Thread: V6 or V8?
View Single Post
Old 09-16-2008, 09:32 AM   #10
radz28's Avatar
Drives: Ultra-Grin
Join Date: Oct 2006
Location: Crapramento, Crapifornia
Posts: 13,080
The DI is more efficient than the MPFI because it atomizes the fuel more completely thereby making it easier to combust. What that amounts to is there is more engery produced from that fuel.

IMHO, right now, in terms of aftermarket support, the V8s have the advantage. A lot of what has worked on on past LSX engines can work on this one. The heads and intake are the biggest diversion from the LS1, however, the ports on LS3s are so huge that they rival CNC ported numbers from LS1/2/6 heads. In addition, I'm sure the LS3 is easier to work-on and modify because it's just a simpler design; it's not DOHC like the 3.6. The LS3 will always make better torque which'll move the car better.

I say, given your situation, if you can afford the V8, go with it. It probably wouldn't hurt to check out some LLT sites too if you haven't. I know there's a lot of untapped potential, but I admittedly don't know as much about that engine yet.
05 Hummer H2 SUV on OEM Air Ride
Forged 11.4:1 408 LQ4 (K1 crank & rods; Mahle pistons)/CPP LS3 CNC heads/BTR Stage IV LS3 cam/home ported L92 intake manifold/ported 90mm TB/custom Volant CAI/Kooks 1 7/8" LTs and 3" H-pipe/AFE dual 3" CB/Corvette Servo/el cheapo lift/Cognito UCAs/Sphon poly adjustable TA/Sphon adjustable rear LCAs/e'fan conversion/DirtyMax radiator/Moroso catchcan/HPTuners/HID conversion/LED exterior lighting/LED interior accents/Autometer Cobalts/AEM WB/ Pioneer AVH-5600BHS/Pioneer GM-9601/2-Pioneer TS-W310D4s/Obcon Labyrinth dual-12 box/lots of other little stuff
radz28 is offline   Reply With Quote