Engines

What size are they V10s, V8s or V6s?

I'm planning on signing up Cosurworthit at the end of this season & I was wondering what model it was based on.
Lots of madness involved in my decision.
If I add Elves fuel to the Cosurworthit it equals 15 response/performance resulting in 15,000rpm :P if only lol

Cosworth's 2005 V10 was the TJ model, which had its max RPM at 19,000 rpm.
Cosworth's 2006 V8 was the CA model, targeting 20,000 rpm from the outset. This was the first time it had produced such a high-speed V8.

I believe the game has modeled its engine suppliers' motors after the V8s. What size, who knows.

Could be a very bad choice looking at Williams results but then I will be using different tyres and fuel than what they used :D
https://en.wikipedia.org/wiki/Williams_FW28

Baring in mind Cosurworthit look rubbish anyway, there is no point using them. And yes, I think they are based on the 2.4 V8s

what combination of engines and fuel supplier is the best ? :) 

You'll just have to keep playing and find out, Šime.

It's not rubbish it's lighter than the rest plus uses less fuel so there is 2 advantages of being slow :D
High power tracks will be like current Honda picking up scraps but the slow tracks will have good chance of points bit like Renault still slow but scoring :P

The challenge in fuel formulation is finding the optimized balance of a range of performance parameters. Obviously optimizing for power is a priority – but there isn’t too much point in doing this if you have to compromise too much in terms of fuel efficiency. There are also two types of fuel efficiency, volumetric fuel efficiency (when the fuel is designed to give the best performance based on volume) and gravimetric fuel efficiency (where the fuel is designed to give the best performance based on mass).
You may have certain circuits which are marginal in terms of fuel tank capacity, in these cases maximising power and volumetric fuel efficiency is key. At other circuits the fuel tank size will not be a constraint, therefore gravimetric fuel efficiency (i.e. reducing the weight of the system) along with power will be the most important properties. Teams, together with fuel suppliers carry out extensive modeling and engine testing with the candidate racing fuels that they provide them, and that way they know that the best overall fuel is selected for each circuit. So test, test, test.

ok tnx :))