[Chrysler300] CCing to determine compression ratio

["Bob Jasinski" <rpjasin@xxxxxxxxxxx>]

Gary Barker has sent me a detailed explanation of how CCing is done. See
below for those that have an interest.

Bob J
-----Original Message-----
From: Gary Barker [mailto:gbarker@xxxxxxxxxxxx] 
Sent: Saturday, February 09, 2008 11:03 PM
To: Bob Jasinski
Subject: Re: [Chrysler300] Replacing Heads & Gasket Sealer

Not at all.  I wonder if I should finish the procedure and print the 
Formulas to complete the subject.?         Gary Barker

--------------------------------------------------
From: "Bob Jasinski" <rpjasin@xxxxxxxxxxx>
Sent: Saturday, February 09, 2008 8:53 AM
To: "'Gary Barker'" <gbarker@xxxxxxxxxxxx>
Subject: RE: [Chrysler300] Replacing Heads & Gasket Sealer

> Gary,
>
> Thanks much for the details of the procedure, I had no idea it was so 
> involved.  And to think I thought cc meant to surface the heads!  I 
> think the list could benefit from this, any problem with me sharing it?
>
> Bob
>
> -----Original Message-----
> From: Gary Barker [mailto:gbarker@xxxxxxxxxxxx]
> Sent: Friday, February 08, 2008 7:13 PM
> To: Bob Jasinski
> Subject: Re: [Chrysler300] Replacing Heads & Gasket Sealer
>
> You take a peace of clear sold plastic that is larger than the cylinder. 
> You
> drill a hole in the center.  Then you level the head from end to end 
> and also crossways.  You take a small amount of grease around the 
> cylinder chamber.  Lay the plastic on the head so the grease seals the
chamber.
> Then
> you take a Burette that is marked in Cubic Centimeters .  You can use 
> any fluid but water with a little food coloring works great.  You poor 
> the fluid into the cylinder through the drilled hole. As you poor the 
> fluid into the chamber it forces the air out.  You keep pouring until 
> the last little air bubble is out.  Then you read how much fluid 
> missing from the Beret.  You need to have a 100 CC beret  to start 
> with because most MOPAR heads are less than 100cc The head gasket and 
> the Cylinders are measured  Mechanically.
> There is a
> Formula to do all the calculations.   You take your Combustion Chamber, 
> Head
>
> Gasket and the  Deck height of the piston in the Block and the 
> cylinder area with the Piston all the way down.  You add all that up 
> and then your total with the piston all the way up.  The formula will 
> give you your Compression ratio.  Then if its not what you want you 
> start making changes.
> Thinner or thicker head gaskets.  Resurface the heads or surface the 
> block.
> Removing or adding area .020" of a inch will change your compression
> approximately   0.5 compression ratio.
>
> When you are all done then you index your spark plugs .
>    I hope this helps you.  If you think you want to give it a try,  I 
> will see if I can send you a article on the whole process.  It is very 
> important to check if you have engine work done.  Boring Raises the 
> compression.
> Thicker head gasket lowers it. ( Most new Gasket sets give you .060" 
> thick gasket to lower the compression to keep the Fed's happy.  Most 
> older MOPAR engines came with steel gaskets that are .020" thick. You 
> can see how it would effect your performance.  If you had 10.0 to 1 
> before .  just going to a .o6o" gasket will lower your compression 
> down to approx. 8.0 to one.
> Lots of Luck    Gary Barker
>
>
> Sent: Friday, February 08, 2008 12:10 PM
> To: "'Gary Barker'" <gbarker@xxxxxxxxxxxx>
> Subject: RE: [Chrysler300] Replacing Heads & Gasket Sealer
>
>> Gary,
>>
>> How do you go about doing this?  Do you fill it with fluid and 
>> measure the volume by pouring it into a measuring cup or something?
>>
>> Bob
>>
>> -----Original Message-----
>> From: Gary Barker [mailto:gbarker@xxxxxxxxxxxx]
>> Sent: Thursday, February 07, 2008 2:23 AM
>> To: Bob Jasinski
>> Subject: Re: [Chrysler300] Replacing Heads & Gasket Sealer
>>
>> That's what they call it when you measure the exact size of  the 
>> combustion chamber.  It is measured in CC's.  Cubic Centimeters
>>
>>
>>                           Gary Barker
>> --------------------------------------------------
>> From: "Bob Jasinski" <rpjasin@xxxxxxxxxxx>
>>
>>
>>
>> Sent: Wednesday, February 06, 2008 8:53 AM
>> To: <chrysler300@xxxxxxxxxxxxxxx>
>> Subject: RE: [Chrysler300] Replacing Heads & Gasket Sealer
>>
>>> Gary,
>>>
>>> What does "cc" stand for?
>>>
>>> Bob
>>>
>>>  _____
>>>
>>> From: Chrysler300@xxxxxxxxxxxxxxx 
>>> [mailto:Chrysler300@xxxxxxxxxxxxxxx]
>>> On Behalf Of Gary Barker
>>> Sent: Tuesday, January 29, 2008 1:02 AM
>>> To: mplindahl@xxxxxxxxxxxxx; richard@xxxxxxxxxxxx; 
>>> chrysler300@xxxxxxxxxxxxxxx; mwl1967@xxxxxxx; Gary Barker
>>> Subject: Re: [Chrysler300] Replacing Heads & Gasket Sealer
>>>
>>>
>>>
>>> I cc the heads on all Mopar engines I build. Different customers 
>>> want different ratios plus if you don't you won't get the best
performance.
>>> As a rule of thumb. for every .020" that you remove either buy using 
>>> different thickness gaskets or milling the head or block changes 
>>> your compression about 0 .5 % so if you have 10:1 and you add .020" 
>>> thicker gasket , you will have 9.5:1 compression. I try to take them 
>>> to the tenth when custom building a engine. Just a Little info. Gary 
>>> Barker
>>>
>>> From: <mwl1967@aol. <mailto:mwl1967%40aol.com> com>
>>> Sent: Monday, January 28, 2008 6:15 PM
>>> To: <mplindahl@sbcglobal <mailto:mplindahl%40sbcglobal.net> .net>; 
>>> <richard@zippynet. <mailto:richard%40zippynet.com> com>; 
>>> <chrysler300@ <mailto:chrysler300%40yahoogroups.com> 
>>> yahoogroups.com>
>>> Subject: Re: [Chrysler300] Replacing Heads & Gasket Sealer
>>>
>>>>
>>>> In a message dated 1/28/2008 1:02:18 PM US Mountain Standard Time, 
>>>> mplindahl@sbcglobal <mailto:mplindahl%40sbcglobal.net> .net writes:
>>>>
>>>> FYI, I am using the newer style, open-chamber heads that I was told 
>>>> are desirable for the gas these days.
>>>> The head surface was machined to guarantee flatness
>>>>
>>>>
>>>> Years ago when I built the 413 for my 300K I scoffed a pair of 
>>>> recently rebuilt heads off of a 440 that was to be a race engine. 
>>>> The problem, I later found out was that the compression was lowered 
>>>> way too much in changing from a closed-chamber head with steel shim 
>>>> gaskets to an open chamber head with composite gaskets.
>>>>
>>>> Although the car essentially runs fine, crossrams and all, it has 
>>>> never had the guts to really pull the car hard. ( just ask don Cole 
>>>> LOL ) Later calculations indicated that the compression was dropped 
>>>> from around 9.5:1 down to around 8:1 with a corresponding loss of 
>>>> torque and HP. Several experts have told me I killed a minimum of 
>>>> 50hp. The bright side of the picture is that
>>>
>>>> the
>>>> car runs all day long on 87 octane garbage with nary a hint of 
>>>> detonation.
>>>>
>>>> When this 16 year old engine gets redone again I'll be going back 
>>>> to the closed chamber heads. If you must use the open chamber heads 
>>>> you already have please consider using the oem style steel shim 
>>>> gaskets so as to mitigate compression loss.
>>>>
>>>> Mike Laiserin
>>>> Phoenix, AZ
>>>>
>>>>
>>>>
>>>> **************Start the year off right. Easy ways to stay in shape.
>>>> http://body.
>>> <http://body.aol.com/fitness/winter-exercise?NCID=aolcmp003000000024
>>> 89
>>> >
>>> aol.com/fitness/winter-exercise?NCID=aolcmp00300000002489
>>>>
>>>>
>>>> [Non-text portions of this message have been removed]
>>>>
>>>>
>>>>
>>>> To send a message to this group, send an email to:
>>>> Chrysler300@ <mailto:Chrysler300%40yahoogroups.com> yahoogroups.com
>>>>
>>>> For list server instructions, go to http://www.chrysler 
>>>> <http://www.chrysler300club.com/yahoolist/inst.htm>
>>> 300club.com/yahoolist/inst.htm
>>>>
>>>> For archives go to http://www.forwardl
>>> <http://www.forwardlook.net/300-archive/> ook.net/300-archive/
>>>> Yahoo! Groups Links
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>>
>>>
>>> [Non-text portions of this message have been removed]
>>>
>>>
>>>
>>> To send a message to this group, send an email to:
>>> Chrysler300@xxxxxxxxxxxxxxx
>>>
>>> For list server instructions, go to
>>> http://www.chrysler300club.com/yahoolist/inst.htm
>>>
>>> For archives go to http://www.forwardlook.net/300-archive/
>>> Yahoo! Groups Links
>>>
>>>
>>>
>>>
>>
>>
>
> 



To send a message to this group, send an email to:
Chrysler300@xxxxxxxxxxxxxxx

For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm

For archives go to http://www.forwardlook.net/300-archive/ 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/Chrysler300/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/Chrysler300/join
    (Yahoo! ID required)

<*> To change settings via email:
    mailto:Chrysler300-digest@xxxxxxxxxxxxxxx 
    mailto:Chrysler300-fullfeatured@xxxxxxxxxxxxxxx

<*> To unsubscribe from this group, send an email to:
    Chrysler300-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/