Supercharger for L9H 6.2?

ajensen383 · April 6, 2016

I have been kicking around the idea of putting a supercharger on the truck. From what I have researched there seem to be 4 different brands out there

1. Magnacharger

2. Whipple

3. Edelbrock

4. SLP

I know alot of guys on here use the Magnacharger, but how much real difference will there be between them?..Is it a matter of just pick one, or will i see more gains with a specific brand?? FWIW..I can get the Edelbrock set up quite a bit cheaper than retail, but are they as good as the rest?

RDP Store · April 6, 2016

Hey Buddy,

They are all quite good with equal gains. The difference comes down to ease of installation and fit and finish. The Edelbrock is bar none the best of the best on fit and finish and performance as well. The Magnacharger is a close second. All comes down to your budget. I can give you great pricing on the units, especially Edelbrock. Just shoot me a PM or give us a call.

Thank You

RDP Store

440-358-5500

Jennabear · April 8, 2016

We have run Magnachargers on all our DDs (1972 K2 Blazer, 2003 SSS, 2004 Z71 Tahoe, 2008 TBSS, 2013 Z71 Silverado, 2013 Denali XL) and have a Whipple going on our 2015 Chevy SS. You will see similar gains with all of them, so go with what fits your budget best.

We sell all major brand name superchargers, and have tuned many customers with FI vehicles. Happy to answer any further questions.

ajensen383 · April 9, 2016

Jenna. thanks for the reply...I sent you a PM as well... Im looking for the best bang for the buck really....

Regarding exhaust..I know there isnt any gains to be had by going to a cat back system but since i would like some extra sound, I was thinking about the Corsa sport system. Now that has 3" pipe as the intermediate pipe and muffler. The stock, exhaust with the 6.2 is 3.5" , with the extra power from the supercharger would it actually hurt performance going down to the smaller 3" diameter intermediate and muffler??..OR would it just be more beneficial to just leave the stock piping and replace the factory muffler with an aftermarket 3.5" in/out ... With an engine pushing 500+ horsepower is the single 3" adequate....

Edited April 9, 2016 by ajensen383

Jennabear · April 11, 2016

I am running a Corsa Touring with the 2300 on my Denali XL, absolutely no issues in choking out the air with me pushing ~750HP.

CostaMesaH2 · April 5, 2023

I just put in a new L9H motor with a Magnusson supercharger, it's working great in my 2009 Hummer H2. I just re-did my transmission too. It's like a new car again.

Kolwyn · February 6

I am new here and to the idea of doing any mods like this. So to start, is it stupid to look into putting a supercharger on Stock 2011 L9H flex fuel with 200,000kms? I want the extra jam, sound and jazz that comes with the idea of the supercharger but I want to also maintain the reliability of the truck, if that makes sense… any opinions or advice is greatly appreciated. Thanks!

KARNUT · February 6

21 minutes ago, Kolwyn said:

I am new here and to the idea of doing any mods like this. So to start, is it stupid to look into putting a supercharger on Stock 2011 L9H flex fuel with 200,000kms? I want the extra jam, sound and jazz that comes with the idea of the supercharger but I want to also maintain the reliability of the truck, if that makes sense… any opinions or advice is greatly appreciated. Thanks!

I’ve had a few super charged engines. Some I did, some I bought that way. I’ve tuned everything I’ve owned until I got it out my system or they finally ran good enough for me stock. That finally happened when I turned 60. I learned real quick that the only thing that hurts the engine is your right foot.

newdude · February 6

26 minutes ago, Kolwyn said:

I am new here and to the idea of doing any mods like this. So to start, is it stupid to look into putting a supercharger on Stock 2011 L9H flex fuel with 200,000kms? I want the extra jam, sound and jazz that comes with the idea of the supercharger but I want to also maintain the reliability of the truck, if that makes sense… any opinions or advice is greatly appreciated. Thanks!

Reliability? Leave it stock. Especially at 125,000 miles.

KARNUT · February 6

20 minutes ago, newdude said:

Reliability? Leave it stock. Especially at 125,000 miles.

Funny you say that. I didn’t take my S/Cs off once they hit 125K miles. But of course they don’t make them like they use to. Ford doesn’t have a problem with it. There’s several at my old shop right now. The kit pumps them up to 775 horsepower and cost 12K. Good for 2019 and up 5.0 engines.

newdude · February 6

10 minutes ago, KARNUT said:

Funny you say that. I didn’t take my S/Cs off once they hit 125K miles. But of course they don’t make them like they use to. Ford doesn’t have a problem with it. There’s several at my old shop right now. The kit pumps them up to 775 horsepower and cost 12K. Good for 2019 and up 5.0 engines.

Coyotes have forged cranks and sinter forged rods. Its got a good foundation for boost hence Ford's blessing for the factory blower kit.

An L9H truck 6.2 has a cast crank and powdered metal rods. Will it hold? Probably. For how long? Eh.

Factory GM supercharged V8s have forged internals. LSA, LS9, LT4, LT5.

Edited February 6 by newdude

KARNUT · February 6

15 minutes ago, newdude said:

Coyotes have forged cranks and sinter forged rods. Its got a good foundation for boost hence Ford's blessing for the factory blower kit.

An L9H truck 6.2 has a cast crank and powdered metal rods. Will it hold? Probably. For how long? Eh.

Factory GM supercharged V8s have forged internals. LSA, LS9, LT4, LT5.

I figured you’d know that.

CamGTP · February 6

Stock 5.3's and 6.2 that never came with boost from the factory hold 700-800hp all day long with proper tuning. People have been doing it forever now. Plopping a TVS-1900 or something like that for a super charger is adding 100-125hp or so worth of horsepower, it will live a long time with the right fuel and a good tune.

I say go for it if you got the money and the truck/transmission is healthy.