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Post by nitro on Feb 27, 2015 10:47:45 GMT
Rounder profile basicly means more duration. But on the basis of your timings it doesn´t look like (?). Is it measured at 1mm lift? How much valve clearance? The original intake cam of 1100W has not much duration. May be the made more for high end power / race application. For turbo it would be shit. Also your lobe center is really early (96°)! Do you have a foot spacer? Spacer moves cam timing to earlier.
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Post by danm54 on Feb 27, 2015 13:12:23 GMT
I'm measuring the valves at .050" lift. Not got a spacer under the barrels, just a base gasket and a .030" head gasket.
I'll drop the standard cam in and see what that comes out at. Forgot what clearances were now.
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Post by nitro on Feb 27, 2015 14:24:32 GMT
No spacer or bigger gasket??? With 96° LC as stock timing, I think there must be something wrong IMO. Also exhaust is to early with 108° compared to original timing.
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Post by danm54 on Feb 27, 2015 18:05:29 GMT
I'll take the cams out and swap the intake with a standard one. I'll also check the exhaust cam is standard too.
It never occured to me that I could have different cams, thought they were all standard.
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Post by danm54 on Feb 27, 2015 21:59:58 GMT
I have 3 sets of cams in total, 2 intakes have the bigger profile, one is marked right on the end, the other isn't. The final one is marked right, has a smaller profile but has 'MRL' or something like that engraved by the sprocket. I've installed that one but my valve clearances are now huge .50mm to .65mm.
2 exhaust cams have the wrong letter stamped on the end but they all seem to have the same profile so I've used the one thats stamped right.
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