6.0 Cam Questions
11-05-2011, 05:39 PM
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6.0 Cam Questions
Picking up a lq4 next week to replace my 4.8. My question is my 4.8 has a 212/216 cam from texas speed and I was considering putting it in the 6.0 or should I just sell the current cam and go to something bigger? If so what would you guys think I should go with I was looking at the 228R but this is a truck and I'm used to the ls cars. Truck is a 5 speed also
11-05-2011, 07:13 PM
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That will be a real low end pulling type cam in the 6.0. Before I decided to go fi I was gonna go with that very 228r cam from Texas speed. I think it would be a good one. But only if you have gears and a 3-3200 range stall.
11-05-2011, 08:32 PM
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Thats what I figured. The cam works great in the 4.8 but Id like it to have a little sound to it and I think my 212 would sound stock in a 6.0 lol
11-05-2011, 08:37 PM
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If you are planning on sticking with the stock compression ratio of that LQ4 which is only like 9.4-9.5:1 you won't be very happy with that 228R cam. Your DCR would be low and the motor would be kind of "soggy". Even in a lighter car it still would not be good.
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11-05-2011, 10:45 PM
#8
I would have to say definitely...8* more intake duration will have a direct effect on overlap and airflow, as well as moving the powerband up higher. Corey (BlackGMC) is currently running a Comp XER 220/224 .58x/.58x 115+5 and he loves the powerband...says that it basically makes power everywhere and pulls to about 6300 IIRC. He's running a 3200 converter, but I'm pretty sure that something with a stall speed as low as 2800 would still work too...although the 3200 is definitely more fun 
I've been considering something very similar for my LQ9 if I can ever afford it...220/224 114+4. If I could afford a new intake and exhaust mods (bigger stuff everywhere, especially in place of my current 2.5" collectors), as well as a restall to my Circle-D 258mm multi, I'd probably, most definitely go with a 224/228 .58x/.59x 112+4, but I'd rather have everything matched as well as possible, and swap cams again if I could get more air in/out via intake/exhaust 
I'm planning between 10.5:1 to 10.8:1 static compression for mine...probably closer to the 11:1 to allow for more room to grow on the camshaft...
I've been considering something very similar for my LQ9 if I can ever afford it...220/224 114+4. If I could afford a new intake and exhaust mods (bigger stuff everywhere, especially in place of my current 2.5" collectors), as well as a restall to my Circle-D 258mm multi, I'd probably, most definitely go with a 224/228 .58x/.59x 112+4, but I'd rather have everything matched as well as possible, and swap cams again if I could get more air in/out via intake/exhaust I'm planning between 10.5:1 to 10.8:1 static compression for mine...probably closer to the 11:1 to allow for more room to grow on the camshaft...
11-05-2011, 10:52 PM
#9
As mentioned in the article, a 7.5:1 to 8.5:1 DCR is optimal when using 91 octane gas...