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Cam help!!! For sts turbo kit

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Old 03-26-2012, 05:30 PM
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Default Cam help!!! For sts turbo kit

We recently just installed our new sts inter-cooled kit on the 5.3L silverado

The truck is a dog till around 2500rpms

It has a new transmission with a 2000 stall and all stock internals on 5psi

Is there a cam that would make this thing a tq monster between 1000-2500 rpms?

Whats better for the 5.3L rear mount set up
A single pattern cam or a larger intake duration than exhaust?

Is a 114 lobe fine or does it need to be 115-116 lobe?

The truck is a weekend toy not an all out wanna be dragster in regard to the cam choice.
Old 03-26-2012, 06:51 PM
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what are the turbo specs?
Old 03-26-2012, 08:27 PM
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GT67 turbo
38mm waste gate
50mm blow off valve

Long tube headers, x pipe, 3" true duals, dual 3" collector with 2.5" single exit connecting to the turbo exhaust tubing

WILL GET A DYNO TUNE FOR THE CAM!!!
Old 03-26-2012, 09:07 PM
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Contact stock48 he has beast cams.
Old 03-26-2012, 09:41 PM
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Get a bigger stall. That turbo should spool almost instantly
Old 03-30-2012, 02:17 PM
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should of got a smaller turbo and stuck it up front. sts lags, and a 67 on 5psi is way too big. a 60mm will make 12-14psi on astock 5.3
Old 03-30-2012, 04:00 PM
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Your losing power with the long tube header's u need to use stock manifolds for the sts kit. I have the same setup 5.3 gt67 on 6lbs and mine spools up quick with hardly any lag. But i'm using the stock manifolds cats and y pipe. Idk if your exhaust setup might have anything to do with it.
Old 03-30-2012, 04:43 PM
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get the boost up around 10psi and run something like the isky 212 or 215 cam..
should have gone with a 3000 stall, the STS on a stock converter sucks bad..
i ran a yank tt3000 and it was perfect but i had a 60mm.

i ran the isky 215/215 .566/.566 114 and it was nice.

also working the tune in the lower rpms high load makes a big difference.
Old 04-07-2012, 01:18 AM
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Definitely get a bigger stall go with a 22x/23x .56x/.56x 113 - 114
Old 04-07-2012, 02:59 AM
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Originally Posted by $nake Charmer
Definitely get a bigger stall go with a 22x/23x .56x/.56x 113 - 114
Considering the fact that he is looking for low end Tq that cam would not be a good choice for a 5.3L


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