Good Afternoon Everyone,

I have few questions regarding supercharging a chevy Silverado. I am trying to decided between a C6 Corvette(LS2), Infiniti Q50 turbo(2016+), or a chevy Silverado(2008-2013 regular or extended cab). I'm totally sure the C6 would be the fastest out of the three with what I want to do I've always been a truck guy and I honestly believe I can get a modded Silverado to run as fast as the Q50. I have a 98 Silverado(Extended Cab) that I modded some with gears, torque converter(2.5K stall), exhaust and a comp cams tuner. That being said I was wondering if I can get these particular years of these Silverado's in the low 11s to high 10s. I have an idea of the setup that I would like to run but it has bought up some questions for me. Please see below:

SETUP

For the Silverado I would like to have a cam(212/218 low lift), Supercharger(Procharger around 8 to 10 PSI), converter(3K stall), Exhaust, traction bars, and tune. I have the links for the cam and supercharger. Not sure if the cam can fit the Silverado. I know Texas speed sells some with the duration that I am looking for.

https://www.procharger.com/truck-suv...ilverado-1500/

https://www.compcams.com/xfi-rpm-212...en-iii-iv.html


Questions

Here are my questions regarding this build if I go with this setup:

1. Are there any websites to get a reman 5.3 for 2008-2013? I see that ATK has the 5.3s for sale but only for 99-2007 silverados.

2. I see that the 2008-2013 silverados have the 6L80s in them. How are they with taking on more power? Do they need to be rebuilt to handle the extra power and if so who's a good vendor to buy from? From reading on here it seems that they can hold up wayyyy better than the build 4L60E that's in my 98.

3. Will the rear end hold up to the power I would like to make?

4. Will an upgraded driveshaft be needed?

5. What times could I expect to run with a setup like this?

6. With the exhaust mods would shorty headers be worth it on these 5.3s?

7. On my 98 I've always had issues with my starter and plug wires when I had the shorty headers. I tried wrapping the headers and the starter with heat wrap and a performance heat shield respectively. On the 08-13 would there be any issues in regards to the heat damaging any wires or the starter? If so, what can be done to mitigate that issue?

8. Would the setup I mentioned be good for the street/strip? I really like those setups as I'm not trying to go too radical with the mods.

9. here's what I was asking at the Infiniti forum. check out post #21. https://www.myg37.com/forums/g37-sed...rential-2.html

 

First of all for the setup, go with a cam that matches the blower and power level you want to make. The 212/218 is a great cam and would work but you will get more out of it if you get a specced cam.

1. Just rebuild your own 5.3. There is no reason to buy an engine whether it be remanned or not. If you have to buy one because the truck doesn't have it just buy used and rebuild it. You are going to be tearing it down anyway.
2. Yes you are going to need to rebuild the 6L80. @smokinlmm Did a bunch of 6L80 work and is now scrapping it all and swapping to a 4L80 though.
3. Yes
4. Depends on if you are going above 100 MPH but most likely yes
5. I couldn't say, probably 11s
6. No you will want long tube headers
7. Starter will be fine but the wires may want some wrap around them
8. Yes

That's all just conjecture though

 

Whats your altitude and what weight reduction are you willing to do on the truck? 4wd?

I don't see 10psi getting you into the 11's unless its 11.99

 

Yeah 11s might be a little optimistic but just recently watched an LSA go low 12s high 11s on a 4.8 with 14 PSI. It is AWD so a little different.

 

I live in north Florida and I'm not sure on the weight reduction. Never thought about it to be honest. I am also looking at 2wd.

 

The reason why I would go with a reman engine is because of what I went through trying to mod my 98 silverado. It was a nightmare but a VERY NEEDED learning experience. Through that experience I found that having things more of a "plug and play" style in my area yields better results.

 

I thought 14 PSI was like almost in the danger zone of the 4.8 or 5.3.

 

It's a torque limit more than a PSI limit and the engines you are looking at can handle a lot. 800rwhp on the stock rods all day. Pistons, well they should be upgraded to handle it

I put 12psi into a 5.3 and made 477 at the wheels. No way that's getting into the 11s unless it's a single cab short box on little tire with an amazing 60'

 

Hey don't shoot the messenger

 

You will need to make sure you buy the correct procharger also. There are several different ones offered.

If your going for the High 10s/low 11s, I did a truck few years ago with a stock 5.3, JFR 218/222 cam, KB Racing S475/83 turbo kit, 3.42s, stock 4l80 with a Circle D converter (can't remember exactly which one) I told them the info on the truck and what I wanted out of it. They nailed it perfectly.

Brake stall it to 4000 on the 2 step and it would run 11.3s spinnin thru first and hooking up halfway thru 2nd gear. It was a fun truck and it was the guys daily for almost 4 years till he went with a 416ci. He got it in the high 10s eventually with the 5.3 and some adjustable shocks.


I've had better luck with stock 4l80s than the built 6L transmissions in the go fast stuff. The 6L stuff cost way more to build also.