The 3900 V6:
http://wieck.com/public/*2PV_059789
http://wieck.com/public/*2PV_059814
http://wieck.com/public/*2PV_059810
http://wieck.com/public/*2PV_059808


SC Ecotec:
http://wieck.com/public/*2PV_059785

 

The 3900's intake manifold looks like the Dodge ram-head logo...

 

THe first time I ever read about the 3.9L They mentioned it being 245HP. Has anyone else heard any HP number for this engine?

 

Actaully,I'm a little curious as to why it's designed like that...anyone have any idea??

 

What hi-tech features will be on the 3900?
Looks a bit more advanced then the 3500 V6.


My ex's 3400 GAGT can* run a 15.5 in the 1/4 and thats only with 175hp!

So the 3900 version should be pretty quick.

 

3900 will have Displacement on Demand, and Variable Valve Timing.

 

from the caption on the forth picture it says "variable intake manifold" which i take to mean variable length intake manifold. there is some technical reason for why this is better but in simple terms varying the length of the intake runners allows for maximum torque at all kinds of RPM ranges. for the post part it helps out at the bottom and at the top (since most engines are already strong in the midrange as it is). so i guess you could say its the solutions that's "the best of both worlds".

if its done right, the engine feels "linear" instead of "coming alive" at some RPM. its good for all around performance, drivability and all out acceleration. but it still feels better when your engins kicks into its sweet spot and you KNOW its on.

 

I can't imagine it having only 245 horses. The current S/C 3800 is making 260 in the GTP's, I doubt a brand new engine would make less than that.

 

i have a different intake question. it looks like its on "backwards". this is fine for FWD setups, since the engine is sideways anyway, but it looks like it will need some work done to it to adapt for a RWD longitudinal setup.

is this a hint that this engine isn't destined for a RWD application? because, for all intents and purpouses its a "new" design, if they new it would be going into RWD cars at some point, why would they put the intake on backwards?

 

this 3900 is NA though... with a SC it would probably be more than the 3800 SC, i agree. another clue it won't be 260 NA is because that's way too close to the inline 6's 275. and that's a much more expensive engine with larger displacement (not to mention twice as many valves).

the 3900 might actually be closer to 235.

 

This 3900; it's a 60 degree V-6, right?
If it is, is it just a bored & stroked 3100 or 3400?

The heads & valve covers look like the current narrow angle GM V-6.

I just wonder if this engine is new enough. It looks like a rehashed design. Not to say that's bad. It just seems like GM is hyping these engines as something wonderful and new, when in reality, they aren't.

 

Yeah, nothing to write columns about..but what's up with that manifold design?

 

uh, re-read the thread. there's a lot more going on than just larger bore and stroke....