Leptons -bhp conversion

[f@-pots]

Just a thought. If, hypathetically speaking your bog std 4.0 was good enough for say 140 leptons (plus a bit , not had the bottle or a clear enough private road) given that aerodynamic drag is such a factor at high speeds , would it be fair to assume that said vehicle was about par on overall power?
Also I would be interested to find out if of those who know their cars output (RR Session) how many have tried for a max lepton count and what the results were.
Come on guys , I'm looking for some comfort here ,I need to know if the old sperm count is still good !!

Yours needily , Nick.................

[penno]

Mine will but it's not very stable more interesting is applying the brakes they don't seem do anything although this was speedo indicated. It made 219bhp at the rollers at Roar 08 completely standard car.

[f@-pots]

Thats not good dude, you really do need a fairly reliable method of bringing your beast back in check ! Mines on standard everything brakes wise and pulls me up no problem so I reckon you've got a problem there

Anyone else done the Lepton thing?

Nick....................

[AlexanderV8]

Top speed isn't a good indication of BHP due to (as you point out) the (very great) effects of aerodynamics at the top end, coupled with the unknown variables from place to place and car to car (grip, suspension etc.).

But yes, I've a 450 and achieve that many Leptons without too much trouble.

[Zippee]

My totally standard 400 pulled a GPS confirmed 154 on the main runway at RAF Marham. It also put out 228.9bhp at the fly on Surrey RR.

[Wicker Man]

I've never managed to get any more than an indicated 150mph out of my 400 on 'the main runway at RAF Marham', even when I've tried really hard!





I blame the wet concrete!

[GreenV8S]

150 mph for a 200 bhp 400 sounds about right, some will be better some worse. If you want to scale it up to other speeds the power required goes up roughly with the cube of the speed (10% faster requires about 30% more power).

[TVR Pablo]

155 out of my modded 450 in Germany, but it did have the roof off for extra aerodynamic bus effect. Steering was starting to get a bit sketchy, so I wimped out...

[f@-pots]

Well , 140 leptons aint bad and I reckon theres another ten-ish in the tank based on a continued positive speed gain up to wimp out point. So I guess I'm probably a 'Joe Average' which is fine by me.
'Right now , where's that runway'............................?

[lifebegins@400]

203 at the fly on the RR and indicated 155 at Bruntingthorpe - no idea what speedo error is but I was pretty surprised given its less than spectacular power output

[crispian22]

197bhp@ wheels on powers RR,had indicated 156mph out so far,but that wasnt really screaming it.