SV throttle roll-on times.

I heard on a recent edition of Top Gear that the new Porsche 911 Turbo can accelerate from 40mph to 60mph in 1 second. Seems ludicrous to me and hard to actually imagine, but it got me thinking. Since that's the type of acceleration we use everyday for overtaking, I thought I'd look at the times claimed for the SV650. I found this on an old forum:

"...published in May 1999 Cycle World:
1/4 mi. 11.85 sec. @ 110.17mph.
0-30 mph 1.34 sec.
0-60 mph 3.20 sec.
0-90 mph 6.79 sec.
0-100 mph 8.76 sec.
40-60 mph 3.27 sec.
60-80 mph 3.90 sec.
Measured top speed 128 mph"

For a start, it doesn't seem logical. How can it take longer for the bike to accelerate from 40-60mph than from 0-60mph? Surely if you have it in the right gear (at a guess, second gear), lean forward and whack the throttle open, it's going to accelerate just as quick as it would during a standing start.

Might be a bit dodgy if you start to overtake and a Porsche thinks:
"Oh no you don't!" and steps on the gas just as you go by.
No time to react if they can do it in 1 second.

What are your thoughts?

[yorkie_chris]

I think that acceleration might be measured in top gear.

Top gear roll ons with definitely be slower than optimum gear roll ons.

[STRAMASHER]

They are comedy Yank performance figures.

No bearing in Blighty...... well except it shows how slow/fat we Brits are.

[L3nny]

In my very un-scientific test of counting one thousand two thousand etc I timed my blade from 60-100 in top and it took 6 seconds, but that was uphill.

HTH

Originally Posted by Scoobs

Top gear roll ons with definitely be slower than optimum gear roll ons.

So d'ya reckon the Porsche's 1 second 40-60 would be in the optimum gear then? They can't mean top gear.

One of the reasons the 0-60 is over 3 seconds is that you have to shift up to second to hit 60 on the SV. Mine hits the limiter at just under 50 I think.

Originally Posted by Ijanric

So d'ya reckon the Porsche's 1 second 40-60 would be in the optimum gear then? They can't mean top gear.

More than likely. Optimum gear, optimum revs (torque window).

Originally Posted by Ijanric

One of the reasons the 0-60 is over 3 seconds is that you have to shift up to second to hit 60 on the SV. Mine hits the limiter at just under 50 I think.

Getting a bike under three seconds is pretty difficult full stop. I don't think my bike would manage it and that does 98 in first, so no need to change gear.

98 in first is pretty sick! The gear you creep 'round car parks in.