NBS Silverado build part 2
08-03-2017, 12:25 AM
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NBS Silverado build part 2
Starting part 2 of my build. To start off I went with ported 5.3 heads by PRC, BTR stage 2 NA cam for the LS1/2's and supporting mods for timing chain heads, trunion upgrade. long tubes and a tune from blackbear.
Overall the truck is really fun on the street but first time at the strip i ran 12.7 in the 1000FT. I was hoping for better but i have stock converter, open diff and 255 section width tires. So i know i can pick up a second and a half with stall, gears, tires and a limited slip. but i'm looking for something more.
I have a T56 ready to go in, plan on doing axle upgrade and aiming for a handful more horsepower.
I was thinking the stage 5 kit from trick but i don't know how a big turbo will respond to a manual trans, since i can't hold boost between gears, do you think i might be better off with a smaller ball bearing turbo? i'm not really sure on that. Plan on keeping the stock PCM so anti lag and no lift shift aren't really an option.
Any advice on maybe using the manifold from trick and piecing together a kit?
going forced induction i will source a new cam, probably stick with BTR's stage 2 turbo cam. but i want to keep my ported heads, stock intake manifold and throw in injectors and upgrade the fuel pump to support my fueling needs.
my goals are getting reliably in the low 12's high 11's in the 1/4 mile. I don't want to dump a bunch more money in the truck and be disappointed with power again, so i want to do it right this time around.
any advice is much appreciated. I'll get ahold of the guys from trick if they don't hop on this thread. Thanks!
Overall the truck is really fun on the street but first time at the strip i ran 12.7 in the 1000FT. I was hoping for better but i have stock converter, open diff and 255 section width tires. So i know i can pick up a second and a half with stall, gears, tires and a limited slip. but i'm looking for something more.
I have a T56 ready to go in, plan on doing axle upgrade and aiming for a handful more horsepower.
I was thinking the stage 5 kit from trick but i don't know how a big turbo will respond to a manual trans, since i can't hold boost between gears, do you think i might be better off with a smaller ball bearing turbo? i'm not really sure on that. Plan on keeping the stock PCM so anti lag and no lift shift aren't really an option.
Any advice on maybe using the manifold from trick and piecing together a kit?
going forced induction i will source a new cam, probably stick with BTR's stage 2 turbo cam. but i want to keep my ported heads, stock intake manifold and throw in injectors and upgrade the fuel pump to support my fueling needs.
my goals are getting reliably in the low 12's high 11's in the 1/4 mile. I don't want to dump a bunch more money in the truck and be disappointed with power again, so i want to do it right this time around.
any advice is much appreciated. I'll get ahold of the guys from trick if they don't hop on this thread. Thanks!
08-03-2017, 12:55 AM
#2
This is just me but you already have mostly what you want besides the turbo kit. I wouldn't even swap camshafts as that is just an extra cost, the motor won't care that you added boost to a NA cam as it's going to make stupid power regardless.
Now if this was a ***** out build to make all the power with all the boost, then yeah a turbo spec'd cam would be ideal there but from the sounds of it you just want to add more power and have fun so a new cam isn't exactly required. Spend that $400 on a set of injectors instead.
What is your power goal though?
How much do you value that T56? I could see it handling a lot of power in a 3,000lb car but in a 4200-4500lb truck you push the limits for sure.
Just to ramble more but a stage 3 kit with a 75 or 78mm turbo should make 500hp no problem through a stick. If it could hook and 60 foot good that's like 10-11 second 1/4's in theory.
Now if this was a ***** out build to make all the power with all the boost, then yeah a turbo spec'd cam would be ideal there but from the sounds of it you just want to add more power and have fun so a new cam isn't exactly required. Spend that $400 on a set of injectors instead.
What is your power goal though?
How much do you value that T56? I could see it handling a lot of power in a 3,000lb car but in a 4200-4500lb truck you push the limits for sure.
Just to ramble more but a stage 3 kit with a 75 or 78mm turbo should make 500hp no problem through a stick. If it could hook and 60 foot good that's like 10-11 second 1/4's in theory.
08-03-2017, 01:04 PM
#3
Check out Chodas build. Just went 7.8 first pass out.
5.3L cam solid tuning
With our 76/75 billet turbo.
https://www.performancetrucks.net/fo...9/#post5415861
5.3L cam solid tuning
With our 76/75 billet turbo.
https://www.performancetrucks.net/fo...9/#post5415861
08-06-2017, 03:16 PM
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I ordered trick's stage 3 setup with the 76/75 turbo upgrade. Along with the 4"race intercooler. The get I talked to when I ordered the kit was telling me about the truck you just posted. Pretty nuts!
Anyway. The t56 surviving is a concern. im wondering how much more it will cost to build the t56 compared to running a 4l80e. Maybe cheaper to find a donor HD truck with a 6.0 4l80 and a 12 bolt rear end. But I'd much rather have the 6 speed
Does anyone know of a boosted truck running a T56? I'd be very interested in their setup.
Anyway. The t56 surviving is a concern. im wondering how much more it will cost to build the t56 compared to running a 4l80e. Maybe cheaper to find a donor HD truck with a 6.0 4l80 and a 12 bolt rear end. But I'd much rather have the 6 speed
Does anyone know of a boosted truck running a T56? I'd be very interested in their setup.
07-16-2018, 08:28 PM
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Well I did end up with the trick turbo setup. Was a blast for like 1200 miles, when I learned why you gap the rings. Pistons 5 and 7 had broken ring lands. And #5 was a little melted. I stuck with the stock 220k mile 4L60e. Which somehow survived the beating for the limited amount of time I could beat on it.
so. Now I want to rebuild my 5.3. I am having no luck finding an lq4/lq9 or a gen 4 5.3 for anything under a few grand. So I want to do at least forged pistons and rods. I’ve read enough to be scared of the stroker motors and huge over bores. But one of my cylinders is scored enough that I can feel it with a fingernail but just barely. Any advice on where to go from here?
I am looking for super reliable 650 to 700whp And want to keep the engine build under 3k with machine work. Help! Haha
Last edited by 1967c10; 07-16-2018 at 09:27 PM.
07-16-2018, 09:23 PM
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No dyno unfortunately. I Was doing pulls for the email tune I was doing with blackbear. May not be the ideal way to tune, I’ll have to dyno tune it after the rebuild.
The wastegate was set to 8.6 PSI I think. And I recorded 0-100 in 7 seconds. Not too slow. Haha
The wastegate was set to 8.6 PSI I think. And I recorded 0-100 in 7 seconds. Not too slow. Haha
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07-16-2018, 09:42 PM
#8
Sounds like it went lean.
Email tuning on a turbo setup is kinda playing with fire sometimes.
Ask a machine shop what they think for an opinion but if it's hardly something you can even feel a dingle ball hone will take care of it if you ask me.
Email tuning on a turbo setup is kinda playing with fire sometimes.
Ask a machine shop what they think for an opinion but if it's hardly something you can even feel a dingle ball hone will take care of it if you ask me.
07-17-2018, 10:05 AM
#9
I'd just punch it out to 3.898, 5.7L bore and run forged ls1 pistons and some gen4 rods. That's what I have in my 01 truck now and seems to be taking the beating. The machine shop should sonic check the block, but most 5.3 blocks are fine for that over bore.
Oh, and even gapping rings, you can still break ring lands like that. I did on my ly6 with gaps set at .025. Pretty sure that's a detonation issues from too much timing.
Oh, and even gapping rings, you can still break ring lands like that. I did on my ly6 with gaps set at .025. Pretty sure that's a detonation issues from too much timing.
