Top speed at the Glen
#17
Z Man.
It used to be really hairy and exciting before the days of the bus stop.
Having to decelerate into the outer loop...............
My heart rate goes up just thinking about it.
I miss it.
eugene.
It used to be really hairy and exciting before the days of the bus stop.
Having to decelerate into the outer loop...............
My heart rate goes up just thinking about it.
I miss it.
eugene.
#19
My DL-90 has indicated a Vmax of 155 before the busstop but nobody seems to believe it
My 914/6 runs out of gear at 142, and John is always in my mirrors
I top out in fifth a bit before the bus stop though....
#21
Geoffrey and all,
Thanks. I knew something large had to be under the hood. As a novice DE'er and spectator at the Glen, I'm guessing a sub 2:00 lap?? Is my guess close?
Out of curiousity what will a well driven GT3R Cup car hit on the back straight. I recall they lap maybe in the highest 1:50's, lowest 2:00's.
Lastly, a saw a 962 last year at the Vintage races at the Glen lap about as fast as I've seen...I thought I timed him in the highest 1:40's. Was I dreaming? Any guess as to his back straight speed?
Mike
Thanks. I knew something large had to be under the hood. As a novice DE'er and spectator at the Glen, I'm guessing a sub 2:00 lap?? Is my guess close?
Out of curiousity what will a well driven GT3R Cup car hit on the back straight. I recall they lap maybe in the highest 1:50's, lowest 2:00's.
Lastly, a saw a 962 last year at the Vintage races at the Glen lap about as fast as I've seen...I thought I timed him in the highest 1:40's. Was I dreaming? Any guess as to his back straight speed?
Mike
#23
Burning Brakes
Z-man
I'll confirm the 130-ish in my 968 Engined 944. Are you in 5th at this point? I have the stock "S" 5-speed gearbox with the short gears (as well as the NA's brick aerodynamics) and am really sucking wind as the shift to 5th puts me out of the powerband about halfway between 4 and the bus stop.
LOTS of lift at that speed - she's about ready to take off.
Matt
I'll confirm the 130-ish in my 968 Engined 944. Are you in 5th at this point? I have the stock "S" 5-speed gearbox with the short gears (as well as the NA's brick aerodynamics) and am really sucking wind as the shift to 5th puts me out of the powerband about halfway between 4 and the bus stop.
LOTS of lift at that speed - she's about ready to take off.
Matt
#25
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DL-90 confirmed 153 in my 'street' 944 turbo. (370rwhp).
I did get to see 140 in a snow squall once! Very entertaining. I was suprised at the grip - it was the lack of vision that capped the speed that day.
BTW - 155 at VIR.
I did get to see 140 in a snow squall once! Very entertaining. I was suprised at the grip - it was the lack of vision that capped the speed that day.
BTW - 155 at VIR.
#26
Lifetime Rennlist Member
Originally posted by Chris White
DL-90 confirmed 153 in my 'street' 944 turbo. (370rwhp).
I did get to see 140 in a snow squall once! Very entertaining. I was suprised at the grip - it was the lack of vision that capped the speed that day.
BTW - 155 at VIR.
DL-90 confirmed 153 in my 'street' 944 turbo. (370rwhp).
I did get to see 140 in a snow squall once! Very entertaining. I was suprised at the grip - it was the lack of vision that capped the speed that day.
BTW - 155 at VIR.
Thanks
#27
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Join Date: Jun 2001
Location: Ontario, Canada
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If you are racing in the usual I class pack at the Glen, you'll see WAY more revs when you are in the very considerable draft than when you are on your own. In I class cars you are flat from turn 1 all the way to the bus stop.
When by myself, I'm usually bouncing off the rev limiter in 4th before braking at the bus stop but if behind one or even better, more than one car, the major draft through the esses and down the first part of the straight results in so much more momentum that you have to shift to 5th as you pull out of the draft and attempt the late braking pass.
This is one of the best parts about the Glen. The other place the draft is a real factor (in I class anyway) is down the front straight.
I've also noticed that my 924S, being a little skinnier, seems to benefit more from the draft than those wider guys.
gd
When by myself, I'm usually bouncing off the rev limiter in 4th before braking at the bus stop but if behind one or even better, more than one car, the major draft through the esses and down the first part of the straight results in so much more momentum that you have to shift to 5th as you pull out of the draft and attempt the late braking pass.
This is one of the best parts about the Glen. The other place the draft is a real factor (in I class anyway) is down the front straight.
I've also noticed that my 924S, being a little skinnier, seems to benefit more from the draft than those wider guys.
gd
#28
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The DL-90 uses two methods - a frequency count from a wheel (programable input from speedo pick up) and a differential GPS signal. both are pretty accurate with the GPS looking better at higher speeds.
#29
Nordschleife Master
My understanding is that the weel speed input to the DL-90 is not active in the software yet and will not replace the GPS speed measurement. It will be used for slip measurement only, not wheel speed.
#30
Race Director
Originally posted by Matt Marks
Z-man
I'll confirm the 130-ish in my 968 Engined 944. Are you in 5th at this point? I have the stock "S" 5-speed gearbox with the short gears (as well as the NA's brick aerodynamics) and am really sucking wind as the shift to 5th puts me out of the powerband about halfway between 4 and the bus stop.
LOTS of lift at that speed - she's about ready to take off.
Matt
Z-man
I'll confirm the 130-ish in my 968 Engined 944. Are you in 5th at this point? I have the stock "S" 5-speed gearbox with the short gears (as well as the NA's brick aerodynamics) and am really sucking wind as the shift to 5th puts me out of the powerband about halfway between 4 and the bus stop.
LOTS of lift at that speed - she's about ready to take off.
Matt
Eugene: was the outerloop without the bus stop as scary as the front straight at the Bridge?
-Z-man.