I ran a custom made set back in the 90’s. It worked very well, never a problem. Later I ran a dsg set. Those were not built for long term daily drivers. The first set survived multiple grenaded engines and the dsg looks better built. I did have a couple of the chains fail and cause destruction, so that’s why the $ was spent, and we couldn’t find any made back then.
Years Later, after re adjusting my timing at the annual task, and reading Leroy was starting to make them, i wanted to know about longevity. I was inclined to find dsg because I used them already with success, but everyone at the time said they were nla. Then I asked here about longevity and had TONS of phone calls to me and my own reading into everything, especially some engineering notes found about the 6.9 ford international- it made up my mind.
Most all of the calls were made in private because there are people on opposition with others and don’t want to get dragged in, including the guy that sent me the ford info.
Overwhelming proof that all gear system kills chains. Simple lower cost of build is why chain was used. Most of the info about vibrations causing ip issues were started by people selling parts that did not sell the dsg set years before. Simple economic reason to shoot it down. Wether that was their honest opinion and they chose not to sell because of it, or couldn’t sell so talked it down- who knows. Ford ip outlasts gm ip even when the same exact manufacturer, so...yeah...
I was under the impression Leroy bought rights to and started remaking them, as they seemed the same as what I rembered from years before. Still on my shelf awaiting to be joined by other parts to be sent with other parts to Chris for coating.
Chains work obviously, but since I don’t want to ever get inside this engine again, it gets the gears.
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