Camshaft
Fleet Mechanic
Joined: Sep 2013
Posts: 1,504
Likes: 8
From: Indian Falls, New York
Mine fast idle is around 1000 or so maybe a bit more. Normal idle is about 750-800 and in drive drops down to 500 or so, possibly even lower. Considerably and Very low. Like there is a good gap between lopes. Runs great. Torque converter is stock, tach works fine. Want to say my torque peaks at 1,800-2,200.
Logistics Pro
Joined: Sep 2011
Posts: 4,491
Likes: 26
From: Algona,WA
Hot idle in park on mine is about 800. In gear is about 525. I don't remember what my emissions tag says. I remember I set it to that and it tries to over power the brakes, especially with what the engine is now and how it's setup. Tach works fine, stock converter.
Fleet Mechanic
Joined: Sep 2013
Posts: 1,504
Likes: 8
From: Indian Falls, New York
Judging on what I just saw, mine sort of sits like this:
Park: Automatic High Idle: 1100-1200, tap the gas, drops to low idle 750-800
In Gear: Moving from park in low idle to in gear drops it from 800 to 450-500.
In Gear Fast Idle: Drops to 450-500 mid paced, not fast drop but gradual and revs come up as I hit the gas. Idle speeds change as needed
Park in fast idle to in gear: See above
Logistics Pro
Joined: Sep 2011
Posts: 4,491
Likes: 26
From: Algona,WA
My cold start high idle is 1500 RPM lol.
Fleet Mechanic
Joined: Sep 2013
Posts: 1,504
Likes: 8
From: Indian Falls, New York
Mine is somewhere in that ballpark. Its very very fast. The video is on YouTube tho I may have shown you it already. I showed someone on here.
Here's the video. Ignore the crappy recording I was testing to see how well my iPod could capture sound. Tried not to rip up the yard so he went easy on it. Started spinning then the other side kicked in and it was smooth sailing. You can see it kick in too, the side spinning slips just a hair if you pay attention then click and it moves. This was the first start in 4-5 months as well. Surprised it took so long, usually fires right up with hardly any cranking. Motor has 50k on it since built. Believe it or not it has cats an mufflers and is still that loud.
The first 3 minutes are the action. The rest it literally sits there idling. Boring. I took this is last summer.
Someone want to tell me what that whistle sound is when he parks it in the driveway and taps the as so it hits normal idle? Happened at 2 minutes in. Trucks always done it. Lacks no power. Also language warning from my dad.
Here's the video. Ignore the crappy recording I was testing to see how well my iPod could capture sound. Tried not to rip up the yard so he went easy on it. Started spinning then the other side kicked in and it was smooth sailing. You can see it kick in too, the side spinning slips just a hair if you pay attention then click and it moves. This was the first start in 4-5 months as well. Surprised it took so long, usually fires right up with hardly any cranking. Motor has 50k on it since built. Believe it or not it has cats an mufflers and is still that loud.
The first 3 minutes are the action. The rest it literally sits there idling. Boring. I took this is last summer.
Someone want to tell me what that whistle sound is when he parks it in the driveway and taps the as so it hits normal idle? Happened at 2 minutes in. Trucks always done it. Lacks no power. Also language warning from my dad.
Fleet Mechanic
Joined: Sep 2013
Posts: 1,504
Likes: 8
From: Indian Falls, New York
The whistle at 2 minutes I find strange. Only seen it happen on YouTube a few times. Always done it. Never had anything wrong with it. I figured it was probably the way the air was being sucked through the carb, making it whistle.
Logistics Pro
Joined: Sep 2011
Posts: 4,491
Likes: 26
From: Algona,WA
The noise at startup is the power steering. I was low on fluid after a mouse chewed a hole in one of the rubber hoses on it. There's some wet spots on the driveway right underneath it. We move it those months before and lost power steering, pulled the cap and it was empty. My friend thought it was a supercharger lol.
The whistle at 2 minutes I find strange. Only seen it happen on YouTube a few times. Always done it. Never had anything wrong with it. I figured it was probably the way the air was being sucked through the carb, making it whistle.
The whistle at 2 minutes I find strange. Only seen it happen on YouTube a few times. Always done it. Never had anything wrong with it. I figured it was probably the way the air was being sucked through the carb, making it whistle.
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Fleet Mechanic
Joined: Sep 2013
Posts: 1,504
Likes: 8
From: Indian Falls, New York
I know the drivetrain is fine. The C6 was rebuilt not more than a year or 2 before we took it off the rode in 2007. Transfer case looks brand new, torque converter is fine etc etc.
You got any videos of yours doing it?
Thread Starter
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Senior User
Joined: Dec 2012
Posts: 161
Likes: 0
From: Laramie,Wy
These are the lifters I am looking at but after looking throw my chilton I can't find the size for my truck, should these work. Thanks for the help.
Brand:Sealed Power
Manufacturer's Part Number:HT900
Part Type:Lifters
Product Line:Sealed Power Hydraulic Lifters
Summit Racing Part Number:SLP-HT900
Lifter Style:Hydraulic flat tappet
Lifter Link Bars Included:No
Link Bar:None
Lifter Outside Diameter (in):0.874 in.
Lifter Offset:None
Quantity:Sold individually.
Brand:Sealed Power
Manufacturer's Part Number:HT900
Part Type:Lifters
Product Line:Sealed Power Hydraulic Lifters
Summit Racing Part Number:SLP-HT900
Lifter Style:Hydraulic flat tappet
Lifter Link Bars Included:No
Link Bar:None
Lifter Outside Diameter (in):0.874 in.
Lifter Offset:None
Quantity:Sold individually.
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 38
From: EXTREME southwest CT
If you're buying the Summit cam why not just buy their kit that comes with lifters?
http://www.summitracing.com/parts/sum-k3500
http://www.summitracing.com/parts/sum-k3500
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
If you're buying the Summit cam why not just buy their kit that comes with lifters?
http://www.summitracing.com/parts/sum-k3500
http://www.summitracing.com/parts/sum-k3500
But you do know that you need a strong dose of break-in lube on the cam & lifters as well as in the oil to break in a cam - right? And the cam manufacturers recommend that you use an oil with high ZDDP forever after.
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 38
From: EXTREME southwest CT
The stock springs are not -that- high pressure.
Reduced ZDDP in current SM rated oils may have an effect at cold startup.
I use a filter with an effective anti-drain back valve and cheap Rotella diesel oil.
That 3500 cam seems fine. (though I am growing tired of it)
Reduced ZDDP in current SM rated oils may have an effect at cold startup.
I use a filter with an effective anti-drain back valve and cheap Rotella diesel oil.
That 3500 cam seems fine. (though I am growing tired of it)