Stock 15 Sierra SLT

[Pacfanweb]

2015 SLT

4x4

3.08's

5.3

6 spd

Bone stock.

 

What time should this run? Best guess I can come up with is low 15's?

[O_J_Simpson]

It should run anytime you crank the engine.

[UplandPa]

The 3.08 is going to hurt you a little! Some with the 3.42 2wd have gone 14's stock. You are probably somewhere in the mid 15's. That's more than respectable for such a heavy truck!

[Pacfanweb]

The 3.08 is going to hurt you a little! Some with the 3.42 2wd have gone 14's stock. You are probably somewhere in the mid 15's. That's more than respectable for such a heavy truck!

Found out that it does have 3.42's. That should help a bit. Still haven't had time to ride down to the Rock and test it, yet.

[Gorske]

On 9/25/2017 at 8:51 AM, Pacfanweb said:

Found out that it does have 3.42's. That should help a bit. Still haven't had time to ride down to the Rock and test it, yet.

I have a 2017 Silverado Z71 Double cab 4x4, 6 Speed, 5.3, 3.42 gears, and this is what mine ran stock before the tune. Here are my best times with the mods on e85. Hoping to get some more 93 octane passes in before the track closes for the year.

 

[Pacfanweb]

So 15.21 stock?  

 

And you're running low 14's with just a tune??

[Gorske]

On ‎10‎/‎15‎/‎2017 at 12:09 PM, Pacfanweb said:

So 15.21 stock?  

 

And you're running low 14's with just a tune??

Yup! This is with an e85 tune but yes just a tune and full street weight.

[Imcrazy]

Dang, low 14's with a tune is impressive.

[2017SierraSLT]

Those are in 6.2 territory. For reference, my tuned 2013 5.3 Vortec ran a best of 15.5@91. My new truck without a tune feels a bit peppier. I will be tuning mine, so hopefully I will be seeing similar times.

[Gorske]

Klug Performance gets all the credit for how my truck runs.