inline6 Posted November 5, 2014 Share Posted November 5, 2014 Anyone have a 44 mm Manley L series valve laying around? Also, SI brand part number is 8001SG or Nissan Comp 99996-N1100. I need to know what this stainless steel valve weighs. G Quote Link to comment Share on other sites More sharing options...
Xnke Posted November 6, 2014 Share Posted November 6, 2014 I have a set of the -N1100, I'll check one tonight. Quote Link to comment Share on other sites More sharing options...
inline6 Posted November 6, 2014 Author Share Posted November 6, 2014 Great! Thanks. Quote Link to comment Share on other sites More sharing options...
Xnke Posted November 6, 2014 Share Posted November 6, 2014 Took out the valves and went to weigh them, batteries are dead in the scale. Will buy some tomarrow and weigh them. Quote Link to comment Share on other sites More sharing options...
inline6 Posted November 9, 2014 Author Share Posted November 9, 2014 (edited) Hi Xnke, I'm going to be sending weights of the valves, spring retainers, valve keepers, and rockers to the Jim at MegacycleCams. He is going to do some valve motion math with my cam profile and see if the valve springs I am running are a problem with my cam. I've been wiping cam lobes repeatedly, and I have to track down the problem. Also, it would be nice to compare the weights of stainless valves to titanium ones - not sure that info exists in the forums. At least we'd have the stainless steel part done. I was under the impression that these valves were gone forever, but it looks like these are the same based on some forum searching: http://www.sivalves.com/ocforeign_valves.html Don't know if you or others need a source, so I thought I'd make a reference in this post. Thanks again for giving me some help here. Edited November 10, 2014 by inline6 Quote Link to comment Share on other sites More sharing options...
roger280zx Posted November 9, 2014 Share Posted November 9, 2014 Why not sunbelt? They are right down the road and have done more cam and valve train harmonics development on these engines than any one else this century. I also have the SI valves, but in 44/38 I will get them on the scale soon. Quote Link to comment Share on other sites More sharing options...
inline6 Posted November 9, 2014 Author Share Posted November 9, 2014 (edited) Why not sunbelt? They are right down the road and have done more cam and valve train harmonics development on these engines than any one else this century. I also have the SI valves, but in 44/38 I will get them on the scale soon. Last I heard, all the Datsun people that used to work there were gone. I bought the cam and the valve springs from Sunbelt in about 2008 from Jim Thompson who is no longer there. I've tried a bit to track the Datsun people from there, as I saw mention in these forums that some of them opened their own shops in GA. If I recall correctly, it looked to me like they closed up those shops too. From what I was able to tell, a company called Integral Cams was a big part of the SunBelt/Kinetic development picture. Steve Gruenwald, the owner of Integral Cams, was one of the few in the country to have invested in a very expensive cam machine (I can't remember what it is called). I think it makes development of cams much easier. I think my engine builder knows what it is called and that it is a six figure dollar item. Anyway, they shut down the business and sold their cam "masters" to Megacycle. So, Megacycle was able to make a replacement for me. Edited November 10, 2014 by inline6 Quote Link to comment Share on other sites More sharing options...
roger280zx Posted November 9, 2014 Share Posted November 9, 2014 Good on you for tracking down the machine. As far as the local L expertise a few of them are still floating around. I can look them up in a round about sort of way if you want. Quote Link to comment Share on other sites More sharing options...
inline6 Posted November 10, 2014 Author Share Posted November 10, 2014 Yeah, I'd like to have contact info for anyone in the area who is really knowledgeable with L-series cylinder heads, cams, and tuning Mikuni's - if they are looking for that kind of business. Quote Link to comment Share on other sites More sharing options...
roger280zx Posted November 14, 2014 Share Posted November 14, 2014 Well John Williams is here is Suwanee, right behind Balanced performance. I have a friend in Lawrenceville whose Mikunis run as good as anybody's. And I can dig up a couple of former Sunbelt engine guys. Quote Link to comment Share on other sites More sharing options...
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