Red Bull RB8 Renault

[bonjon1979]

Does the RB blowing concept offer only a very small exhaust assisted diffuser seal sweet spot, and they simply have not found it fully and are only realizing, say, 20% of its full potential?

Or they could be at 90% or 5% or 100% or even, dare I say it, 110%.

No one can know anything about the potential or how it's being exploited. It's pure guess work.

[hardingfv32]

This is most propably still THE area for further development and performance gain. If not, the teams wouldn't waste that much ressources for it.

Could it be the most probable area just because it is easy for you to see?

Brian

[GrizzleBoy]

We have no idea if anyone can actually gain any effect from the exhaust in regard to sealing the diffuser.

This is most propably still THE area for further development and performance gain. If not, the teams wouldn't waste that much ressources for it. Are you supposing all the teams hired idiots as engineers? Your writing seems to imply this...

Does this mean Mercedes and Lotus, both of which have proven their pace on more than one occasion have idiot engineers because they are not using their exhaust plumes to seal their diffusers?

[amouzouris]

or maybe lotus and merc just realized as soon as the others did (and that would be early in the stages of development)..that it would be hard to have the gains from the exhausts...so they chose to develop the rest of the car more...so they had equal gains...

[PlatinumZealot]

The blown diffuser gains are very small this year.

Only a physical maximum of 20% of the downforce of a strake blown diffuser of 2011. - James Allison. And guess what... That is only PEAK values. Without any throttle overrun it's only applied to small part of the lap so you are looking at less than 0.2 seconds per lap.

I think it is definitely more expensive to faff about getting 0.2 seconds per lap from a difficult to understand quasi-blown diffuser, than to get a straight forwad 0.2 seconds from the tyres, wings and setup. My opinion at least.

[WhiteBlue]

0.2 s seems a lot when the top 11 are covered by 0.3. That may not be the case all the time this year but its happened already.

[Jef Patat]

The blown diffuser gains are very small this year.

Only a physical maximum of 20% of the downforce of a strake blown diffuser of 2011. - James Allison. And guess what... That is only PEAK values. Without any throttle overrun it's only applied to small part of the lap so you are looking at less than 0.2 seconds per lap.

I think it is definitely more expensive to faff about getting 0.2 seconds per lap from a difficult to understand quasi-blown diffuser, than to get a straight forwad 0.2 seconds from the tyres, wings and setup. My opinion at least.

How much of this is actually 'a fact'? This is an estimate of a team that is not trying to use the exhaust plume the way McLaren or Red Bull are.

[raymondu999]

RB Exhaust comparison; Malaysia to China

[img]http://img14.imageshack.us/img14/3997/r ... n1.jpg[img]

I think Mark's Chinese GP solution is a little different than it was in Malaysia.

Is the Australia spec and China spec the same? The exhaust exit seems a bit more rounded and more refined.

Re the Mark Hughes article, I'm not biting. With off-throttle mapping last year, then the disparity of high speed understeer/low speed oversteer will be none to minimal. If the off throttle is anywhere from 0 (no such mapping) to a partially off-throttle-blown (less than 100% exhaust gas output) then the disparity will be proportional. The low speed oversteer vs high speed understeer character will have more disprity than they do now, if no mapping is done.

[dren]

or maybe lotus and merc just realized as soon as the others did (and that would be early in the stages of development)..that it would be hard to have the gains from the exhausts...so they chose to develop the rest of the car more...so they had equal gains...

The Red Bull and Mclaren both designed cars around the EBD last year. They both have evolutions of their 2011 cars. It makes sense for these two teams to try and recover as much of the EBD effect as they can. The other teams who did not benefit as much from the EBD may not see the need. This looks to be the case with Lotus and Mercedes.

[Crucial_Xtreme]

Bahrain brake detail

right click>view image

[marcush.]

I think Neweys team got a bit distracted by the Sauber,believing that solution is the golden path to claim back the diffuser losses they experienced with the new regs.
Honestly speaking ,a clampdown on regs is what it is :the door is closed and now they are blowing through the key hole so to speak...what a waste of recources ttrying to extract something useful from an area which is basically fixed.Other teams -like Williams have set their sights on grey areas like Brakeducts...

[CmdrVOODOO]

I think Neweys team got a bit distracted by the Sauber,believing that solution is the golden path to claim back the diffuser losses they experienced with the new regs.
Honestly speaking ,a clampdown on regs is what it is :the door is closed and now they are blowing through the key hole so to speak...what a waste of recources ttrying to extract something useful from an area which is basically fixed.Other teams -like Williams have set their sights on grey areas like Brakeducts...

The other part of this is even if they were to get the exhaust gasses to go exactly where they went last year, they still can't blow the diffuser off throttle (entering a corner) so it's never going to be as effective as it was last year. So yes, I agree, there seems to be a lot of wasted resources on this!

[Henning]

Bahrain brake detail

right click>view image

[img]http://www.formula1.com/wi/0x0/sutton/2 ... 65.jpg[img]

That wheel-nut looks rather worn. I presume it's just one they use for working in the garage to attach those solid discs for geometry testing etc.

[beelsebob]

The air filters on the break ducts look --- too... Not holding up to the sand too well?

[Crucial_Xtreme]

Not the best picture but you can see an aero measurement device inside the rear tyre

Right click> view image