010010011010 wrote:So as you said engine sound is about perfrence, opinions, but im not allowed think turbo engines sound crap?
Your statement only show that you can't have heard that many turbo engines in reality. Turbo engines can sound very different from eachother just like naturally aspiranted engines can.
010010011010 wrote:
I didnt say you need no knowladge to design a Turbocharged engine, I said that any spanner can get 1000hp quite easily using just a turbo. As I said 'With turbos you just have to know how not to let your engine destroy itself', and perhaps the 'just' there was belittling the task so I appoloogise for that, but the engines will loose all their obvious amazing technology, and we will be left with engines you can make yourself, only they wont be as reliable.
This is again just a bunch of crap. You can get 1000 hp quite easily with a naturally aspiranted engine too. It's just a question of having enough displacement, engine speed and cylinder pressure. But the challenge is not to get more than 1000 hp - guys with big V8's and carburettors have done that for decades without big R&D budgets and specialist machinery - the challenge is to get the best performance possible within the regulations. If the regulation say 3 liter NA, 10 liter NA or 1.5 litre turbocharged doesn't matter, each regulation may have its own difficulties and result in different performance, but the challenge is the same.
With a displacement limited formula for NA engines, the development trend is toward increasing engine speeds, increasing number of cylinders and larger bore/stroke ratios. This since such a configuration can only give a bmep around 15, and as a result you can only make power through engine speed.
With a displacement limited turbocharged engine the development trend is instead mainly focused on increasing the supercharging pressure, since this offers the largest benefit. If you're capable to increase the boost from 2 bar abs. to 4 bar abs. you can double the engine output. But engine speed is also important, and similar to the NA engine a larger number of cylinders and an increased bore/stroke ratio will have a positive effect on the engine.
With a fuel limited formula you want to develope the power with fewer cylinders and a lower engine speed instead, since such a configuration offers a higher efficiency due to reduced friction and heat losses.
010010011010 wrote:
Maybe im wrong but ive never seen a 3liter NA crate engine with 1000HP
If the goal is 1000 hp, and there are no regulations, there is no reason to limit yourself to a 3 litre displacement. Then the only thing you need to look at are output vs. weight and size, fuel consumption and cooling requirement.