reality is, find yourself a standardized acceleration test, and compare your car to stock results
if there’s a quarter mile dragstrip, that would be great because we have a big database of results. If not, a pbox 1/4 mile test would be a good proxy, just have to have the file reviewed for elevation change to ensure it’s a flat area (sometimes flat roads aren’t as they appear)
Or you could race a stock RS4 if you know someone with one. That’s always effective.
What gear should the 003 & 020 logs be recorded in when accelerating.
BUMP… For my question.
3rd gear
flat road
windows closed
A/C off (everything off)
no extra weight in the car
full throttle from 1000-8000
goes to 101 MPH so be careful
sniped…
Don’t go to 8000 rpm in your S4 though.
why the fuck not? more RPM ALWAYS = more power, guaranteed*
*this is not a guarantee
Not in fourth gear I don’t… Our roads aren’t long enough… LOL.
Third Gear, Noted.
I’ll probably settle for 7K… :-\ :-\
3rd 2k to 7k. You don’t have a 8000 rev limit so that would be hard. Make sure the car is warmed up but not heat soaked.
Make note, this is an RS4 thread.
So countvohn, justincredible and jimsgreen - either rev your cars to 8000 or GTFO.
Pussies.
I have no choice. You know me I would shit at 9k if I could. I was just helping so Jim didn’t keep trying to get to 8k and wondering why there was this big issue with revving the car past 7k
Cheers Justin - Yep I was aware of my (S4) 7k limiter, I’ve hit it a couple of times… LOL.
Finally got the chance to do two consecutive pulls this afternoon, with slighter colder ambient temps.
2nd pull is better than 1st mostly i guess due to lwoer intake air temp.
https://www.dropbox.com/s/fou0xks4jcvths6/19092014.xlsx?dl=0
But in any case all findings have been confirmed… 
I can’t open the link I’ll have to try later. Did you see a nice improvement with the air box mod? What would you consider your findings.
Looks nice!
Due to better ambient conditions (-2 Celcius vs. the air intake log) the stock airbox supports decrease in air intake temps. The car is less nervous (shown in the low rpm range) and more smooth in its acceleration. It achieves avg rpms/sec vs. air intake:
Stock (25 Celcius) - Air Intake (27 Celcius) - Air intake (28 Calecius)
3k-4k:591 - 610 - 552
4k-5k: 616 - 596 - 540
5k-6k: 574 - 626 - 552
6k-7k: 542 - 533 - 508
7k-8k: 452 - 480 - 400
Obviously there is lot to account for the difference in ambient but the above differencees also stem I think from the airbox.
On a side note, the car’s load is significantly lwoer when operating on teh stock rather than on teh air intake. Please note that logs are performed on the same spot, with teh same direction for comparison reasons.
I will try to re-install the air intake once ambeint drop around 15 so as to check the car’s behaviour.
From the numbers you posted it seems you backed up what CV posted. And from the data you provided it shows a good gain over the aftermarket intake. Sell that and put that money into more mods.