Really? Damn, I regret buying the wheel when it first cam out. I would of saved lots of money. The one I have now is also a V2. What else can say about the difference? When turning, does the wheel still make a fishing reel sound? Can you tell if they used a different fan? Is the force-feed-back any different? And lastly, can you hear any other unpleasant sounds coming from the inside while using the wheel?
About the fan, I always thought that it sucks air into the system, but after I took it apart and let the fan operate without the hood, it seems that the fan is actually blowing all the heat out of the system.
The V4 doesn't do a physical lock to lock calibration (so no clacking noise caused by it hitting the stopper) and it does it slower. The same speed as a Fanatec and then stops in the center. Mine was calibrated perfectly out of the box (unlike my V2) and it ran firmware 35. The difference is really the pressure of the pedal pushing back against your foot that's different. I think these are at about 75 to 80% the strength of the torsion gas/clutch springs. They are closer to my old pedals from the G25 now in my opinion. The brake is almost as heavy as the V2 brake with torsion spring and brake mod in my opinion. I just noticed that it sometimes squeaks while braking though (like the brake mod spring grinding against the pedal, a metal on metal scratching sound. It went away over time (a few weeks of intense use)). Might have to use a bit of metal lube (i have some from the CSP tuning kit 👍) if it doesn't go away over time. However that's the only pedal that does it up till now.
The wheel still sounds like a fishing reel. I only notice it when I turn it off though, not when I do FFB tests in the driver menu or playing a game.
However I do notice that the motor used in the V4 seems better build. I don't feel the cogging as much as with the V2, also it feels like the FFB is getting across a bit more fluid. I need to put a disclaimer here though, as I have driven it for barely an hour I haven't been able to properly break in the motor or the rest of the wheel. So things can change over time.
The fan sounds like the same old I think, not sure though. When a fan runs well it doesn't make any odd sounds other then you hearing it displacing air. The fan is a tiny bit quieter though, but maybe that's because my old V2 replacement fan was already getting noisy again. Just like I said earlier, wheel needs breaking in so time will tell how well it lasts.
The force feedback apart from the more fluid (less cogging) motor I don't notice anything different though.
What I did notice was that the paddles were much nicer to use. A more prominent click like on a CSR Elite with the same travel as on the V2. However if my feelings are correct, the pedals seem to be made out of a thinner metal plate. About half a millimeter thinner. Or maybe the chrome layer is thinner? It feels nicer in my opinion and just as sturdy.
The wheel rim... much nicer in the hands. They used a different type of rubber. It is a bit thinner but lies nicer in the hands. Also the color is more black, the V2 was more grey ish and I noticed scratches soon on that one. This V4 rim feels a lot more scratch resistand. Also the finish seems better. While on the old wheel I still felt a seem from the rubber pressing, on this one I have to really feel for it to notice it at all. Also the red center marker is finished in a thicker and more proper layer of paint. On the V2 it was really thin (I could almost see the aluminum through it) and on the edges the aluminum was already showing.
Also for the entire wheel I didn't notice any weird noises. Not even a single one from the plastic casing when I grabbed it on different locations to align it with the holes on my rSeat.
The pedals are different too apart from the springs. The metal frame is more rounded all around. The powder coating is more properly done. Also I can't put my finger on it, but I think there are some dents in the aluminum of the pedal casing (where wires run through) at the position of the feet but also to make it a bit sturdier. Another thing is that the screw holes seem a bit different to me when I look down the pedals, however I think that's imagination. lol
All in all, even though the pressure of the gas/clutch springs is less, I think the V4 is more properly finished overall. The pedal pressure might differ but I quickly adjusted to it after a bit of time. I am very pleased with my exchange as it is definately a more solid feeling product. One last thing i'd like to note, and that is that with the V2 I had a bit of slack of 1mm in the wheel rim connecting to the hub, causing the wheel to give me a jolt with strong FFB effects because it shifted a bit. With this wheel I haven't noticed this at all.
Anyway... I hope this is enough info. I can't give you more until I have properly driven this for at least a good week, and this week has been busy as hell for me.