Originally Posted by 1Bear

Could my engine produce more power with a different camshaft, quite possibly? However, for a daily driver that runs 12.04 with what everyone says is the too small Radix MP-112 and 11.67 with a 75 shot in a 5650lb behemoth, all the while idling silky smooth and being gentle on the valve-springs, I don’t know that I would go so far as saying it’s too small. Maybe too small for max performance, and maybe too small for a supercharger that could push a little more air, but I don’t feel it’s too small for the 112 that’s doing all it can. And I know mine isn’t a fluke, as there are a few that are running similar times with basically the same set-up. Too bad the GT-7 is no longer available, as it showed promise as well and Roger’s (KySilverado) truck also ran almost identical times. I know the LS9 has comparable enough spec’s that Lingenfelter dropped the GT-7 as a cost savings, but due to the amount of effort and money it would take to convert to the Gen IV style timing components, front cover with CPS and the extension harness that is also required, I don’t see where it’s really the best choice for a Gen III equipped vehicle. Now if the OP had a lighter weight vehicle with smaller wheels and tires, with a larger more radical combination, I could see going with a more aggressive camshaft, but as it stands, I feel the GT2-3 should work as well in his as it does in everyone else’s. Another good thing about the mild GT2-3 is that while it will set you back a little purchasing it new, you will be able to run the LS6 valve-springs and could get away with the stock pushrods as well if you desired. Better pushrods are always a nice upgrade when you increase spring pressure or extend the operating range of an engine, but at this level it’s not 100% necessary either.

Originally Posted by foose04

Really nice truck man.... Don't worry about the 4.8L holding up, just make sure the tune is dead on and enjoy.

Originally Posted by AndysC3

Do you have any pics of your ride? ok, you should be fine with the gears.
The whipples have great low end torque. With a 3200 stall you will lose that low end. Most of the radix guys say don't go higher than a 2800.

Originally Posted by terravast4

Nice, clean truck. The 3000 stall will be fine, I am running one but I wished i had gotten a 2600-2800 because the radix is already producing lots of torque before the 3000 rpm...plus it flashes higher than the 3000 rpm's advertised. i would build the trans before or during your upgrades just to be on the safe side. Good luck!!

Originally Posted by Summitwhite06

I just got ahold of a sidemount whipple kit for my 06 sierra 4.8. Ive got a few questions on what I need to do to set up everything right to handle it. I currently have a tr220 lsa112 and long tubes. Will that cam work okay with the blower?
Also I'll need to beef up my transmission and I plan on getting an HD2 shift kit, seperator plate, pistons, billet servos, and I'm not sure on what size stall I will need to go with this new setup?

Thanks in advance

Originally Posted by stock48

Nothing at all wrong with the 112 lsa. I think it's a plus, and wouldn't go past 114*. Your cam will work ok, just something with a little shorter, intake, and same or tad more exhaust would have a broader power range.

Originally Posted by Summitwhite06

Well I already got rid of that 112 so I gotta buy a new one anyway. Would a GT2-3 not be a good one for it? That's what i was planning. And do you have any incite on the trans build? that's my current issue