Quick question about Vmax

[Paul_M3]

Hi guys,

Just thought I'd get a bit of a heads up on the format / etiquette on Vmax days.

Looking at previous videos, two cars start off on the back straight side by side.

What happens when you get to the corner before the 2 mile straight?

Do you go round side by side, or does one car give way so you can both take the racing line around the corner before returning to your 'lanes'?

I'm guessing you don't want to get too close to each other in case you spin, and to avoid stone chips?

Thanks.

[jeremyc]

Paul_M3 said:

What happens when you get to the corner before the 2 mile straight?

Do you go round side by side, or does one car give way so you can both take the racing line around the corner before returning to your 'lanes'?

Stick to your lanes round the corner.

[derestrictor]

The amount of grapeshot thrown up means that any form of close quarter racing in the normal sense is ill advised.

[Paul_M3]

Seems sensible, just thought I'd check as it wasn't clear from some of the videos I'd seen.

Thanks guys.

[dbv8]

If i get there....
leave the Ferrari on the line, gain a substantial lead into and around the bend then watch as it comes screaming passed halfway down the back straight

[ThatPhilBrettGuy]

It's always good to remember that steaming around the bend as fast as you can usually makes little to no difference to the speed through the trap. How the wind acts from about half way down seems to make the most difference.

[jeremyc]

ThatPhilBrettGuy said:

It's always good to remember that steaming around the bend as fast as you can usually makes little to no difference to the speed through the trap. How the wind acts from about half way down seems to make the most difference.

Standing start from the end of the runway probably gives identical speeds through the traps.

Not as much fun mind you.

[CraigW]

the 2 gents above speak the truth. We ALWAYS advise erring on the side of caution on that and the subsequent bends and 99.999% of the time everyone at vmax is super considerate and sensible which ensures everyone goes home with cars pristine.

[dbv8]

I wasnt suggesting driving like a hooligan
I guess lowering the suspension and increasing the tyre pressures would have a benefit on reducing drag.
The nitrous would be used a little off the startline for show but then saved for the final half of the straight i think

[CraigW]

yep realised you didnt mean anything untowards mate.

[ThatPhilBrettGuy]

dbv8 said:

The nitrous would be used a little off the startline for show but then saved for the final half of the straight i think

It's hard to say what's best. The question will be what MPH will the car sustain without gas and how much you dare use. What's the longest you've pressed the button for?

[dbv8]

ThatPhilBrettGuy said:

dbv8 said:

The nitrous would be used a little off the startline for show but then saved for the final half of the straight i think

It's hard to say what's best. The question will be what MPH will the car sustain without gas and how much you dare use. What's the longest you've pressed the button for?

Its operated via a full throttle switch and on the drag strip is 'blipped' in first then pretty much full on through 2,3, and 4th to 125 mph in 11.6 seconds.
I reckon my car can reach 155 easily enough then i aim to use 'just' 150bhp of gas for the final push of say 5 seconds. I have used upto 250 bhp on the 1/4 but as the car is accelerating fast its a lot less strain on the engine.

[CraigW]

be very interested to see the vmax with and without nitrous.

[dbv8]

Ive seen over 150 easy enough on the tomtom before the impending engine rebuild so im confident for over 155. On the gas the car is a different beast altogether.
1/4 mile was 13.0 @ 107 without down to 11.6 @ 125 with.
See my clips on youtube under 'dbv8nos'
example... http://www.youtube.com/watch?gl=GB&hl=en-GB&am...

[ThatPhilBrettGuy]

dbv8 said:

...but as the car is accelerating fast its a lot less strain on the engine.

There isn't actually. The only way there's less strain is if the engine isn't doing the work, and unless you're wheel spinning, it is!

Take loads of gas and experiment as Craig says. You'll get plenty of runs in assuming you're in the noise limits

[dbv8]

ThatPhilBrettGuy said:

Take loads of gas and experiment as Craig says. You'll get plenty of runs in assuming you're in the noise limits

Noise limits could be a problem with a new decat pipe to be fitted, i will get it checked.
I run twin 11lb bottles and will have 2 spare so theres plenty of gas no worries

[JBL930]

Is Brett coming, you could have a NOS race! Although we'd have to make sure which way the earth was rotating, just in case he got traction..

[ThatPhilBrettGuy]

JBL930 said:

Is Brett coming, you could have a NOS race! Although we'd have to make sure which way the earth was rotating, just in case he got traction..

I'd forgotten about 'all the best'.

[neil_bolton]

Good lord, help me if he does.

[crisisjez]

I can guarantee you Soph will have the NOS on in her car for the entire run, and if I tell her not to or turn it off she`ll probably have my hand off


(Mind you it is only a 50 wet shot kit)

Edited by crisisjez on Thursday 14th January 14:12