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Home > Help Needed / General Tech Chat > chambering

wolfie

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8215 Posts
Member #: 90
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Somewhere around Swindon

6th Jan, 2005 at 01:24:21pm

how do you work out how much chambering you need to get done ?

i mean if you want an 8:1 have say a 1293 with 15cc pistons hows the volum of the head worked to get 8:1

did that make sense? i need more drugs i think

Crystal Sound Audio said:
Why wolfie...you should have your name as Fuckfaceshithead !


"A common mistake that people make when trying to design something completely
foolproof is to underestimate the ingenuity of complete fools."-Douglas Adams

Mike

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1171 Posts
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Sunny Sussex

6th Jan, 2005 at 02:09:19pm

y know what u mean, theres a cool spreadsheet around somewhere that'll calculate it for you, i'll see if i can find it...

AlexF2003

5795 Posts
Member #: 80
AFRacing LTD

Newbury, Berks

7th Jan, 2005 at 08:20:22am

this one?

http://www.afracing.com/cr.xls

alex

AlexF

Mike

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1171 Posts
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Sunny Sussex

8th Jan, 2005 at 02:34:17pm

thats the one

Jase

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Lutterworth

8th Jan, 2005 at 11:59:26pm

Hi just tried using the chart but call me stupid but not sure if i am doing it right if i am building a 1293 and using 18cc pistons, and want to achieve 7.1 compression, what chamber size is required and is any lower compression than this going to be drivable


wolfie

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8215 Posts
Member #: 90
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Somewhere around Swindon

12th Jan, 2005 at 04:40:13pm

sure its correct?

if i want a 8:1 comression using a +20 overbore i only need 15.5 cc pistons and a standard head?

Crystal Sound Audio said:
Why wolfie...you should have your name as Fuckfaceshithead !


"A common mistake that people make when trying to design something completely
foolproof is to underestimate the ingenuity of complete fools."-Douglas Adams

turbodave16v
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10980 Posts
Member #: 17
***16***

SouthPark, Colorado

12th Jan, 2005 at 05:40:03pm

That ain't right!

Stock turbo pistons are 12cc, so there is somet amiss in the calcs or your inputting...

Edited by turbodave16v on 12th Jan, 2005.

On 17th Nov, 2014 Tom Fenton said:
Sorry to say My Herpes are no better


Ready to feel Ancient ??? This is 26 years old as of 2022 https://youtu.be/YQQokcoOzeY


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