IHADAV8.com - Turbo Buick Tech, and Nonsense
Tech Area => General Buick Tech => Topic started by: Shimy87 on December 07 2015, 09:02:48 PM
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Got some money I can put into car!! :icon_lol: So what I want to do is upgrade and quiet down the valvetrain. I have owned many Gm 3800's and they all have been such quiet motors. I want this one to be the same. With my new convertor it has made a noisy motor even worse. What is a good combo of cam and rockers that will make good power and also be QUIET. As always, thanks for any help
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Swap in a 3800. Seriously.
I am thinking of putting a LFX in my MCSS with a turbo. ;)
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Not that much to spend :O
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Mike at FT sells the complete roller cam kit. You have a choice between HS and TA rockers...stay with the 1.55 ratio.
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Call up Cam Motion and see if Kip can grind you a cam with modern smooth ramp rate lobes. The LS world is moving toward civil valvetrain characteristic s to beat the sewing machine noise produced by older lobe designs.
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I am running Full throttles full roller kit and Harland sharp rockers. The whole thing is quiet, as for a converter call dusty @ 256-303-5387 you cannot go wrong. if your in need of head gaskets or intake gaskets let me know I have everything in stock fairly cheap or trade for some goodies. What turbo and injectors are you runnin? I have a set of 60# ones for sale.
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I am running Full throttles full roller kit and Harland sharp rockers. The whole thing is quiet, as for a converter call dusty @ 256-303-5387 you cannot go wrong. if your in need of head gaskets or intake gaskets let me know I have everything in stock fairly cheap or trade for some goodies. What turbo and injectors are you runnin? I have a set of 60# ones for sale.
What size is your cam? And when you say quiet, do you mean a faint tick? Also, what is your pre-load set at? Mine is 0.035 and it is fairly noticiable but I do have the more noisy comp lifters.
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I always thought it was the link bars that was part of the noise you hear.
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Ya quiet is the priority for me! I have a new silverado and its noisier than the good ol 3800's. Probably the water thin oil they want ya to run......hate a "ticky" motor....sound s junky to me
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My buddy's car has a flat tappet cam its quiet
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The forged slugs tend to slap around when cold.......... nature of the beast
Ya quiet is the priority for me! I have a new silverado and its noisier than the good ol 3800's. Probably the water thin oil they want ya to run......hate a "ticky" motor....sound s junky to me
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There was a thread on the other board where guys have used the series ll lifters and dog bone retainers to eliminate the need for the link bar lifters.
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Looks like a full roller setup runs about $1600. Question is will it be ticky? Interested in this series II thread? They are a very quiet motor. Any specific info on the parts for that switch....if its possible?
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This was just posted.
http://www.turbobuick.com/forums/threads/parting-engine-3-roller-cam-with-lifters-timing-cover.435097/#post-3617108 (http://www.turbobuick.com/forums/threads/parting-engine-3-roller-cam-with-lifters-timing-cover.435097/#post-3617108)
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This was just posted.
http://www.turbobuick.com/forums/threads/parting-engine-3-roller-cam-with-lifters-timing-cover.435097/#post-3617108 (http://www.turbobuick.com/forums/threads/parting-engine-3-roller-cam-with-lifters-timing-cover.435097/#post-3617108)
You and I need to talk to Bison about grinding a cam for these engines we're building. :) I'm calling him over the holidays. :powersix:
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My LS1 valve train sounds like I have dwarfs hitting the valves with a hammer. It's a older style cam with lobes that are "square".
Like Mike mentioned - there have been tons of advancements in cam lobe profiles over the last few years. The newer stuff is quieter than the old stuff and easier on the valve train in general.
It's all a trade off. Set it up properly and you should be good.
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This was just posted.
http://www.turbobuick.com/forums/threads/parting-engine-3-roller-cam-with-lifters-timing-cover.435097/#post-3617108 (http://www.turbobuick.com/forums/threads/parting-engine-3-roller-cam-with-lifters-timing-cover.435097/#post-3617108)
You and I need to talk to Bison about grinding a cam for these engines we're building. :) I'm calling him over the holidays. :powersix:
That's not a bad idea but I already have a cam picked,bought and installed for this build. It's a custom grind. If you want I can send you the spec sheet
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My LS1 valve train sounds like I have dwarfs hitting the valves with a hammer. It's a older style cam with lobes that are "square".
Like Mike mentioned - there have been tons of advancements in cam lobe profiles over the last few years. The newer stuff is quieter than the old stuff and easier on the valve train in general.
It's all a trade off. Set it up properly and you should be good.
Not to mention the quality of cam cores... Here is a comparison video https://www.youtube.com/watch?v=LPW61HKzw5U (https://www.youtube.com/watch?v=LPW61HKzw5U) I made between a custom Comp cam made a few years ago for our LS1 wagon vs. The factory LS9 cam I shoved in my TBSS's LS2. If you look closely you can see the horizontal lines across the Comp's lobes which would have lead to horrible valvetrain whine - like a noisey Pete Jackson gear drive timing set. Anyway I had Comp polish the lobes, it is marginally acceptable now. The quality of the GM is a night and day improvement. You will see the same from Cam Motion - don't buy Comp. Period.