3,000 to 8,000 3rd gear test,

[RS4JAY]

Thread revival.

I have just read through this whole thread & although I found some good information on the “Arthur” test, I also find some of the tests to be inconclusive & inconsistent.

There have been a few that have been quite detailed & lots that have not. To get the best from this we need a good accuracy of weight also, as when it comes to 10th of a second that can make all the difference. I done this run yesterday & my stats/results were -

Car -
2007 B7 RS4 Avant
Well spec’d
96,000 miles & well maintained with very good history
Totally Standard (to my knowledge)
Pirelli P Zero tyres 3/4mm left.
Carbon Clean carried out approx 20,000 ago by previous owner.

Test Conditions

Outside temperature 5°C
Dry
Alt 122 meters
Straight road but somewhat bumpy

Weight
Full tank of shell Vpower
Around 10kg in the boot
Driver around 130kg

Test
Car in sport mode
3rd gear - 3k rpm to 8k rpm
Accelerator floored at 3k rpm (I see some do this from 2700 rpm)

Results where consistent for me at 8.6 seconds. I also done a couple of standing starts & managed 4.7 to 4.9, I’m not sure how accurate I was with the starts though, but close enough.

[tommchowat]

I got a bit curious about this so thought I'd have a go on the way back from work. Only did one run because the only bit of good road for it is towards the end of my journey.

2007 Saloon, 65k miles
Sport mode on, air con off
7/8ths of a tank of fuel
Driver + baggage weight 110kg
Road flat, straight, condition damp
Outside temp 4
Oil temp 87
Mods, nothing really, carbon clean done a month ago, K&N air filter

Came out at 7.7 seconds. However I think I probably stopped the timer at 7900rpm instead of 8, so probably looking at 7.8 or 7.9.

Obviously this is only one run and I'm sure an average over a few would be a little slower, but seems good to me!

[RS4JAY]

I got a bit curious about this so thought I'd have a go on the way back from work. Only did one run because the only bit of good road for it is towards the end of my journey.

2007 Saloon, 65k miles
Sport mode on, air con off
7/8ths of a tank of fuel
Driver + baggage weight 110kg
Road flat, straight, condition damp
Outside temp 4
Oil temp 87
Mods, nothing really, carbon clean done a month ago, K&N air filter

Came out at 7.7 seconds. However I think I probably stopped the timer at 7900rpm instead of 8, so probably looking at 7.8 or 7.9.

Obviously this is only one run and I'm sure an average over a few would be a little slower, but seems good to me!

That’s a good time if it’s accurate mate. Although does seem a little ambitious for a standard car from what reading I’ve done.

[Starry]

Im not convinced about this test, it would depend on how hard your accelerating when you hit the 3000 revs, a better test would be sit at a steady 3k and then floor it i would of said.

[RS4JAY]

Im not convinced about this test, it would depend on how hard your accelerating when you hit the 3000 revs, a better test would be sit at a steady 3k and then floor it i would of said.

That’s what I done mate.

[Starry]

I'll give it a go tomorrow if i can, steady 3k then floored to 8k.

[iduff]

If you start at somewhat below 3K, by the time you reach 3K you're fully on it and any ramp-up is well in the past, and any responsiveness issues are eliminated.

In an effort to minimize driver task loading, the following might be an easy way to do this:
- Put the lap timer on screen,
- Start the lap timer, let it start timing, so don't need to start it exactly when you hit 3K,
- Start your phone to capture video,
- Hold your phone to video the tach, and lap timer as it rolls along ticking off time,
- Floor it at like 2,500 in 3rd so you're fully and evenly at WOT by 3K,
- Carry on until you're somewhat past 8K,
- Back off your acceleration,
- Stop capturing video.

Then you have a video on your phone that you can slo-mo/frame-by-frame your way through. You can figure out pretty accurately what the lap timer says the time was when you started at for the 3K mark, and what the lap timer says the time was when you finished at for the 8K mark.

Do a little of that mathemagical stuff, subtracting the lap timer time at 3K from the lap timer time at 8K, and you have a pretty accurate time for WOT from 3K to 8K. You can even post the video here to silence the haters when you record a 5 second time with your nitrous/supercharged crotch rocket!

[tommchowat]

I got a bit curious about this so thought I'd have a go on the way back from work. Only did one run because the only bit of good road for it is towards the end of my journey.

2007 Saloon, 65k miles
Sport mode on, air con off
7/8ths of a tank of fuel
Driver + baggage weight 110kg
Road flat, straight, condition damp
Outside temp 4
Oil temp 87
Mods, nothing really, carbon clean done a month ago, K&N air filter

Came out at 7.7 seconds. However I think I probably stopped the timer at 7900rpm instead of 8, so probably looking at 7.8 or 7.9.

Obviously this is only one run and I'm sure an average over a few would be a little slower, but seems good to me!

That’s a good time if it’s accurate mate. Although does seem a little ambitious for a standard car from what reading I’ve done.

Yeah I agree mate. I did another run this evening in exactly the same conditions, though outside temp was 7, slightly less fuel on board and the road was dry, and she did an 8.1. Fairly confident about my timing there too.

I'd better not make a habit of this on every journey back from work!

[holsy10]

Hi everyone

Noticed last couple of week the car seems sluggish. So done a couple of 3k to 8k test and I think I have a problem as my times were:

Best time
10.2
10.5

Worst time
11.2

Not good

I’m in the Norwich area and I’m assuming a carbon clean is needed but where do I take it.

Cheers
Lewis



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[RS4JAY]

Hi everyone

Noticed last couple of week the car seems sluggish. So done a couple of 3k to 8k test and I think I have a problem as my times were:

Best time
10.2
10.5

Worst time
11.2

Not good

I’m in the Norwich area and I’m assuming a carbon clean is needed but where do I take it.

Cheers
Lewis



Sent from my iPhone using Tapatalk

Pretty bad that mate. I'd say you have sensor failure or vac leak or something also.

[holsy10]

I was thinking it could be a vacuum leak.

I recently had the car diagnostics done as a tyre pressure was playing up but the car had no other faults what so ever.

Cheers for the reply




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[holsy10]

So next question is how do you check or is there something I should home in on straight off the bat?

Is this something my local garage could do with ease?


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[Mav8]

After reading up on this thread, was curious to see what mine would do.
2007 -Avant
Full tank of fuel
Driver & passenger
Temp 0.0
Flat road

MRC map
Zorst
C/clean
Did 4 runs
Times ranged from 7.6-7.8
Mav8