Does your Futral Cam clatter like a sewing machine?
My F11 has the SM noise but is noticable mostly on a off throttle coast in gear at 2K-3K.Very slight at idle. I have stock heads/TI retainers/ and 918's. Also have HS rockers. They made abosutely no difference as far as the noise. But it makes great #'s and runs great.
Originally Posted by AFTICA
OK We have 4 sewing machines, 2 that are quiet and 1 *******?? 
so far.
so far.
And for the record my 244/248 .635/.627 sounds pretty noisy. But hey, what do you expect with lift like that.
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From: BFE
Originally Posted by AFTICA
So, using .025 longer pushrods helps. Does that mean the base circle of the Futral cams is .050 smaller?
So far it looks like we're at 8 sewing machines, 3 quiet, 3 blowers and 1 tittie lol
So far it looks like we're at 8 sewing machines, 3 quiet, 3 blowers and 1 tittie
lolFutral are Cam Motion.
In general the higher the lift, the smaller the base circle.
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I've tried a number of different cam/pushrod/rocker/lifter combinations and even replaced my shortblock. What I haven't changed is my springs and heads. I'd like to know what heads, springs, and lifters people are using. I think it lies in there somewhere. Is anyone using Morel lifters and getting noise?
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From: W.P.B. Florida
Originally Posted by dug
What length pushrods are you supposed to use on a stock motor? I am running the stock push rods and its noisy as hell.
PREDATOR-Z ...It makes sense that the longer PR would quiet things down by bringing preload back where it should be.Where did you get your 7.425 PR's and about how much $ were they?
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From: BFE
Thunder Racing- From Comp Cams
http://www.thunderracing.com/catalog...vid=3&pcid=106
I had to wait a little while for them. Around 3 weeks.
http://www.thunderracing.com/catalog...vid=3&pcid=106
I had to wait a little while for them. Around 3 weeks.
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From: NE PA
Originally Posted by Byter
I've tried a number of different cam/pushrod/rocker/lifter combinations and even replaced my shortblock. What I haven't changed is my springs and heads. I'd like to know what heads, springs, and lifters people are using. I think it lies in there somewhere. Is anyone using Morel lifters and getting noise?
2. Crane dual valve springs
3. Stock lifters
Why are you worried about valvetrain noise with that stereo system?! Crank it up till the noise goes away!
All three cams, Comp 224 on XER lobes, F11, and F13 all sound about the same. It sounds like the sewing machine effect. I had TEA's 5.7's milled .030 for the 224 and F11. Patriot Performance "LS6 Style" for the F11 and F13. All sounded about the same. Now when I had the Fast 78mm it was a lot more noticable.
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From: W.P.B. Florida
Originally Posted by PREDATOR-Z
Thunder Racing- From Comp Cams
http://www.thunderracing.com/catalog...vid=3&pcid=106
I had to wait a little while for them. Around 3 weeks.
http://www.thunderracing.com/catalog...vid=3&pcid=106
I had to wait a little while for them. Around 3 weeks.
Originally Posted by XTrooper
1. Rapid Motorsports Stage II LS1 heads
2. Crane dual valve springs
3. Stock lifters
Why are you worried about valvetrain noise with that stereo system?! Crank it up till the noise goes away!
2. Crane dual valve springs
3. Stock lifters
Why are you worried about valvetrain noise with that stereo system?! Crank it up till the noise goes away!
But, I had a respected tuner tell me this and it seems that most people who say their valvetrain is "relatively" quiet are using the stock lifters or Morel lifters as opposed to the Comp 850's or R's. This tuner complained about that the Comp lifters bleed down too much. Man, I'd hate to pull the heads again... 
"Is anyone using Morel lifters and getting noise?"
Yes, I am. However my current preload is .075 and should be at .030. Running a 7.350 PR, 227/231 cam stock base circle ( 1.55 ) and AFR 205's milled .018.
Winter project.
Also FWIW, when I had Crane 1.8's on it was DEAD silent.
So it can be made silent; get the preload correct.
Yes, I am. However my current preload is .075 and should be at .030. Running a 7.350 PR, 227/231 cam stock base circle ( 1.55 ) and AFR 205's milled .018.
Winter project.
Also FWIW, when I had Crane 1.8's on it was DEAD silent.
So it can be made silent; get the preload correct.
