Author Topic: CC chambers  (Read 2217 times)

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Offline bwaller

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CC chambers
« on: February 15, 2010, 07:52:26 am »
Any of the 500 guys cc their combustion chambers?

The last head I did with only a graduated cylinder and all four were 13cc's so that's what I was banking on. This time with a burette and a head with only 0.005" milled off the deck I get exactly 12cc's....big difference in CR value that I wasn't counting on.

Quess I'm just looking for validation.  :-\

Offline Sam Green Racing

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Re: CC chambers
« Reply #1 on: February 15, 2010, 07:59:39 am »
You'll need to run it on decent fuel now Brent, no more of that distilled maple syrup  ;D ;D ;D ;D ;D ;D ;D

Sam. ;)
C95 sprint bike.
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Offline Rod

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Re: CC chambers
« Reply #2 on: February 15, 2010, 08:39:11 am »
quick and dirty calc - 0.005" (0.127mm) off the head would only be about 0.3cc reduced volume.
« Last Edit: February 15, 2010, 08:42:08 am by Rod »

Offline bwaller

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Re: CC chambers
« Reply #3 on: February 15, 2010, 09:50:19 am »
The other head had some material removed as well and 1cc isn't very much but I'm sure of these chambers and wonder if I was off on the other head. If anyone has checked I'd be curious.


Sam, don't underestimate the explosive power of maple!  8)

Offline bwaller

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Re: CC chambers
« Reply #4 on: February 19, 2010, 05:25:20 am »
I'm a little embarrased to say I rechecked these chambers and I had misread the burette, the 500 chambers are indeed 13cc's.

It's not earth shattering news I know.

Offline Rod

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Re: CC chambers
« Reply #5 on: February 19, 2010, 05:42:18 am »
I'm a little embarrased to say I rechecked these chambers and I had misread the burette, the 500 chambers are indeed 13cc's.

It's not earth shattering news I know.

Its difficult for us chaps to admit our mistakes, which is why God created women so that they could constantly point them out for us.

Offline MRieck

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Re: CC chambers
« Reply #6 on: February 19, 2010, 06:00:00 am »
I'm a little embarrassed to say I rechecked these chambers and I had misread the burette, the 500 chambers are indeed 13cc's.

It's not earth shattering news I know.
           Never underestimate the hallucinogenic qualities of maple syrup Brent.
Owner of the "Million Dollar CB"

Offline turboguzzi

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Re: CC chambers
« Reply #7 on: February 19, 2010, 11:36:08 am »
still got the head appart so can measure, thing is that mine is heavily milled.....

let me know if it helps

BTW, Ti retainers are here!

Offline bwaller

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Re: CC chambers
« Reply #8 on: February 19, 2010, 01:35:29 pm »
It's ok TG...I'm better now.  ::)   Thanks anyway.

With only 0.125mm milled off what I believe is a stock surface the measurement is 13cc.

The retainers look good huh?

Offline turboguzzi

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Re: CC chambers
« Reply #9 on: February 19, 2010, 02:29:33 pm »
It's ok TG...I'm better now.  ::)   Thanks anyway.

With only 0.125mm milled off what I believe is a stock surface the measurement is 13cc.

The retainers look good huh?

fugly!!!!

do you know how mucj lighter than stock they are

Offline bwaller

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Re: CC chambers
« Reply #10 on: February 19, 2010, 04:51:32 pm »
Stock are 8.9g's, the Ti are 5.1