Are these tensioners really critical on these bikes? I just removed OEM tensioners from an engine which had 72.000km on it... and it hardened and was worn only a little. Mostly it was hardening from age..
I installed new oem's back into my turbo engine... also the standard camchain (as I have also the standard camshaft and springs).
Perhaps if you have tough valve springs and a big camshaft it would make sense, otherwise I'm a bit in doubt to be honest..
The way a turbo spools up I wouldn't hesitate using a heavy duty cam chain, I use them anyway, any improvement on the old technology is good, same with the tensioner, get some of those little pieces of the wheel in an oil gallery and kiss your hipo engine goodbye....
Hmmm well as long as its the standard springs and camshaft... I don't think it matters much. I figured basically it spools up as fast as you can rev it in neutral. :-)
The small pieces coming off your rollers and stuff won't get into you oil gallery as it will always end up at the filter mesh of the pump and then the really small pieces go through your oil filter.
I used to be worried about all this stuff too, but over the years I noticed most of the times you want to "fix" too much. :-)
Yes, It will spool up like that but with load, there's no load in neutral, big difference, with the small rubber parts, if they are small enough they will go straight through the pump and gather slowly in the galleries, it may never happen but for me, I would rather have the better, newer stuff and not have to worry , I'm over taking risks with expensive engines.... Enjoy the turbo....
I partly don't agree.. sorry about that.
The load on the camshaft is the same wether you are in neutral or in gear. The chain just rotates the camshaft and pushes the valves down, not more then that.
If valve spring pressure increases, you increase forces in your chain. So for a NA engine with a big cam and strong springs.. yes, it is needed especially as Honda fit a better camshaft in the F2 engine which had a different camshaft and springs.
The primary chains in my engine however, they are getting hell now lol...Would like to have a better tensioner and HD chains over there but I didn't want to split the cases and everything so I will check them after a year or something.
My engine has a fleebay 836cc kit and a modified head, but cost maybe only 500 euros in the end.. (excl. turbo) so it's a nice test for everyone else to see how much these engines can take with double torque.