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torque cam

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Old Mar 14, 2013 | 08:52 PM
  #11  
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I tow, dd and wheel with my 3200 with no problems
I will also be doing the same with my 3600, see how it does
get a good cooler
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Old Sep 23, 2013 | 05:47 PM
  #12  
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Originally Posted by mcfarlnd
Why low lift? Why not something with low duration and higher lift?
higher intake velocity is torque friendly
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Old Sep 23, 2013 | 07:51 PM
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Originally Posted by spent21
higher intake velocity is torque friendly
Yep. But a low lift with 1.8 ratio rockers get the velocity up faster. I run this combo and it is awesome.
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Old Sep 24, 2013 | 08:08 AM
  #14  
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Originally Posted by Duntov1967
Yep. But a low lift with 1.8 ratio rockers get the velocity up faster. ...
I don't see how you come to that conclusion, in fact, I don't think we're even talking about the same thing.

If you change the rocker ratio, you affectively change the lift rate as well as the max lift of the valve.

All you've really done is amplify the profile of the cam, and if you're doing it with a cam that is designed for 1.7 rockers, then you're undermining the original design for which it was intended.

If anyone worth their salt specs a cam, they can use the more aggressive cam lobes AND spec the appropriate lift without having to address the rockers.
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Old Feb 10, 2014 | 12:41 PM
  #15  
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I have a 2006 Silverado with a 6.0 . Its a 4wheel drive and I have a procharger D1-sc , kooks long tube 1 7\8 headers and a holley efi intake with a 102 throttle body . It has stock heads on it , just looking for a good towing and street \ strip cam .please any help would be nice .
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Old Jul 18, 2016 | 01:38 PM
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Which can did u get?
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Old Dec 23, 2017 | 10:58 PM
  #17  
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Originally Posted by spent21
I don't see how you come to that conclusion, in fact, I don't think we're even talking about the same thing.

If you change the rocker ratio, you affectively change the lift rate as well as the max lift of the valve.

All you've really done is amplify the profile of the cam, and if you're doing it with a cam that is designed for 1.7 rockers, then you're undermining the original design for which it was intended.

If anyone worth their salt specs a cam, they can use the more aggressive cam lobes AND spec the appropriate lift without having to address the rockers.
Sorry for the late reply but I haven't visited this thread in years. This graph shows how a higher ratio rocker will give you lift quicker. Notice the degrees at .400". This was spec'd by Roger Vinci and that is about as pro as you can get for truck performance torque cams.



Last edited by Duntov1967; Dec 23, 2017 at 11:03 PM.
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Old Dec 25, 2017 | 11:54 AM
  #18  
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The stg2 truck high lift from tsp will make more power than the low lift. they have dynos of each. high lift gives up nothing and extends the power band by 200 rpm. Cut it on a 111 and have fun.
We sell that combo also. $570 for cam springs and prs.
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Old Dec 25, 2017 | 11:56 AM
  #19  
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And that rocker ratio table is from 1.52 to 1.7 which is nearly .2 (2 tenths) of an inch more so not a direct comparison to an ls either.
The gains are ok, but why do that when you can get a cam with better @200+ duration that a heavier and higher ratio rocker would have issues controlling?
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Old Dec 25, 2017 | 01:32 PM
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Tsp stage 1 truck cam or a btr stage 1 truck cam will work great in a 4.8 for low end. Also cam motion has some great drop in cams that gain off idle. I have a lq4 6.0 with a btr stage 2 and ported 799 heads and it's a torque monster
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