Daryl Walford wrote:
> veritas wrote:
>> Daryl Walford wrote:
>>> I went to a car show (http://showandrally.com.au/)
at Bacchus Marsh
>>> this morning, lots of nice cars including 3 GT40's, I recognized one
>>> of the GT40 owners as a Clubman owner so I asked if I could sit in
>>> his car and he said yes:-)
>>> He also offered me a drive which wasn't possible in the middle of a
>>> car show so he said next time I see him he will let me drive it:-)
>>> Bastard of a thing to get into but comfortable when you do, don't
>>> know how a tall person could get in it though, I'm 5'6" and my head
>>> was touching the roof.
>>> Apparently its getting a major brake upgrade soon as he has trouble
>>> stopping quickly from 250kph on the race track.
>>> On the track he doesn't use 6th (Audi box) because he can do over
>>> 250kph in 5th:-)
>>
>>
>> Just disconnecting to head off into another direction for the moment:
>>
>> Picking up on your 5th gear (and not needing 6th) comment: I know FA
>> about the subject car, so having declared that, I believe that there
>> have been a number of cars, over the course of history, that will
>> reach a higher speed in it's penultimate gear rather than in it's
>> ultimate (top) gear. I understand how and why - but rather odd,
>> never-the-less.
>>
>
> Quite possible, I'd imagine 6th would be more for cruising, if it did
> wind out in 6th it would be at +300kph and you would need a lot of road
> to get there and stop, most race tracks don't have long enough straights
> to get up to 300kph without fitting a big horsepower race engine which
> wouldn't be much good in a road registered car.
Yep - also in many, the RPM/HP/torque combination (by design) simply
does not have the HP or Torque to red-line the tacho (in top gear) but
the next lower gear does. When I worked for IHC (truck assemply
division) Canada, (for 90 days) they mistakenly installed the wrong
diffs in a number of them. The ratios theoretically would give them a
top speed of 96 MPH. Of course there was not enough HP available, even
if the owners were happy with that. The had to put new diffs in about
20 prime movers.
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