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| Home > Help Needed / General Tech Chat > metro turbo challenge class 'c' compression ratio | |||||||
 89 Posts Member #: 7165 Advanced Member Solihull/Birmingham |
13th Oct, 2009 at 05:26:33pm
Hi, does anyone know what the metro turbo challenge cars in class 'c' were allowed to run as their compression ration & head spec. Or does anyone know any good web-sites that detail specifics of these cars. Any help would be appreciated. Simon. |
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 4641 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
13th Oct, 2009 at 05:36:03pm
I believe it's 8.5-1, I'm sure our resident racer John Flanigan will be able to confirm.
Edited by Turbo Phil on 13th Oct, 2009. |
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 4360 Posts Member #: 1459 En-suite user Braintree, Essex |
13th Oct, 2009 at 06:32:20pm
Maximum permitted is 8.65:1. Just had a look at the regs
On 19th Jan, 2010 wil_h said:
I would start the furthest place from the finish. On 24th Mar, 2012 apbellamy said:
I feel all special knowing that I've given your mum my wood. Been neglecting Turbo'd 'A' series.............. |
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89 Posts Member #: 7165 Advanced Member Solihull/Birmingham |
13th Oct, 2009 at 08:26:05pm
Sorry, should have said about this when I wrote this down. I bought this engine http://www.turbominis.co.uk/forums/index.php?p=vt&tid=308354 As I am building a supercharged engine. I was basically going to have one of my spare turbo engine built, just like this one, but then it came up for sale. I went to take a look and it is as described, so bought , which saved a fair bit of money over paying for all the work. However the guy selling was really not sure about what the CR was, so I tought if I have to open the chmabers up a bit more it's not the end of the world. I think I will have to then, as this sounds a bit high. It's running the standard exhaust valves alright, but the inlets look bigger. I will take some pics and attach to the post to see what everyone else thinks. |
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89 Posts Member #: 7165 Advanced Member Solihull/Birmingham |
14th Oct, 2009 at 11:06:59pm
Here are the pics, any thoughts |
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 261 Posts Member #: 713 Senior Member Western Australia |
15th Oct, 2009 at 12:40:08am
Get a gauge and just do a compression test instead of pulling the head off. On 24th Dec, 2008 Nic said:
eyh? im drubj but very confused##]#IU |
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 1424 Posts Member #: 2810 Formally spanner181187 Dublin, Ireland |
15th Oct, 2009 at 12:24:21pm
On 15th Oct, 2009 AWDmoke said:
Get a gauge and just do a compression test instead of pulling the head off. That wont tell you anything though. It will just give you a pressure. To find out the ratio it is easiest to pull the head off On 12th Nov, 2009 Paul S said:
I think Gary OS has taken over my role as the forum smart arse  On 30th Apr, 2010 Rod S said:
Gary's description is best |
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89 Posts Member #: 7165 Advanced Member Solihull/Birmingham |
15th Oct, 2009 at 10:27:21pm
Cheers Guiys, heads already off, e-mailing benros some pics to see what he thinks. |
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4641 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
16th Oct, 2009 at 10:15:37am
You won't be able to tell the size of the chambers from a picture though ?
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