is the right way to do it the cheap way is milling.

I take it you mill heads often, then? Always one to do it the cheap way MotoFool! Saving money, that's you! :thumbsup Oh yeah, it's a challenge milling a head with a flat file, isn't it MotoFool? Or do you use a Dremel? It's tough to see the mirror shine you put on the bottom of the head with the dim lights in your parent's basement.

Originally posted by MotoFoolremember when you mill your also retarding timing because it creates slack in the timing belt.

Hahaha .... haha ... Slack in your mom is more like it. That Biotch so loose, I yawn from sheer boredom when I'm hitting it. Mods, I need a clue-by-four emoticon. Please, give me one.

Originally posted by MotoFool and also have more of a chance to hit your valves and pistons..

*sigh* yeah, you're right. Anyone who'd just mill their shit and throw it back together without DEGREEING their cams deserves to have this happen to them.

Originally posted by AFX_ManufacturingA "Mill" is a slang term for an Engine.

That's true, but I think DR166565545 is right in this case. I think this guy is talking about milling the head for higher compression.

Originally posted by AFX_ManufacturingAnd their is no way to mill a head or block to reduce compression.

All the haters: here's your chance to jump on me for "slamming" Howell Automotive. Howell, poor form my 420a companion. Combustion chamber work can lower compression, I'm sure you know that. You can perform combustion chamber work with a mill, if you have a nice mill.

geta life you aren't here to help people i have never milled a head witha flat file your thinking of yourself.

Originally posted by MotoFool
geta life you aren't here to help people i have never milled a head witha flat file your thinking of yourself.

Oh man, that's a good comeback. Shit, I better go back the to barn I call a shop with my tail tucked between my legs. Man, I'm going to be hurting for weeks from that one.

From laughter. :thumbsup

I've got to go back to milling my head with some 40 grit.

I'm not here to help people, and you are? :wary "I give u speaciel deal. Give me call I am good! chaeper then aneywon else sucky suck five dollar"

Originally posted by mototool

Originally posted by MotoFoolpistons is the right way to do it the cheap way is milling.

I take it you mill heads often, then? Always one to do it the cheap way MotoFool! Saving money, that's you! :thumbsup Oh yeah, it's a challenge milling a head with a flat file, isn't it MotoFool? Or do you use a Dremel? It's tough to see the mirror shine you put on the bottom of the head with the dim lights in your parent's basement.

Originally posted by MotoFoolremember when you mill your also retarding timing because it creates slack in the timing belt.

Hahaha .... haha ... Slack in your mom is more like it. That Biotch so loose, I yawn from sheer boredom when I'm hitting it. Mods, I need a clue-by-four emoticon. Please, give me one.

Originally posted by MotoFool and also have more of a chance to hit your valves and pistons..

*sigh* yeah, you're right. Anyone who'd just mill their shit and throw it back together without DEGREEING their cams deserves to have this happen to them.

Originally posted by AFX_ManufacturingA "Mill" is a slang term for an Engine.

That's true, but I think DR166565545 is right in this case. I think this guy is talking about milling the head for higher compression.

Originally posted by AFX_ManufacturingAnd their is no way to mill a head or block to reduce compression.

All the haters: here's your chance to jump on me for "slamming" Howell Automotive. Howell, poor form my 420a companion. Combustion chamber work can lower compression, I'm sure you know that. You can perform combustion chamber work with a mill, if you have a nice mill.

This is really funny, but inappropriate. Let's keep the name calling and yo mama jokes to a bare minimum, k?

Originally posted by DarkOneLet's keep the name calling and yo mama jokes to a bare minimum, k?

Your mom.

Originally posted by mototool
All the haters: here's your chance to jump on me for "slamming" Howell Automotive. Howell, poor form my 420a companion. Combustion chamber work can lower compression, I'm sure you know that. You can perform combustion chamber work with a mill, if you have a nice mill.

Anything thing that takes away from compressed volume raises compression. anything that adds to it reduces compression. polish up the head around valves (removes material), even seat the valves deeper into the head, thicker head gasket all reduce compression. Mill it down, thin head gasket, and raise the compression, you will.

Mototool never left I think he was just spending more time tuning his tractor.



Exile Racing Technologies: http://www.exileracing.com
una salus victus
Mods List: http://highlander.dsmpower.com/sig.htm

i would have to say, whoever registered under another name... because he was too scared to talk shit under his own name...

pussy:thumbsdown

Originally posted by ajna_star
i would have to say, whoever registered under another name... because he was too scared to talk shit under his own name... pussy:thumbsdown

ip is unique
just some guy /me shrugs

YAY! I was right! Now if we say "Mototool" three times will he go away? :P I don't even care anymore.























Really. I don't. :P

Originally posted by DR1665
YAY! I was right! Now if we say "Mototool" three times will he go away? :P I don't even care anymore. Really. I don't. :P

ya gotta click your heels too :+



______________
Chris
96 ESI 5 spd
Milwaukee, WI

Originally posted by Z87RSMan
the Mustang is an American icon...I have one because it sounds great

Originally posted by bullox
ya gotta click your heels too :+

there's no place like 2gnt
there's no place like 2gnt
there's no place like 2gnt

Originally posted by Uberingram

Originally posted by bullox ya gotta click your heels too :+

there's no place like 2gnt there's no place like 2gnt there's no place like 2gnt

http://funwavs.com/wavfile.php?quote=4160&sound=5



_________
96 talon esi-t
san clemente, ca

DarkOne> Screw you guys, i'm going home.
chrysler kid> and fyi i have never HAD to shave.
DR1665> I'm sure your Talon and my Talon are all there needs to be, since we're the only two Talons that really matter around here

Originally posted by sarahdr1665
...some girls like the "nerdy" guys

Originally posted by AFX_ManufacturingAnd their is no way to mill a head or block to reduce compression.

All the haters: here's your chance to jump on me for "slamming" Howell Automotive. Howell, poor form my 420a companion. Combustion chamber work can lower compression, I'm sure you know that. You can perform combustion chamber work with a mill, if you have a nice mill.

That would be called a CNC Machinging center and most likely be a 5 axis maching. Kind of like refering to a new GT40 as a Model T. Yea same company and both are transportation, but the similarity ends there.

Originally posted by AFX_ManufacturingKind of like refering to a new GT40 as a Model T. Yea same company and both are transportation, but the similarity ends there.

Sometimes I have to dumb things down so other people here understand them :thumbsup