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Supercharging a 4.8

5361 Views 128 Replies 22 Participants Last post by  matthimself
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Would I need a new high flow fuel pump for it? And why are you wanting to sell? Something wrong with it?
Read a little more before you go with a huge purchase like this for every $1 you spent on the engine I would spend $1 beefing up the rest of the drivetrain. Even if you get the supercharger setup for $2500 you'll need a built transmission and a detroit true trac for the rear end.

This stuff gets covered almost daily. Read a bit then decide if it's right for you.
 

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can it handle the power itself? yes. The way your truck will be driven once you have a supercharger? no. The thing is its cheaper to beef it now and have it reliable than to skip it and not have a truck for a while when it breaks.
 

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I've looked around some using search but nothing really gets very in depth about the whole situation. So you're sayin my transmission and rear end couldn't hold the extra power? I've only got 20k miles on the truck so I figured they would be alright for a while
In the 3 minutes it took to search:
http://www.gmfullsize.com/forum/showthread.php?t=159470&highlight=supercharger
http://www.gmfullsize.com/forum/showthread.php?t=153338&highlight=supercharger
http://www.gmfullsize.com/forum/showthread.php?t=140370&highlight=supercharger
http://www.gmfullsize.com/forum/showthread.php?t=130077&highlight=supercharger


Those were just some of the first I found.
can it handle the power itself? yes. The way your truck will be driven once you have a supercharger? no. The thing is its cheaper to beef it now and have it reliable than to skip it and not have a truck for a while when it breaks.
No a stock transmission isn't going to be able to handle 400 rwhp/rwtq no matter how you drive it(and don't say never going full throttle because then you wouldn't have a 400 rwhp truck). There's no way around it. There have been fewer than 5 people I know who have gotten away with it, but for every 1 person who has a success story there are literally 100s of others who have had one fail
 

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Why not a 6.0 swap? It's cheaper and will still give you a lot more torque than your 4.8 has right now.
Yeah, not to mention the transmission will have a much easier time handling that. Servos, HD-2, and a cooler and it'll be fine as long as you don't drive like a pissed off 16 year old kid with a V-6 mustang.
 
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