Powerhaus 200mph
11-18-2003, 06:44 PM
#106
Nordschleife Master
Originally posted by FSAEracer03
Aerodynamic stablity goes coincides with the square of velocity... so if you're running stock aero setup, you're ****ed. But if you happen to run a front splitter and and adjustable wing, you will actually have a heavier car as the speeds increase. Once again, it's proportional to the square of velocity. But then hp DOES become an issue as your car is now getting heavier as you go faster, making a nice drag-limited top speed unless you have the power to overcome the air resistance.
Kevin
Aerodynamic stablity goes coincides with the square of velocity... so if you're running stock aero setup, you're ****ed. But if you happen to run a front splitter and and adjustable wing, you will actually have a heavier car as the speeds increase. Once again, it's proportional to the square of velocity. But then hp DOES become an issue as your car is now getting heavier as you go faster, making a nice drag-limited top speed unless you have the power to overcome the air resistance.
Kevin
who made the wing??
11-18-2003, 10:30 PM
#108
TRB0 GUY
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If they had a problem with them, they obviously bought ****. a nice aluminum wing (maybe T6) would have no problem at higher speeds. At speeds that high, depending on the setting though of course, wings will be generating 500 and more pounds of downforce. So if these people are having trouble finding a suitable wing to keep them down safely, get a shop to make one and sit 500 or more pounds on the wing!! It would be much better to break the wing at 0 mph in front of those who made it then at 200 mph w/o physical proof of it's threshhold.
Kevin
Kevin
11-19-2003, 01:38 AM
#109
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Originally posted by toddk911
WOW, those guys at Porsche think of eveything
Anyone have the formula for top speed for these figures???
WOW, those guys at Porsche think of eveything
Anyone have the formula for top speed for these figures???
The formula I've always used, & it get's me w/in ~1mph everywhere I've seen, is....
RD X RPM X 2.96 / OR X 1000 = speed
RD = Rolling diamter
OR = overall ratio (in specific gear)
Sooo, for a Turbo S-
24.68 X 6400 x 2.96 / (3.38 x .83) X 1000 = S
467537.92 / 2.8054 X 1000 = S
166.66 = S
That's IT- I don't care HOW much power you HAVE- 40000RWP- if you don't have taller gearing, you will NOT break 167mph- PERIOD. Of course, IF you built an engine that COULD make power ABOVE the redline (& not blow while doing so) as Tony & several others have mentioned, then you COULD break it, but I don't know of many 951's (ANY personally) that CAN make power above ~6500, REGARDLESS of whether or not they RAISE their rev limiters... I know Scott Gomes, JM, Bob Norwood, & several others have built engines w/dif valves, cams, etc that can, but that's a dif story...
A 951S would need 7685rpms to hit 200mph @ 6400. A regular 951 would need slightly less: ~7625...
Last edited by Robby; 02-28-2004 at 06:56 AM.
11-25-2003, 11:39 AM
#110
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Using a digital readout, my car indicated 214mph on this rather long straight. It was pulling "strong" right up to the braking point. A longer straight and who knows, 220, maybe 225. Scary stuff. I was never able to hit those kinda speeds on Nintendo. I love this PS2. And that's the only way any of us are going north of 2 bucks. Would a good 1800w hair dryer, work like a turbo on PS2? If it does, will adding one of those Tornado devices be overkill? With all the boost 1800w delivers, can I run a stock (15 amp) fuse. Or, do I need to get a 25 amper and watch the outlet smoke?
11-25-2003, 04:18 PM
#112
Three Wheelin'
Yeah, but where do you attach them? Power wire, or controller, or rca cables? Do I need to buy more than one?
Help!!!!! I need to crack 200 mph, too!
86944turbo,
Thanks for making the thread real.
-J
Help!!!!! I need to crack 200 mph, too!
86944turbo,
Thanks for making the thread real.
-J
