Comp Cams Thumpr vs Ford Racing Performance Parts Hot Rod Cam

Old school / new school

Use to drag race mopars in the late sixties/early seventies. I fell in love with the S197 and bought a new 2008 GT. Been trying to catch up on the new technology. I want my stang to sound like my old muscle cars. I have been researching the Thumpr and 3V Hot Rod Cams. The stock cam in my 4.6 has a 60 degree VCT (variable cam timing) phase limiter which allows the cam to give you power pretty much throughout the entire RPM range. The cam advances in the low end and retards in the high end. Back in the old days you had to choose a cam that made power either in the low end or mid to high. You could not have both ways. But with VCT you can. With that said, the Thumpr cam requires a 20 degree VCT limiter to eliminate piston to valve interference. The Ford Hot Rod Cam uses the 60 deg stock limiter. Does the Comp Cam Thumpr limit power to mid to high because of the 20 degree limitation? Does anybody out there with a 4.6 3V have any experience with either cam? Here are the specs at .050 duration:
FORD (uses stock 60 deg phase limiter)
Intake 221
Exhaust 240
Lobe seperation 110 degrees
Lift .47 inches (12 mm) 11 mm is the stock lift
COMP CAMS (requires 20 deg phase limiter)
Intake 226
Exhaust 246
Lobe seperation 109 degrees
Lift .45 inches  

I have been looking into the same ideas. So far I have found it to be one's belief that the Ford Racing Cams are the better ticket. No valve spring upgrade reqiured. Comp cams do require these upgrades. On the dyno, I hear 30 HP is the norm. The guys at "The Mustang Shop" near Seattle know quit a bit about these, if you are interested. Talk to Andy or Scottie @ 253-218-0323 10AM -6PM pacific time or themustangshop.com
Hope they can help, Dennis  

Thanks Dennis,

I will contact either Dennis or Scotty

Jacque  

I have been running the FRPP Hot Rod Cams now for some time and love them.  This is the second Foose Stallion that I have had them in.  They are a little tricky to get the tune just right for the idle, but they do give you that awesome old school sound.  You can run them without a tune but will not see any performance gains.  You do not install limiters or springs with these cams.

Here are a couple of clips from both of my Foose Stallion stangs.
2007 Foose #64 - N/A with Hot Rod Cams: http://www.youtube.com/watch?v=IsDF_xIOgbE

2007 Foose #41 - FRPP Whipple and Hot Rod Cams: http://www.youtube.com/watch?v=TvZgx_fxQuw  
2007 Foose Stallion
FRPP Polished Whipple SC - 8lb boost, FRPP Hot Rod Cams (M-6550-3V), FRPP Ceramic Coated Shorty Headers, FRPP Tuned Racing Suspension, FRPP Tuned Racing Exhaust, FRPP Axle Back, Steeda TriAx, Nexus Series - AFM, Vac/Boost, Fuel Pressure, Speed of Sound Dash Pod, Raptor Blue LED Shift Light, plus a lot more. 425 RWHP 387 TQ

Not sure the link posted correctly.

2007 Foose Stallion, #41 FRPP Whipple and Hot Rod Cams - http://www.youtube.com/watch?v=TvZgx_fxQuw.

2007 Foose Stallion, #64 N/A with Hot Rod Cams - http://www.youtube.com/watch?v=IsDF_xIOgbE  
2007 Foose Stallion
FRPP Polished Whipple SC - 8lb boost, FRPP Hot Rod Cams (M-6550-3V), FRPP Ceramic Coated Shorty Headers, FRPP Tuned Racing Suspension, FRPP Tuned Racing Exhaust, FRPP Axle Back, Steeda TriAx, Nexus Series - AFM, Vac/Boost, Fuel Pressure, Speed of Sound Dash Pod, Raptor Blue LED Shift Light, plus a lot more. 425 RWHP 387 TQ

Thanks for the info... Did you install the cams yourself? Does Ford Racing offer a tune for these cams or do I need to take it to a dyno? Before I install the cams, I plan on long tube headers w/ catted X pipe and straight pipe all the way back. The cams will be next, followed by a blower.