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david3533
Site Subscriber
Joined: 02 Oct 2004
Posts: 1575
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| Posted:
Tue Dec 07, 2004 2:06 pm |
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what is the number of deg's before BDC an exhaust valve opens?
so as I can work the maths for my exhaust manifold. I know you worked some figures for me chris but i'd like to check them and see how you worked them out. |
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Chris H
Forum Moderator
Joined: 02 Mar 2004
Posts: 19978
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| Posted:
Wed Dec 08, 2004 5:36 am |
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I just 'reasoned' the figures, nobody has firgures for the standard cams. This is due to renault not publishign anything, you caN GEt THE 172 PROFILES ETC NO PROB. soz caps
The lift is known to be around 9.1 - 9.2mm lift, I reasoned the cams to be around 254 duration with timing around 17/57 57/17
this duration and timing is the same as the tamest aftermarket cams but they have a touch more lift. |
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david3533
Site Subscriber
Joined: 02 Oct 2004
Posts: 1575
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| Posted:
Wed Dec 08, 2004 6:07 am |
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cheers chris I want to start on my manifold so the sooner I can come up with a design the better!lol, thanks again mate |
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Chris H
Forum Moderator
Joined: 02 Mar 2004
Posts: 19978
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| Posted:
Wed Dec 08, 2004 6:13 am |
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