?

2005 Corolla XRS
2ZZ 6-speed

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?

2005 Corolla XRS
2ZZ 6-speed

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..

You can have it cheap, fast or good. Pick any two.

If you want it cheap and fast, it's not going to be good.
If you want it cheap and good, it's not going to be fast.
If you want it good and fast, it's not going to be cheap.

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

Visit the Howell Automotive Open House August 20th, 2005. The largest gathering of Chrysler 2.0 engines on the planet.

US Small Business Administration Export Business of the Year for 2003

Visit Howell Automotive at www.howellautomotive.com

Mototool - The other white meat!

"He might just be more badass than Dino." -DR1665

he's back folks!

__________________________________________
~Chris
03 SRT-4

Mototool - The other white meat!

"He might just be more badass than Dino." -DR1665

Originally posted by mototool

Originally posted by Uberingram he's back folks!

I never left.

__________________________________________
~Chris
03 SRT-4

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! 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.

You can have it cheap, fast or good. Pick any two.

If you want it cheap and fast, it's not going to be good.
If you want it cheap and good, it's not going to be fast.
If you want it good and fast, it's not going to be cheap.

Mototool - The other white meat!

"He might just be more badass than Dino." -DR1665

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! 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.

______________________________
If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.

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Mototool - The other white meat!

"He might just be more badass than Dino." -DR1665

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

puss

2005 Corolla XRS
2ZZ 6-speed

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... puss

__________________________________________
~Chris
03 SRT-4

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























Really. I don't.

Originally posted by bullox
ya gotta click your heels too

__________________________________________
~Chris
03 SRT-4

Visit the Howell Automotive Open House August 20th, 2005. The largest gathering of Chrysler 2.0 engines on the planet.

US Small Business Administration Export Business of the Year for 2003

Visit Howell Automotive at www.howellautomotive.com

Mototool - The other white meat!

"He might just be more badass than Dino." -DR1665