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Re: Renault V6 Power Unit
Posted: 18 Oct 2017, 23:07
by PlatinumZealot
mclaren111 wrote: ↑18 Oct 2017, 13:40
Not an Engineer. Please explain in layman terms. Thx
PS is horsepower in German. The unit of measure is only slightly bigger than horsepower but you may approximate 1 horsepower to be 1 PS if you like.
Re: Renault V6 Power Unit
Posted: 18 Oct 2017, 23:20
by Tommy Cookers
the PS 'unit of measure' is smaller than the horsepower
1 PS is c. 736 W
1 hp is c. 746 W
1.01387 PS is 1 hp
we might imagine a 1000 hp Cosworth engine has the same power as a 1013.87 PS Mercedes engine
though we might imagine that Mercedes etc tell us they have eg 850 hp when they mean 850 PS
http://www.statman.info/conversions/power.html
Re: Renault V6 Power Unit
Posted: 19 Oct 2017, 11:17
by Craigy
Tommy Cookers wrote: ↑18 Oct 2017, 23:20
the PS 'unit of measure' is smaller than the horsepower
1 PS is c. 736 W
1 hp is c. 746 W
1.01387 PS is 1 hp
we might imagine a 1000 hp Cosworth engine has the same power as a 1013.87 PS Mercedes engine
though we might imagine that Mercedes etc tell us they have eg 850 hp when they mean 850 PS
http://www.statman.info/conversions/power.html
Probably also worth remembering that in F1 terms, Cosworth and Mercedes-Benz High Performance Powertrain are both based in England (Northamptonshire) around in fact, are only around 8 miles from each other. A 20 minute car ride. It's not by accident - Mario Illien was a Cosworth employee, and when he wanted to set up his own company, Ilmor, he chose a base somewhere close enough to permit Cosworth staff to move companies without needing to move house. It's also close enough to the Cosworth suppliers to make it basically the same market in terms of logistics.
Map ->
https://goo.gl/maps/A9w1dbPHz5R2
Given where they are, it's consequently pretty unlikely that one would be reporting BHP, and one PS based on percieved "German-ness" or "Britishness".
I'd be pretty surprised if either didn't work internally in SI units like kW for development work anyway, these days.
Re: Renault V6 Power Unit
Posted: 19 Oct 2017, 14:03
by Tommy Cookers
before British dominance over mainland European racers came we Brits (I guess) didn't correct our power measurements to sea level dry air conditions
being a low country with lowish temperatures, so lowish and consistent absolute humidity, measured hp was only c. 2.5% lower than a 'corrected' value
the correction is anyway bogus as engines never run on dry air
adding their bogus correction % to the 1.4% difference between British hp and European may explain why ......
Ferrari etc later talked of 'Coventry horsepower' ie as the reason those silly old Nortons, Jaguars, Climaxes etc beat Italian machines claiming more power
Re: Renault V6 Power Unit
Posted: 20 Oct 2017, 00:12
by NL_Fer
Verstappen is taking a new ICE this weekend. Would be the latest spec, what power are we talking about?
Re: Renault V6 Power Unit
Posted: 20 Oct 2017, 08:43
by baybars
NL_Fer wrote: ↑20 Oct 2017, 00:12
Verstappen is taking a new ICE this weekend. Would be the latest spec, what power are we talking about?
I found a news on Amus about it
As I understand upgrade brings more power and improved reliability.
Abiteboul said that Sportchef Cyril Abiteboul confirms: "The modifications bring us more power in qualification and in the race . And they improve reliability. It is a nice step, which already includes solutions for our next year's engine. "In addition, new BP / Castrol petrol comes. These are a few more PS. The progress with regard to roundness is estimated to be one to one and one-half tenths.
https://www.auto-motor-und-sport.de/for ... 67739.html
Re: Renault V6 Power Unit
Posted: 20 Oct 2017, 11:54
by Jejking
baybars wrote: ↑20 Oct 2017, 08:43
NL_Fer wrote: ↑20 Oct 2017, 00:12
Verstappen is taking a new ICE this weekend. Would be the latest spec, what power are we talking about?
I found a news on Amus about it
As I understand upgrade brings more power and improved reliability.
Abiteboul said that Sportchef Cyril Abiteboul confirms: "The modifications bring us more power in qualification and in the race . And they improve reliability. It is a nice step, which already includes solutions for our next year's engine. "In addition, new BP / Castrol petrol comes. These are a few more PS. The progress with regard to roundness is estimated to be one to one and one-half tenths.
https://www.auto-motor-und-sport.de/for ... 67739.html
What does the term 'roundness' mean? Is it the overall laptime which would come down by 0.1-0.15s / lap?
Re: Renault V6 Power Unit
Posted: 20 Oct 2017, 16:11
by baybars
Jejking wrote: ↑20 Oct 2017, 11:54
baybars wrote: ↑20 Oct 2017, 08:43
NL_Fer wrote: ↑20 Oct 2017, 00:12
Verstappen is taking a new ICE this weekend. Would be the latest spec, what power are we talking about?
I found a news on Amus about it
As I understand upgrade brings more power and improved reliability.
Abiteboul said that Sportchef Cyril Abiteboul confirms: "The modifications bring us more power in qualification and in the race . And they improve reliability. It is a nice step, which already includes solutions for our next year's engine. "In addition, new BP / Castrol petrol comes. These are a few more PS. The progress with regard to roundness is estimated to be one to one and one-half tenths.
https://www.auto-motor-und-sport.de/for ... 67739.html
What does the term 'roundness' mean? Is it the overall laptime which would come down by 0.1-0.15s / lap?
I think Lap time will be improve between 0.1 and 0.15
Re: Renault V6 Power Unit
Posted: 20 Oct 2017, 16:12
by baybars
baybars wrote: ↑20 Oct 2017, 16:11
Jejking wrote: ↑20 Oct 2017, 11:54
baybars wrote: ↑20 Oct 2017, 08:43
I found a news on Amus about it
As I understand upgrade brings more power and improved reliability.
Abiteboul said that Sportchef Cyril Abiteboul confirms: "The modifications bring us more power in qualification and in the race . And they improve reliability. It is a nice step, which already includes solutions for our next year's engine. "In addition, new BP / Castrol petrol comes. These are a few more PS. The progress with regard to roundness is estimated to be one to one and one-half tenths.
https://www.auto-motor-und-sport.de/for ... 67739.html
What does the term 'roundness' mean? Is it the overall laptime which would come down by 0.1-0.15s / lap?
I think Lap time will be improve between 0.1 and 0.15 sec per lap
Re: Renault V6 Power Unit
Posted: 24 Oct 2017, 14:39
by Craigy
Jejking wrote: ↑20 Oct 2017, 11:54
What does the term 'roundness' mean? Is it the overall laptime which would come down by 0.1-0.15s / lap?
It's a mistranslation. He's talking about lapping. In French, lap is "tour".
It's the same root as the word "turn" in English. It means to "go round".
That's why "lapping" has been incorrectly robo-translated into "roundness".
Re: Renault V6 Power Unit
Posted: 27 Oct 2017, 00:10
by Jejking
Craigy wrote: ↑24 Oct 2017, 14:39
Jejking wrote: ↑20 Oct 2017, 11:54
What does the term 'roundness' mean? Is it the overall laptime which would come down by 0.1-0.15s / lap?
It's a mistranslation. He's talking about lapping. In French, lap is "tour".
It's the same root as the word "turn" in English. It means to "go round".
That's why "lapping" has been incorrectly robo-translated into "roundness".
Ah thank you, I didn't take the translation itself into account there!
Re: Renault V6 Power Unit
Posted: 28 Oct 2017, 20:37
by FW17
Is there 1 sec between the old and new Renault engines?
Ricardo is a long way behind.
Re: Renault V6 Power Unit
Posted: 28 Oct 2017, 20:40
by JonoNic
FW17 wrote:Is there 1 sec between the old and new Renault engines?
Ricardo is a long way behind.
Horner mentioned yellow flags and traffic on Sky.
Sent from my SM-A700F using Tapatalk
Re: Renault V6 Power Unit
Posted: 28 Oct 2017, 20:43
by FW17
Let us see what it is at end of Q3
There looks to be a significant improvement, definitely closer to Ferrari now.
Re: Renault V6 Power Unit
Posted: 29 Oct 2017, 23:41
by lio007
WOW...that was a pretty expensive weekend in terms of broken PU-parts.
Any guesses why Renault had so many damages? Even Honda has been better.