rec.autos.simulators

1. how much torque are these 800 HP engines making? at what RPM?

2. At what RPM are they making 800 HP, 9000? more?

3. What kind of rear wheel numbers (torque and HP) are they making on a
dynojet?

4.  Why does your friend always wear only yellow ? <G>

-John

what do you mean

"Don't touch that please, your primitive intellect wouldn't understand
alloys and compositions and,......things with molecular structures,....and
the....." - Ash

-John

Do they really make this much?  I always thought it was more like 600
or so.  If they really make 800, why are they so slow?  When the ALMS
went to Texas in 2001, not only did they come off the banking to use the
infield road course (meaning they couldn't sustain their high speeds all
the way around the oval, keeping speeds down on the oval part), but they
also put a chicane on the backstretch, to make them slow down again.  Even
so the LMP cars went over 180mph, which, AFAIK, is about as fast as the
NASCAR guys ever go.

For another comparison, look at Sears Point, 2001:

ALMS:

FASTEST QUALIFIERS:
LMP900:   # 1  Rinaldo Capello       1:21.745      110.979  mph
LMP675:   #57  John Graham           1:31.271      99.396  mph REC
GTS:      #26  Terry Borcheller      1:30.924      99.776  mph
GT:       #43  Dirk Mller           1:33.763      96.755  mph REC

FASTEST LAP:
LMP900:   # 1  Frank Biela            Lap #  32    1:23.000     109.301  mph
LMP675:   #57  Didier de Radigues     Lap #  89    1:29.389     101.489  mph REC
GTS:      #26  Terry Borcheller       Lap #   2    1:32.127      98.473  mph REC
GT:       #10  Bill Auberlen          Lap #   4    1:34.614      95.884  mph REC

NASCAR Winston Cup:

Pole:

Jeff Gordon #24 Chevrolet            1:36.82*        93.699 mph

* I calculated this assuming NASCAR uses the same 2.52 mile circuit as
the ALMS.  Time was only given in mph on the page where I found it.

This means that NASCAR's overall pole time was slower than the best *race*
lap (which in turn is slower than qualifying) done in GT, the slowest
of the ALMS' four categories.  The cars in GT only have something like
450hp, IIRC.  Yes, they're lighter, but geez, with nearly double the
horsepower, shouldn't the NASCAR cars have done a little better?

I guess I'm dubious about that 800hp number...

    Marc

And for the love of god, the last thing a NASCAR can do is run a roadcourse
well.  They're 3500lb pigs compared to a GT car; they've only got four gears
to play with and a live rear axle, as opposed to the GT cars running
sequential six-speeds, far less weight, and independent rear suspensions.

Milhouse

How much does a Le Mans Prototype weigh? -Slightly less than half of what a
stock car weighs is my guess (stock car = 3000lbs).

Pushing double the weight (and a greater frontal area) with the same
horsepower is bound to be slower, even if there's nothing much in the track
to impede your ultimate top speed.

Jan.
=---

"Don't touch that please, your primitive intellect wouldn't understand
alloys and compositions and,......things with molecular structures,....and
the....." - Ash

LMP900 minumum weigth = 900 kg.
LMP675 minumum weigth = 675 kg.
NASCAR minumum weigth = *1600* kg.

2001 LMP900 Audi R8 (911kg.*): 3.6L Twinturbo V8: Estimated output  610+ hp
and 516 lb-ft. of torque.

2001 MG Lola EX257 (690kg.*): 2.0L 4cyl inline tubocharded engine: Estimated
output 450+ bhp.

2001 Winston Cup Car - 5.7L Cast-iron / push-rod engine with 1 single 4
barrel carb: Estimated output 750+bhp and 505+ft/lb of torque...

Add to the fact that the LMP's have wider tires, lower CoG, more downforce
and most important of all... 6 speed sequential 'boxes - compared to WC's 4
speed H-pattern....

As for GTS....

The Chevrolet Corvette is much more powerfull then you think...  they use a
5.7l. pushrod engine too - only they got a block made of aluminium and
multipoint fuel injection.. :-)

According to GM's site that engine deliver around 620+bhp and 495+lb/ft. of
torque....  Add to the fact that the GTS also almost 900lbs / 500kg. lighter
that the WC-cars tipping the scales at 2510 lbs / 1138 kg.
Once again, the GTS got the option of using more gears (6) / closer ratios
wilch is good for accelleration.

Just look at your own figures; LMP 900 vs. GTS  -  almost identical power
outputs, yet the LMP900's miles faster due to less weight and more
downforce.

As the saying goes....  'power is nothing without control'!
--
ed_

LMP900 minumum weigth = 900 kg.
LMP675 minumum weigth = 675 kg.
NASCAR minumum weigth = *1600* kg.

2001 LMP900 Audi R8 (911kg.*): 3.6L Twinturbo V8: Estimated output  610+ hp
and 516 lb-ft. of torque.

2001 MG Lola EX257 (690kg.*): 2.0L 4cyl inline tubocharded engine: Estimated
output 450+ bhp.

2001 Winston Cup Car - 5.7L Cast-iron / push-rod engine with 1 single 4
barrel carb: Estimated output 750+bhp and 505+ft/lb of torque...

Add to the fact that the LMP's have wider tires, lower CoG, more downforce
and most important of all... 6 speed sequential 'boxes - compared to WC's 4
speed H-pattern....

As for GTS....

The Chevrolet Corvette is much more powerfull then you think...  they use a
5.7l. pushrod engine too - only they got a block made of aluminium and
multipoint fuel injection.. :-)

According to GM's site that engine deliver around 620+bhp and 495+lb/ft. of
torque....  Add to the fact that the GTS also almost 900lbs / 500kg. lighter
that the WC-cars tipping the scales at 2510 lbs / 1138 kg.
Once again, the GTS got the option of using more gears (6) / closer ratios
wilch is good for accelleration.

Just look at your own figures; LMP 900 vs. GTS  -  almost identical power
outputs, yet the LMP900's miles faster due to less weight and more
downforce.

As the saying goes....  'power is nothing without control'!
--
ed_

"Ed Solheim"

  you can say that again.  lol
dave henrie

Oh my God......Ed participated in an OT string!  Now I've seen
everything.....lol....

TP