Projected 2012 vs 2011 Car at Loudon

[Hoop-98]

To better understand the large difference the new car makes. I have modeled the new car at T2 Exit to T3 Entry with the following projection.
I am a bit of an amateur at this but I bet it will look like this.


2011
Race Weight 1750 (190 pounds for driver and fuel)
Corner Exit Speed 165 MPH
Turn 3 Entry Speed 173 MPH
Required Down Force 2500 Pounds
Drag 868 Pounds- 382 HP
Surplus Power 650 – 65 loss – 382 = 203 HP
Surplus W/P = 1750/203 = 8.6 lbs per hp

2012
Race Weight 1570
Corner Exit Speed 170.5 MPH
Turn 3 Entry Speed 185 MPH
Required Down Force 2500 Pounds
Drag 631 Pounds- 287 HP
Surplus Power 700 – 70 loss – 287 = 343 HP
Surplus W/P = 1570/343 = 4.6 lbs per hp

rh

[chuck34]

Thanks for the reality Hoop. But you do realise this just isn't exciting to some :rolleyes:

[Marbles]

What is actually known about the new car? Wouldn't drag and down force be dependent on the aero kit? I heard them throw numbers out but is it known what the "permitted" horse power will be? I know you're spit-balling but I'm just trying to find out what is actually known about the new specs.

[call_me_andrew]

Thanks for the reality Hoop. But you do realise this just isn't exciting to some :rolleyes:

My nipples beg to differ.

It just got yucky.

[Hoop-98]

What is actually known about the new car? Wouldn't drag and down force be dependent on the aero kit? I heard them throw numbers out but is it known what the "permitted" horse power will be? I know you're spit-balling but I'm just trying to find out what is actually known about the new specs.


For R/C and short oval 2 things are the big deal.

L/D ratio will decide high speed acceleration, I am projecting moving from 2.9 to the high threes. All we know is it is "much better".

The weight is huge if met, it guarantees a fast car for RC's.

The future will tell....

[DBell]

Interesting Hoop. I look forward to seeing more. In case you didn't see this Speed article yet, I'll leave the link. Maybe some info there you can use.

AUTO RACING - INDYCAR: Inside The 2012 Dallara (http://auto-racing.speedtv.com/article/indycar-inside-the-2012-dallara/)

[Hoop-98]

Yep read it, some interesting stuff. I think he meant 300 pounds less drag in speedway form, not 30. At 220 MPH 30 pounds = 18 HP, 300 is 180 which would make sense.

[jarrambide]

Can you do some kind of comparison but using a course and not an oval?

[Hoop-98]

If what we are hearing about downforce is true, I expect the car to be 2 - 5 seconds quicker on a 75 second circuit.

[DanicaFan]

Im wondering why they are keeping the speeds and lap times secret from Mid-Ohio on the new car. Is it because it didnt perform good at all ? Maybe EagleEye can give us somewhat of a reason.