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Offline Marc_250  
#1 Posted : 17 August 2015 20:46:34(UTC)
Marc_250


Posts: 5,115

Honda F1 project boss promising the updated Honda PU to be a match for Ferrari. Either he has lost the plot or it's the biggest single in-season upgrade ever. I'm going with the former!

Rumours have Merc agreeing to supply RedBull as early as 2016 which will only happen if Renault purchase their own team (Lotus) else the Renault partnership continues in 16.

I'm going with RedBull as the surprise performance although Merc should walk it.
Offline foxspeed  
#2 Posted : 17 August 2015 20:49:11(UTC)
foxspeed


Posts: 21,585
Location: retour dans la bulle

I think merc can turn up the wick when they want and disappear in the distance Blush

sounds like silly season is upon us LOL
Offline Jeremy RUK  
#3 Posted : 20 August 2015 19:19:24(UTC)
Jeremy


Posts: 7,618

Renaultsport F1 preview;

RÉMI TAFFIN, DIRECTOR OF OPERATIONS
We’ve been extremely busy in the four weeks since the Hungarian Grand Prix. In contrast to the teams, who had to shut their factories, we’ve been operating throughout the summer break to continue our development programme. The dynos have run as usual and we’ve conducted some notable performance work for the rest of the season and also concepts for next year. The results are good.

In parallel we have been preparing for Spa, which presents the hardest test of the year for the power units. The wide open throttle time is as high as Monza, but it’s the corners, changes of altitude and length that increase the difficulty.

We are realistic about the challenge facing us and the strength of the opposition at this point in time. The double podium in Hungary – and our win last year in Spa – show anything is possible so we go there in this frame of mind: concentrate on our job, do the best we can and take advantage of the circumstances as they come about.

RENAULT 2015 FAST FACTS


Weather is always a factor in Spa, but rain can cause issues for the contemporary power units, which are loaded with electrical systems. If water enters, these systems could short out. F1 cars are now equipped with military spec wiring but special care will be taken to insulate the systems against the humidity, with ducts fitted to divert rain away from the systems in case of torrential rain. It’s a useful precaution as it has rained in Spa every year since 2007!

Eau Rouge is the most famous turn on the Spa-Francorchamps circuit. It is technically more of a left hand kink in the track as it rises from La Source and crosses the Eau Rouge stream. A blind summit and a bump on the exit make it a fiendish challenge to get right. Eau Rouge is now taken flat out at 310kph but it took until the mid-point of the V8 era for cars to have the right power-to-grip ratio to floor it through the bend. At the start of the V8s and all through the V10s drivers would lift off to scrub some speed for the entry and apex.

While qualifying is significant in every race, the length of the circuit and the multiple overtaking opportunities do not place an over-arching importance on it in Spa. In fact only three polesitters have taken victory in the last ten years.

The Renault turbo made its Spa debut in 1978. The challenges of Spa have always caused a race of attrition and it took until 1980 for Rene Arnoux to score Renault’s first finish. Alain Prost won from pole position in 1983 with Derek Warwick second in 1984. Ayrton Senna (Lotus-Renault) took the win in 1985 and came second in 1986. In the normally aspirated era, Damon Hill (Williams) and Michael Schumacher (Benetton) gave Renault consecutive wins from 1993 to 1995 before Sebastian Vettel took wins for Red Bull in 2011 and 2013. Daniel Ricciardo took the third win for the Renault Energy F1 power unit in 2014.

POWER UNIT DETAILS
ICE
Spa is the hardest circuit of the year for the Power Units. Over 65% of the 7km track is spent flat out, which translates as around 73secs per lap, the longest accumulative wide open throttle time of the year.

The first period of sustained throttle is the climb from the La Source hairpin to the chicane at Les Combes. It takes around 25secs with the driver flat on the throttle throughout. The distance is only slighter shorter than a runway at Charles de Gaulle airport.

Almost all of sector three is taken flat out. From Stavelot through Blanchimont to the Bus Stop chicane, the Renault Energy F1 will be at wide open throttle for 20secs. The remainder of the throttle time comes from the bursts of power between corners.

The track’s layout can be likened to a rollercoaster circuit where parts are loaded and unloaded in quick succession. The track drops over 40m from La Source before climbing over 80m back to Les Combes, equivalent to a gradient of 1 in 4. The descent compresses the internals but going over the crest of the hill, the vertical force is suddenly lifted and the parts unloaded, with the vertical forces switching to -3g. It can be equated to the feeling on a rollercoaster drop when your body feels compressed and pushed down into the seat but weightless when you go over a bump.

The altitude of Spa also affects fuel consumption. At its highest point the circuit is around 500m and the air is approximately 5% less oxygen rich than at sea level. With less oxygen going into the engine, around 1% less fuel is burned at Les Combes than at La Source.

TURBOCHARGER
Turbo response in Spa is one of the critical performance factors. The majority of slow corners, for example the Bus Stop chicane, Les Combes and La Source are followed by a burst of throttle. Engineers will therefore look specifically at the engine maps to bring the delay in response as close to zero as possible. In fact, the time lapse between the driver putting his foot on the throttle and the turbo kicking in is now around 0.2s

The turbo will be rotating at close to its maximum to keep pace with the high rotational speeds of the ICE. The altitude will further increase rpm. At its most extreme the turbo will be spinning at more than 95,000rpm or over 1,500 revs per second!

MGU-K
Spa is one of the most demanding tracks on the MGU-K. Each of the braking points comes after a long burst of power so the energy dissipated through the brakes is enormous.

The best opportunity for the MGU-K to recover energy is the Bus Stop chicane, which the driver approaches at over 300kph and brakes down to just 75kph.

At La Source, car speeds drop to just 70kph and engine revs to around 8,700rpm. The combination of MGU-K, ICE and brakes need to dissipate 2MJ of energy during this braking event – front brake temperatures will rise by more than 300°C to achieve this, even though the MGU-K is at the full recovery allowed by the regulations.

MGU-H
Sector two has the majority of corners and is therefore the least power sensitive part of the track. This pushes us to recover as much energy as possible on the MGU-H whilst maintaining good turbo response.

High-speed flowing corners such as Pouhon and Fagnes are the best opportunities and will feed the recovered energy to the MGU-K and ICE on the next period of throttle through Blanchimont.
Offline g7egt  
#4 Posted : 20 August 2015 20:33:38(UTC)
g7egt


Posts: 1,622
Location: MK land of excessive tyre wear

Thanks can't wait, let's hope the gap to the Merc's closes
Offline Georgeski  
#5 Posted : 20 August 2015 20:35:45(UTC)
Georgeski


Posts: 4,553

Originally Posted by: g7egt Go to Quoted Post
Thanks can't wait, let's hope the gap to the Merc's closes


It'll be the only race I watch this year.
Offline -Gazeratti-  
#6 Posted : 21 August 2015 09:02:42(UTC)
-Gazeratti-


Posts: 1,406
Location: www.renaultsportclub.co.uk

I still state that if you only go to one F1 race this should be the one.

I was there in 2008. Brilliant track

UserPostedImage

UserPostedImage

UserPostedImage

UserPostedImage

Edited by user 21 August 2015 09:13:12(UTC)  | Reason: Not specified

Offline Georgeski  
#7 Posted : 21 August 2015 09:08:48(UTC)
Georgeski


Posts: 4,553

Agree - not a huge fan of F1 anymore, but it is a brilliant track to watch it at.
Offline fastdave  
#8 Posted : 21 August 2015 14:37:18(UTC)
fastdave


Posts: 1,324
Location: Marchwood

Looks like business as usual after the break.

Mercs out in front - Maldanado in the wall.
Offline foxspeed  
#9 Posted : 21 August 2015 17:31:01(UTC)
foxspeed


Posts: 21,585
Location: retour dans la bulle

Originally Posted by: fastdave Go to Quoted Post
Looks like business as usual after the break.

Mercs out in front - Maldanado in the wall.


LOL LOL crash-naldo
Offline -Gazeratti-  
#10 Posted : 21 August 2015 19:06:54(UTC)
-Gazeratti-


Posts: 1,406
Location: www.renaultsportclub.co.uk

Offline foxspeed  
#11 Posted : 21 August 2015 19:46:45(UTC)
foxspeed


Posts: 21,585
Location: retour dans la bulle

maclaren doing well....50 grid place penalties LOL LOL
User is suspended until 26/07/2046 21:23:17(UTC) Roblynn1977  
#12 Posted : 22 August 2015 16:46:40(UTC)
Roblynn1977


Posts: 5,657
Location: www.renaultsportclub.co.uk

1.5 seconds in front of the Williams. Everyone else might as well give up now.
Offline Marc_250  
#13 Posted : 22 August 2015 18:50:48(UTC)
Marc_250


Posts: 5,115

How much longer can McLaren live with this sort of performance. If it wasn't for DRS the car would be going slower at the end of the kemmel straight than the start. The PU is clearly worse than last years Ferrari engine in the Marussia/Manor.

Honda shouldn't have made the claims they did...at least Renault have just shut up and got on with it.

And it sounds increasing likely we're going to have Renault back in F1 as a works team..with RedBull taking the Merc PU in 16.
Offline foxspeed  
#14 Posted : 22 August 2015 19:15:46(UTC)
foxspeed


Posts: 21,585
Location: retour dans la bulle

Originally Posted by: foxspeed Go to Quoted Post
maclaren doing well....50 grid place penalties LOL LOL


sorry 105 grid penalty....they have to start on row 6 in austrialia Tongue
Offline Buffalo Girls  
#15 Posted : 22 August 2015 20:06:04(UTC)
Buffalo Girls


Posts: 1,815

Why would Mercedes sell their engine to Red Bull?
User is suspended until 26/07/2046 21:23:17(UTC) Roblynn1977  
#16 Posted : 22 August 2015 20:33:11(UTC)
Roblynn1977


Posts: 5,657
Location: www.renaultsportclub.co.uk

Originally Posted by: Buffalo Girls Go to Quoted Post
Why would Mercedes sell their engine to Red Bull?


Money!
Offline foxspeed  
#17 Posted : 22 August 2015 21:03:27(UTC)
foxspeed


Posts: 21,585
Location: retour dans la bulle

Originally Posted by: Buffalo Girls Go to Quoted Post
Why would Mercedes sell their engine to Red Bull?


customer engine...wont be the full monty spec they enjoy!
Offline dinn  
#18 Posted : 22 August 2015 21:52:56(UTC)
dinn


Posts: 1,193

Originally Posted by: foxspeed Go to Quoted Post
Originally Posted by: Buffalo Girls Go to Quoted Post
Why would Mercedes sell their engine to Red Bull?


customer engine...wont be the full monty spec they enjoy!


Do they enjoy? Wink
User is suspended until 26/07/2046 21:23:17(UTC) Roblynn1977  
#19 Posted : 22 August 2015 22:47:19(UTC)
Roblynn1977


Posts: 5,657
Location: www.renaultsportclub.co.uk

Originally Posted by: dinn Go to Quoted Post
Originally Posted by: foxspeed Go to Quoted Post
Originally Posted by: Buffalo Girls Go to Quoted Post
Why would Mercedes sell their engine to Red Bull?


customer engine...wont be the full monty spec they enjoy!


Do they enjoy? Wink


Not at the min
Offline AndyC77  
#20 Posted : 23 August 2015 09:22:11(UTC)
AndyC77


Posts: 180

It was said by the Mercedes engineers at the "workshop" back in the UK that the works team and customer engines are exactly the same spec, same configuration and opportunities. I suppose it's having the know how to unlock those opportunities!
Offline foxspeed  
#21 Posted : 23 August 2015 11:33:16(UTC)
foxspeed


Posts: 21,585
Location: retour dans la bulle

Originally Posted by: AndyC77 Go to Quoted Post
It was said by the Mercedes engineers at the "workshop" back in the UK that the works team and customer engines are exactly the same spec, same configuration and opportunities. I suppose it's having the know how to unlock those opportunities!


nuts and bolts maybe but the electronics or how its "mapped"...would you as a supplier give your "rivals"
an as like engine....I wouldn't and don't think merc would choose what they say publicly
Offline MikeWDY  
#22 Posted : 23 August 2015 14:37:20(UTC)
MikeWDY


Posts: 1,674
Location: At my wits end!!

Button is taking very defeatist and surely has made the decision not to stay.
Offline -Gazeratti-  
#23 Posted : 23 August 2015 15:16:31(UTC)
-Gazeratti-


Posts: 1,406
Location: www.renaultsportclub.co.uk

Rubbish them Renault engines can over take anything.
Offline foxspeed  
#24 Posted : 23 August 2015 17:04:05(UTC)
foxspeed


Posts: 21,585
Location: retour dans la bulle

Honda engine was well up there with the Ferraris LOL LOL LOL LOL

keep those swoards away from mr ari Blush

renualts weren't running any rear wing - which was the better set up
Offline g7egt  
#25 Posted : 23 August 2015 18:24:00(UTC)
g7egt


Posts: 1,622
Location: MK land of excessive tyre wear

Yes the small rear wing worked well, Williams mucked that up.
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