When to shim a head
03-07-2009, 04:51 AM
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When to shim a head
OK need a little help. Can anyone help me out on the art of head shimming?
When going to 30% or 33% nitro fuel. How do I know when to shim or not?
And how do you figure out, how much you need to shim???
Are there any links or books I can check out on this subject.[sm=confused.gif]
Thanks in advance!!
When going to 30% or 33% nitro fuel. How do I know when to shim or not?
And how do you figure out, how much you need to shim???
Are there any links or books I can check out on this subject.[sm=confused.gif]
Thanks in advance!!
03-07-2009, 05:06 AM
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RE: When to shim a head
I went from 20% to 30% with the stock 3.3, and didn't have to shim the head.
[link=http://www.*********.org/cars_eng-tuning.htm]Engine Tuning[/link]
[link=http://radiocontrol.wikia.com/wiki/Nitro_fuel_myths]Nitro Fuel Myths (head shim)[/link]
[link=http://www.rcracingusa.net/headclear.htm]How to check deck heightand head clearance[/link]
[link=http://www.*********.org/cars_eng-tuning.htm]Engine Tuning[/link]
[link=http://radiocontrol.wikia.com/wiki/Nitro_fuel_myths]Nitro Fuel Myths (head shim)[/link]
[link=http://www.rcracingusa.net/headclear.htm]How to check deck heightand head clearance[/link]
03-07-2009, 05:41 AM
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RE: When to shim a head
ORIGINAL: 808SC8
I went from 20% to 30% with the stock 3.3, and didn't have to shim the head.
[link=http://www.*********.org/cars_eng-tuning.htm]Engine Tuning[/link]
[link=http://radiocontrol.wikia.com/wiki/Nitro_fuel_myths]Nitro Fuel Myths (head shim)[/link]
[link=http://www.rcracingusa.net/headclear.htm]How to check deck heightand head clearance[/link]
I went from 20% to 30% with the stock 3.3, and didn't have to shim the head.
[link=http://www.*********.org/cars_eng-tuning.htm]Engine Tuning[/link]
[link=http://radiocontrol.wikia.com/wiki/Nitro_fuel_myths]Nitro Fuel Myths (head shim)[/link]
[link=http://www.rcracingusa.net/headclear.htm]How to check deck heightand head clearance[/link]
Just what I was looking for. And ok on the 3.3's I run mostly 3.3's but have one Picco .26 red dot and lokking to get a OS mill. .18 or .21 not sure yet.
Thanks again
