New to the LS world..

Recently purchased an 02' z71 suburban. Stuck a cam, springs, wires, and push rods in her, put 4.88s front/rear, dyno tuned it on 35's and she put 346 to the ground. 5.3L I should mention.

Just purchased an on3 kit.

-76/65 journal turbo
-80lb injectors
-dual pump
-11psi wastegate spring

Also have a PerformaBuilt trans on its way as well.


Excuse me for my ignorance as I am fairly new to the turbo and LS world, as well as this forum.

I'm on a budget with this vehicle (obviously with the purchase of the on3 kit)

Question is: What am I missing, anything I should add, and what are the results that I should expect..

Thank you in advance for all of you fellas time and input👍🏼

 

2 BAR map sensor, new spark plugs + lowering the gap.

Just know you are limited to 500-550hp on that motor because of the weaker connecting rods.

 

I've heard that these motors can hold a lot more.. Damn, smh��

 

They can, just not the early GEN 3 motors like yours.

Basically the 99-04 motors use the smaller rods. The motors with GEN 4 rods can hold 300+ hp more.

 

Well, shiiit....

 

What kind of numbers can I expect from this setup?
Going to run it at 10lbs

 

550rwhp?

 

Apples to oranges, and hopefully your turbo flows better: but I made 477 on 12lbs with a P1SC. 2002 5.3, completely stock exhaust and an LS9 cam

Its about flow, not psi, so if that turbo flows more than the P1, you will make more power at less pressure.

Id say high 400s, low 500s.

 

Well, the fact I made 346 all motor, and going to run 10lbs, I think I would be somewhere between 500-550rwhp. They say about 18-22 rwhp per lb of boost huh?

 

Was that 346 in 2nd or 3rd gear? Corrected numbers? What cam?

I see youre in Houston... Whos dyno?