If this is a set that will handle my springs then yes I'll go for it... But if its not strong enough to resist stretch and only prevent gear wear, then I'm gonna stick with what I have. I'm just tired of stretching chains. I remember TCE saying these single rollers are not made to be stronger per-say... but more just reduce friction and gear tooth wear.
The following information is based on my conversations with chain manufacturers/distributors.
In regards to tensile strength, stock timing chains are stronger than roller chains due to their construction. It would be a waste of money to do a tensile strength test of the chains as the longevity of a roller chain comes from the pivot design where the hardened link pin is pivoting inside a smooth hardened tube instead of layers of short holes that were stamped in a die.
Everyone, including myself, always refers to it as chain stretch but the links aren't stretching. Instead, the pivots are wearing out like a door hinge on an old car. A worn chain will sag like that door when you hold it out sideways.
The double roller has two rows of smaller links which gives it more tensile strength but, more importantly, has longer pins that provide a larger wear surface. Double roller pins are about 50% longer but smaller in diameter. Some of the extra wear area is negated due to the reduction in pin diameter.
The only way to accurately test chains would be to run them on an engine as simulating the harmonics of an IC engine would be near impossible.
So I guess I used the wrong words...
If this roller chain will outlive my Cryo stock one as far as the so called "stretch" goes, then yes I will probably get in on this deal. Since strength is not an issue, I have yet to hear someone break a stock chain.
I would think a roller would be less likely to "stretch" because of how the chain is made. It's less likely to wear and get sloppy between the links which gives it the "stretch".
EDIT: Jon beat me to it. Not reloading the thread before posting FTL!
__________________ New 2010 project (click image)
1994 3100 BERETTA. 200,000+ miles
16.0 1/4 mile when stock. Now ???
Original L82 Longblock with LA1, LX9, LX5 parts
Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.
You are the one wanting to put it together. Perhaps you should ask Marc to see if he would even be willing to do a group buy, and go from there on numbers.
1992
Linear Mode
