Toro Rosso STR7 Ferrari

[aral]

I think you can rather say it is 40kg of stuff that is located in the sidepod shoulder, and I am quite sure that makes a huge difference to locate that 5cm higher up

.... probably counteracted by something else which is sited lower down. Appearances do not influence c of g.

[marcush.]

40kg? that´s 20 kgs per side.....please elaborate what that might be? my point is :the really heavy bits -the two radiator assemblies end at the same total hight so not all of their mass is positioned higher up .a 100 gap at the bottom would maybe move the cof g of the radiator assembly up by 50mm . so what else ..the power electronics of the KERS system is the single item with some weight maybe ,and all the other stuff is some ecus and a wiring harness and maybe the expansion tank for the water...
But even if it was 40 kgs positioned 100mm up ,compare with the entire fuelload positioned well above this 100mm height (at least for eveything not RedBull).

[wesley123]

This is bhallg2k's post in the Ferrari sidepod aero topic.

You'd wish it was 5kg, it's probably not even close to that.

I am indeed talking 20kg's per side there, then the ferrari here it doesnt seem so much. But on the McLaren it is much larger. I have no idea what is located in that area but I am 100% sure it doesnt even come close to 5kg.

Then I am here posting the ferrari, with the radiator on the step plane. On the STR the lowest point is around 10cm above the step plane. You are not going to tell me that that doesnt raise the CoG significantly. And then we have the oil/gearbox rad even higher up to make space for a larger undercut with a smaller rad.

You are not going to tell me that the CoG of the STR isnt raised that much, If we take the middle road here we have like 35kg that is at least located 10cm higher up in the car.

[Nando]

I think you can clearly see here where everything has went in terms of removing it from the floor and putting it elsewhere.



Also notice that the double floor really isn´t providing that much more air then for example Ferrari´s or Mclaren´s cokebottles which are maybe half that distance in width on the widest area.

It also looks like STR´s sidepods possible is a bit wider then most other sidepods. Looks like it goes all the way out to the edge.

I can´t even imagine the stress sidepods like this has to take. You would have to strengthen it in three directions.
Or even 4 directions.

[wesley123]

Nando you took a picture of the STR6, on the STR7 it is even worse.

Pictores of the coke bottle/undercut seem a bit hard to find, at least ones where you are able to see it well.



EDIT:
Here is a good high res one;

[marcush.]

we might be talking about 35 kg ,yes but raising them 100mm does not raise the centre of gravity of the car the same amount ...that is what I´m saying here.
those 35 kg represent 5% of the total vehicle weight and those 35 kg were and remain close to the cof g height ,the impact is unlikely to be significant.
I´m pretty sure things like Cof G heights is not very important to laptime in qualy it is significant to tyre endurance and elapsed time over a stint ability to carry a set of tyres longer than others .
But even this will be totally dominated by other (aero) forces on the car methinks.

Does the concept need as much coke bottle as a more conventional sidepod? the trend has reversed in that area and teams have build big bulges and downward ramps occupying the area they tried to open up as much as possible in the years before.

[Nando]

Woah sorry guys, it was a 2 year old car..

That looks much better i have to say.

[Nando]

Found a picture with the new exhaust, right click for proper sizes.

[turbof1]

we might be talking about 35 kg ,yes but raising them 100mm does not raise the centre of gravity of the car the same amount ...that is what I´m saying here.
those 35 kg represent 5% of the total vehicle weight and those 35 kg were and remain close to the cof g height ,the impact is unlikely to be significant.
I´m pretty sure things like Cof G heights is not very important to laptime in qualy it is significant to tyre endurance and elapsed time over a stint ability to carry a set of tyres longer than others .
But even this will be totally dominated by other (aero) forces on the car methinks.

Does the concept need as much coke bottle as a more conventional sidepod? the trend has reversed in that area and teams have build big bulges and downward ramps occupying the area they tried to open up as much as possible in the years before.

I think he was right about the 100mm. The parts heighest located in the sidepod indeed will not have went much heigher, could be something like 5mm-15mm. However, the parts low inside the sidepods clearly went up heigher then 100mm. Sidepod length increased towards the back, meaning parts were shifted from a low to a much higher position. Hell it could very well be more then 100mm.

[marcush.]

I have checked on the Mclaren electronics site and generally the big boxes weigh in below 1000g per unit ,apart from the Engine electronics .
so it is save to say you are loading around 1 kg of weight into the sidepods per box.Count the (big) boxes.
As I said before the one exception is the power electronics for KERS which might or might not have a home in the sidepods.
In that case ,the claim holds truth absolutely ,I fear this could amount to significant weight within the pods.(RedBull seem to follow that path )

[Nando]

Do we have any pictures with the sidepods taken off?

Would be nice to see if you could see any "reinforcements" or something else which differs from other cars.

[marcush.]

I doubt there is much to see in terms of reinforcements ,what would you expect?
The floor itself is todays a honecomb affair and does not need much in terms of stiffening by the sidepods .I think some teams still have some stays running from the engine sump to the floor if anything .
The sidepods cover ,well that´s taking carew for itself and i do not really see why this would need additional stiffness with toro rossos approach.leves us with raqdiator mounts=inlet ducting -the rads usually are mounted with elastomer cushions on the radiator inlet ducting-which is mounted to the tub anyways.I don´t think anyone does mount rads to the floor.,not even ferrari who have upright rads as we can see above.

[Nando]

what would you expect?

No idea really, just thought that because they build horizontally it would look different underneath.

[marcush.]

the loads are fed into the sides of the tub so you might need to increase component stiffness a bit due to the reduced total height of the inlet duct and the width of the radiator ..nothing you could see having a random look at the parts mounted.

[marcush.]

last years rh sidepod internals
borrowed from scarbs site
lh sketch as well: