Simplex Timing Chain

[duff-man]

My engine is in need of having the upper tensioner replaced, whilst getting this work done I would like to know if it’s worthwhile going to the Simplex Chain setup that is now available, and what if any advantage does it have?

Obviously whilst having the tensioner done the half time bearing will be replaced as I know these can be an issue.

Would there be anything else worth doing whilst the cover is off and engine out?


Thanks in advance,
Mark

[jcpgasoline]

I don't know about the durability of the product but the benefits seems to be centred largely around the lower mass which requires less force (torque) to accelerate and stores less energy, those savings being passed on to the wheels. The closest analogy I can think of is a lightened flywheel.

[Don1]

It takes a load of mass out of the engine, and helps the car rev faster (I believe).

Basically it's two thumbs up from me.

[DonkeyApple]

I'm running this. As part of a raft of changes it makes sense if you have a high and fast reving engine. It does remove a reasonable amount of weight but I'm not sure what impact it would have just on its own.

[PascalBuyens]

Definitely helps in letting the engine rev easier, and on top of it: less parts to break

[Targarama]

Why would a duplex chain be used in the first place? Probably for reliability/strength reasons? How much gain would be made, and is that a tradeoff vs a possible breakage?

(I'm no expert, my knowledge of this stuff comes from rebuilding Ford Crossflows 20 years ago.)

[nrick]

I would guess reliability, no other reason I can think of.