Quote:
Originally Posted by shrinkdoc
1Wow! Did you see what I saw on that engine?? 1well you didn't see it I'm not going to tell you. And I can see the exact specs just by looking at the pic. Looks the 5.0/302 is back.  just right for a z28. |
IMHO GM can produce a 5.0L Gen V engine and use it to replace both the 4.8L and 5.3L which should help with cost. Also its an excuse to produce a 5.0L Gen V SBC in order to go head to head with the 5.0L BOSS 302 Mustang.
This is just a rough est. as to what I think a Gen V 5.0L SBC would produce based off of what the LS3 makes and est. on gains for direct injection and VVT.
LS3 makes 70BHP/L so if it was in 5.0L form it would produce 351BHP.
GMs old 3.6L V-6 (VVT but no direct injection) produced 263BHP, currently the 3.6L with direct injection (in same application in CTS) produces 318BHP. the 263BHP version produced 73BHP/L and the new engine makes 88BHP/L. A gain of 15BHP/L or 21% in peak output, if you applied that same 21% to the LS3 and down size it to 5.0L then well. If you added 21% to the LS3 then it would produce 528BHP (which is going to be hard for some to believe). That would be 85BHP/L (an increase of 15BHP/L) and in 5.0L form would make 425BHP.
Though we have yet to get into what would VVT add to the SBC, however that comes down to what type of system. If its the GM cam phaser on the camshaft then gains in the past for said system has been about 10%. However if its the concentric camshaft VVT system then gains would be high though how much higher is unknown. Just working on the 10% increase in our 5.0L 425BHP V-8 engine would give us 467BHP out of our 5.0L engine.
Though this is all pure speculation....