I need some help understanding how to perform 60-130 times. I do have a V-Box but not sure about the following...............

1. Do I start at exactly 60MPH accellerating through 130mph?

-OR-

2. Can I start at any speed below 60MPH accellerating through 130 using the momentum to obtain the best time?

3. Should I video record my run to make it "official"?

4. Can I do a 1/4 mile run allowing me to capture 60', 0-60, 0-100, 1/8 mile, 1/4 mile, 60-130, and 100-150?

Thank you!

 

1. No
2. Yes
3. No
4. Yes and no.

 

Yes to all, if you can trap 150mph

for 60-130 and 100-150 "record" times, it's better to do on the roads with the right slope

 

Unfortunately, I am in Florida, no slope to speak of here

 

You don't need a lot.

 

move to San Francisco

 

.1 or .2 ? stick or pdk ? stock turbos ?

edit, just saw your other thread. youre making peak tq at 3200rpm ... 715ft lbs.

so start there.. 4th gear and hold on. try a 3rd gear pull too but shift early (if you post your dyno, we'de be able to give you a better idea as to when exactly you should shift and what gear you should be in.
but if youre making torque at 3200 i'de assume youre running out at 5000-5500 ish.
find a nice declining road, put her in 4th at 2800rpms, hold the brakes a little.. slam the gas and let the boost build up and see what you come up with, then do a 3rd gear pull but shift early and let her redline in 4th.

 

Two different cars............GT2 and Turbo S.

I am going to play with the shift points now that I understand the "rules". The GT2 peaks at 3750 and again at ~ 5100.

 

Don't be disappointed with times. With the rules being the way they are, there are lots of tricks to achieve great times.

3% slope with no max variation on a 60-130mph run, it's a game.

You can start on a incline, where the car doesn't have problems pulling hard at low speeds, and end up on a massive decline, where it usually starts to get slower. If in this distance the difference in height is less than 3%, it's a valid time.

With high torque cars, that have wheel spin problems, it's probably better to start on a decline and end up on a incline.

Best 68mm VTG time is 5.50s and there is a lot of controversy about that time (boost levels)
I wonder if people even noticed that, not too long ago, a 63,5mm VTG did 4.84s

 

It is a shame the "boundries" are not well defined to prevent subtle advantages for those knowing how to "bend" them in their favor. What is the use if the rules are not definitive? Regardless, I will give it my best shot.

Thank you!

 

The boundaries are as defined in the best way possible to still allow people from all over the world to compare their times to others. Not everyone lives in an almost completely flat area like Florida.

FWIW, my best times have been slightly uphill. Have fun.

 

Understood..........

I was also wondering about the 1/4 mile, why are V-box times not acceptable if coupled with a video? I understand the reason of falsifying the data may be obvious such as simply running "X" car for "Y" cars time. However, not knowing how accurate a V-Box is I thought that may be the issue as deceipt could be applied to 60-130 times also. The diaper rule is a PITA

 

The vbox is very accurate, but just like any GPS based unit, still has a difficult time accurately comparing to NHRA dragstrips that use beams, deep staging, and averaged mph for trap speed. There are so many dragstrips around the world, that it's easy enough for most people to get a couple official runs in every now and then.

 

I have the full intention of running both cars in the 1/4. As the required diapers seem to be one size fit all I am a bit concern given our rear engine design. Has anyone purchased diapers which are in fact reasonably simple to apply and remove? If so, can you provide vendor and PN's? I would like to avoid the hastle of an exchange or credit.

Thanks!