milling an H22 head

[HondaFan81]

hondafan, im not sure if its sickening how much you know, or im just jealous...

Thanks.....I think. Honestly, I'm just obsessed, it's what I think about day in - day out right now Maybe it will stop after I get my two projects done, or maybe it will just progress. I've often thought about getting with some friends and open a side business modifying cars out of a garage, etc. It's a dream/passion of mine.

[HondaFan81]

Is this with a stock headgasket on JDM h22a? or USDM?

Stock headgasket on JDM H22 (10.6 CR stock)

[92ex]

hondafan, im not sure if its sickening how much you know, or im just jealous...

[F22-GURU]

http://www.csgnetwork.com/compcalc.html

[LX Rida]

.010" mill about 11.0

.015" mill about 11.1

.020" mill about 11.3

.025" mill about 11.4

.030" mill about 11.6

Is this with a stock headgasket on JDM h22a? or USDM?

[h22accordaz]

Lol... Is there actually a "set" equation to figure it out? Just wondering... Thank you for all the info HondaFan! Helps me a lot!

[KillerCam282]

^^^See what I was talking about.

[HondaFan81]

how'd you figure that out? I used this:

http://honda-tech.com/zerothread?id=438456

Made my own engine calculator that I trust because I came up with the formulas. I've tested it out against others and using real-world #'s, etc it's all good

Ask around, some people on this board have used it or been exposed to it. Hit me on AIM if you're interested (Accord EX SE), I have it on Excel.

[d112crzy]

how'd you figure that out? I used this:

http://honda-tech.com/zerothread?id=438456

[HondaFan81]

.010" mill about 11.0

.015" mill about 11.1

.020" mill about 11.3

.025" mill about 11.4

.030" mill about 11.6

[TÜNE.FREE]

that and... if u mill to far then ya.. valve tap!!! bad news written all over.. anyways, u should be fine with .020 just dont go crazy... but ya, anything under 11.5:1 u should be alright with pump gas... hell, brian was running 12.2:1 in the integra and had very little pinging (from Tokyo Speed Pros) anyways u should be ok on pump still....

[cb7-R]

I can tell you for a fact that .030 is the most you can go on an H22 block.( I researched and done it.) Any more is too much. However .30 requires adjustable cam gears in order to advance your timing 2 degrees (I beleive its that much) As I understand it .15 is the maximum you can mill with out having to readjust your cams. In fact i only went .15 myself.

[KillerCam282]

Contact Cisco aka HondaFan81. I got the Engine calculator too, but I am too tired and lazy to use it right now... . I will see in a minute if i feel like giving you the exacts.

EDIT: I got the USDM Prelude engine facts...and it makes a huge diff. I am too tired to look this up.

[oneoffaccord]

i had my head milled .040 on my f22a a few years back and i notice a difference

[d112crzy]

clay your engine, its the only way to see if its gona be safe. cuz with those cams, your valves might hit the pistons, and thats a big no no. and with those mods, you'll want to get some engine management.

-Jose