Not at all! :grin:
Just make sure your rads are open enough to keep the temps in operating range, no more, no less.

I just did it offline. E-4 With 50% fuel, full ammunition load, and a dive of 500 meters. I engaging WEP at full throttle and at approximately 10 meters altitude. I was able to maintain 480-490kph for the duration that WEP was engaged. When disengaged it rapidly dropped to 460-470kph.
in level flight I was able to attain and barely maintain 470kph. Any deviation (like pulling up out of the waves LOL) dropped it to 460kph.
The only other thing I could think to add is to make sure your trimmed properly.

EDIT:Should add that I started with the same 109 (E-4, 50% fuel, full ammo) at 500 meters, cruising at 1.2ata, 390kph.

Ok. So basically we are still at unhistoric FM (too slow) for the 109E. But there are some ways to fly her for some time faster than usual.

Fixed, although I'm not certain if the comma is necessary.

Yep. But of course, the Spit Mk 1 and I think also the Hurri are not getting historical performance either, so as long as there are no Spit 2's in the game, everything is surprisingly balanced.

If you get caught by a spitfire who has more E than you you're in trouble, and if you try to TnB with the Allied aircraft you're not going to do well.

EDIT: Actually, that's about the best way to put it.
In level flight, no dives or other "tricks" I still cant best 450kph level at 10 meters. I was rather surprised!
Most seem to agree (see the spitII thread) that it should be at least 460kph level flight on the deck sans WEP.
Jeeze, I forgot how off it was. I just went around the problem I guess.

Anyhow don't fly that low. Being toasted at 10m or 500m does not makes any differences.

On many occasion did I found myself keeping the distance with a 109 in my hurri. The fact is those guys were in cte dives and probably with a too low pitch setting. I had no prob to stay with them with coarse pitch (CSP) and 1/4 rad (no Boost cut out).

Nothing happen quickly when flying those planes that had globally the same perfs. What ever you choose to do you need to be a little patient and persevere before seeing any result.

So, the next thing that got them nailed is the lack of self persuasion. They started to turn toward me...level : you know how it ends.

@Doggles : The Hurri is certainly one of the best plane modeled (despite her magic boost that shld be corrected).

I reported it because it was pursuing me for a long time, he closed in, and he didn't have an energy advantage. I think that the manual PP would improve a bit the situation, but afaik the 109 had some 50 mph more, the E-1 doing 301 mph at sea level, and the Hurricane Mk I rated at 254 mph (prototype did 290 mph).

FM needs definitely an overhaul.

You're right, my bad for going low after a B&Z. After meeting the Hurri at same energy above Dover, I choose to disengage and dive to accelerate quickly and rush away, but I underestimated the Hurri's top speed in this game. Anyway I wasn't so fool to dogfight a Hurri ... :D. And I was saved by some mates close to the French coast, as usual ... :).

Against a Hurri with more E than you you should dive/extend to gain speed and even out the energy states, and then begin a shallow, high speed climb.

It's the best escape, but top speed should be much higher for the 109 in level flight, in RL.