Red Bull RB8 Renault

[PhillipM]

It can also help low speed traction by spreading the torque pulses to allow the carcass to recover, that might very well be a small help with keeping the pirelli's warm without having to run excessive camber gain on the rear too.

[Huntresa]

http://totalf1.com/full_story/view/4213 ... ncia_race/

[Crucial_Xtreme]

http://totalf1.com/full_story/view/4213 ... ncia_race/

The regs mandate the suspension arms must have an inclination of 5°. The scrutineers closely checked(right angle) the RB8's rear suspension and it was on the very limit. It did pass but was at the maximum allowable. RB is pushing everything to the limit. How it should be in F1, IMHO.

[hardingfv32]

That is at low RPM/low throttle parts. Shutting down some cylinders means less pumping losses in the engine. That's the only reason I can think of.

I would think that you would need to open the 'all' the valves to reduce pumping losses.

Brian

[hardingfv32]

Pretty sure they're cutting the cylinders to control torque in said low speed turns/hairpins etc, a place where the RB has seemed to dominate in the past few years. I would suppose it helps on fuel consumption as well.

Of coarse we have been making note of the deceleration sound as different, but did anyone note the sound out of the corner beginning different? Would an engine accelerating on four cylinders sound different?

Brian

[.poz]

That is at low RPM/low throttle parts. Shutting down some cylinders means less pumping losses in the engine. That's the only reason I can think of.

I would think that you would need to open the 'all' the valves to reduce pumping losses.

Brian

What happen if you send a low amount of fuel and light the spark when the cylinder is at maximum expansion ? I think you get no torque but a lot of gas to blow the diffuser....

[PABLOEING]

Everypeople think that the new evolution in the RB8 is the new double floor......but the Lotus was extremly fast in valencia like the RB8.......i think that the secret is in the engine.....Red bull show the double floor , this is not normal.If is a secret you can show this piece in the FP1.......The Renault engines is the master key.The FIA must do someting.

[Owen.C93]

That is at low RPM/low throttle parts. Shutting down some cylinders means less pumping losses in the engine. That's the only reason I can think of.

I would think that you would need to open the 'all' the valves to reduce pumping losses.

Brian

No the pumping losses are from a closed throttle that stops air entering the cylinder easily. Opening the valves would make a bit of a mess.

[Nando]

Everypeople think that the new evolution in the RB8 is the new double floor......but the Lotus was extremly fast in valencia like the RB8.......i think that the secret is in the engine.....Red bull show the double floor , this is not normal.If is a secret you can show this piece in the FP1.......The Renault engines is the master key.The FIA must do someting.

It was never really that fast.

I remember when Grosjean finally came by Hamilton. On lap 7 or 8 i believe. 8 seconds down to Vettel.

After some more laps Vettel had extended his lead to around twice that, he was clearly in a class of his own in Valencia.

[Chuckjr]

http://totalf1.com/full_story/view/4213 ... ncia_race/

The regs mandate the suspension arms must have an inclination of 5°. The scrutineers closely checked(right angle) the RB8's rear suspension and it was on the very limit. It did pass but was at the maximum allowable. RB is pushing everything to the limit. How it should be in F1, IMHO.

Wow that pic in that article--that upper wishbone looks more than 5 degrees. What are the advantages, mechanically and aerodynamically speaking, to running such a sharp upward sloped wishbone?

[Crucial_Xtreme]

Wow that pic in that article--that upper wishbone looks more than 5 degrees. What are the advantages, mechanically and aerodynamically speaking, to running such a sharp upward sloped wishbone?

It changes the camber and how they're able to adjust it and also allowed them to tweak the driveshaft and it's cowling for aero purposes.

Maybe X or JT can post about the new wishbone and it's advantages as suspension isn't high on my list of knowledge.

[R_Redding]

They said on one of the Radio 5 live sessions that the strange Renault engine noise was RBs way of producing neutral torque from the engine.

The advantage being that when the driver takes his foor of the peddle , the engine doesnt suddenly go into negative torque through engine braking...Which can upset the balance between Kers harvesting and braking... leading to an unstable rear end and tire degredation.

Rob

[Crucial_Xtreme]

Gary Anderson's analysis of the new RB8 tunnel


via autosport

[Owen.C93]

So can fuel still be ignited outside the cylinder at all anymore? I guess if you used 4cyl at 20% but stopping the spark in the other 4cyl you could get exhaust gas from the 4 active cylinders and then ignite the fuel from the other 4 in the exhaust which should give more gas but less power than 8cyl at 10% throttle. (Simplified of course). That way the throttle is still fully controlled by the driver. I forget what rules prohibit this though (I'm sure there was something).

[hardingfv32]

But.... with the importance of the exhaust's flow benefit greatly reduced, what does the compromise/trade-off with the requirement of carrying addition fuel weight look like?

Brian