Can somebody explain a cam for me?
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Supreme Member
iTrader: (8)
Joined: Jan 2000
Posts: 3,968
Likes: 1
From: Macedonia ,OH
Car: Formula
Engine: 6.0 LSX
Transmission: 4L60E
Axle/Gears: 9 Bolt 3:27
Can somebody explain a cam for me?
I dont know what the numbers mean or anything. Can somebody help me out? Thanks
Supreme Member
Joined: Jul 1999
Posts: 18,457
Likes: 16
From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
Wow... whole books have been written on that subject...
Go to Comp's site, they have alot of good general info tech pages about cams, rockers, etc. They cover it better than anybody is going to try to here, including me.
www.competitioncams.com
I think if you go through to the HTML format catalog and just look through the contents, you'll see what you're looking for.
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"So many Mustangs, so little time..."
Go to Comp's site, they have alot of good general info tech pages about cams, rockers, etc. They cover it better than anybody is going to try to here, including me.
www.competitioncams.com
I think if you go through to the HTML format catalog and just look through the contents, you'll see what you're looking for.
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"So many Mustangs, so little time..."
Supreme Member
Joined: Feb 2000
Posts: 1,196
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From: Fort Collins, Colorado
Its simply a shaft that has various lobes on it and it spins at twice the speed of the crank shaft and operates all 16 vavles. The duration, is how long the cam holds the vavles open for, in degrees of crankshaft rotation. And the lift is how much lift the cam opens the valves, it is then multiplied by the rocker arms (1.5, 1.6, ect).
The reason we buy new (usually larger) cams for our cars is because a larger cam will open the valves further and keep them open longer, thus improving your engine's breathing ability.
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1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission with 2.77:1 Rear End
Current Mods: LT4 Hot Cam, Edelbrock TES 1 5/8" Headers, Hooker 3" Aerochamber Cat-Back System, Performance Resource Chip with 160* Thermostat, Accel Ignition Coil, Cap, Rotor, 8.8mm Wires, K&N Filters, JET TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.
Best ET (w/o LT4 cam): 14.32 @ 97.7mph
(corrected for elevation)
The reason we buy new (usually larger) cams for our cars is because a larger cam will open the valves further and keep them open longer, thus improving your engine's breathing ability.
------------------
1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission with 2.77:1 Rear End
Current Mods: LT4 Hot Cam, Edelbrock TES 1 5/8" Headers, Hooker 3" Aerochamber Cat-Back System, Performance Resource Chip with 160* Thermostat, Accel Ignition Coil, Cap, Rotor, 8.8mm Wires, K&N Filters, JET TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.
Best ET (w/o LT4 cam): 14.32 @ 97.7mph
(corrected for elevation)
Supreme Member
Joined: Feb 2000
Posts: 1,416
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From: Johnstown, Ohio
Car: 84 Z28
Engine: 355 (fastburn heads, LT4 HOT cam)
Transmission: 700R4
Axle/Gears: 9-bolt, 3.27
Sorry Dan, but the cam turns at half the speed of the crank! I just don't want anyone to be misinformed!
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Working on:
'84 Z28 LG4 305
Added dual elec fans.
145 MPH IROC Speedo
Building 430 HP 350
using primarily GMPP parts.
Block is in shop!
ASE Certified Master Tech
Starting to look like the Kicker poster child!
------------------
Working on:
'84 Z28 LG4 305
Added dual elec fans.
145 MPH IROC Speedo
Building 430 HP 350
using primarily GMPP parts.
Block is in shop!
ASE Certified Master Tech
Starting to look like the Kicker poster child!
TGO Supporter
Joined: Aug 1999
Posts: 14,811
Likes: 1
From: Jackson County
to expand a little on what rb said lunati's catalog has a great tech section in it too, it'll cost you a few bucks but it's worth it. it'd be a lot better for you to get your information from a cam grinder than anyone here. it's way to easy to leave something out.
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ICON Motorsports
1st & 3rd
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ICON Motorsports
1st & 3rd
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