Thread: VVL VE Vs DE VE

stock for stock, a VE-T will make more power, but how will the block internals take it?? that's what you gotta ask. how the head flows before and after the cams are activated is a big difference compared to a DE. money to power ratio is still in effect cuz the money you spend buying each motor like you spend 1300 +/- on the ve or you spend 300-400 on a de and throw a turbo on it. you'll make more power than the ve-t with less money.

now to have high hp numbers and still be streetable more reliably, then the ve head would come in.

^I feel the same way. If I pay 1200-1400, I want it to be a VE all motor monster with every bolt-on and last a while. If I spend $500 to the door, I want to boost the snot bubbles out of the DE.

IT WILL SPOOL FASTER WITH THE RIGHT CAMS!!!!!!

ITS SIMPLE MATHS!

ever gone from standard det cams to a set of bigger duration cams? what happens every time? you loose spool especially with fast spooling turbo's, yes it hits a lot harder cause there is often more lift and power lasts longer due to the added duration but it will take longer to spool.

for those of you that know how cams work will know that a VAGUE guide to follow is lift equals power and duration equals where you want to make that power. obviously it is a lot more complicated than that, but its the simplest way to describe it.

every single rpm will have a cam profile best suited to that rpm, simple, it will not be 100% suited to any other rpm, so what we therefore do is give that profile a "powerband" where the cam is efficient this is due to the way 4 stroke engines work. Hence why you have top end cams and low end cams, this is also the reason you get that lumpy idle.....because the cam is grossly inefficient at idle.

Therefore a well setup vet with suited cams WILL have a bigger powerband and spool faster as it has two profiles to draw its efficiency from

Its not as easy as saying for 400, 500, 600 or even 700hp+ the vet is worth it. With the right cams the vet will be worth it at any powerlevel for those wanting the best powerband.

The only reason these misconception have come around is because at the moment the ve cams have huge overlap and are best suited to top end power

I am not talking about boosting a stock VE. Vs. a stock DE. I am trying to have a discussion about the differences in Volumetric Efficiency between the two heads.

The point has already been made by ca18 and coheed, along with totaled.

So in short taking advantage of the VE head needs a BIG turbo, along with better cams to optimize powerband and horsepower. Therefore for anything under 400whp a VE is not necessarily needed unless you want to spend the extra cash and then R&D some cams.

Does anyone have the volumetric efficiency of the different DE heads and the different VE heads?