INTERNAL ENGINE MODIFICATIONS Valvetrain |Heads | Strokers | Design | Assembly

What is considered to big of a cam for 5.3L?

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Old Oct 9, 2013 | 10:50 AM
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With a 5.3, you don't have enough torque to begin with to be able to afford to lose any. Been there, done that...sold the truck.

TSP 220R @ 112 LSA / .581" - Warm Idle - 5.3L - NNBS - Silverado - YouTube
220R on a 112 still has a noticeable idle. We could always split the duration a bit for a little more chop if that's what you really want.

- Beau @ TSP
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Old Oct 9, 2013 | 11:23 AM
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Originally Posted by 69Camaro427
I really want the 228/228 on 112lsa sounds amazing in the 5.3L, but I know bigger is not better for small cubes. Man are there a lot of proven set ups with the 220/220 yall were not kidding. The 228 makes like 10 more hp than the 220 right?

I am liking the 3K stall y'all suggested, I can live with 2,000 rpms to get to 30-45mph.

Being that I have a light 2wd single cab I could afford to lose a little low end tq. Thinking about milling the heads 0.03 and throwing some 0.04 cosmetic gaskets on the truck bump compression to 10.3:1. Would a .8 compression jump help retain some low end?
I have the 228r currently in my ride you will lose bottom end but gain a lot up top. I don't have other cams to compare it to as this my first but im thinking I should have gone smaller. Its just a turd off the line with a 3000 stall but nothing a little nitrous wont take care of.
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Old Oct 9, 2013 | 04:46 PM
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Mine is 218/224@.050 but on a 110LSA, it really doesn't hit the powerband hard till about 3600. Widening the LSA out to 112 would help the down low, just not make quite as much peak power. The more compression you can get away with, the less loss of low end you will have. It will squeeze what air makes it in harder so not near as big if a loss.
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Old Oct 9, 2013 | 06:29 PM
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That 220 sounds pretty F***** awesome too haha

I like a smooth powerful chop not a rattle can ping and ting. Your web site says that cam's power band is from 1200-6200 what rpms does the tq shift to on a stock heads, bolton set up from your experiences?

What effects does different Lsa have. The lower the # more midrange, the higher more topend-low end but lacking in midrange?

Thanks for the help guys really appreciate it by the way
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Old Oct 9, 2013 | 06:31 PM
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99s10sb and whitecrewcab yall just talked me out of the 228 and 224 lol
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Old Oct 9, 2013 | 07:15 PM
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06 Silverado with a custom cam - YouTube

Here's mine.
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Old Oct 9, 2013 | 07:22 PM
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The tighter the LSA, lower number, the more midrange and peak numbers, but it closes up the rpm range. The lower the LSA, the more it chops at idle too. The wider the LSA, spreads the powerband out but with lower peak numbers and settles the idle down.
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Old Oct 9, 2013 | 09:37 PM
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I have a isky 224/227 112 lsa that I would trade you for that triple 12 cam
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Old Oct 10, 2013 | 09:39 AM
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Originally Posted by 69Camaro427
That 220 sounds pretty F***** awesome too haha

I like a smooth powerful chop not a rattle can ping and ting. Your web site says that cam's power band is from 1200-6200 what rpms does the tq shift to on a stock heads, bolton set up from your experiences?

What effects does different Lsa have. The lower the # more midrange, the higher more topend-low end but lacking in midrange?

Thanks for the help guys really appreciate it by the way
A tighter LSA (111) will narrow the powerband, increase low end torque and give more chop at idle. Wider LSAs (115) give a broader powerband, move torque up in the RPM range and give a smoother idle. Now, obviously more goes into powerband and idle quality than just the LSA. Also, LSA does more than just these two things. Here is a nice reference chart from Comp about cam timing and LSA. Technical Specs & Information

- Beau @ TSP
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Old Jun 11, 2018 | 04:18 PM
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Originally Posted by dirt track racer 81
Tuning is a major key when running low stall with a big cam. I ran a 244/248 cam with a stock 60e converter for almost 2 years I had no drive ability issues at all
did you have any problems with braking? I have a 230/238 cam and my brakes have no pressure
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