Alfanatiker Posted May 2, 2020 Report Share Posted May 2, 2020 Are camshaft data available? Lift in/out? Timing in/out? Duration? Overlap? Lobe separation (LSA)? Everything is of interest if anyone knows. Quote Link to comment Share on other sites More sharing options...
SRDT Posted May 3, 2020 Report Share Posted May 3, 2020 It's probably mostly right but don't follow blindly: Quote Link to comment Share on other sites More sharing options...
Alfanatiker Posted May 9, 2020 Author Report Share Posted May 9, 2020 On 5/3/2020 at 10:41 AM, SRDT said: It's probably mostly right but don't follow blindly: Thanks. It is a lot of really nice information here! But I cant understand where I find the data on the camshafts? Are they also in the sheet? My French is not so good Quote Link to comment Share on other sites More sharing options...
SRDT Posted May 9, 2020 Report Share Posted May 9, 2020 A.O.A. 19°34' avant P.M.H = the inlet valve is opening 19°34' before top dead center R.F.A. 56°24' après P.M.B = the inlet valve is closing 56°24' after bottom dead center A.O.E. 55°10' avant P.M.B = the exhaust valve is opening 55°10' before bottom dead center R.F.E. 12°50' après P.M.H = the exhaust valve is closing 12°50' after top dead center All of this with a theoretical valve clearance of 0.45mm on both sides. Quote Link to comment Share on other sites More sharing options...
Alfanatiker Posted May 9, 2020 Author Report Share Posted May 9, 2020 52 minutes ago, SRDT said: A.O.A. 19°34' avant P.M.H = the inlet valve is opening 19°34' before top dead center R.F.A. 56°24' après P.M.B = the inlet valve is closing 56°24' after bottom dead center A.O.E. 55°10' avant P.M.B = the exhaust valve is opening 55°10' before bottom dead center R.F.E. 12°50' après P.M.H = the exhaust valve is closing 12°50' after top dead center All of this with a theoretical valve clearance of 0.45mm on both sides. Thank you. That gives these numbers (for future referance). Intake Duration is 255.97 degrees. Exhaust Duration is 247.99 degrees.Installed Intake Centerline is 108.42 degrees ATDC.Installed Exhaust Centerline is 111.17 degrees BTDC.LSA is 109.8 degreesOverlap is 32.40 degrees. Is valvelift also available? Quote Link to comment Share on other sites More sharing options...
speaksgeek Posted July 7, 2020 Report Share Posted July 7, 2020 You could buy one and measure it? https://www.pieces-de-rechange-classic.com/505/185256-arbre-a-came.html Quote Link to comment Share on other sites More sharing options...
V-M Posted September 25, 2020 Report Share Posted September 25, 2020 If I remeber correctly 7,2mm original and 8.4mm danielson cam Quote Link to comment Share on other sites More sharing options...
Alfanatiker Posted March 24, 2021 Author Report Share Posted March 24, 2021 On 9/25/2020 at 8:07 PM, V-M said: If I remeber correctly 7,2mm original and 8.4mm danielson cam Is this lift at lobe or at valves? What is the ratio of the valve rockers? Quote Link to comment Share on other sites More sharing options...
Alfanatiker Posted March 27, 2021 Author Report Share Posted March 27, 2021 On 3/24/2021 at 11:26 PM, Alfanatiker said: Is this lift at lobe or at valves? What is the ratio of the valve rockers? I´ll answer myself (in case the facts actually are correct and for future reference on this forum). According to this guy http://www.matrasport.dk/forum/index.php?PHPSESSID=q6qt13hp42pnih0g01g7oorl30&topic=2750.msg21168#msg21168 then the rocker ratio on the Murena 2,2 (same engine but without turbo) is 1,38. This would make out to be 7,2mm x 1,38 = 9,9936mm lift at the valve. And that makes perfect sense. Is it the same lift on intake and exhaust? Quote Link to comment Share on other sites More sharing options...
V-M Posted March 29, 2021 Report Share Posted March 29, 2021 They are same lift. Only difference is that oil channel. Quote Link to comment Share on other sites More sharing options...
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