Cam choice for Towing/Torque
Cam choice for Towing/Torque I pulled the ls1 out of my race car and swapped it for the 5.3 in my truck. Im wanting a cam that is good for towing to put in the ls1. Tsp said there isn't a cam that would work, tick suggested the stage 1 torque max, and vinchi suggested a buttkicker cam. Each company had different ideas on what will and wont work. Any help from expericend haulers would be appreciated. The truck has a 6 in lift and 35s as well and 373 gears
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There are plenty of options!
I'd stay in the 21x-22x on the intake and just a touch bigger on the exhaust. Put the intake lobe on a 112 ICL and exhaust lobe between 113-114 centerline.
We did a 6.0L truck and a cam similar to that I mentioned above. That the guy tows a huge enclosed trailer with his race car all over the country. We did this thing something like 4 years ago. He loves it and is in fact about to add a turbo kit.
We will be glad to custom spec you a cam if your interested. I say there is a good bit of gains especially coming from the other guys experience.
I'd stay in the 21x-22x on the intake and just a touch bigger on the exhaust. Put the intake lobe on a 112 ICL and exhaust lobe between 113-114 centerline.
We did a 6.0L truck and a cam similar to that I mentioned above. That the guy tows a huge enclosed trailer with his race car all over the country. We did this thing something like 4 years ago. He loves it and is in fact about to add a turbo kit.
We will be glad to custom spec you a cam if your interested. I say there is a good bit of gains especially coming from the other guys experience.
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As the others have mentioned there are several great towing option available. The Comp XFI RPM would be a good towing cam due to the lower duration and LSA. There are similar cams from Crane, Howards and Lunati that would all make good power. To get the most torque you should pick a cam with @.050 duration between 206-218, and LSA close to 112-114. This will keep the power where it needs to be in a daily driven tow rig and provide quick throttle response.
54-408-11 would be ok but the 54-455-11 seems a little off for a truck. It has an rpm range of 1300-6500...I would think thats a little high.
I would recommend 54-451-11 but I dont have any real world experience with towing cams.
I would recommend 54-451-11 but I dont have any real world experience with towing cams.
Last edited by badassracing; May 8, 2013 at 03:42 PM.
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There are plenty of options!
I'd stay in the 21x-22x on the intake and just a touch bigger on the exhaust. Put the intake lobe on a 112 ICL and exhaust lobe between 113-114 centerline.
We did a 6.0L truck and a cam similar to that I mentioned above. That the guy tows a huge enclosed trailer with his race car all over the country. We did this thing something like 4 years ago. He loves it and is in fact about to add a turbo kit.
We will be glad to custom spec you a cam if your interested. I say there is a good bit of gains especially coming from the other guys experience.
I'd stay in the 21x-22x on the intake and just a touch bigger on the exhaust. Put the intake lobe on a 112 ICL and exhaust lobe between 113-114 centerline.
We did a 6.0L truck and a cam similar to that I mentioned above. That the guy tows a huge enclosed trailer with his race car all over the country. We did this thing something like 4 years ago. He loves it and is in fact about to add a turbo kit.
We will be glad to custom spec you a cam if your interested. I say there is a good bit of gains especially coming from the other guys experience.
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Brett Foote
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But his timing couldn't have been better! Summit Racing just released the newest additions to our Pro LS cams. One of these is the SUM-8712 stage one truck cam. It has 209/217 Duration,112 Lobe separation, and 1 degree advance. .500 lift, so you can run your factory springs. Intake closing is at 36 degrees after bdc (three more than an LQ9) to maintain compression and torque. Where the extra power comes from is opening the intake valve much earlier.
Last edited by Summitracing; Jul 11, 2018 at 08:19 AM.
On The Tree
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Call the cam companies and ask there opinions. There's more to making a good tow rig then a camshaft, everything needs to match the converter, gears, weight, transmission, , rpm range, etc: You need to take everything in as a unit before you decide on a cam
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It's interesting, I hadn't noticed before but Comp LSR torque cams seem to have an ICL of 107. I wonder if that's beneficial for low end. A lot of other manufactures seem to be around 109-110.
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Going off ICL only will give you wildly different results depending on duration. A better way of looking at it the individual timing events. We detail ours in this article. Our stage one truck cam closes at 36 abdc (111 c/l), the stage 2 closes at 39 degrees (110 c/l), the stage 3 closes at 38 abdc (107 c/l), and the biggest stage four closes at 41 (108 c/l). Intake Opening is opening earlier in roughly the same increments. If you want to learn a little more about it, this one focuses more on the theory. To the right of the tables requires scrolling, but you'll find the events there.
