Timing chain questions!!!
Seems a lot of people have had slack in their stock chains - https://ls1tech.com/forums/generation-iii-internal-engine/325345-so-i-guess-ls1-s-run-lot-slack-timing-chain.html
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Unless you get enough slack to cause a mechanical failure, the only thing I could see it do is retard yoru cam timing. This will result in moving your power band upwards in the rpm range. While it may lose a little low end since it moves max torque upwards, if anything it may increase top end HP. Atleast to a certain point until it stretches too far.
The effect of slack is an interesting consideration. I guess it would make for a slight variation in valve timing, but would it only be in the retard direction? I would think that on deceleration the crank would cause the cam to decelerate. Would this move the slack to the other side of the timing gears and cause slight advance?
I wonder if it really makes a significant difference.
I wonder if it really makes a significant difference.
Originally Posted by ShevrolayZ28
The effect of slack is an interesting consideration. I guess it would make for a slight variation in valve timing, but would it only be in the retard direction? I would think that on deceleration the crank would cause the cam to decelerate. Would this move the slack to the other side of the timing gears and cause slight advance?
I wonder if it really makes a significant difference.
I wonder if it really makes a significant difference.
Originally Posted by GuitsBoy
During deceleration, the drivetrain is still turning the crank and not the camshaft. Yes, the cam has inertia, but I think overcoming the valvesprings might be enough to keep the inertia from spinning faster than the crank... Although, im basing this soley on my imagination of the way things work...
Someone needs to build a transparent motor so I can see exactly what the heck goes on in there.
But I think I understand what your saying.
Acceleration of car: the crank accelerates the drive train and the cam.
Deceleration of car: the drive train deceleratres the the crank but the crank still accelerates the cam. (In other words, the cam is not applying a force to the crank in a dircection so as to reduce crank rpm.)
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From: Houston/Denton
Originally Posted by slow trap
maybe slight timing differences but i don't think it would be enough for misfires.are you running a colder plug like the tr6 ?
