Frank does that mean that if i do a chassis upgrade that I will then need to do the same for all of my parts, or I will potentially be slower using parts built for the first chassis?
Yes & No Tim!! Some parts may change how well they work but majority should be the same.
When you update a chassis or any part it's simple an evolution of the past design meaning the part will usually work better with all other parts but may not be prefect; which means it needs fine tuned.
So while you upgrade a chassis; the chassis will increase it's stats but you will also see a small effect to other parts as they were not designed for that chassis; so when you cycle through then they will work better but the chassis is still going to give you a huge speed boost.
We will see since I have a new chassis that should be ready for Thursday Practice & this weekends race.
"if a part shows 'Huge' or 'A Lot' of finetune potential then we can assume that it is not working well with the chassis it was originally designed for" > Correct. If it's like this for most parts, then it's not working well with its intended chassis.
Tim, no. Upgrading a chassis doesn't change the synergy of the parts and the chassis. Just to clear up as well: everytime you continue developing a part (even if it's just to focus on aero for example), the finetuning will happen. When you focus on finetuning it just does it more than when not focusing (like the other focus options).