heres the link
http://www.carspyshots.net/zerothread?id=16206

 

im full of envy! they finally moved the exhaust to the back of the engine. also using MIVEC on the exhaust side. a 5% power increase! not bad. i wonder what made the most difference and what can be applied to our current block?

I think this may have been done as a ground working step to develope a more narrow v6 engine as well from the eclipse that might also fit in a lancer/gallant. possibly taking a page from the honda book considering the interchangability, which would help products hold value longer.

was the 4g69 also made to spec /w the DC a9-type? ie: will this block be 'swappable' in the 04-05 RAs?

 

Where does it say it's a DOHC engine??? I think it's a SOHC, just like the current engine...

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says it applies the MIVEC principle to the both the intake and exhaust side. thats usually DOHC. with VVT on both, i dont see how it could be otherwise.

 

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I thought our version of the MIVEC (SOHC) was already acting on both an exhaust and an intake valve...

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i just want the head

 

So it suposedly has a 5% increase of power compared to our engines??

And you can go all out with a 600cc motor.

 

you can do exhaust and intake on SOHC..

-joe

 

Looking at the pic it doesn't look like it's DOHC... If they narrowed the lobes than it is possible to control intake and exhaust... A 5% increase sounds reasonable... I like that the exhaust exits out of the back...

 

Thank you... that's exactly what I thought. I can't see why you couldn't... one lobe on an intake valve and the other on an exhaust valve...

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Honestly, I always wondered why the intake air has to travel to the back of our engines... and why the exhaust gases have to take the long way out to the back of the car. Anyone has a theory about this???

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ya, i guess u guys are right. it could still be sohc. i was thinking that since the car has 2 cam profiles for intake, giving it 2 for exhaust as well would make it too long. but adding the 2nd set of cams would make it too wide. lol! guess we'll just have to wait until it makes its way to the states.

ive always wondered about the intake/exhaust layout myself. i know its how mitsu has dont it on all their more recent engines, but cant figure out why. most japs do it this way. most US do it the other way. no idea

 

if you look at the back of the head you can see where the exaust cam sits all the way to the back of the head,and it would have to be centerd if it was sohc. you can see the bulge in the pics. plus my friend at mmna said it would be dohc.

 

Considering the level of advancements to that engine 5% isn't that much at all...its only 8.1hp. However, that does put the RA about even w/ its most direct competition....the Sentra SE-R Spec V which still has a 5hp edge over the RA but also has a .1L displacement advantage as well.

Either way, a step in the right direction.

 

u be the judge. i think he might is right. our valve cover is smaller (far as i can tell. not the best angle). if so, this is covering more valves. when i said it would have to be wider, i guess i may have been right after all it looks wider! i might just be thinking wishfully