You are correct but it is still an efficent design that derived from it.

Sure GM is doing fine, but alot of things could be better. They just arent effiecent as hemi/pent-roof design on hondas and toyotas and others. Power per sq inch in other words.

 

5.7L HEMI Magnum V8 - 340hp, 390tq

5.7L LS6 - 405hp, 400tq

 

Now how high does each rev, how aggressive is the came they are running, how is the port of the head, size of valves and all important compression. Yeah

There is a reason why Top fuel and all other drag cars in the 5's and below uses hemi/pent design and not wedge.

Do not get me wrong, the wedge can make lots of power, just not as efficiently as the hemi/pent.

And the Hemi/pent stands out much more when boost is in the equation.

 

You're just a pushrod hater.

 

yea I agree the technology is cool I think it really just comes down to manufacturing cost why everyone doesn't jump on that bandwagon. But the bottom line is a hemi equipped turd is still a turd

 

Well yeah, there's no doubt that they could make more power if they switched to a hemi, but isnt it saying something that they CAN pull 400hp out of a 5.7 liter pushrod motor while retaining AMAZING fuel economy and emissions from the same motor?

I think what alot of people dont realize is that GM had the ability to make a OHC motor, and it would have come after the Gen II smallblock instead of the LS1, but the powertrain engineers said no, lets just keep with what we have; a good old fashioned "low tech" pushrod motor, 2 valves per cylinder, with a wedge shaped design.

Besides, GM is doing the Pent roof/hemi thing. The Ecotec motor is an AMAZING motor from GM. They just dont want to put in the cost effort to change over their bread and butter smallblock to a Hemi/Pent Roof design mainly because of design/manufacturing costs, especially when it is working fairly well for them now.

 

400whp doesnt really amaze me out of 5.7 liters sorry. What does amaze me is 260 out of a all motor 2.0 liter with better gas mileage than any other v8 i have every seen or read about. But hey i understand where you are coming from. I am a fan of the Chevy small block and crate motors, because of the ease of it and simplicity.

 

and a 1600hp 1.5 liter also amazes me at 18 hp per cubic inch.

 

WHAT PRODUCTION ENGINE IS THAT!?!?!? ooooops, nevermind

 

The new civic!