Which of these Lunati Cams Will Work
#1
Which of these Lunati Cams Will Work
I was contacted by Lunati Cams, twice actually, and both guys suggested different cams. I'm not sure which one will be better suited for stock valvetrain, that's where I need some assistance. Here's the specs on the two Voodoo's:
Cam 1:
•Advertised Duration (Int/Exh): 256/262
•Duration @ .050 (Int/Exh): 213/219
•Gross Valve Lift (Int/Exh): .535/.540
•LSA/ICL: 112/108
•Valve Lash (Int/Exh): Hyd/Hyd
•RPM Range: 1000-5500
•Includes: Cam Kit
Cam 2:
•Advertised Duration (Int/Exh): 262/268
•Duration @ .050 (Int/Exh): 219/227
•Gross Valve Lift (Int/Exh): .540/.552
LSA/ICL: 112/108
•Valve Lash (Int/Exh): Hyd/Hyd
•RPM Range: 1400-5800
•Includes: Cam Only
Motor specs are:
460 with D3 heads, mild porting
Flattop pistons with 9.7 compression
Edelbrock Performer Intake with Holley 750cfm
Truck is an 80's F150 Stepside with solid front axle, estimated weight maybe 5500lbs? Used for some towing, some offroading, mostly crazy fun street driving.
Another option would be to call RM Competition for a custom grind for not much more than a Voodoo cam. I'm just looking for some suggestions from more experienced builders so I don't end up throwing mismatched parts together and not happy with the outcome.
Cam 1:
•Advertised Duration (Int/Exh): 256/262
•Duration @ .050 (Int/Exh): 213/219
•Gross Valve Lift (Int/Exh): .535/.540
•LSA/ICL: 112/108
•Valve Lash (Int/Exh): Hyd/Hyd
•RPM Range: 1000-5500
•Includes: Cam Kit
Cam 2:
•Advertised Duration (Int/Exh): 262/268
•Duration @ .050 (Int/Exh): 219/227
•Gross Valve Lift (Int/Exh): .540/.552
LSA/ICL: 112/108
•Valve Lash (Int/Exh): Hyd/Hyd
•RPM Range: 1400-5800
•Includes: Cam Only
Motor specs are:
460 with D3 heads, mild porting
Flattop pistons with 9.7 compression
Edelbrock Performer Intake with Holley 750cfm
Truck is an 80's F150 Stepside with solid front axle, estimated weight maybe 5500lbs? Used for some towing, some offroading, mostly crazy fun street driving.
Another option would be to call RM Competition for a custom grind for not much more than a Voodoo cam. I'm just looking for some suggestions from more experienced builders so I don't end up throwing mismatched parts together and not happy with the outcome.
#2
#3
IMHO, They are both prettry mild cams......hydraulics are much less suceptable to poor idle, etc as the duration & lift increases as compared to a solid lifter cam, these should both have nice idles, vacuume, etc.
I would definitely go with cam #2....the little bit of extra lift will help make the engine breathe which is what we are all going for anyway.....trucks are heavy and more lift, more torque. In regards to the power band.....the little more duration raises the start of the power band by 400.....starting at 1400 rpm.....chances are that will match the OEM or similar torque converter perfectly....if you run a tach, check it & I will bet the TC doesn't fully engage until around the 1400 rpm mark....so there will be no lag, loss of MPG, etc.
I would definitely go with cam #2....the little bit of extra lift will help make the engine breathe which is what we are all going for anyway.....trucks are heavy and more lift, more torque. In regards to the power band.....the little more duration raises the start of the power band by 400.....starting at 1400 rpm.....chances are that will match the OEM or similar torque converter perfectly....if you run a tach, check it & I will bet the TC doesn't fully engage until around the 1400 rpm mark....so there will be no lag, loss of MPG, etc.
#4
Option 2 is almost the identical cam that is going into my 460 build.
Here is the kit version at Summit
Lunati Voodoo Cam and Lifter Kits 10340702LK - SummitRacing.com
Here is the kit version at Summit
Lunati Voodoo Cam and Lifter Kits 10340702LK - SummitRacing.com
#5
looks to me like he had comp's xtreme energy in mind:
COMP Cams Xtreme Energy Cam and Lifter Kits CL34-238-4 - SummitRacing.com
UPC:036584080589
Cam Style:Hydraulic flat tappet
Basic Operating RPM Range:1,300-5,600
Intake Duration at 050 inch Lift:218
Exhaust Duration at 050 inch Lift:224
Duration at 050 inch Lift:218 int./224 exh.
Advertised Intake Duration:262
Advertised Exhaust Duration:270
Advertised Duration:262 int./270 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:0.513 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:0.520 in.
Valve Lift with Factory Rocker Arm Ratio:0.513 int./0.520 exh.
Lobe Separation (degrees):110
Grind Number:XE262H
i would think that with your higher compression and mild porting that either your second voodoo cam or the comp XE262H would fit the bill. but i'm a total cam rookie, so take that for what it's worth.
COMP Cams Xtreme Energy Cam and Lifter Kits CL34-238-4 - SummitRacing.com
UPC:036584080589
Cam Style:Hydraulic flat tappet
Basic Operating RPM Range:1,300-5,600
Intake Duration at 050 inch Lift:218
Exhaust Duration at 050 inch Lift:224
Duration at 050 inch Lift:218 int./224 exh.
Advertised Intake Duration:262
Advertised Exhaust Duration:270
Advertised Duration:262 int./270 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:0.513 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:0.520 in.
Valve Lift with Factory Rocker Arm Ratio:0.513 int./0.520 exh.
Lobe Separation (degrees):110
Grind Number:XE262H
i would think that with your higher compression and mild porting that either your second voodoo cam or the comp XE262H would fit the bill. but i'm a total cam rookie, so take that for what it's worth.
#6
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