How much quicker than II Zero is....
Discussion
II Zero:
420bhp
1200kilos
Boss:
500bhp(?)
1200kilos(?)
I hate to say this, but I reckon II Zero is the quicker car except for top end straight line stuff, I honestly cant imagine how difficult it must be to get 500bhp down without serious traction issues. Bet its f'kin good fun trying to master it though.
420bhp
1200kilos
Boss:
500bhp(?)
1200kilos(?)
I hate to say this, but I reckon II Zero is the quicker car except for top end straight line stuff, I honestly cant imagine how difficult it must be to get 500bhp down without serious traction issues. Bet its f'kin good fun trying to master it though.
Guillotine said:
the BossCerbera?
II Zero seemed pretty damn quick to me.
Great balance
Great power (350-400 I guess?)
Good revs
So...how much quicker is the Boss? It don't come out much!
(Genuine question BTW)
II Zero seemed pretty damn quick to me.
Great balance
Great power (350-400 I guess?)
Good revs
So...how much quicker is the Boss? It don't come out much!
(Genuine question BTW)
II ZERO is now a pukka 420bhp car (tad more on a good day). I piled miles on the Boss in the first two years (24,000 miles), compared with an average of 5,000/year in II ZERO. The Boss was "out" all the time in 2005 and 2006. It's now "resting" while I refresh the motor.
Point to point I like II ZERO because it's predictable, wet or dry. I'm not sure how much of the confidence is power related and how much is familiarity (9 years of it) or seat of the pants difference - it's got the old style seats in it.
There's *something* about my old 4.5. It is the car that started my love affair with Cerberas and I still get a buzz from driving it after all these years. Fittingly, perhaps, I picked it up on Valentines Day 1998. I've had so many adventures in the 4.5 - when I was racing in the Tuscan Challenge I used to drive to and from the circuits for testing, qualifiying and race days in it rather than stay in hotels. Watching the sun rise on empty roads, cruising at improbable speeds... Calais to Le Mans on the N roads in 3 hours 20 mins...
The Boss IS faster but its power/torque advantage is only available in gear. The gearing is the same in both cars, gearchanges take the same amount of time, they both run the same tyres. The factory-built "Cerbera Jota" doesn't need to be - and can't be - HUGELY quicker around a lap or, say, 0-100 mainly because the standard cars are so bloody quick already. It's a diminishing returns game. Was the Boss worth it? You bet! Don't underestimate the subjective matter of HOW it does its thing. 40-140 in 4th is epic - crushing a 100mph increment in a single gear is a premier league supercar trick. The Boss is a special car, different enough in character to the 4.5 to justify running the pair of them.
jeremyc said:
what is the real benefit of this in our car if it can be fitted and how much does it cost?
tvr_Edd said:
jeremyc said:
what is the real benefit of this in our car if it can be fitted and how much does it cost?
You can subtract the gearshift times (typically 0.5 - 0.75 seconds) from any sprint time eg 0-60, 0-100, 0-150 and subtract the shift times from lap times. The shifts are perfectly smooth and don't break traction. So the main benefit is FASTER.
(Driveline life, fuel efficiency are other fringe benefits.) To put it into perspective, it was calculated that if only Michael Schumacher was given ZeroShift at Monaco, the lap time advantage would be sufficient for half the grid to be outside the "107% rule" - i.e. not be able to qualify. All the F1 teams have since found their own ways of achieving a seamless shift. In Cerbera terms, taking 1 - 1.5 seconds from a 9 second 0-100 time = 7.5 - 8 seconds 0-100. II ZERO was used as the original development car for ZeroShift and for a short time I ran it without a clutch pedal (the clutch being operated by a button on the gearstick that, in production, would be controlled automatically by electronics). Three years ago the intention was to offer modified transmissions to the aftermarket (the Tremec T5 being one of the target transmissions) but, the Cerbera and (latterly) Mustangs, having made the point, the company is now negotiating directly with the vehicle manufacturers and AFAIK there won't be a ZeroShift T5 offered to the aftermarket.
I was a co-founder of ZeroShift but I am not involved anymore. There is plenty of information on its web site.
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