Underpowered or Overpowered

[gazcaddy]

Generally do you find the Renaultsport models to generate more BHP than quoted the same or less?

 

[peterh2]

Less

 

[McBunny]

less less less these aint vag cars

 

[DeanRSi]

less

 

[Snufty]

well the 172 and 182 do not mean the amount of bhp that they produce it means the amount of PS that they produce and i think that the 172 in BHP is abou 168

 

[DeanRSi]

at the last 306 RR day the operators were surprised that the 306s were making pretty bang on stated manufactures figures for standard cars. they said that every 172 etc theyve had in has been well down on the quoted power figures.

 

[Griff]

PS IS BHP, albeit the Germans take on it.

172 PferdeStarke is 169.6 BHP

 

[McBunny]

so in that case ps isnt bhp as its a different measure centigrade and farenhite they measure the same thing but do it differently

 

[RobHardyUK]

engine edvantages down essex, has seen a std 182 putting out 185. most are 180 - 182 tho.

 

[McBunny]

never beleive rollers they lie to you

 

[gazcaddy]

if you dont believe rollers then you have to believe the manufacturers claims

 

[McBunny]

no you dont

trust an engine dyno with a rr there are far too many differences and each rr is different so you will never get a spot on figure

 

[ChrisO182]

down to calibration and what % is used to caculate transmition losss.

Also which gear is used cos you really need a near 1:1 ratio or something dont you?

 

[Mitchy]

Ive heard of 172s getting as low as 165bhp

 

[McBunny]

mine was tested at 150 ish on one then 183 on another difference exhaust and decat

 

[edde]

They seem to always make less power.

Only diesels make more than claimed.

 

[madman1981]

less way less lol

seat made 16% more which was good

 

[172beast]

Ill say it again even though everyone else has said it, less lol

Who cares if they do, still go like sh*t off a shovel

 

[Mondial172]

Most make less I reckon. Sometimes youll find a good one with bang on power but most of the time I reckon its less

 

[missy]

sorry for being slow on the uptake on this.

as i understand it, theres 2 different ways of measuring bhp. one is direct from the engine, the other is through the tyres. renault clearly do it directly through the engine, while peugeot appear to do it in reality terms. the bhp on a mini for example is done as an average.

may have got the wrong end of the stick, but that seems to be how it works.

 

[andrew_172]

Quote: Originally posted by missy on 16 November 2004


sorry for being slow on the uptake on this.

as i understand it, theres 2 different ways of measuring bhp. one is direct from the engine, the other is through the tyres. renault clearly do it directly through the engine, while peugeot appear to do it in reality terms. the bhp on a mini for example is done as an average.

may have got the wrong end of the stick, but that seems to be how it works.





Spot on. A LOT of bhp claims are at the engine. Thats why when talking tuning the quote will often be written as at the wheels meaning the actual output to the road. Most likely the engine output itself would be higher but lost through transmission etc.

 

[Liquidcool]

Rolling Road results



[Edited by Liquidcool on 17 November 2004 at 8:46am]

Removed link, as this report is members area only. Unless a Mod wants to allow this report to be on here?

 

[FullThrottle182]

Quote: Originally posted by dogmaul on 13 November 2004

so in that case ps isnt bhp as its a different measure centigrade and farenhite they measure the same thing but do it differently

lol Its the same, PS,PK,BHP its ll about the horses.

On-topic, do you think you really going to feel the difference between 168 and 172 BHP? I didnt think so. but its def less. My 120hp Alfa had 113 hp tested.

 

[geordiepaul]

Mine made 170bhp at the flywheel which is spot on the manufacturers claims. Cant remember the ATW figure though.

 

[RobHardyUK]

fly cant be accuratly mesasured anyway - its power at the wheels people should use more often