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 461 Posts Member #: 91 Senior Member Live @ Worksop, Work @ Rotherham |
17th Feb, 2004 at 12:44:47am
Hi |
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 9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
17th Feb, 2004 at 09:02:04am
The head is 21.4cc, don't know about the pistons though, 6 or 7cc at a guess, someone will know.
Fastest 998 mini in the world? 13.05 1/4 mile 106mph
On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination, talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry. |
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 4642 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
17th Feb, 2004 at 11:01:32am
The standard Turbo pistons have a 12.5cc dish. I have measured two sets both from standard engines, and they were both this size. I was a little suprised at this so i measured my mates pistons as well and they're the same.
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Forum Mod 10980 Posts Member #: 17 ***16*** SouthPark, Colorado |
17th Feb, 2004 at 03:12:35pm
Phil is correct - 12cc or therabouts....
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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5795 Posts Member #: 80 AFRacing LTD Newbury, Berks |
17th Feb, 2004 at 03:45:49pm
hmmm
AlexF |
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461 Posts Member #: 91 Senior Member Live @ Worksop, Work @ Rotherham |
17th Feb, 2004 at 04:38:39pm
Thanks for the info guys, i supose i'm using this for stuff you guys have known for ages (I like to understand stuff). Using those fiqures i get a CR of 9.46:1. This sounds about right for a standard metty turbo, doesn't it?? |
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461 Posts Member #: 91 Senior Member Live @ Worksop, Work @ Rotherham |
17th Feb, 2004 at 04:42:09pm
So if i increase chamber volume to 27cc (is this practical) then that should lower to CR to around 8.5:1. Is this a good CR to run higher boost |
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Forum Mod 10980 Posts Member #: 17 ***16*** SouthPark, Colorado |
17th Feb, 2004 at 04:55:23pm
Don't forget to take into account the ring land, and piston flush height...
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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461 Posts Member #: 91 Senior Member Live @ Worksop, Work @ Rotherham |
17th Feb, 2004 at 07:39:45pm
Turbodave, took piston flush hieght (don't know what ring land is) also took the thickness of head gasket into account, used a web page that i picked up of Minifinity.com . It's http://www.wheelspin.net/calc/calc2.html Edited by Dicanio on 19th Feb, 2004. |
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